Remove StorageException from throws clauses

Change-Id: I48a0169293ddf766fbbd924cb310f9b8dacc58cf

java/com/google/gerrit/acceptance/AbstractDaemonTest.java

@@ -53,7 +53,6 @@ import com.google.gerrit.common.data.Permission;
 import com.google.gerrit.common.data.PermissionRange;
 import com.google.gerrit.common.data.PermissionRule;
 import com.google.gerrit.common.data.PermissionRule.Action;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.GerritApi;
 import com.google.gerrit.extensions.api.changes.ReviewInput;
 import com.google.gerrit.extensions.api.changes.RevisionApi;
@@ -1087,7 +1086,7 @@ public abstract class AbstractDaemonTest {
         .inOrder();
   }
 
-  protected PatchSet getPatchSet(PatchSet.Id psId) throws StorageException {
+  protected PatchSet getPatchSet(PatchSet.Id psId) {
     return changeDataFactory.create(project, psId.getParentKey()).patchSet(psId);
   }
 
@@ -1416,7 +1415,7 @@ public abstract class AbstractDaemonTest {
   }
 
   protected void watch(PushOneCommit.Result r, ProjectWatchInfoConfiguration config)
-      throws StorageException, RestApiException {
+      throws RestApiException {
     watch(r.getChange().project().get(), config);
   }
 

java/com/google/gerrit/acceptance/AccountCreator.java

@@ -21,7 +21,6 @@ import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
 import com.google.gerrit.common.Nullable;
 import com.google.gerrit.exceptions.NoSuchGroupException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.reviewdb.client.AccountGroup;
 import com.google.gerrit.server.ServerInitiated;
@@ -157,7 +156,7 @@ public class AccountCreator {
   }
 
   private void addGroupMember(AccountGroup.UUID groupUuid, Account.Id accountId)
-      throws StorageException, IOException, NoSuchGroupException, ConfigInvalidException {
+      throws IOException, NoSuchGroupException, ConfigInvalidException {
     InternalGroupUpdate groupUpdate =
         InternalGroupUpdate.builder()
             .setMemberModification(memberIds -> Sets.union(memberIds, ImmutableSet.of(accountId)))

java/com/google/gerrit/acceptance/PushOneCommit.java

@@ -24,7 +24,6 @@ import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Sets;
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.PatchSet;
@@ -334,15 +333,15 @@ public class PushOneCommit {
       this.resSubj = subject;
     }
 
-    public ChangeData getChange() throws StorageException {
+    public ChangeData getChange() {
       return Iterables.getOnlyElement(queryProvider.get().byKeyPrefix(changeId));
     }
 
-    public PatchSet getPatchSet() throws StorageException {
+    public PatchSet getPatchSet() {
       return getChange().currentPatchSet();
     }
 
-    public PatchSet.Id getPatchSetId() throws StorageException {
+    public PatchSet.Id getPatchSetId() {
       return getChange().change().currentPatchSetId();
     }
 
@@ -359,8 +358,7 @@ public class PushOneCommit {
     }
 
     public void assertChange(
-        Change.Status expectedStatus, String expectedTopic, TestAccount... expectedReviewers)
-        throws StorageException {
+        Change.Status expectedStatus, String expectedTopic, TestAccount... expectedReviewers) {
       assertChange(
           expectedStatus, expectedTopic, Arrays.asList(expectedReviewers), ImmutableList.of());
     }
@@ -369,8 +367,7 @@ public class PushOneCommit {
         Change.Status expectedStatus,
         String expectedTopic,
         List<TestAccount> expectedReviewers,
-        List<TestAccount> expectedCcs)
-        throws StorageException {
+        List<TestAccount> expectedCcs) {
       Change c = getChange().change();
       assertThat(c.getSubject()).isEqualTo(resSubj);
       assertThat(c.getStatus()).isEqualTo(expectedStatus);
@@ -380,8 +377,7 @@ public class PushOneCommit {
     }
 
     private void assertReviewers(
-        Change c, ReviewerStateInternal state, List<TestAccount> expectedReviewers)
-        throws StorageException {
+        Change c, ReviewerStateInternal state, List<TestAccount> expectedReviewers) {
       Iterable<Account.Id> actualIds =
           approvalsUtil.getReviewers(notesFactory.createChecked(c)).byState(state);
       assertThat(actualIds)

java/com/google/gerrit/acceptance/testsuite/account/AccountOperationsImpl.java

@@ -16,7 +16,6 @@ package com.google.gerrit.acceptance.testsuite.account;
 
 import static com.google.common.base.Preconditions.checkState;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.server.ServerInitiated;
 import com.google.gerrit.server.account.AccountState;
@@ -68,7 +67,7 @@ public class AccountOperationsImpl implements AccountOperations {
   }
 
   private AccountState createAccount(AccountsUpdate.AccountUpdater accountUpdater)
-      throws StorageException, IOException, ConfigInvalidException {
+      throws IOException, ConfigInvalidException {
     Account.Id accountId = new Account.Id(seq.nextAccountId());
     return accountsUpdate.insert("Create Test Account", accountId, accountUpdater);
   }
@@ -146,7 +145,7 @@ public class AccountOperationsImpl implements AccountOperations {
     }
 
     private void updateAccount(TestAccountUpdate accountUpdate)
-        throws StorageException, IOException, ConfigInvalidException {
+        throws IOException, ConfigInvalidException {
       AccountsUpdate.AccountUpdater accountUpdater =
           (account, updateBuilder) -> fillBuilder(updateBuilder, accountUpdate, accountId);
       Optional<AccountState> updatedAccount = updateAccount(accountUpdater);
@@ -154,7 +153,7 @@ public class AccountOperationsImpl implements AccountOperations {
     }
 
     private Optional<AccountState> updateAccount(AccountsUpdate.AccountUpdater accountUpdater)
-        throws StorageException, IOException, ConfigInvalidException {
+        throws IOException, ConfigInvalidException {
       return accountsUpdate.update("Update Test Account", accountId, accountUpdater);
     }
 

java/com/google/gerrit/acceptance/testsuite/group/GroupOperationsImpl.java

@@ -18,7 +18,6 @@ import static com.google.common.base.Preconditions.checkState;
 
 import com.google.gerrit.exceptions.DuplicateKeyException;
 import com.google.gerrit.exceptions.NoSuchGroupException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.AccountGroup;
 import com.google.gerrit.server.GerritPersonIdent;
 import com.google.gerrit.server.ServerInitiated;
@@ -70,7 +69,7 @@ public class GroupOperationsImpl implements GroupOperations {
   }
 
   private AccountGroup.UUID createNewGroup(TestGroupCreation groupCreation)
-      throws ConfigInvalidException, IOException, StorageException {
+      throws ConfigInvalidException, IOException {
     InternalGroupCreation internalGroupCreation = toInternalGroupCreation(groupCreation);
     InternalGroupUpdate internalGroupUpdate = toInternalGroupUpdate(groupCreation);
     InternalGroup internalGroup =
@@ -78,8 +77,7 @@ public class GroupOperationsImpl implements GroupOperations {
     return internalGroup.getGroupUUID();
   }
 
-  private InternalGroupCreation toInternalGroupCreation(TestGroupCreation groupCreation)
-      throws StorageException {
+  private InternalGroupCreation toInternalGroupCreation(TestGroupCreation groupCreation) {
     AccountGroup.Id groupId = new AccountGroup.Id(seq.nextGroupId());
     String groupName = groupCreation.name().orElse("group-with-id-" + groupId.get());
     AccountGroup.UUID groupUuid = GroupUUID.make(groupName, serverIdent);

java/com/google/gerrit/elasticsearch/AbstractElasticIndex.java

@@ -377,16 +377,16 @@ abstract class AbstractElasticIndex<K, V> implements Index<K, V> {
     }
 
     @Override
-    public ResultSet<V> read() throws StorageException {
+    public ResultSet<V> read() {
       return readImpl((doc) -> AbstractElasticIndex.this.fromDocument(doc, opts.fields()));
     }
 
     @Override
-    public ResultSet<FieldBundle> readRaw() throws StorageException {
+    public ResultSet<FieldBundle> readRaw() {
       return readImpl(AbstractElasticIndex.this::toFieldBundle);
     }
 
-    private <T> ResultSet<T> readImpl(Function<JsonObject, T> mapper) throws StorageException {
+    private <T> ResultSet<T> readImpl(Function<JsonObject, T> mapper) {
       try {
         String uri = getURI(index, SEARCH);
         Response response =

java/com/google/gerrit/gpg/GerritPublicKeyChecker.java

@@ -156,8 +156,7 @@ public class GerritPublicKeyChecker extends PublicKeyChecker {
     return CheckResult.bad(missingUserIds(allowedUserIds));
   }
 
-  private CheckResult checkIdsForArbitraryUser(PGPPublicKey key)
-      throws PGPException, StorageException {
+  private CheckResult checkIdsForArbitraryUser(PGPPublicKey key) throws PGPException {
     List<AccountState> accountStates = accountQueryProvider.get().byExternalId(toExtIdKey(key));
     if (accountStates.isEmpty()) {
       return CheckResult.bad("Key is not associated with any users");

java/com/google/gerrit/gpg/server/DeleteGpgKey.java

@@ -18,7 +18,6 @@ import static com.google.gerrit.gpg.PublicKeyStore.keyIdToString;
 import static com.google.gerrit.server.account.externalids.ExternalId.SCHEME_GPGKEY;
 
 import com.google.common.io.BaseEncoding;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.common.Input;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
@@ -63,7 +62,7 @@ public class DeleteGpgKey implements RestModifyView<GpgKey, Input> {
 
   @Override
   public Response<?> apply(GpgKey rsrc, Input input)
-      throws RestApiException, PGPException, StorageException, IOException, ConfigInvalidException {
+      throws RestApiException, PGPException, IOException, ConfigInvalidException {
     PGPPublicKey key = rsrc.getKeyRing().getPublicKey();
     String fingerprint = BaseEncoding.base16().encode(key.getFingerprint());
     Optional<ExternalId> extId = externalIds.get(ExternalId.Key.create(SCHEME_GPGKEY, fingerprint));

java/com/google/gerrit/gpg/server/GpgKeys.java

@@ -21,7 +21,6 @@ import com.google.common.base.CharMatcher;
 import com.google.common.collect.ImmutableList;
 import com.google.common.flogger.FluentLogger;
 import com.google.common.io.BaseEncoding;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.common.GpgKeyInfo;
 import com.google.gerrit.extensions.registration.DynamicMap;
 import com.google.gerrit.extensions.restapi.AuthException;
@@ -86,7 +85,7 @@ public class GpgKeys implements ChildCollection<AccountResource, GpgKey> {
 
   @Override
   public GpgKey parse(AccountResource parent, IdString id)
-      throws ResourceNotFoundException, PGPException, StorageException, IOException {
+      throws ResourceNotFoundException, PGPException, IOException {
     checkVisible(self, parent);
 
     ExternalId gpgKeyExtId = findGpgKey(id.get(), getGpgExtIds(parent));
@@ -142,7 +141,7 @@ public class GpgKeys implements ChildCollection<AccountResource, GpgKey> {
   public class ListGpgKeys implements RestReadView<AccountResource> {
     @Override
     public Map<String, GpgKeyInfo> apply(AccountResource rsrc)
-        throws StorageException, PGPException, IOException, ResourceNotFoundException {
+        throws PGPException, IOException, ResourceNotFoundException {
       checkVisible(self, rsrc);
       Map<String, GpgKeyInfo> keys = new HashMap<>();
       try (PublicKeyStore store = storeProvider.get()) {

java/com/google/gerrit/gpg/server/PostGpgKeys.java

@@ -27,7 +27,6 @@ import com.google.common.collect.Maps;
 import com.google.common.flogger.FluentLogger;
 import com.google.common.io.BaseEncoding;
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.accounts.GpgKeysInput;
 import com.google.gerrit.extensions.common.GpgKeyInfo;
 import com.google.gerrit.extensions.restapi.BadRequestException;
@@ -108,7 +107,7 @@ public class PostGpgKeys implements RestModifyView<AccountResource, GpgKeysInput
   @Override
   public Map<String, GpgKeyInfo> apply(AccountResource rsrc, GpgKeysInput input)
       throws ResourceNotFoundException, BadRequestException, ResourceConflictException,
-          PGPException, StorageException, IOException, ConfigInvalidException {
+          PGPException, IOException, ConfigInvalidException {
     GpgKeys.checkVisible(self, rsrc);
 
     Collection<ExternalId> existingExtIds =
@@ -249,7 +248,7 @@ public class PostGpgKeys implements RestModifyView<AccountResource, GpgKeysInput
     return ExternalId.Key.create(SCHEME_GPGKEY, BaseEncoding.base16().encode(fp));
   }
 
-  private Account getAccountByExternalId(ExternalId.Key extIdKey) throws StorageException {
+  private Account getAccountByExternalId(ExternalId.Key extIdKey) {
     List<AccountState> accountStates = accountQueryProvider.get().byExternalId(extIdKey);
 
     if (accountStates.isEmpty()) {

java/com/google/gerrit/httpd/auth/container/HttpLoginServlet.java

@@ -152,7 +152,7 @@ class HttpLoginServlet extends HttpServlet {
   }
 
   private void updateRemoteExternalId(AuthResult arsp, String remoteAuthToken)
-      throws AccountException, StorageException, IOException, ConfigInvalidException {
+      throws AccountException, IOException, ConfigInvalidException {
     accountManager.updateLink(
         arsp.getAccountId(),
         new AuthRequest(ExternalId.Key.create(SCHEME_EXTERNAL, remoteAuthToken)));

java/com/google/gerrit/index/FieldDef.java

@@ -62,7 +62,7 @@ public final class FieldDef<I, T> {
   @FunctionalInterface
   public interface Getter<I, T> {
     @Nullable
-    T get(I input) throws StorageException, IOException;
+    T get(I input) throws IOException;
   }
 
   public static class Builder<T> {
@@ -133,10 +133,9 @@ public final class FieldDef<I, T> {
    *
    * @param input input object.
    * @return the field value(s) to index.
-   * @throws StorageException
    */
   @Nullable
-  public T get(I input) throws StorageException {
+  public T get(I input) {
     try {
       return getter.get(input);
     } catch (IOException e) {

java/com/google/gerrit/index/query/AndPredicate.java

@@ -16,7 +16,6 @@ package com.google.gerrit.index.query;
 
 import static com.google.common.base.Preconditions.checkState;
 
-import com.google.gerrit.exceptions.StorageException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
@@ -82,7 +81,7 @@ public class AndPredicate<T> extends Predicate<T> implements Matchable<T> {
   }
 
   @Override
-  public boolean match(T object) throws StorageException {
+  public boolean match(T object) {
     for (Predicate<T> c : children) {
       checkState(
           c.isMatchable(),

java/com/google/gerrit/index/query/AndSource.java

@@ -74,7 +74,7 @@ public class AndSource<T> extends AndPredicate<T>
   }
 
   @Override
-  public ResultSet<T> read() throws StorageException {
+  public ResultSet<T> read() {
     if (source == null) {
       throw new StorageException("No DataSource: " + this);
     }
@@ -123,7 +123,7 @@ public class AndSource<T> extends AndPredicate<T>
   }
 
   @Override
-  public ResultSet<FieldBundle> readRaw() throws StorageException {
+  public ResultSet<FieldBundle> readRaw() {
     // TOOD(hiesel): Implement
     throw new UnsupportedOperationException("not implemented");
   }
@@ -134,7 +134,7 @@ public class AndSource<T> extends AndPredicate<T>
   }
 
   @Override
-  public boolean match(T object) throws StorageException {
+  public boolean match(T object) {
     if (isVisibleToPredicate != null && !isVisibleToPredicate.match(object)) {
       return false;
     }

java/com/google/gerrit/index/query/DataSource.java

@@ -14,15 +14,13 @@
 
 package com.google.gerrit.index.query;
 
-import com.google.gerrit.exceptions.StorageException;
-
 public interface DataSource<T> {
   /** @return an estimate of the number of results from {@link #read()}. */
   int getCardinality();
 
   /** @return read from the database and return the results. */
-  ResultSet<T> read() throws StorageException;
+  ResultSet<T> read();
 
   /** @return read from the database and return the raw results. */
-  ResultSet<FieldBundle> readRaw() throws StorageException;
+  ResultSet<FieldBundle> readRaw();
 }

java/com/google/gerrit/index/query/IndexedQuery.java

@@ -77,17 +77,17 @@ public class IndexedQuery<I, T> extends Predicate<T> implements DataSource<T>, P
   }
 
   @Override
-  public ResultSet<T> read() throws StorageException {
+  public ResultSet<T> read() {
     return source.read();
   }
 
   @Override
-  public ResultSet<FieldBundle> readRaw() throws StorageException {
+  public ResultSet<FieldBundle> readRaw() {
     return source.readRaw();
   }
 
   @Override
-  public ResultSet<T> restart(int start) throws StorageException {
+  public ResultSet<T> restart(int start) {
     opts = opts.withStart(start);
     try {
       source = index.getSource(pred, opts);

java/com/google/gerrit/index/query/IntegerRangePredicate.java

@@ -14,7 +14,6 @@
 
 package com.google.gerrit.index.query;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.index.FieldDef;
 import com.google.gerrit.index.query.RangeUtil.Range;
 
@@ -30,9 +29,9 @@ public abstract class IntegerRangePredicate<T> extends IndexPredicate<T> {
     }
   }
 
-  protected abstract Integer getValueInt(T object) throws StorageException;
+  protected abstract Integer getValueInt(T object);
 
-  public boolean match(T object) throws StorageException {
+  public boolean match(T object) {
     Integer valueInt = getValueInt(object);
     if (valueInt == null) {
       return false;

java/com/google/gerrit/index/query/InternalQuery.java

@@ -88,11 +88,11 @@ public class InternalQuery<T, Q extends InternalQuery<T, Q>> {
     return self();
   }
 
-  public final List<T> query(Predicate<T> p) throws StorageException {
+  public final List<T> query(Predicate<T> p) {
     return queryResults(p).entities();
   }
 
-  final QueryResult<T> queryResults(Predicate<T> p) throws StorageException {
+  final QueryResult<T> queryResults(Predicate<T> p) {
     try {
       return queryProcessor.query(p);
     } catch (QueryParseException e) {
@@ -110,7 +110,7 @@ public class InternalQuery<T, Q extends InternalQuery<T, Q>> {
    * @return results of the queries, one list of results per input query, in the same order as the
    *     input.
    */
-  public final List<List<T>> query(List<Predicate<T>> queries) throws StorageException {
+  public final List<List<T>> query(List<Predicate<T>> queries) {
     try {
       return Lists.transform(queryProcessor.query(queries), QueryResult::entities);
     } catch (QueryParseException e) {
@@ -144,11 +144,9 @@ public class InternalQuery<T, Q extends InternalQuery<T, Q>> {
    * @param predicate predicate to search for.
    * @param <T> result type.
    * @return exhaustive list of results, subject to the race condition described above.
-   * @throws StorageException if an error occurred.
    */
   protected static <T> ImmutableList<T> queryExhaustively(
-      Supplier<? extends InternalQuery<T, ?>> querySupplier, Predicate<T> predicate)
-      throws StorageException {
+      Supplier<? extends InternalQuery<T, ?>> querySupplier, Predicate<T> predicate) {
     ImmutableList.Builder<T> b = null;
     int start = 0;
     while (true) {

java/com/google/gerrit/index/query/Matchable.java

@@ -14,15 +14,9 @@
 
 package com.google.gerrit.index.query;
 
-import com.google.gerrit.exceptions.StorageException;
-
 public interface Matchable<T> {
-  /**
-   * Does this predicate match this object?
-   *
-   * @throws StorageException
-   */
-  boolean match(T object) throws StorageException;
+  /** Does this predicate match this object? */
+  boolean match(T object);
 
   /** @return a cost estimate to run this predicate, higher figures cost more. */
   int getCost();

java/com/google/gerrit/index/query/NotPredicate.java

@@ -16,7 +16,6 @@ package com.google.gerrit.index.query;
 
 import static com.google.common.base.Preconditions.checkState;
 
-import com.google.gerrit.exceptions.StorageException;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
@@ -64,7 +63,7 @@ public class NotPredicate<T> extends Predicate<T> implements Matchable<T> {
   }
 
   @Override
-  public boolean match(T object) throws StorageException {
+  public boolean match(T object) {
     checkState(
         that.isMatchable(),
         "match invoked, but child predicate %s doesn't implement %s",

java/com/google/gerrit/index/query/OrPredicate.java

@@ -16,7 +16,6 @@ package com.google.gerrit.index.query;
 
 import static com.google.common.base.Preconditions.checkState;
 
-import com.google.gerrit.exceptions.StorageException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
@@ -82,7 +81,7 @@ public class OrPredicate<T> extends Predicate<T> implements Matchable<T> {
   }
 
   @Override
-  public boolean match(T object) throws StorageException {
+  public boolean match(T object) {
     for (Predicate<T> c : children) {
       checkState(
           c.isMatchable(),

java/com/google/gerrit/index/query/Paginated.java

@@ -14,11 +14,10 @@
 
 package com.google.gerrit.index.query;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.index.QueryOptions;
 
 public interface Paginated<T> {
   QueryOptions getOptions();
 
-  ResultSet<T> restart(int start) throws StorageException;
+  ResultSet<T> restart(int start);
 }

java/com/google/gerrit/index/query/QueryProcessor.java

@@ -172,7 +172,7 @@ public abstract class QueryProcessor<T> {
    * @param query the query.
    * @return results of the query.
    */
-  public QueryResult<T> query(Predicate<T> query) throws StorageException, QueryParseException {
+  public QueryResult<T> query(Predicate<T> query) throws QueryParseException {
     return query(ImmutableList.of(query)).get(0);
   }
 
@@ -187,8 +187,7 @@ public abstract class QueryProcessor<T> {
    * @return results of the queries, one QueryResult per input query, in the same order as the
    *     input.
    */
-  public List<QueryResult<T>> query(List<Predicate<T>> queries)
-      throws StorageException, QueryParseException {
+  public List<QueryResult<T>> query(List<Predicate<T>> queries) throws QueryParseException {
     try {
       return query(null, queries);
     } catch (StorageException e) {
@@ -200,8 +199,7 @@ public abstract class QueryProcessor<T> {
   }
 
   private List<QueryResult<T>> query(
-      @Nullable List<String> queryStrings, List<Predicate<T>> queries)
-      throws StorageException, QueryParseException {
+      @Nullable List<String> queryStrings, List<Predicate<T>> queries) throws QueryParseException {
     long startNanos = System.nanoTime();
     checkState(!used.getAndSet(true), "%s has already been used", getClass().getSimpleName());
     int cnt = queries.size();

java/com/google/gerrit/lucene/AbstractLuceneIndex.java

@@ -486,16 +486,16 @@ public abstract class AbstractLuceneIndex<K, V> implements Index<K, V> {
     }
 
     @Override
-    public ResultSet<V> read() throws StorageException {
+    public ResultSet<V> read() {
       return readImpl(AbstractLuceneIndex.this::fromDocument);
     }
 
     @Override
-    public ResultSet<FieldBundle> readRaw() throws StorageException {
+    public ResultSet<FieldBundle> readRaw() {
       return readImpl(AbstractLuceneIndex.this::toFieldBundle);
     }
 
-    private <T> ResultSet<T> readImpl(Function<Document, T> mapper) throws StorageException {
+    private <T> ResultSet<T> readImpl(Function<Document, T> mapper) {
       IndexSearcher searcher = null;
       try {
         searcher = acquire();

java/com/google/gerrit/lucene/LuceneChangeIndex.java

@@ -302,7 +302,7 @@ public class LuceneChangeIndex implements ChangeIndex {
     }
 
     @Override
-    public ResultSet<ChangeData> read() throws StorageException {
+    public ResultSet<ChangeData> read() {
       if (Thread.interrupted()) {
         Thread.currentThread().interrupt();
         throw new StorageException("interrupted");
@@ -326,7 +326,7 @@ public class LuceneChangeIndex implements ChangeIndex {
     }
 
     @Override
-    public ResultSet<FieldBundle> readRaw() throws StorageException {
+    public ResultSet<FieldBundle> readRaw() {
       List<Document> documents;
       try {
         documents = doRead(IndexUtils.changeFields(opts));

java/com/google/gerrit/pgm/init/BaseInit.java

@@ -22,7 +22,6 @@ import com.google.common.base.Strings;
 import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.Die;
 import com.google.gerrit.common.IoUtil;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.metrics.DisabledMetricMaker;
 import com.google.gerrit.metrics.MetricMaker;
 import com.google.gerrit.pgm.init.api.ConsoleUI;
@@ -350,7 +349,7 @@ public class BaseInit extends SiteProgram {
       this.repositoryManager = repositoryManager;
     }
 
-    void upgradeSchema() throws StorageException {
+    void upgradeSchema() {
       noteDbSchemaUpdater.update(new UpdateUIImpl(ui));
     }
 

java/com/google/gerrit/pgm/init/ExternalIdsOnInit.java

@@ -14,7 +14,6 @@
 
 package com.google.gerrit.pgm.init;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.pgm.init.api.AllUsersNameOnInitProvider;
 import com.google.gerrit.pgm.init.api.InitFlags;
 import com.google.gerrit.server.GerritPersonIdentProvider;
@@ -49,7 +48,7 @@ public class ExternalIdsOnInit {
   }
 
   public synchronized void insert(String commitMessage, Collection<ExternalId> extIds)
-      throws StorageException, IOException, ConfigInvalidException {
+      throws IOException, ConfigInvalidException {
     File path = getPath();
     if (path != null) {
       try (Repository allUsersRepo = new FileRepository(path)) {

java/com/google/gerrit/pgm/init/api/SequencesOnInit.java

@@ -14,7 +14,6 @@
 
 package com.google.gerrit.pgm.init.api;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.extensions.events.GitReferenceUpdated;
 import com.google.gerrit.server.git.GitRepositoryManager;
@@ -34,7 +33,7 @@ public class SequencesOnInit {
     this.allUsersName = allUsersName;
   }
 
-  public int nextAccountId() throws StorageException {
+  public int nextAccountId() {
     RepoSequence accountSeq =
         new RepoSequence(
             repoManager,

java/com/google/gerrit/server/ApprovalCopier.java

@@ -73,8 +73,7 @@ public class ApprovalCopier {
   }
 
   Iterable<PatchSetApproval> getForPatchSet(
-      ChangeNotes notes, PatchSet.Id psId, @Nullable RevWalk rw, @Nullable Config repoConfig)
-      throws StorageException {
+      ChangeNotes notes, PatchSet.Id psId, @Nullable RevWalk rw, @Nullable Config repoConfig) {
     return getForPatchSet(notes, psId, rw, repoConfig, Collections.emptyList());
   }
 
@@ -83,8 +82,7 @@ public class ApprovalCopier {
       PatchSet.Id psId,
       @Nullable RevWalk rw,
       @Nullable Config repoConfig,
-      Iterable<PatchSetApproval> dontCopy)
-      throws StorageException {
+      Iterable<PatchSetApproval> dontCopy) {
     PatchSet ps = psUtil.get(notes, psId);
     if (ps == null) {
       return Collections.emptyList();
@@ -97,8 +95,7 @@ public class ApprovalCopier {
       PatchSet ps,
       @Nullable RevWalk rw,
       @Nullable Config repoConfig,
-      Iterable<PatchSetApproval> dontCopy)
-      throws StorageException {
+      Iterable<PatchSetApproval> dontCopy) {
     requireNonNull(ps, "ps should not be null");
     ChangeData cd = changeDataFactory.create(notes);
     try {
@@ -157,7 +154,7 @@ public class ApprovalCopier {
     }
   }
 
-  private static TreeMap<Integer, PatchSet> getPatchSets(ChangeData cd) throws StorageException {
+  private static TreeMap<Integer, PatchSet> getPatchSets(ChangeData cd) {
     Collection<PatchSet> patchSets = cd.patchSets();
     TreeMap<Integer, PatchSet> result = new TreeMap<>();
     for (PatchSet ps : patchSets) {

java/com/google/gerrit/server/ApprovalsUtil.java

@@ -112,9 +112,8 @@ public class ApprovalsUtil {
    *
    * @param notes change notes.
    * @return reviewers for the change.
-   * @throws StorageException if reviewers for the change could not be read.
    */
-  public ReviewerSet getReviewers(ChangeNotes notes) throws StorageException {
+  public ReviewerSet getReviewers(ChangeNotes notes) {
     return notes.load().getReviewers();
   }
 
@@ -123,10 +122,8 @@ public class ApprovalsUtil {
    *
    * @param allApprovals all approvals to consider; must all belong to the same change.
    * @return reviewers for the change.
-   * @throws StorageException if reviewers for the change could not be read.
    */
-  public ReviewerSet getReviewers(ChangeNotes notes, Iterable<PatchSetApproval> allApprovals)
-      throws StorageException {
+  public ReviewerSet getReviewers(ChangeNotes notes, Iterable<PatchSetApproval> allApprovals) {
     return notes.load().getReviewers();
   }
 
@@ -135,9 +132,8 @@ public class ApprovalsUtil {
    *
    * @param notes change notes.
    * @return reviewer updates for the change.
-   * @throws StorageException if reviewer updates for the change could not be read.
    */
-  public List<ReviewerStatusUpdate> getReviewerUpdates(ChangeNotes notes) throws StorageException {
+  public List<ReviewerStatusUpdate> getReviewerUpdates(ChangeNotes notes) {
     return notes.load().getReviewerUpdates();
   }
 
@@ -165,8 +161,7 @@ public class ApprovalsUtil {
       ChangeUpdate update,
       LabelTypes labelTypes,
       Change change,
-      Iterable<Account.Id> wantReviewers)
-      throws StorageException {
+      Iterable<Account.Id> wantReviewers) {
     PatchSet.Id psId = change.currentPatchSetId();
     Collection<Account.Id> existingReviewers;
     existingReviewers = notes.load().getReviewers().byState(REVIEWER);
@@ -245,11 +240,9 @@ public class ApprovalsUtil {
    * @param update change update.
    * @param wantCCs accounts to CC.
    * @return whether a change was made.
-   * @throws StorageException
    */
   public Collection<Account.Id> addCcs(
-      ChangeNotes notes, ChangeUpdate update, Collection<Account.Id> wantCCs)
-      throws StorageException {
+      ChangeNotes notes, ChangeUpdate update, Collection<Account.Id> wantCCs) {
     return addCcs(update, wantCCs, notes.load().getReviewers());
   }
 
@@ -273,7 +266,6 @@ public class ApprovalsUtil {
    * @param user user adding approvals.
    * @param approvals approvals to add.
    * @throws RestApiException
-   * @throws StorageException
    */
   public Iterable<PatchSetApproval> addApprovalsForNewPatchSet(
       ChangeUpdate update,
@@ -281,7 +273,7 @@ public class ApprovalsUtil {
       PatchSet ps,
       CurrentUser user,
       Map<String, Short> approvals)
-      throws RestApiException, StorageException, PermissionBackendException {
+      throws RestApiException, PermissionBackendException {
     Account.Id accountId = user.getAccountId();
     checkArgument(
         accountId.equals(ps.getUploader()),
@@ -331,14 +323,12 @@ public class ApprovalsUtil {
     }
   }
 
-  public ListMultimap<PatchSet.Id, PatchSetApproval> byChange(ChangeNotes notes)
-      throws StorageException {
+  public ListMultimap<PatchSet.Id, PatchSetApproval> byChange(ChangeNotes notes) {
     return notes.load().getApprovals();
   }
 
   public Iterable<PatchSetApproval> byPatchSet(
-      ChangeNotes notes, PatchSet.Id psId, @Nullable RevWalk rw, @Nullable Config repoConfig)
-      throws StorageException {
+      ChangeNotes notes, PatchSet.Id psId, @Nullable RevWalk rw, @Nullable Config repoConfig) {
     return copier.getForPatchSet(notes, psId, rw, repoConfig);
   }
 
@@ -347,8 +337,7 @@ public class ApprovalsUtil {
       PatchSet.Id psId,
       Account.Id accountId,
       @Nullable RevWalk rw,
-      @Nullable Config repoConfig)
-      throws StorageException {
+      @Nullable Config repoConfig) {
     return filterApprovals(byPatchSet(notes, psId, rw, repoConfig), accountId);
   }
 

java/com/google/gerrit/server/ChangeMessagesUtil.java

@@ -18,7 +18,6 @@ import static com.google.common.base.Preconditions.checkState;
 import static java.util.Objects.requireNonNull;
 
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.common.ChangeMessageInfo;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.reviewdb.client.ChangeMessage;
@@ -87,7 +86,7 @@ public class ChangeMessagesUtil {
     return workInProgress ? TAG_UPLOADED_WIP_PATCH_SET : TAG_UPLOADED_PATCH_SET;
   }
 
-  public List<ChangeMessage> byChange(ChangeNotes notes) throws StorageException {
+  public List<ChangeMessage> byChange(ChangeNotes notes) {
     return notes.load().getChangeMessages();
   }
 

java/com/google/gerrit/server/CommentsUtil.java

@@ -124,7 +124,7 @@ public class CommentsUtil {
       String message,
       @Nullable Boolean unresolved,
       @Nullable String parentUuid)
-      throws StorageException, UnprocessableEntityException {
+      throws UnprocessableEntityException {
     if (unresolved == null) {
       if (parentUuid == null) {
         // Default to false if comment is not descended from another.
@@ -175,29 +175,27 @@ public class CommentsUtil {
     return c;
   }
 
-  public Optional<Comment> getPublished(ChangeNotes notes, Comment.Key key)
-      throws StorageException {
+  public Optional<Comment> getPublished(ChangeNotes notes, Comment.Key key) {
     return publishedByChange(notes).stream().filter(c -> key.equals(c.key)).findFirst();
   }
 
-  public Optional<Comment> getDraft(ChangeNotes notes, IdentifiedUser user, Comment.Key key)
-      throws StorageException {
+  public Optional<Comment> getDraft(ChangeNotes notes, IdentifiedUser user, Comment.Key key) {
     return draftByChangeAuthor(notes, user.getAccountId()).stream()
         .filter(c -> key.equals(c.key))
         .findFirst();
   }
 
-  public List<Comment> publishedByChange(ChangeNotes notes) throws StorageException {
+  public List<Comment> publishedByChange(ChangeNotes notes) {
     notes.load();
     return sort(Lists.newArrayList(notes.getComments().values()));
   }
 
-  public List<RobotComment> robotCommentsByChange(ChangeNotes notes) throws StorageException {
+  public List<RobotComment> robotCommentsByChange(ChangeNotes notes) {
     notes.load();
     return sort(Lists.newArrayList(notes.getRobotComments().values()));
   }
 
-  public List<Comment> draftByChange(ChangeNotes notes) throws StorageException {
+  public List<Comment> draftByChange(ChangeNotes notes) {
     List<Comment> comments = new ArrayList<>();
     for (Ref ref : getDraftRefs(notes.getChangeId())) {
       Account.Id account = Account.Id.fromRefSuffix(ref.getName());
@@ -208,7 +206,7 @@ public class CommentsUtil {
     return sort(comments);
   }
 
-  public List<Comment> byPatchSet(ChangeNotes notes, PatchSet.Id psId) throws StorageException {
+  public List<Comment> byPatchSet(ChangeNotes notes, PatchSet.Id psId) {
     List<Comment> comments = new ArrayList<>();
     comments.addAll(publishedByPatchSet(notes, psId));
 
@@ -221,19 +219,16 @@ public class CommentsUtil {
     return sort(comments);
   }
 
-  public List<Comment> publishedByChangeFile(ChangeNotes notes, String file)
-      throws StorageException {
+  public List<Comment> publishedByChangeFile(ChangeNotes notes, String file) {
     return commentsOnFile(notes.load().getComments().values(), file);
   }
 
-  public List<Comment> publishedByPatchSet(ChangeNotes notes, PatchSet.Id psId)
-      throws StorageException {
+  public List<Comment> publishedByPatchSet(ChangeNotes notes, PatchSet.Id psId) {
     return removeCommentsOnAncestorOfCommitMessage(
         commentsOnPatchSet(notes.load().getComments().values(), psId));
   }
 
-  public List<RobotComment> robotCommentsByPatchSet(ChangeNotes notes, PatchSet.Id psId)
-      throws StorageException {
+  public List<RobotComment> robotCommentsByPatchSet(ChangeNotes notes, PatchSet.Id psId) {
     return commentsOnPatchSet(notes.load().getRobotComments().values(), psId);
   }
 
@@ -250,18 +245,16 @@ public class CommentsUtil {
         .collect(toList());
   }
 
-  public List<Comment> draftByPatchSetAuthor(PatchSet.Id psId, Account.Id author, ChangeNotes notes)
-      throws StorageException {
+  public List<Comment> draftByPatchSetAuthor(
+      PatchSet.Id psId, Account.Id author, ChangeNotes notes) {
     return commentsOnPatchSet(notes.load().getDraftComments(author).values(), psId);
   }
 
-  public List<Comment> draftByChangeFileAuthor(ChangeNotes notes, String file, Account.Id author)
-      throws StorageException {
+  public List<Comment> draftByChangeFileAuthor(ChangeNotes notes, String file, Account.Id author) {
     return commentsOnFile(notes.load().getDraftComments(author).values(), file);
   }
 
-  public List<Comment> draftByChangeAuthor(ChangeNotes notes, Account.Id author)
-      throws StorageException {
+  public List<Comment> draftByChangeAuthor(ChangeNotes notes, Account.Id author) {
     List<Comment> comments = new ArrayList<>();
     comments.addAll(notes.getDraftComments(author).values());
     return sort(comments);
@@ -345,7 +338,7 @@ public class CommentsUtil {
    * @param changeId change ID.
    * @return raw refs from All-Users repo.
    */
-  public Collection<Ref> getDraftRefs(Change.Id changeId) throws StorageException {
+  public Collection<Ref> getDraftRefs(Change.Id changeId) {
     try (Repository repo = repoManager.openRepository(allUsers)) {
       return getDraftRefs(repo, changeId);
     } catch (IOException e) {

java/com/google/gerrit/server/PatchSetUtil.java

@@ -22,7 +22,6 @@ import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Maps;
 import com.google.gerrit.common.data.LabelFunction;
 import com.google.gerrit.common.data.LabelType;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.PatchSet;
@@ -63,25 +62,24 @@ public class PatchSetUtil {
     this.repoManager = repoManager;
   }
 
-  public PatchSet current(ChangeNotes notes) throws StorageException {
+  public PatchSet current(ChangeNotes notes) {
     return get(notes, notes.getChange().currentPatchSetId());
   }
 
-  public PatchSet get(ChangeNotes notes, PatchSet.Id psId) throws StorageException {
+  public PatchSet get(ChangeNotes notes, PatchSet.Id psId) {
     return notes.load().getPatchSets().get(psId);
   }
 
-  public ImmutableCollection<PatchSet> byChange(ChangeNotes notes) throws StorageException {
+  public ImmutableCollection<PatchSet> byChange(ChangeNotes notes) {
     return notes.load().getPatchSets().values();
   }
 
-  public ImmutableMap<PatchSet.Id, PatchSet> byChangeAsMap(ChangeNotes notes)
-      throws StorageException {
+  public ImmutableMap<PatchSet.Id, PatchSet> byChangeAsMap(ChangeNotes notes) {
     return notes.load().getPatchSets();
   }
 
   public ImmutableMap<PatchSet.Id, PatchSet> getAsMap(
-      ChangeNotes notes, Set<PatchSet.Id> patchSetIds) throws StorageException {
+      ChangeNotes notes, Set<PatchSet.Id> patchSetIds) {
     return ImmutableMap.copyOf(Maps.filterKeys(notes.load().getPatchSets(), patchSetIds::contains));
   }
 
@@ -136,7 +134,7 @@ public class PatchSetUtil {
 
   /** Check if the current patch set of the change is locked. */
   public void checkPatchSetNotLocked(ChangeNotes notes)
-      throws StorageException, IOException, ResourceConflictException {
+      throws IOException, ResourceConflictException {
     if (isPatchSetLocked(notes)) {
       throw new ResourceConflictException(
           String.format("The current patch set of change %s is locked", notes.getChangeId()));
@@ -144,7 +142,7 @@ public class PatchSetUtil {
   }
 
   /** Is the current patch set locked against state changes? */
-  public boolean isPatchSetLocked(ChangeNotes notes) throws StorageException, IOException {
+  public boolean isPatchSetLocked(ChangeNotes notes) throws IOException {
     Change change = notes.getChange();
     if (change.isMerged()) {
       return false;

java/com/google/gerrit/server/PublishCommentUtil.java

@@ -46,8 +46,7 @@ public class PublishCommentUtil {
   }
 
   public void publish(
-      ChangeContext ctx, PatchSet.Id psId, Collection<Comment> drafts, @Nullable String tag)
-      throws StorageException {
+      ChangeContext ctx, PatchSet.Id psId, Collection<Comment> drafts, @Nullable String tag) {
     ChangeNotes notes = ctx.getNotes();
     checkArgument(notes != null);
     if (drafts.isEmpty()) {

java/com/google/gerrit/server/StarredChangesUtil.java

@@ -186,8 +186,7 @@ public class StarredChangesUtil {
     this.queryProvider = queryProvider;
   }
 
-  public ImmutableSortedSet<String> getLabels(Account.Id accountId, Change.Id changeId)
-      throws StorageException {
+  public ImmutableSortedSet<String> getLabels(Account.Id accountId, Change.Id changeId) {
     try (Repository repo = repoManager.openRepository(allUsers)) {
       return readLabels(repo, RefNames.refsStarredChanges(changeId, accountId)).labels();
     } catch (IOException e) {
@@ -205,7 +204,7 @@ public class StarredChangesUtil {
       Change.Id changeId,
       Set<String> labelsToAdd,
       Set<String> labelsToRemove)
-      throws StorageException, IllegalLabelException {
+      throws IllegalLabelException {
     try (Repository repo = repoManager.openRepository(allUsers)) {
       String refName = RefNames.refsStarredChanges(changeId, accountId);
       StarRef old = readLabels(repo, refName);
@@ -234,7 +233,7 @@ public class StarredChangesUtil {
     }
   }
 
-  public void unstarAll(Project.NameKey project, Change.Id changeId) throws StorageException {
+  public void unstarAll(Project.NameKey project, Change.Id changeId) {
     try (Repository repo = repoManager.openRepository(allUsers);
         RevWalk rw = new RevWalk(repo)) {
       BatchRefUpdate batchUpdate = repo.getRefDatabase().newBatchUpdate();
@@ -261,7 +260,7 @@ public class StarredChangesUtil {
     }
   }
 
-  public ImmutableMap<Account.Id, StarRef> byChange(Change.Id changeId) throws StorageException {
+  public ImmutableMap<Account.Id, StarRef> byChange(Change.Id changeId) {
     try (Repository repo = repoManager.openRepository(allUsers)) {
       ImmutableMap.Builder<Account.Id, StarRef> builder = ImmutableMap.builder();
       for (String refPart : getRefNames(repo, RefNames.refsStarredChangesPrefix(changeId))) {
@@ -279,8 +278,7 @@ public class StarredChangesUtil {
     }
   }
 
-  public ImmutableListMultimap<Account.Id, String> byChangeFromIndex(Change.Id changeId)
-      throws StorageException {
+  public ImmutableListMultimap<Account.Id, String> byChangeFromIndex(Change.Id changeId) {
     List<ChangeData> changeData =
         queryProvider
             .get()
@@ -311,7 +309,7 @@ public class StarredChangesUtil {
     }
   }
 
-  public void ignore(ChangeResource rsrc) throws StorageException, IllegalLabelException {
+  public void ignore(ChangeResource rsrc) throws IllegalLabelException {
     star(
         rsrc.getUser().asIdentifiedUser().getAccountId(),
         rsrc.getProject(),
@@ -320,7 +318,7 @@ public class StarredChangesUtil {
         ImmutableSet.of());
   }
 
-  public void unignore(ChangeResource rsrc) throws StorageException, IllegalLabelException {
+  public void unignore(ChangeResource rsrc) throws IllegalLabelException {
     star(
         rsrc.getUser().asIdentifiedUser().getAccountId(),
         rsrc.getProject(),
@@ -329,11 +327,11 @@ public class StarredChangesUtil {
         ImmutableSet.of(IGNORE_LABEL));
   }
 
-  public boolean isIgnoredBy(Change.Id changeId, Account.Id accountId) throws StorageException {
+  public boolean isIgnoredBy(Change.Id changeId, Account.Id accountId) {
     return getLabels(accountId, changeId).contains(IGNORE_LABEL);
   }
 
-  public boolean isIgnored(ChangeResource rsrc) throws StorageException {
+  public boolean isIgnored(ChangeResource rsrc) {
     return isIgnoredBy(rsrc.getChange().getId(), rsrc.getUser().asIdentifiedUser().getAccountId());
   }
 
@@ -353,7 +351,7 @@ public class StarredChangesUtil {
     return UNREVIEWED_LABEL + "/" + ps;
   }
 
-  public void markAsReviewed(ChangeResource rsrc) throws StorageException, IllegalLabelException {
+  public void markAsReviewed(ChangeResource rsrc) throws IllegalLabelException {
     star(
         rsrc.getUser().asIdentifiedUser().getAccountId(),
         rsrc.getProject(),
@@ -362,7 +360,7 @@ public class StarredChangesUtil {
         ImmutableSet.of(getUnreviewedLabel(rsrc.getChange())));
   }
 
-  public void markAsUnreviewed(ChangeResource rsrc) throws StorageException, IllegalLabelException {
+  public void markAsUnreviewed(ChangeResource rsrc) throws IllegalLabelException {
     star(
         rsrc.getUser().asIdentifiedUser().getAccountId(),
         rsrc.getProject(),
@@ -444,7 +442,7 @@ public class StarredChangesUtil {
 
   private void updateLabels(
       Repository repo, String refName, ObjectId oldObjectId, Collection<String> labels)
-      throws IOException, StorageException, InvalidLabelsException {
+      throws IOException, InvalidLabelsException {
     try (TraceTimer traceTimer =
             TraceContext.newTimer("Update star labels in %s (labels=%s)", refName, labels);
         RevWalk rw = new RevWalk(repo)) {
@@ -477,8 +475,7 @@ public class StarredChangesUtil {
     }
   }
 
-  private void deleteRef(Repository repo, String refName, ObjectId oldObjectId)
-      throws IOException, StorageException {
+  private void deleteRef(Repository repo, String refName, ObjectId oldObjectId) throws IOException {
     if (ObjectId.zeroId().equals(oldObjectId)) {
       // ref doesn't exist
       return;

java/com/google/gerrit/server/account/AccountManager.java

@@ -214,7 +214,7 @@ public class AccountManager {
   }
 
   private void update(AuthRequest who, ExternalId extId)
-      throws StorageException, IOException, ConfigInvalidException, AccountException {
+      throws IOException, ConfigInvalidException, AccountException {
     IdentifiedUser user = userFactory.create(extId.accountId());
     List<Consumer<InternalAccountUpdate.Builder>> accountUpdates = new ArrayList<>();
 
@@ -271,7 +271,7 @@ public class AccountManager {
   }
 
   private AuthResult create(AuthRequest who)
-      throws StorageException, AccountException, IOException, ConfigInvalidException {
+      throws AccountException, IOException, ConfigInvalidException {
     Account.Id newId = new Account.Id(sequences.nextAccountId());
     logger.atFine().log("Assigning new Id %s to account", newId);
 
@@ -375,7 +375,7 @@ public class AccountManager {
   }
 
   private void addGroupMember(AccountGroup.UUID groupUuid, IdentifiedUser user)
-      throws StorageException, IOException, ConfigInvalidException, AccountException {
+      throws IOException, ConfigInvalidException, AccountException {
     // The user initiated this request by logging in. -> Attribute all modifications to that user.
     GroupsUpdate groupsUpdate = groupsUpdateFactory.create(user);
     InternalGroupUpdate groupUpdate =
@@ -400,7 +400,7 @@ public class AccountManager {
    *     this time.
    */
   public AuthResult link(Account.Id to, AuthRequest who)
-      throws AccountException, StorageException, IOException, ConfigInvalidException {
+      throws AccountException, IOException, ConfigInvalidException {
     Optional<ExternalId> optionalExtId = externalIds.get(who.getExternalIdKey());
     if (optionalExtId.isPresent()) {
       ExternalId extId = optionalExtId.get();
@@ -437,12 +437,11 @@ public class AccountManager {
    * @param to account to link the identity onto.
    * @param who the additional identity.
    * @return the result of linking the identity to the user.
-   * @throws StorageException
    * @throws AccountException the identity belongs to a different account, or it cannot be linked at
    *     this time.
    */
   public AuthResult updateLink(Account.Id to, AuthRequest who)
-      throws StorageException, AccountException, IOException, ConfigInvalidException {
+      throws AccountException, IOException, ConfigInvalidException {
     accountsUpdateProvider
         .get()
         .update(
@@ -474,7 +473,7 @@ public class AccountManager {
    *     found
    */
   public void unlink(Account.Id from, ExternalId.Key extIdKey)
-      throws AccountException, StorageException, IOException, ConfigInvalidException {
+      throws AccountException, IOException, ConfigInvalidException {
     unlink(from, ImmutableList.of(extIdKey));
   }
 
@@ -487,7 +486,7 @@ public class AccountManager {
    *     identity was not found
    */
   public void unlink(Account.Id from, Collection<ExternalId.Key> extIdKeys)
-      throws AccountException, StorageException, IOException, ConfigInvalidException {
+      throws AccountException, IOException, ConfigInvalidException {
     if (extIdKeys.isEmpty()) {
       return;
     }

java/com/google/gerrit/server/account/AccountResolver.java

@@ -26,7 +26,6 @@ import com.google.common.base.Suppliers;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Streams;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
 import com.google.gerrit.index.Schema;
 import com.google.gerrit.reviewdb.client.Account;
@@ -216,15 +215,14 @@ public class AccountResolver {
       return false;
     }
 
-    Optional<I> tryParse(String input) throws IOException, StorageException;
+    Optional<I> tryParse(String input) throws IOException;
 
-    Stream<AccountState> search(I input)
-        throws StorageException, IOException, ConfigInvalidException;
+    Stream<AccountState> search(I input) throws IOException, ConfigInvalidException;
 
     boolean shortCircuitIfNoResults();
 
     default Optional<Stream<AccountState>> trySearch(String input)
-        throws StorageException, IOException, ConfigInvalidException {
+        throws IOException, ConfigInvalidException {
       Optional<I> parsed = tryParse(input);
       return parsed.isPresent() ? Optional.of(search(parsed.get())) : Optional.empty();
     }
@@ -336,7 +334,7 @@ public class AccountResolver {
     }
 
     @Override
-    public Stream<AccountState> search(String nameOrEmail) throws StorageException, IOException {
+    public Stream<AccountState> search(String nameOrEmail) throws IOException {
       // TODO(dborowitz): This would probably work as a Searcher<Address>
       int lt = nameOrEmail.indexOf('<');
       int gt = nameOrEmail.indexOf('>');
@@ -369,7 +367,7 @@ public class AccountResolver {
     }
 
     @Override
-    public Stream<AccountState> search(String input) throws StorageException, IOException {
+    public Stream<AccountState> search(String input) throws IOException {
       return toAccountStates(emails.getAccountFor(input));
     }
 
@@ -398,7 +396,7 @@ public class AccountResolver {
     }
 
     @Override
-    public Optional<AccountState> tryParse(String input) throws StorageException {
+    public Optional<AccountState> tryParse(String input) {
       List<AccountState> results =
           accountQueryProvider.get().enforceVisibility(true).byFullName(input);
       return results.size() == 1 ? Optional.of(results.get(0)) : Optional.empty();
@@ -427,7 +425,7 @@ public class AccountResolver {
     }
 
     @Override
-    public Stream<AccountState> search(String input) throws StorageException {
+    public Stream<AccountState> search(String input) {
       // At this point we have no clue. Just perform a whole bunch of suggestions and pray we come
       // up with a reasonable result list.
       // TODO(dborowitz): This doesn't match the documentation; consider whether it's possible to be
@@ -514,11 +512,10 @@ public class AccountResolver {
    *
    * @param input input string.
    * @return a result describing matching accounts. Never null even if the result set is empty.
-   * @throws StorageException if an error occurs.
    * @throws ConfigInvalidException if an error occurs.
    * @throws IOException if an error occurs.
    */
-  public Result resolve(String input) throws StorageException, ConfigInvalidException, IOException {
+  public Result resolve(String input) throws ConfigInvalidException, IOException {
     return searchImpl(input, searchers, visibilitySupplier());
   }
 
@@ -540,15 +537,13 @@ public class AccountResolver {
    *
    * @param input input string.
    * @return a result describing matching accounts. Never null even if the result set is empty.
-   * @throws StorageException if an error occurs.
    * @throws ConfigInvalidException if an error occurs.
    * @throws IOException if an error occurs.
    * @deprecated for use only by MailUtil for parsing commit footers; that class needs to be
    *     reevaluated.
    */
   @Deprecated
-  public Result resolveByNameOrEmail(String input)
-      throws StorageException, ConfigInvalidException, IOException {
+  public Result resolveByNameOrEmail(String input) throws ConfigInvalidException, IOException {
     return searchImpl(input, nameOrEmailSearchers, visibilitySupplier());
   }
 
@@ -561,7 +556,7 @@ public class AccountResolver {
       String input,
       ImmutableList<Searcher<?>> searchers,
       Supplier<Predicate<AccountState>> visibilitySupplier)
-      throws StorageException, ConfigInvalidException, IOException {
+      throws ConfigInvalidException, IOException {
     visibilitySupplier = Suppliers.memoize(visibilitySupplier::get);
     List<AccountState> inactive = new ArrayList<>();
 

java/com/google/gerrit/server/account/AccountsUpdate.java

@@ -295,12 +295,11 @@ public class AccountsUpdate {
    * @return the newly created account
    * @throws DuplicateKeyException if the account already exists
    * @throws IOException if creating the user branch fails due to an IO error
-   * @throws StorageException if creating the user branch fails
    * @throws ConfigInvalidException if any of the account fields has an invalid value
    */
   public AccountState insert(
       String message, Account.Id accountId, Consumer<InternalAccountUpdate.Builder> init)
-      throws StorageException, IOException, ConfigInvalidException {
+      throws IOException, ConfigInvalidException {
     return insert(message, accountId, AccountUpdater.fromConsumer(init));
   }
 
@@ -313,11 +312,10 @@ public class AccountsUpdate {
    * @return the newly created account
    * @throws DuplicateKeyException if the account already exists
    * @throws IOException if creating the user branch fails due to an IO error
-   * @throws StorageException if creating the user branch fails
    * @throws ConfigInvalidException if any of the account fields has an invalid value
    */
   public AccountState insert(String message, Account.Id accountId, AccountUpdater updater)
-      throws StorageException, IOException, ConfigInvalidException {
+      throws IOException, ConfigInvalidException {
     return updateAccount(
             r -> {
               AccountConfig accountConfig = read(r, accountId);
@@ -351,12 +349,11 @@ public class AccountsUpdate {
    * @throws IOException if updating the user branch fails due to an IO error
    * @throws LockFailureException if updating the user branch still fails due to concurrent updates
    *     after the retry timeout exceeded
-   * @throws StorageException if updating the user branch fails
    * @throws ConfigInvalidException if any of the account fields has an invalid value
    */
   public Optional<AccountState> update(
       String message, Account.Id accountId, Consumer<InternalAccountUpdate.Builder> update)
-      throws StorageException, LockFailureException, IOException, ConfigInvalidException {
+      throws LockFailureException, IOException, ConfigInvalidException {
     return update(message, accountId, AccountUpdater.fromConsumer(update));
   }
 
@@ -372,11 +369,10 @@ public class AccountsUpdate {
    * @throws IOException if updating the user branch fails due to an IO error
    * @throws LockFailureException if updating the user branch still fails due to concurrent updates
    *     after the retry timeout exceeded
-   * @throws StorageException if updating the user branch fails
    * @throws ConfigInvalidException if any of the account fields has an invalid value
    */
   public Optional<AccountState> update(String message, Account.Id accountId, AccountUpdater updater)
-      throws StorageException, LockFailureException, IOException, ConfigInvalidException {
+      throws LockFailureException, IOException, ConfigInvalidException {
     return updateAccount(
         r -> {
           AccountConfig accountConfig = read(r, accountId);
@@ -407,7 +403,7 @@ public class AccountsUpdate {
   }
 
   private Optional<AccountState> updateAccount(AccountUpdate accountUpdate)
-      throws IOException, ConfigInvalidException, StorageException {
+      throws IOException, ConfigInvalidException {
     return executeAccountUpdate(
         () -> {
           try (Repository allUsersRepo = repoManager.openRepository(allUsersName)) {
@@ -423,7 +419,7 @@ public class AccountsUpdate {
   }
 
   private Optional<AccountState> executeAccountUpdate(Action<Optional<AccountState>> action)
-      throws IOException, ConfigInvalidException, StorageException {
+      throws IOException, ConfigInvalidException {
     try {
       return retryHelper.execute(
           ActionType.ACCOUNT_UPDATE, action, LockFailureException.class::isInstance);
@@ -562,8 +558,7 @@ public class AccountsUpdate {
 
   @FunctionalInterface
   private static interface AccountUpdate {
-    UpdatedAccount update(Repository allUsersRepo)
-        throws IOException, ConfigInvalidException, StorageException;
+    UpdatedAccount update(Repository allUsersRepo) throws IOException, ConfigInvalidException;
   }
 
   private static class UpdatedAccount {

java/com/google/gerrit/server/account/Emails.java

@@ -69,7 +69,7 @@ public class Emails {
    *
    * @see #getAccountsFor(String...)
    */
-  public ImmutableSet<Account.Id> getAccountFor(String email) throws IOException, StorageException {
+  public ImmutableSet<Account.Id> getAccountFor(String email) throws IOException {
     return Streams.concat(
             externalIds.byEmail(email).stream().map(ExternalId::accountId),
             executeIndexQuery(() -> queryProvider.get().byPreferredEmail(email).stream())
@@ -83,7 +83,7 @@ public class Emails {
    * @see #getAccountFor(String)
    */
   public ImmutableSetMultimap<String, Account.Id> getAccountsFor(String... emails)
-      throws IOException, StorageException {
+      throws IOException {
     ImmutableSetMultimap.Builder<String, Account.Id> builder = ImmutableSetMultimap.builder();
     externalIds.byEmails(emails).entries().stream()
         .forEach(e -> builder.put(e.getKey(), e.getValue().accountId()));
@@ -102,7 +102,7 @@ public class Emails {
     return externalIds.byEmail(email).stream().map(ExternalId::accountId).collect(toImmutableSet());
   }
 
-  private <T> T executeIndexQuery(Action<T> action) throws StorageException {
+  private <T> T executeIndexQuery(Action<T> action) {
     try {
       return retryHelper.execute(
           ActionType.INDEX_QUERY, action, StorageException.class::isInstance);

java/com/google/gerrit/server/account/GroupIncludeCacheImpl.java

@@ -22,7 +22,6 @@ import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.flogger.FluentLogger;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.reviewdb.client.AccountGroup;
 import com.google.gerrit.server.cache.CacheModule;
@@ -152,7 +151,7 @@ public class GroupIncludeCacheImpl implements GroupIncludeCache {
     }
 
     @Override
-    public ImmutableSet<AccountGroup.UUID> load(Account.Id memberId) throws StorageException {
+    public ImmutableSet<AccountGroup.UUID> load(Account.Id memberId) {
       try (TraceTimer timer = TraceContext.newTimer("Loading groups with member %s", memberId)) {
         return groupQueryProvider.get().byMember(memberId).stream()
             .map(InternalGroup::getGroupUUID)
@@ -171,7 +170,7 @@ public class GroupIncludeCacheImpl implements GroupIncludeCache {
     }
 
     @Override
-    public ImmutableList<AccountGroup.UUID> load(AccountGroup.UUID key) throws StorageException {
+    public ImmutableList<AccountGroup.UUID> load(AccountGroup.UUID key) {
       try (TraceTimer timer = TraceContext.newTimer("Loading parent groups of %s", key)) {
         return groupQueryProvider.get().bySubgroup(key).stream()
             .map(InternalGroup::getGroupUUID)

java/com/google/gerrit/server/account/SetInactiveFlag.java

@@ -14,7 +14,6 @@
 
 package com.google.gerrit.server.account;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
 import com.google.gerrit.extensions.restapi.Response;
@@ -48,7 +47,7 @@ public class SetInactiveFlag {
   }
 
   public Response<?> deactivate(Account.Id accountId)
-      throws RestApiException, IOException, ConfigInvalidException, StorageException {
+      throws RestApiException, IOException, ConfigInvalidException {
     AtomicBoolean alreadyInactive = new AtomicBoolean(false);
     AtomicReference<Optional<RestApiException>> exception = new AtomicReference<>(Optional.empty());
     accountsUpdateProvider
@@ -81,7 +80,7 @@ public class SetInactiveFlag {
   }
 
   public Response<String> activate(Account.Id accountId)
-      throws RestApiException, IOException, ConfigInvalidException, StorageException {
+      throws RestApiException, IOException, ConfigInvalidException {
     AtomicBoolean alreadyActive = new AtomicBoolean(false);
     AtomicReference<Optional<RestApiException>> exception = new AtomicReference<>(Optional.empty());
     accountsUpdateProvider

java/com/google/gerrit/server/api/changes/ChangeEditApiImpl.java

@@ -16,7 +16,6 @@ package com.google.gerrit.server.api.changes;
 
 import static com.google.gerrit.server.api.ApiUtil.asRestApiException;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.ChangeEditApi;
 import com.google.gerrit.extensions.api.changes.PublishChangeEditInput;
 import com.google.gerrit.extensions.client.ChangeEditDetailOption;
@@ -242,7 +241,7 @@ public class ChangeEditApiImpl implements ChangeEditApi {
   }
 
   private ChangeEditResource getChangeEditResource(String filePath)
-      throws ResourceNotFoundException, AuthException, IOException, StorageException {
+      throws ResourceNotFoundException, AuthException, IOException {
     return changeEdits.parse(changeResource, IdString.fromDecoded(filePath));
   }
 }

java/com/google/gerrit/server/change/AbandonOp.java

@@ -17,7 +17,6 @@ package com.google.gerrit.server.change;
 import com.google.common.base.Strings;
 import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.ChangeMessage;
@@ -79,8 +78,7 @@ public class AbandonOp implements BatchUpdateOp {
   }
 
   @Override
-  public boolean updateChange(ChangeContext ctx)
-      throws StorageException, ResourceConflictException {
+  public boolean updateChange(ChangeContext ctx) throws ResourceConflictException {
     change = ctx.getChange();
     PatchSet.Id psId = change.currentPatchSetId();
     ChangeUpdate update = ctx.getUpdate(psId);
@@ -109,7 +107,7 @@ public class AbandonOp implements BatchUpdateOp {
   }
 
   @Override
-  public void postUpdate(Context ctx) throws StorageException {
+  public void postUpdate(Context ctx) {
     NotifyResolver.Result notify = ctx.getNotify(change.getId());
     try {
       ReplyToChangeSender cm = abandonedSenderFactory.create(ctx.getProject(), change.getId());

java/com/google/gerrit/server/change/AbandonUtil.java

@@ -103,7 +103,7 @@ public class AbandonUtil {
   }
 
   private Collection<ChangeData> getValidChanges(Collection<ChangeData> changes, String query)
-      throws StorageException, QueryParseException {
+      throws QueryParseException {
     Collection<ChangeData> validChanges = new ArrayList<>();
     for (ChangeData cd : changes) {
       String newQuery = query + " change:" + cd.getId();

java/com/google/gerrit/server/change/AccountPatchReviewStore.java

@@ -16,7 +16,6 @@ package com.google.gerrit.server.change;
 
 import com.google.auto.value.AutoValue;
 import com.google.common.collect.ImmutableSet;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.reviewdb.client.PatchSet;
 import java.util.Collection;
@@ -54,9 +53,8 @@ public interface AccountPatchReviewStore {
    * @param path file path
    * @return {@code true} if the reviewed flag was updated, {@code false} if the reviewed flag was
    *     already set
-   * @throws StorageException thrown if updating the reviewed flag failed
    */
-  boolean markReviewed(PatchSet.Id psId, Account.Id accountId, String path) throws StorageException;
+  boolean markReviewed(PatchSet.Id psId, Account.Id accountId, String path);
 
   /**
    * Marks the given files in the given patch set as reviewed by the given user.
@@ -64,10 +62,8 @@ public interface AccountPatchReviewStore {
    * @param psId patch set ID
    * @param accountId account ID of the user
    * @param paths file paths
-   * @throws StorageException thrown if updating the reviewed flag failed
    */
-  void markReviewed(PatchSet.Id psId, Account.Id accountId, Collection<String> paths)
-      throws StorageException;
+  void markReviewed(PatchSet.Id psId, Account.Id accountId, Collection<String> paths);
 
   /**
    * Clears the reviewed flag for the given file in the given patch set for the given user.
@@ -75,17 +71,15 @@ public interface AccountPatchReviewStore {
    * @param psId patch set ID
    * @param accountId account ID of the user
    * @param path file path
-   * @throws StorageException thrown if clearing the reviewed flag failed
    */
-  void clearReviewed(PatchSet.Id psId, Account.Id accountId, String path) throws StorageException;
+  void clearReviewed(PatchSet.Id psId, Account.Id accountId, String path);
 
   /**
    * Clears the reviewed flags for all files in the given patch set for all users.
    *
    * @param psId patch set ID
-   * @throws StorageException thrown if clearing the reviewed flags failed
    */
-  void clearReviewed(PatchSet.Id psId) throws StorageException;
+  void clearReviewed(PatchSet.Id psId);
 
   /**
    * Find the latest patch set, that is smaller or equals to the given patch set, where at least,
@@ -95,8 +89,6 @@ public interface AccountPatchReviewStore {
    * @param accountId account ID of the user
    * @return optionally, all files the have been reviewed by the given user that belong to the patch
    *     set that is smaller or equals to the given patch set
-   * @throws StorageException thrown if accessing the reviewed flags failed
    */
-  Optional<PatchSetWithReviewedFiles> findReviewed(PatchSet.Id psId, Account.Id accountId)
-      throws StorageException;
+  Optional<PatchSetWithReviewedFiles> findReviewed(PatchSet.Id psId, Account.Id accountId);
 }

java/com/google/gerrit/server/change/ActionJson.java

@@ -20,7 +20,6 @@ import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.ActionVisitor;
 import com.google.gerrit.extensions.common.ActionInfo;
 import com.google.gerrit.extensions.common.ChangeInfo;
@@ -70,7 +69,7 @@ public class ActionJson {
     this.userProvider = userProvider;
   }
 
-  public Map<String, ActionInfo> format(RevisionResource rsrc) throws StorageException {
+  public Map<String, ActionInfo> format(RevisionResource rsrc) {
     ChangeInfo changeInfo = null;
     RevisionInfo revisionInfo = null;
     List<ActionVisitor> visitors = visitors();
@@ -97,8 +96,7 @@ public class ActionJson {
   }
 
   public RevisionInfo addRevisionActions(
-      @Nullable ChangeInfo changeInfo, RevisionInfo to, RevisionResource rsrc)
-      throws StorageException {
+      @Nullable ChangeInfo changeInfo, RevisionInfo to, RevisionResource rsrc) {
     List<ActionVisitor> visitors = visitors();
     if (!visitors.isEmpty()) {
       if (changeInfo != null) {

java/com/google/gerrit/server/change/AddReviewersOp.java

@@ -27,7 +27,6 @@ import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Streams;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.client.ReviewerState;
 import com.google.gerrit.extensions.restapi.RestApiException;
 import com.google.gerrit.mail.Address;
@@ -157,8 +156,7 @@ public class AddReviewersOp implements BatchUpdateOp {
   }
 
   @Override
-  public boolean updateChange(ChangeContext ctx)
-      throws RestApiException, StorageException, IOException {
+  public boolean updateChange(ChangeContext ctx) throws RestApiException, IOException {
     change = ctx.getChange();
     if (!accountIds.isEmpty()) {
       if (state == CC) {

java/com/google/gerrit/server/change/ChangeFinder.java

@@ -106,7 +106,7 @@ public class ChangeFinder {
     this.allowedIdTypes = ImmutableSet.copyOf(configuredChangeIdTypes);
   }
 
-  public ChangeNotes findOne(String id) throws StorageException {
+  public ChangeNotes findOne(String id) {
     List<ChangeNotes> ctls = find(id);
     if (ctls.size() != 1) {
       return null;
@@ -119,9 +119,8 @@ public class ChangeFinder {
    *
    * @param id change identifier.
    * @return possibly-empty list of notes for all matching changes; may or may not be visible.
-   * @throws StorageException if an error occurred querying the database.
    */
-  public List<ChangeNotes> find(String id) throws StorageException {
+  public List<ChangeNotes> find(String id) {
     try {
       return find(id, false);
     } catch (DeprecatedIdentifierException e) {
@@ -137,11 +136,10 @@ public class ChangeFinder {
    * @param enforceDeprecation boolean to see if we should throw {@link
    *     DeprecatedIdentifierException} in case the identifier is deprecated
    * @return possibly-empty list of notes for all matching changes; may or may not be visible.
-   * @throws StorageException if an error occurred querying the database
    * @throws DeprecatedIdentifierException if the identifier is deprecated.
    */
   public List<ChangeNotes> find(String id, boolean enforceDeprecation)
-      throws StorageException, DeprecatedIdentifierException {
+      throws DeprecatedIdentifierException {
     if (id.isEmpty()) {
       return Collections.emptyList();
     }
@@ -194,8 +192,7 @@ public class ChangeFinder {
     return notes;
   }
 
-  private List<ChangeNotes> fromProjectNumber(String project, int changeNumber)
-      throws StorageException {
+  private List<ChangeNotes> fromProjectNumber(String project, int changeNumber) {
     Change.Id cId = new Change.Id(changeNumber);
     try {
       return ImmutableList.of(
@@ -212,7 +209,7 @@ public class ChangeFinder {
     }
   }
 
-  public ChangeNotes findOne(Change.Id id) throws StorageException {
+  public ChangeNotes findOne(Change.Id id) {
     List<ChangeNotes> notes = find(id);
     if (notes.size() != 1) {
       throw new NoSuchChangeException(id);
@@ -220,7 +217,7 @@ public class ChangeFinder {
     return notes.get(0);
   }
 
-  public List<ChangeNotes> find(Change.Id id) throws StorageException {
+  public List<ChangeNotes> find(Change.Id id) {
     String project = changeIdProjectCache.getIfPresent(id);
     if (project != null) {
       return fromProjectNumber(project, id.get());
@@ -236,7 +233,7 @@ public class ChangeFinder {
     return asChangeNotes(r);
   }
 
-  private List<ChangeNotes> asChangeNotes(List<ChangeData> cds) throws StorageException {
+  private List<ChangeNotes> asChangeNotes(List<ChangeData> cds) {
     List<ChangeNotes> notes = new ArrayList<>(cds.size());
     if (!indexConfig.separateChangeSubIndexes()) {
       for (ChangeData cd : cds) {

java/com/google/gerrit/server/change/ChangeInserter.java

@@ -30,7 +30,6 @@ import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.FooterConstants;
 import com.google.gerrit.common.data.LabelType;
 import com.google.gerrit.common.data.LabelTypes;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
 import com.google.gerrit.extensions.client.ReviewerState;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
@@ -369,8 +368,7 @@ public class ChangeInserter implements InsertChangeOp {
 
   @Override
   public boolean updateChange(ChangeContext ctx)
-      throws RestApiException, StorageException, IOException, PermissionBackendException,
-          ConfigInvalidException {
+      throws RestApiException, IOException, PermissionBackendException, ConfigInvalidException {
     change = ctx.getChange(); // Use defensive copy created by ChangeControl.
     patchSetInfo =
         patchSetInfoFactory.get(ctx.getRevWalk(), ctx.getRevWalk().parseCommit(commitId), psId);

java/com/google/gerrit/server/change/ChangeJson.java

@@ -268,23 +268,23 @@ public class ChangeJson {
     return this;
   }
 
-  public ChangeInfo format(ChangeResource rsrc) throws StorageException {
+  public ChangeInfo format(ChangeResource rsrc) {
     return format(changeDataFactory.create(rsrc.getNotes()));
   }
 
-  public ChangeInfo format(Change change) throws StorageException {
+  public ChangeInfo format(Change change) {
     return format(changeDataFactory.create(change));
   }
 
-  public ChangeInfo format(Project.NameKey project, Change.Id id) throws StorageException {
+  public ChangeInfo format(Project.NameKey project, Change.Id id) {
     return format(project, id, ChangeInfo::new);
   }
 
-  public ChangeInfo format(ChangeData cd) throws StorageException {
+  public ChangeInfo format(ChangeData cd) {
     return format(cd, Optional.empty(), true, ChangeInfo::new);
   }
 
-  public ChangeInfo format(RevisionResource rsrc) throws StorageException {
+  public ChangeInfo format(RevisionResource rsrc) {
     ChangeData cd = changeDataFactory.create(rsrc.getNotes());
     return format(cd, Optional.of(rsrc.getPatchSet().getId()), true, ChangeInfo::new);
   }
@@ -308,8 +308,7 @@ public class ChangeJson {
     }
   }
 
-  public List<ChangeInfo> format(Collection<ChangeData> in)
-      throws StorageException, PermissionBackendException {
+  public List<ChangeInfo> format(Collection<ChangeData> in) throws PermissionBackendException {
     accountLoader = accountLoaderFactory.create(has(DETAILED_ACCOUNTS));
     ensureLoaded(in);
     List<ChangeInfo> out = new ArrayList<>(in.size());
@@ -321,8 +320,7 @@ public class ChangeJson {
   }
 
   public <I extends ChangeInfo> I format(
-      Project.NameKey project, Change.Id id, Supplier<I> changeInfoSupplier)
-      throws StorageException {
+      Project.NameKey project, Change.Id id, Supplier<I> changeInfoSupplier) {
     ChangeNotes notes;
     try {
       notes = notesFactory.createChecked(project, id);
@@ -367,8 +365,7 @@ public class ChangeJson {
       ChangeData cd,
       Optional<PatchSet.Id> limitToPsId,
       boolean fillAccountLoader,
-      Supplier<I> changeInfoSupplier)
-      throws StorageException {
+      Supplier<I> changeInfoSupplier) {
     try {
       if (fillAccountLoader) {
         accountLoader = accountLoaderFactory.create(has(DETAILED_ACCOUNTS));
@@ -390,7 +387,7 @@ public class ChangeJson {
     }
   }
 
-  private void ensureLoaded(Iterable<ChangeData> all) throws StorageException {
+  private void ensureLoaded(Iterable<ChangeData> all) {
     if (lazyLoad) {
       ChangeData.ensureChangeLoaded(all);
       if (has(ALL_REVISIONS)) {
@@ -477,8 +474,7 @@ public class ChangeJson {
 
   private <I extends ChangeInfo> I toChangeInfo(
       ChangeData cd, Optional<PatchSet.Id> limitToPsId, Supplier<I> changeInfoSupplier)
-      throws PatchListNotAvailableException, GpgException, StorageException,
-          PermissionBackendException, IOException {
+      throws PatchListNotAvailableException, GpgException, PermissionBackendException, IOException {
     try (Timer0.Context ignored = metrics.toChangeInfoLatency.start()) {
       return toChangeInfoImpl(cd, limitToPsId, changeInfoSupplier);
     }
@@ -486,8 +482,7 @@ public class ChangeJson {
 
   private <I extends ChangeInfo> I toChangeInfoImpl(
       ChangeData cd, Optional<PatchSet.Id> limitToPsId, Supplier<I> changeInfoSupplier)
-      throws PatchListNotAvailableException, GpgException, StorageException,
-          PermissionBackendException, IOException {
+      throws PatchListNotAvailableException, GpgException, PermissionBackendException, IOException {
     I out = changeInfoSupplier.get();
     CurrentUser user = userProvider.get();
 
@@ -638,7 +633,7 @@ public class ChangeJson {
     return reviewerMap;
   }
 
-  private Collection<ReviewerUpdateInfo> reviewerUpdates(ChangeData cd) throws StorageException {
+  private Collection<ReviewerUpdateInfo> reviewerUpdates(ChangeData cd) {
     List<ReviewerStatusUpdate> reviewerUpdates = cd.reviewerUpdates();
     List<ReviewerUpdateInfo> result = new ArrayList<>(reviewerUpdates.size());
     for (ReviewerStatusUpdate c : reviewerUpdates) {
@@ -656,7 +651,7 @@ public class ChangeJson {
     return SubmitRecord.allRecordsOK(cd.submitRecords(SUBMIT_RULE_OPTIONS_STRICT));
   }
 
-  private void setSubmitter(ChangeData cd, ChangeInfo out) throws StorageException {
+  private void setSubmitter(ChangeData cd, ChangeInfo out) {
     Optional<PatchSetApproval> s = cd.getSubmitApproval();
     if (!s.isPresent()) {
       return;
@@ -665,7 +660,7 @@ public class ChangeJson {
     out.submitter = accountLoader.get(s.get().getAccountId());
   }
 
-  private Collection<ChangeMessageInfo> messages(ChangeData cd) throws StorageException {
+  private Collection<ChangeMessageInfo> messages(ChangeData cd) {
     List<ChangeMessage> messages = cmUtil.byChange(cd.notes());
     if (messages.isEmpty()) {
       return Collections.emptyList();
@@ -679,7 +674,7 @@ public class ChangeJson {
   }
 
   private Collection<AccountInfo> removableReviewers(ChangeData cd, ChangeInfo out)
-      throws PermissionBackendException, StorageException {
+      throws PermissionBackendException {
     // Although this is called removableReviewers, this method also determines
     // which CCs are removable.
     //
@@ -767,8 +762,8 @@ public class ChangeJson {
         .collect(toList());
   }
 
-  private Map<PatchSet.Id, PatchSet> loadPatchSets(ChangeData cd, Optional<PatchSet.Id> limitToPsId)
-      throws StorageException {
+  private Map<PatchSet.Id, PatchSet> loadPatchSets(
+      ChangeData cd, Optional<PatchSet.Id> limitToPsId) {
     Collection<PatchSet> src;
     if (has(ALL_REVISIONS) || has(MESSAGES)) {
       src = cd.patchSets();
@@ -799,8 +794,7 @@ public class ChangeJson {
    *     from either an index-backed or a database-backed {@link ChangeData} depending on {@code
    *     lazyload}.
    */
-  private PermissionBackend.ForChange permissionBackendForChange(CurrentUser user, ChangeData cd)
-      throws StorageException {
+  private PermissionBackend.ForChange permissionBackendForChange(CurrentUser user, ChangeData cd) {
     PermissionBackend.WithUser withUser = permissionBackend.user(user);
     return lazyLoad
         ? withUser.change(cd)

java/com/google/gerrit/server/change/ConsistencyChecker.java

@@ -574,7 +574,7 @@ public class ConsistencyChecker {
     }
 
     @Override
-    public boolean updateChange(ChangeContext ctx) throws StorageException {
+    public boolean updateChange(ChangeContext ctx) {
       ctx.getChange().setStatus(Change.Status.MERGED);
       ctx.getUpdate(ctx.getChange().currentPatchSetId()).fixStatus(Change.Status.MERGED);
       p.status = Status.FIXED;
@@ -672,8 +672,7 @@ public class ConsistencyChecker {
     }
 
     @Override
-    public boolean updateChange(ChangeContext ctx)
-        throws StorageException, PatchSetInfoNotAvailableException {
+    public boolean updateChange(ChangeContext ctx) throws PatchSetInfoNotAvailableException {
       // Delete dangling key references.
       accountPatchReviewStore.run(s -> s.clearReviewed(psId), StorageException.class);
 
@@ -706,8 +705,7 @@ public class ConsistencyChecker {
 
     @Override
     public boolean updateChange(ChangeContext ctx)
-        throws StorageException, PatchSetInfoNotAvailableException,
-            NoPatchSetsWouldRemainException {
+        throws PatchSetInfoNotAvailableException, NoPatchSetsWouldRemainException {
       if (!toDelete.contains(ctx.getChange().currentPatchSetId())) {
         return false;
       }

java/com/google/gerrit/server/change/DeleteChangeOp.java

@@ -66,8 +66,7 @@ public class DeleteChangeOp implements BatchUpdateOp {
   // executed in a single atomic BatchRefUpdate. Actually deleting the change refs first would not
   // fail gracefully if the second delete fails, but fortunately that's not what happens.
   @Override
-  public boolean updateChange(ChangeContext ctx)
-      throws RestApiException, StorageException, IOException {
+  public boolean updateChange(ChangeContext ctx) throws RestApiException, IOException {
     Collection<PatchSet> patchSets = psUtil.byChange(ctx.getNotes());
 
     ensureDeletable(ctx, id, patchSets);
@@ -107,7 +106,7 @@ public class DeleteChangeOp implements BatchUpdateOp {
   }
 
   private void cleanUpReferences(ChangeContext ctx, Change.Id id, Collection<PatchSet> patchSets)
-      throws StorageException, NoSuchChangeException {
+      throws NoSuchChangeException {
     for (PatchSet ps : patchSets) {
       accountPatchReviewStore.run(s -> s.clearReviewed(ps.getId()), StorageException.class);
     }

java/com/google/gerrit/server/change/DeleteReviewerByEmailOp.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.change;
 
 import com.google.common.flogger.FluentLogger;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.mail.Address;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.ChangeMessage;
@@ -50,7 +49,7 @@ public class DeleteReviewerByEmailOp implements BatchUpdateOp {
   }
 
   @Override
-  public boolean updateChange(ChangeContext ctx) throws StorageException {
+  public boolean updateChange(ChangeContext ctx) {
     change = ctx.getChange();
     PatchSet.Id psId = ctx.getChange().currentPatchSetId();
     String msg = "Removed reviewer " + reviewer;

java/com/google/gerrit/server/change/DeleteReviewerOp.java

@@ -19,7 +19,6 @@ import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.data.LabelType;
 import com.google.gerrit.common.data.LabelTypes;
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.DeleteReviewerInput;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
 import com.google.gerrit.extensions.restapi.AuthException;
@@ -108,8 +107,7 @@ public class DeleteReviewerOp implements BatchUpdateOp {
 
   @Override
   public boolean updateChange(ChangeContext ctx)
-      throws AuthException, ResourceNotFoundException, StorageException, PermissionBackendException,
-          IOException {
+      throws AuthException, ResourceNotFoundException, PermissionBackendException, IOException {
     Account.Id reviewerId = reviewer.getAccount().getId();
     // Check of removing this reviewer (even if there is no vote processed by the loop below) is OK
     removeReviewerControl.checkRemoveReviewer(ctx.getNotes(), ctx.getUser(), reviewerId);
@@ -194,8 +192,7 @@ public class DeleteReviewerOp implements BatchUpdateOp {
         ctx.getWhen());
   }
 
-  private Iterable<PatchSetApproval> approvals(ChangeContext ctx, Account.Id accountId)
-      throws StorageException {
+  private Iterable<PatchSetApproval> approvals(ChangeContext ctx, Account.Id accountId) {
     Iterable<PatchSetApproval> approvals;
     approvals = approvalsUtil.byChange(ctx.getNotes()).values();
     return Iterables.filter(approvals, psa -> accountId.equals(psa.getAccountId()));

java/com/google/gerrit/server/change/LabelsJson.java

@@ -36,7 +36,6 @@ import com.google.gerrit.common.data.LabelType;
 import com.google.gerrit.common.data.LabelTypes;
 import com.google.gerrit.common.data.LabelValue;
 import com.google.gerrit.common.data.SubmitRecord;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.client.ListChangesOption;
 import com.google.gerrit.extensions.common.ApprovalInfo;
 import com.google.gerrit.extensions.common.LabelInfo;
@@ -100,7 +99,7 @@ public class LabelsJson {
    */
   Map<String, LabelInfo> labelsFor(
       AccountLoader accountLoader, ChangeData cd, boolean standard, boolean detailed)
-      throws StorageException, PermissionBackendException {
+      throws PermissionBackendException {
     if (!standard && !detailed) {
       return null;
     }
@@ -115,7 +114,7 @@ public class LabelsJson {
 
   /** Returns all labels that the provided user has permission to vote on. */
   Map<String, Collection<String>> permittedLabels(Account.Id filterApprovalsBy, ChangeData cd)
-      throws StorageException, PermissionBackendException {
+      throws PermissionBackendException {
     boolean isMerged = cd.change().isMerged();
     LabelTypes labelTypes = cd.getLabelTypes();
     Map<String, LabelType> toCheck = new HashMap<>();
@@ -194,7 +193,7 @@ public class LabelsJson {
       LabelTypes labelTypes,
       boolean standard,
       boolean detailed)
-      throws StorageException, PermissionBackendException {
+      throws PermissionBackendException {
     Map<String, LabelWithStatus> labels = initLabels(accountLoader, cd, labelTypes, standard);
     if (detailed) {
       setAllApprovals(accountLoader, cd, labels);
@@ -252,8 +251,7 @@ public class LabelsJson {
     }
   }
 
-  private Map<String, Short> currentLabels(Account.Id accountId, ChangeData cd)
-      throws StorageException {
+  private Map<String, Short> currentLabels(Account.Id accountId, ChangeData cd) {
     Map<String, Short> result = new HashMap<>();
     for (PatchSetApproval psa :
         approvalsUtil.byPatchSetUser(
@@ -273,7 +271,7 @@ public class LabelsJson {
       LabelTypes labelTypes,
       boolean standard,
       boolean detailed)
-      throws StorageException, PermissionBackendException {
+      throws PermissionBackendException {
     Set<Account.Id> allUsers = new HashSet<>();
     if (detailed) {
       // Users expect to see all reviewers on closed changes, even if they
@@ -431,7 +429,7 @@ public class LabelsJson {
 
   private void setAllApprovals(
       AccountLoader accountLoader, ChangeData cd, Map<String, LabelWithStatus> labels)
-      throws StorageException, PermissionBackendException {
+      throws PermissionBackendException {
     checkState(
         !cd.change().isMerged(),
         "should not call setAllApprovals on %s change",
@@ -499,8 +497,7 @@ public class LabelsJson {
    *     from either an index-backed or a database-backed {@link ChangeData} depending on {@code
    *     lazyload}.
    */
-  private PermissionBackend.ForChange permissionBackendForChange(Account.Id user, ChangeData cd)
-      throws StorageException {
+  private PermissionBackend.ForChange permissionBackendForChange(Account.Id user, ChangeData cd) {
     PermissionBackend.WithUser withUser = permissionBackend.absentUser(user);
     return lazyLoad
         ? withUser.change(cd)

java/com/google/gerrit/server/change/NotifyResolver.java

@@ -21,7 +21,6 @@ import com.google.auto.value.AutoValue;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSetMultimap;
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
 import com.google.gerrit.extensions.api.changes.NotifyInfo;
 import com.google.gerrit.extensions.api.changes.RecipientType;
@@ -81,7 +80,7 @@ public class NotifyResolver {
 
   public Result resolve(
       NotifyHandling handling, @Nullable Map<RecipientType, NotifyInfo> notifyDetails)
-      throws BadRequestException, StorageException, IOException, ConfigInvalidException {
+      throws BadRequestException, IOException, ConfigInvalidException {
     requireNonNull(handling);
     ImmutableSetMultimap.Builder<RecipientType, Account.Id> b = ImmutableSetMultimap.builder();
     if (notifyDetails != null) {
@@ -93,7 +92,7 @@ public class NotifyResolver {
   }
 
   private ImmutableList<Account.Id> find(@Nullable List<String> inputs)
-      throws StorageException, BadRequestException, IOException, ConfigInvalidException {
+      throws BadRequestException, IOException, ConfigInvalidException {
     if (inputs == null || inputs.isEmpty()) {
       return ImmutableList.of();
     }

java/com/google/gerrit/server/change/PatchSetInserter.java

@@ -20,7 +20,6 @@ import static com.google.gerrit.server.notedb.ReviewerStateInternal.REVIEWER;
 import static java.util.Objects.requireNonNull;
 
 import com.google.common.flogger.FluentLogger;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
@@ -187,15 +186,13 @@ public class PatchSetInserter implements BatchUpdateOp {
 
   @Override
   public void updateRepo(RepoContext ctx)
-      throws AuthException, ResourceConflictException, IOException, StorageException,
-          PermissionBackendException {
+      throws AuthException, ResourceConflictException, IOException, PermissionBackendException {
     validate(ctx);
     ctx.addRefUpdate(ObjectId.zeroId(), commitId, getPatchSetId().toRefName());
   }
 
   @Override
-  public boolean updateChange(ChangeContext ctx)
-      throws ResourceConflictException, StorageException, IOException {
+  public boolean updateChange(ChangeContext ctx) throws ResourceConflictException, IOException {
     change = ctx.getChange();
     ChangeUpdate update = ctx.getUpdate(psId);
     update.setSubjectForCommit("Create patch set " + psId.get());
@@ -271,8 +268,7 @@ public class PatchSetInserter implements BatchUpdateOp {
   }
 
   private void validate(RepoContext ctx)
-      throws AuthException, ResourceConflictException, IOException, PermissionBackendException,
-          StorageException {
+      throws AuthException, ResourceConflictException, IOException, PermissionBackendException {
     // Not allowed to create a new patch set if the current patch set is locked.
     psUtil.checkPatchSetNotLocked(origNotes);
 

java/com/google/gerrit/server/change/PureRevert.java

@@ -14,7 +14,6 @@
 
 package com.google.gerrit.server.change;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.BadRequestException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.reviewdb.client.PatchSet;
@@ -38,7 +37,7 @@ public class PureRevert {
   }
 
   public boolean get(ChangeNotes notes, Optional<String> claimedOriginal)
-      throws StorageException, IOException, BadRequestException, ResourceConflictException {
+      throws IOException, BadRequestException, ResourceConflictException {
     PatchSet currentPatchSet = notes.getCurrentPatchSet();
     if (currentPatchSet == null) {
       throw new ResourceConflictException("current revision is missing");

java/com/google/gerrit/server/change/RebaseChangeOp.java

@@ -16,7 +16,6 @@ package com.google.gerrit.server.change;
 
 import static com.google.common.base.Preconditions.checkState;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.MergeConflictException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.extensions.restapi.RestApiException;
@@ -149,7 +148,7 @@ public class RebaseChangeOp implements BatchUpdateOp {
   @Override
   public void updateRepo(RepoContext ctx)
       throws MergeConflictException, InvalidChangeOperationException, RestApiException, IOException,
-          StorageException, NoSuchChangeException, PermissionBackendException {
+          NoSuchChangeException, PermissionBackendException {
     // Ok that originalPatchSet was not read in a transaction, since we just
     // need its revision.
     RevId oldRev = originalPatchSet.getRevision();
@@ -213,15 +212,14 @@ public class RebaseChangeOp implements BatchUpdateOp {
   }
 
   @Override
-  public boolean updateChange(ChangeContext ctx)
-      throws ResourceConflictException, StorageException, IOException {
+  public boolean updateChange(ChangeContext ctx) throws ResourceConflictException, IOException {
     boolean ret = patchSetInserter.updateChange(ctx);
     rebasedPatchSet = patchSetInserter.getPatchSet();
     return ret;
   }
 
   @Override
-  public void postUpdate(Context ctx) throws StorageException {
+  public void postUpdate(Context ctx) {
     patchSetInserter.postUpdate(ctx);
   }
 

java/com/google/gerrit/server/change/RebaseUtil.java

@@ -83,7 +83,7 @@ public class RebaseUtil {
     public abstract PatchSet patchSet();
   }
 
-  public Base parseBase(RevisionResource rsrc, String base) throws StorageException {
+  public Base parseBase(RevisionResource rsrc, String base) {
     // Try parsing the base as a ref string.
     PatchSet.Id basePatchSetId = PatchSet.Id.fromRef(base);
     if (basePatchSetId != null) {
@@ -119,7 +119,7 @@ public class RebaseUtil {
     return ret;
   }
 
-  private ChangeNotes notesFor(RevisionResource rsrc, Change.Id id) throws StorageException {
+  private ChangeNotes notesFor(RevisionResource rsrc, Change.Id id) {
     if (rsrc.getChange().getId().equals(id)) {
       return rsrc.getNotes();
     }
@@ -139,11 +139,10 @@ public class RebaseUtil {
    * @return the commit onto which the patch set should be rebased.
    * @throws RestApiException if rebase is not possible.
    * @throws IOException if accessing the repository fails.
-   * @throws StorageException if accessing the database fails.
    */
   public ObjectId findBaseRevision(
       PatchSet patchSet, Branch.NameKey destBranch, Repository git, RevWalk rw)
-      throws RestApiException, IOException, StorageException {
+      throws RestApiException, IOException {
     String baseRev = null;
     RevCommit commit = rw.parseCommit(ObjectId.fromString(patchSet.getRevision().get()));
 

java/com/google/gerrit/server/change/ReviewerAdder.java

@@ -31,7 +31,6 @@ import com.google.common.collect.Streams;
 import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.Nullable;
 import com.google.gerrit.common.data.GroupDescription;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.AddReviewerInput;
 import com.google.gerrit.extensions.api.changes.AddReviewerResult;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
@@ -188,14 +187,13 @@ public class ReviewerAdder {
    * @return handle describing the addition operation. If the {@code op} field is present, this
    *     operation may be added to a {@code BatchUpdate}. Otherwise, the {@code error} field
    *     contains information about an error that occurred
-   * @throws StorageException
    * @throws IOException
    * @throws PermissionBackendException
    * @throws ConfigInvalidException
    */
   public ReviewerAddition prepare(
       ChangeNotes notes, CurrentUser user, AddReviewerInput input, boolean allowGroup)
-      throws StorageException, IOException, PermissionBackendException, ConfigInvalidException {
+      throws IOException, PermissionBackendException, ConfigInvalidException {
     requireNonNull(input.reviewer);
     boolean confirmed = input.confirmed();
     boolean allowByEmail =
@@ -245,7 +243,7 @@ public class ReviewerAdder {
   @Nullable
   private ReviewerAddition addByAccountId(
       AddReviewerInput input, ChangeNotes notes, CurrentUser user)
-      throws StorageException, PermissionBackendException, IOException, ConfigInvalidException {
+      throws PermissionBackendException, IOException, ConfigInvalidException {
     IdentifiedUser reviewerUser;
     boolean exactMatchFound = false;
     try {
@@ -449,7 +447,7 @@ public class ReviewerAdder {
           : ImmutableSet.of();
     }
 
-    public void gatherResults(ChangeData cd) throws StorageException, PermissionBackendException {
+    public void gatherResults(ChangeData cd) throws PermissionBackendException {
       checkState(op != null, "addition did not result in an update op");
       checkState(op.getResult() != null, "op did not return a result");
 
@@ -510,7 +508,7 @@ public class ReviewerAdder {
       CurrentUser user,
       Iterable<? extends AddReviewerInput> inputs,
       boolean allowGroup)
-      throws StorageException, IOException, PermissionBackendException, ConfigInvalidException {
+      throws IOException, PermissionBackendException, ConfigInvalidException {
     // Process CC ops before reviewer ops, so a user that appears in both lists ends up as a
     // reviewer; the last call to ChangeUpdate#putReviewer wins. This can happen if the caller
     // specifies the same string twice, or less obviously if they specify multiple groups with
@@ -558,7 +556,7 @@ public class ReviewerAdder {
     // We never call updateRepo on the addition ops, which is only ok because it's a no-op.
 
     public void updateChange(ChangeContext ctx, PatchSet patchSet)
-        throws StorageException, RestApiException, IOException {
+        throws RestApiException, IOException {
       for (ReviewerAddition addition : additions()) {
         addition.op.setPatchSet(patchSet);
         addition.op.updateChange(ctx);

java/com/google/gerrit/server/change/ReviewerJson.java

@@ -21,7 +21,6 @@ import com.google.common.collect.Lists;
 import com.google.gerrit.common.data.LabelType;
 import com.google.gerrit.common.data.LabelTypes;
 import com.google.gerrit.common.data.SubmitRecord;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.ReviewerInfo;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.mail.Address;
@@ -65,7 +64,7 @@ public class ReviewerJson {
   }
 
   public List<ReviewerInfo> format(Collection<ReviewerResource> rsrcs)
-      throws StorageException, PermissionBackendException {
+      throws PermissionBackendException {
     List<ReviewerInfo> infos = Lists.newArrayListWithCapacity(rsrcs.size());
     AccountLoader loader = accountLoaderFactory.create(true);
     ChangeData cd = null;
@@ -88,13 +87,12 @@ public class ReviewerJson {
     return infos;
   }
 
-  public List<ReviewerInfo> format(ReviewerResource rsrc)
-      throws StorageException, PermissionBackendException {
+  public List<ReviewerInfo> format(ReviewerResource rsrc) throws PermissionBackendException {
     return format(ImmutableList.of(rsrc));
   }
 
   public ReviewerInfo format(ReviewerInfo out, Account.Id reviewerAccountId, ChangeData cd)
-      throws StorageException, PermissionBackendException {
+      throws PermissionBackendException {
     PatchSet.Id psId = cd.change().currentPatchSetId();
     return format(
         out,
@@ -108,7 +106,7 @@ public class ReviewerJson {
       Account.Id reviewerAccountId,
       ChangeData cd,
       Iterable<PatchSetApproval> approvals)
-      throws StorageException, PermissionBackendException {
+      throws PermissionBackendException {
     LabelTypes labelTypes = cd.getLabelTypes();
 
     out.approvals = new TreeMap<>(labelTypes.nameComparator());

java/com/google/gerrit/server/change/RevisionJson.java

@@ -32,7 +32,6 @@ import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
 import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.client.ListChangesOption;
 import com.google.gerrit.extensions.common.ChangeInfo;
 import com.google.gerrit.extensions.common.CommitInfo;
@@ -155,8 +154,7 @@ public class RevisionJson {
    * depending on the options provided when constructing this instance.
    */
   public RevisionInfo getRevisionInfo(ChangeData cd, PatchSet in)
-      throws PatchListNotAvailableException, GpgException, StorageException, IOException,
-          PermissionBackendException {
+      throws PatchListNotAvailableException, GpgException, IOException, PermissionBackendException {
     AccountLoader accountLoader = accountLoaderFactory.create(has(DETAILED_ACCOUNTS));
     try (Repository repo = openRepoIfNecessary(cd.project());
         RevWalk rw = newRevWalk(repo)) {
@@ -213,8 +211,7 @@ public class RevisionJson {
       Map<PatchSet.Id, PatchSet> map,
       Optional<PatchSet.Id> limitToPsId,
       ChangeInfo changeInfo)
-      throws PatchListNotAvailableException, GpgException, StorageException, IOException,
-          PermissionBackendException {
+      throws PatchListNotAvailableException, GpgException, IOException, PermissionBackendException {
     Map<String, RevisionInfo> res = new LinkedHashMap<>();
     try (Repository repo = openRepoIfNecessary(cd.project());
         RevWalk rw = newRevWalk(repo)) {
@@ -239,7 +236,7 @@ public class RevisionJson {
   }
 
   private Map<String, FetchInfo> makeFetchMap(ChangeData cd, PatchSet in)
-      throws PermissionBackendException, StorageException, IOException {
+      throws PermissionBackendException, IOException {
     Map<String, FetchInfo> r = new LinkedHashMap<>();
     for (Extension<DownloadScheme> e : downloadSchemes) {
       String schemeName = e.getExportName();
@@ -275,8 +272,7 @@ public class RevisionJson {
       @Nullable RevWalk rw,
       boolean fillCommit,
       @Nullable ChangeInfo changeInfo)
-      throws PatchListNotAvailableException, GpgException, StorageException, IOException,
-          PermissionBackendException {
+      throws PatchListNotAvailableException, GpgException, IOException, PermissionBackendException {
     Change c = cd.change();
     RevisionInfo out = new RevisionInfo();
     out.isCurrent = in.getId().equals(c.currentPatchSetId());
@@ -350,14 +346,13 @@ public class RevisionJson {
    *     lazyload}.
    */
   private PermissionBackend.ForChange permissionBackendForChange(
-      PermissionBackend.WithUser withUser, ChangeData cd) throws StorageException {
+      PermissionBackend.WithUser withUser, ChangeData cd) {
     return lazyLoad
         ? withUser.change(cd)
         : withUser.indexedChange(cd, notesFactory.createFromIndexedChange(cd.change()));
   }
 
-  private boolean isWorldReadable(ChangeData cd)
-      throws StorageException, PermissionBackendException, IOException {
+  private boolean isWorldReadable(ChangeData cd) throws PermissionBackendException, IOException {
     try {
       permissionBackendForChange(permissionBackend.user(anonymous), cd)
           .check(ChangePermission.READ);

java/com/google/gerrit/server/change/SetAssigneeOp.java

@@ -17,7 +17,6 @@ package com.google.gerrit.server.change;
 import static java.util.Objects.requireNonNull;
 
 import com.google.common.flogger.FluentLogger;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.extensions.restapi.RestApiException;
 import com.google.gerrit.reviewdb.client.Change;
@@ -74,7 +73,7 @@ public class SetAssigneeOp implements BatchUpdateOp {
   }
 
   @Override
-  public boolean updateChange(ChangeContext ctx) throws StorageException, RestApiException {
+  public boolean updateChange(ChangeContext ctx) throws RestApiException {
     change = ctx.getChange();
     if (newAssignee.getAccountId().equals(change.getAssignee())) {
       return false;
@@ -117,7 +116,7 @@ public class SetAssigneeOp implements BatchUpdateOp {
   }
 
   @Override
-  public void postUpdate(Context ctx) throws StorageException {
+  public void postUpdate(Context ctx) {
     try {
       SetAssigneeSender cm =
           setAssigneeSenderFactory.create(

java/com/google/gerrit/server/change/SetHashtagsOp.java

@@ -21,7 +21,6 @@ import com.google.common.base.Joiner;
 import com.google.common.collect.ImmutableSortedSet;
 import com.google.common.collect.Ordering;
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.HashtagsInput;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.extensions.restapi.BadRequestException;
@@ -82,8 +81,7 @@ public class SetHashtagsOp implements BatchUpdateOp {
 
   @Override
   public boolean updateChange(ChangeContext ctx)
-      throws AuthException, BadRequestException, MethodNotAllowedException, StorageException,
-          IOException {
+      throws AuthException, BadRequestException, MethodNotAllowedException, IOException {
     if (input == null || (input.add == null && input.remove == null)) {
       updatedHashtags = ImmutableSortedSet.of();
       return false;
@@ -146,7 +144,7 @@ public class SetHashtagsOp implements BatchUpdateOp {
   }
 
   @Override
-  public void postUpdate(Context ctx) throws StorageException {
+  public void postUpdate(Context ctx) {
     if (updated() && fireEvent) {
       hashtagsEdited.fire(
           change, ctx.getAccount(), updatedHashtags, toAdd, toRemove, ctx.getWhen());

java/com/google/gerrit/server/change/SetPrivateOp.java

@@ -16,7 +16,6 @@ package com.google.gerrit.server.change;
 
 import com.google.common.base.Strings;
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.BadRequestException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.reviewdb.client.Change;
@@ -75,7 +74,7 @@ public class SetPrivateOp implements BatchUpdateOp {
 
   @Override
   public boolean updateChange(ChangeContext ctx)
-      throws ResourceConflictException, StorageException, BadRequestException {
+      throws ResourceConflictException, BadRequestException {
     change = ctx.getChange();
     if (ctx.getChange().isPrivate() == isPrivate) {
       // No-op

java/com/google/gerrit/server/change/WalkSorter.java

@@ -98,7 +98,7 @@ public class WalkSorter {
     return this;
   }
 
-  public Iterable<PatchSetData> sort(Iterable<ChangeData> in) throws StorageException, IOException {
+  public Iterable<PatchSetData> sort(Iterable<ChangeData> in) throws IOException {
     ListMultimap<Project.NameKey, ChangeData> byProject =
         MultimapBuilder.hashKeys().arrayListValues().build();
     for (ChangeData cd : in) {
@@ -114,7 +114,7 @@ public class WalkSorter {
   }
 
   private List<PatchSetData> sortProject(Project.NameKey project, Collection<ChangeData> in)
-      throws StorageException, IOException {
+      throws IOException {
     try (Repository repo = repoManager.openRepository(project);
         RevWalk rw = new RevWalk(repo)) {
       rw.setRetainBody(retainBody);
@@ -217,7 +217,7 @@ public class WalkSorter {
   }
 
   private ListMultimap<RevCommit, PatchSetData> byCommit(RevWalk rw, Collection<ChangeData> in)
-      throws StorageException, IOException {
+      throws IOException {
     ListMultimap<RevCommit, PatchSetData> byCommit =
         MultimapBuilder.hashKeys(in.size()).arrayListValues(1).build();
     for (ChangeData cd : in) {

java/com/google/gerrit/server/change/WorkInProgressOp.java

@@ -17,7 +17,6 @@ package com.google.gerrit.server.change;
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableList;
 import com.google.gerrit.common.Nullable;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.ChangeMessage;
@@ -85,7 +84,7 @@ public class WorkInProgressOp implements BatchUpdateOp {
   }
 
   @Override
-  public boolean updateChange(ChangeContext ctx) throws StorageException {
+  public boolean updateChange(ChangeContext ctx) {
     change = ctx.getChange();
     notes = ctx.getNotes();
     ps = psUtil.get(ctx.getNotes(), change.currentPatchSetId());

java/com/google/gerrit/server/edit/ChangeEditModifier.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.edit;
 
 import com.google.common.collect.ImmutableList;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.extensions.restapi.BadRequestException;
 import com.google.gerrit.extensions.restapi.MergeConflictException;
@@ -114,7 +113,7 @@ public class ChangeEditModifier {
    * @throws PermissionBackendException
    */
   public void createEdit(Repository repository, ChangeNotes notes)
-      throws AuthException, IOException, InvalidChangeOperationException, StorageException,
+      throws AuthException, IOException, InvalidChangeOperationException,
           PermissionBackendException, ResourceConflictException {
     assertCanEdit(notes);
 
@@ -142,8 +141,8 @@ public class ChangeEditModifier {
    * @throws PermissionBackendException
    */
   public void rebaseEdit(Repository repository, ChangeNotes notes)
-      throws AuthException, InvalidChangeOperationException, IOException, StorageException,
-          MergeConflictException, PermissionBackendException, ResourceConflictException {
+      throws AuthException, InvalidChangeOperationException, IOException, MergeConflictException,
+          PermissionBackendException, ResourceConflictException {
     assertCanEdit(notes);
 
     Optional<ChangeEdit> optionalChangeEdit = lookupChangeEdit(notes);
@@ -207,7 +206,7 @@ public class ChangeEditModifier {
    * @throws BadRequestException if the commit message is malformed
    */
   public void modifyMessage(Repository repository, ChangeNotes notes, String newCommitMessage)
-      throws AuthException, IOException, UnchangedCommitMessageException, StorageException,
+      throws AuthException, IOException, UnchangedCommitMessageException,
           PermissionBackendException, BadRequestException, ResourceConflictException {
     assertCanEdit(notes);
     newCommitMessage = CommitMessageUtil.checkAndSanitizeCommitMessage(newCommitMessage);
@@ -250,7 +249,7 @@ public class ChangeEditModifier {
    */
   public void modifyFile(
       Repository repository, ChangeNotes notes, String filePath, RawInput newContent)
-      throws AuthException, InvalidChangeOperationException, IOException, StorageException,
+      throws AuthException, InvalidChangeOperationException, IOException,
           PermissionBackendException, ResourceConflictException {
     modifyTree(repository, notes, new ChangeFileContentModification(filePath, newContent));
   }
@@ -268,7 +267,7 @@ public class ChangeEditModifier {
    * @throws ResourceConflictException if the project state does not permit the operation
    */
   public void deleteFile(Repository repository, ChangeNotes notes, String file)
-      throws AuthException, InvalidChangeOperationException, IOException, StorageException,
+      throws AuthException, InvalidChangeOperationException, IOException,
           PermissionBackendException, ResourceConflictException {
     modifyTree(repository, notes, new DeleteFileModification(file));
   }
@@ -289,7 +288,7 @@ public class ChangeEditModifier {
    */
   public void renameFile(
       Repository repository, ChangeNotes notes, String currentFilePath, String newFilePath)
-      throws AuthException, InvalidChangeOperationException, IOException, StorageException,
+      throws AuthException, InvalidChangeOperationException, IOException,
           PermissionBackendException, ResourceConflictException {
     modifyTree(repository, notes, new RenameFileModification(currentFilePath, newFilePath));
   }
@@ -307,14 +306,14 @@ public class ChangeEditModifier {
    * @throws PermissionBackendException
    */
   public void restoreFile(Repository repository, ChangeNotes notes, String file)
-      throws AuthException, InvalidChangeOperationException, IOException, StorageException,
+      throws AuthException, InvalidChangeOperationException, IOException,
           PermissionBackendException, ResourceConflictException {
     modifyTree(repository, notes, new RestoreFileModification(file));
   }
 
   private void modifyTree(
       Repository repository, ChangeNotes notes, TreeModification treeModification)
-      throws AuthException, IOException, StorageException, InvalidChangeOperationException,
+      throws AuthException, IOException, InvalidChangeOperationException,
           PermissionBackendException, ResourceConflictException {
     assertCanEdit(notes);
 
@@ -360,7 +359,7 @@ public class ChangeEditModifier {
       PatchSet patchSet,
       List<TreeModification> treeModifications)
       throws AuthException, IOException, InvalidChangeOperationException, MergeConflictException,
-          StorageException, PermissionBackendException, ResourceConflictException {
+          PermissionBackendException, ResourceConflictException {
     assertCanEdit(notes);
 
     Optional<ChangeEdit> optionalChangeEdit = lookupChangeEdit(notes);
@@ -391,8 +390,7 @@ public class ChangeEditModifier {
   }
 
   private void assertCanEdit(ChangeNotes notes)
-      throws AuthException, PermissionBackendException, IOException, ResourceConflictException,
-          StorageException {
+      throws AuthException, PermissionBackendException, IOException, ResourceConflictException {
     if (!currentUser.get().isIdentifiedUser()) {
       throw new AuthException("Authentication required");
     }
@@ -442,13 +440,12 @@ public class ChangeEditModifier {
     return changeEditUtil.byChange(notes);
   }
 
-  private PatchSet getBasePatchSet(Optional<ChangeEdit> optionalChangeEdit, ChangeNotes notes)
-      throws StorageException {
+  private PatchSet getBasePatchSet(Optional<ChangeEdit> optionalChangeEdit, ChangeNotes notes) {
     Optional<PatchSet> editBasePatchSet = optionalChangeEdit.map(ChangeEdit::getBasePatchSet);
     return editBasePatchSet.isPresent() ? editBasePatchSet.get() : lookupCurrentPatchSet(notes);
   }
 
-  private PatchSet lookupCurrentPatchSet(ChangeNotes notes) throws StorageException {
+  private PatchSet lookupCurrentPatchSet(ChangeNotes notes) {
     return patchSetUtil.current(notes);
   }
 

java/com/google/gerrit/server/edit/ChangeEditUtil.java

@@ -146,7 +146,6 @@ public class ChangeEditUtil {
    * @param notify Notify handling that defines to whom email notifications should be sent after the
    *     change edit is published.
    * @throws IOException
-   * @throws StorageException
    * @throws UpdateException
    * @throws RestApiException
    */
@@ -156,7 +155,7 @@ public class ChangeEditUtil {
       CurrentUser user,
       ChangeEdit edit,
       NotifyResolver.Result notify)
-      throws IOException, StorageException, RestApiException, UpdateException {
+      throws IOException, RestApiException, UpdateException {
     Change change = edit.getChange();
     try (Repository repo = gitManager.openRepository(change.getProject());
         ObjectInserter oi = repo.newObjectInserter();
@@ -210,9 +209,8 @@ public class ChangeEditUtil {
    *
    * @param edit change edit to delete
    * @throws IOException
-   * @throws StorageException
    */
-  public void delete(ChangeEdit edit) throws IOException, StorageException {
+  public void delete(ChangeEdit edit) throws IOException {
     Change change = edit.getChange();
     try (Repository repo = gitManager.openRepository(change.getProject())) {
       deleteRef(repo, edit);

java/com/google/gerrit/server/events/EventBroker.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.events;
 
 import com.google.common.flogger.FluentLogger;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.registration.DynamicItem;
 import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.lifecycle.LifecycleModule;
@@ -77,8 +76,7 @@ public class EventBroker implements EventDispatcher {
   }
 
   @Override
-  public void postEvent(Change change, ChangeEvent event)
-      throws StorageException, PermissionBackendException {
+  public void postEvent(Change change, ChangeEvent event) throws PermissionBackendException {
     fireEvent(change, event);
   }
 
@@ -94,7 +92,7 @@ public class EventBroker implements EventDispatcher {
   }
 
   @Override
-  public void postEvent(Event event) throws StorageException, PermissionBackendException {
+  public void postEvent(Event event) throws PermissionBackendException {
     fireEvent(event);
   }
 
@@ -102,8 +100,7 @@ public class EventBroker implements EventDispatcher {
     unrestrictedListeners.runEach(l -> l.onEvent(event));
   }
 
-  protected void fireEvent(Change change, ChangeEvent event)
-      throws StorageException, PermissionBackendException {
+  protected void fireEvent(Change change, ChangeEvent event) throws PermissionBackendException {
     for (PluginSetEntryContext<UserScopedEventListener> c : listeners) {
       CurrentUser user = c.call(UserScopedEventListener::getUser);
       if (isVisibleTo(change, user)) {
@@ -134,7 +131,7 @@ public class EventBroker implements EventDispatcher {
     fireEventForUnrestrictedListeners(event);
   }
 
-  protected void fireEvent(Event event) throws StorageException, PermissionBackendException {
+  protected void fireEvent(Event event) throws PermissionBackendException {
     for (PluginSetEntryContext<UserScopedEventListener> c : listeners) {
       CurrentUser user = c.call(UserScopedEventListener::getUser);
       if (isVisibleTo(event, user)) {
@@ -158,8 +155,7 @@ public class EventBroker implements EventDispatcher {
     }
   }
 
-  protected boolean isVisibleTo(Change change, CurrentUser user)
-      throws StorageException, PermissionBackendException {
+  protected boolean isVisibleTo(Change change, CurrentUser user) throws PermissionBackendException {
     if (change == null) {
       return false;
     }
@@ -193,8 +189,7 @@ public class EventBroker implements EventDispatcher {
     }
   }
 
-  protected boolean isVisibleTo(Event event, CurrentUser user)
-      throws StorageException, PermissionBackendException {
+  protected boolean isVisibleTo(Event event, CurrentUser user) throws PermissionBackendException {
     if (event instanceof RefEvent) {
       RefEvent refEvent = (RefEvent) event;
       String ref = refEvent.getRefName();

java/com/google/gerrit/server/events/EventDispatcher.java

@@ -14,7 +14,6 @@
 
 package com.google.gerrit.server.events;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Branch;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
@@ -27,11 +26,9 @@ public interface EventDispatcher {
    *
    * @param change The change that the event is related to
    * @param event The event to post
-   * @throws StorageException on failure to post the event due to DB error
    * @throws PermissionBackendException on failure of permission checks
    */
-  void postEvent(Change change, ChangeEvent event)
-      throws StorageException, PermissionBackendException;
+  void postEvent(Change change, ChangeEvent event) throws PermissionBackendException;
 
   /**
    * Post a stream event that is related to a branch
@@ -57,8 +54,7 @@ public interface EventDispatcher {
    * specific postEvent methods for those use cases.
    *
    * @param event The event to post.
-   * @throws StorageException on failure to post the event due to DB error
    * @throws PermissionBackendException on failure of permission checks
    */
-  void postEvent(Event event) throws StorageException, PermissionBackendException;
+  void postEvent(Event event) throws PermissionBackendException;
 }

java/com/google/gerrit/server/events/EventFactory.java

@@ -155,8 +155,7 @@ public class EventFactory {
    * @param notes
    * @return object suitable for serialization to JSON
    */
-  public ChangeAttribute asChangeAttribute(Change change, ChangeNotes notes)
-      throws StorageException {
+  public ChangeAttribute asChangeAttribute(Change change, ChangeNotes notes) {
     ChangeAttribute a = asChangeAttribute(change);
     Set<String> hashtags = notes.load().getHashtags();
     if (!hashtags.isEmpty()) {
@@ -201,7 +200,7 @@ public class EventFactory {
    * @param a
    * @param notes
    */
-  public void addAllReviewers(ChangeAttribute a, ChangeNotes notes) throws StorageException {
+  public void addAllReviewers(ChangeAttribute a, ChangeNotes notes) {
     Collection<Account.Id> reviewers = approvalsUtil.getReviewers(notes).all();
     if (!reviewers.isEmpty()) {
       a.allReviewers = Lists.newArrayListWithCapacity(reviewers.size());
@@ -285,7 +284,7 @@ public class EventFactory {
   }
 
   private void addDependsOn(RevWalk rw, ChangeAttribute ca, Change change, PatchSet currentPs)
-      throws StorageException, IOException {
+      throws IOException {
     RevCommit commit = rw.parseCommit(ObjectId.fromString(currentPs.getRevision().get()));
     final List<String> parentNames = new ArrayList<>(commit.getParentCount());
     for (RevCommit p : commit.getParents()) {
@@ -318,7 +317,7 @@ public class EventFactory {
   }
 
   private void addNeededBy(RevWalk rw, ChangeAttribute ca, Change change, PatchSet currentPs)
-      throws StorageException, IOException {
+      throws IOException {
     if (currentPs.getGroups().isEmpty()) {
       return;
     }
@@ -507,7 +506,7 @@ public class EventFactory {
 
   // TODO: The same method exists in PatchSetInfoFactory, find a common place
   // for it
-  private UserIdentity toUserIdentity(PersonIdent who) throws IOException, StorageException {
+  private UserIdentity toUserIdentity(PersonIdent who) throws IOException {
     UserIdentity u = new UserIdentity();
     u.setName(who.getName());
     u.setEmail(who.getEmailAddress());

java/com/google/gerrit/server/events/StreamEventsApiListener.java

@@ -135,7 +135,7 @@ public class StreamEventsApiListener
     this.changeNotesFactory = changeNotesFactory;
   }
 
-  private ChangeNotes getNotes(ChangeInfo info) throws StorageException {
+  private ChangeNotes getNotes(ChangeInfo info) {
     try {
       return changeNotesFactory.createChecked(new Change.Id(info._number));
     } catch (NoSuchChangeException e) {
@@ -143,7 +143,7 @@ public class StreamEventsApiListener
     }
   }
 
-  private PatchSet getPatchSet(ChangeNotes notes, RevisionInfo info) throws StorageException {
+  private PatchSet getPatchSet(ChangeNotes notes, RevisionInfo info) {
     return psUtil.get(notes, PatchSet.Id.fromRef(info.ref));
   }
 

java/com/google/gerrit/server/extensions/events/EventUtil.java

@@ -16,7 +16,6 @@ package com.google.gerrit.server.extensions.events;
 
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.client.ListChangesOption;
 import com.google.gerrit.extensions.common.AccountInfo;
 import com.google.gerrit.extensions.common.ApprovalInfo;
@@ -74,19 +73,17 @@ public class EventUtil {
     this.revisionJsonFactory = revisionJsonFactory;
   }
 
-  public ChangeInfo changeInfo(Change change) throws StorageException {
+  public ChangeInfo changeInfo(Change change) {
     return changeJsonFactory.create(CHANGE_OPTIONS).format(change);
   }
 
   public RevisionInfo revisionInfo(Project project, PatchSet ps)
-      throws StorageException, PatchListNotAvailableException, GpgException, IOException,
-          PermissionBackendException {
+      throws PatchListNotAvailableException, GpgException, IOException, PermissionBackendException {
     return revisionInfo(project.getNameKey(), ps);
   }
 
   public RevisionInfo revisionInfo(Project.NameKey project, PatchSet ps)
-      throws StorageException, PatchListNotAvailableException, GpgException, IOException,
-          PermissionBackendException {
+      throws PatchListNotAvailableException, GpgException, IOException, PermissionBackendException {
     ChangeData cd = changeDataFactory.create(project, ps.getId().getParentKey());
     return revisionJsonFactory.create(CHANGE_OPTIONS).getRevisionInfo(cd, ps);
   }

java/com/google/gerrit/server/git/GroupCollector.java

@@ -28,7 +28,6 @@ import com.google.common.collect.SetMultimap;
 import com.google.common.collect.Sets;
 import com.google.common.collect.SortedSetMultimap;
 import com.google.common.flogger.FluentLogger;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.PatchSet;
 import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.PatchSetUtil;
@@ -89,7 +88,7 @@ public class GroupCollector {
   }
 
   private interface Lookup {
-    List<String> lookup(PatchSet.Id psId) throws StorageException;
+    List<String> lookup(PatchSet.Id psId);
   }
 
   private final ListMultimap<ObjectId, PatchSet.Id> patchSetsBySha;
@@ -198,7 +197,7 @@ public class GroupCollector {
     }
   }
 
-  public SortedSetMultimap<ObjectId, String> getGroups() throws StorageException {
+  public SortedSetMultimap<ObjectId, String> getGroups() {
     done = true;
     SortedSetMultimap<ObjectId, String> result =
         MultimapBuilder.hashKeys(groups.keySet().size()).treeSetValues().build();
@@ -224,8 +223,7 @@ public class GroupCollector {
     return id != null && patchSetsBySha.containsKey(id);
   }
 
-  private Set<String> resolveGroups(ObjectId forCommit, Collection<String> candidates)
-      throws StorageException {
+  private Set<String> resolveGroups(ObjectId forCommit, Collection<String> candidates) {
     Set<String> actual = Sets.newTreeSet();
     Set<String> done = Sets.newHashSetWithExpectedSize(candidates.size());
     Set<String> seen = Sets.newHashSetWithExpectedSize(candidates.size());
@@ -260,7 +258,7 @@ public class GroupCollector {
     }
   }
 
-  private Iterable<String> resolveGroup(ObjectId forCommit, String group) throws StorageException {
+  private Iterable<String> resolveGroup(ObjectId forCommit, String group) {
     ObjectId id = parseGroup(forCommit, group);
     if (id != null) {
       PatchSet.Id psId = Iterables.getFirst(patchSetsBySha.get(id), null);

java/com/google/gerrit/server/git/MergedByPushOp.java

@@ -17,7 +17,6 @@ package com.google.gerrit.server.git;
 import static java.util.Objects.requireNonNull;
 
 import com.google.common.flogger.FluentLogger;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.ChangeMessage;
 import com.google.gerrit.reviewdb.client.LabelId;
@@ -105,7 +104,7 @@ public class MergedByPushOp implements BatchUpdateOp {
   }
 
   @Override
-  public boolean updateChange(ChangeContext ctx) throws StorageException, IOException {
+  public boolean updateChange(ChangeContext ctx) throws IOException {
     change = ctx.getChange();
     correctBranch = refName.equals(change.getDest().get());
     if (!correctBranch) {
@@ -193,7 +192,7 @@ public class MergedByPushOp implements BatchUpdateOp {
         change, patchSet, ctx.getAccount(), patchSet.getRevision().get(), ctx.getWhen());
   }
 
-  private PatchSetInfo getPatchSetInfo(ChangeContext ctx) throws IOException, StorageException {
+  private PatchSetInfo getPatchSetInfo(ChangeContext ctx) throws IOException {
     RevWalk rw = ctx.getRevWalk();
     RevCommit commit =
         rw.parseCommit(ObjectId.fromString(requireNonNull(patchSet).getRevision().get()));

java/com/google/gerrit/server/git/PureRevertCache.java

@@ -18,7 +18,6 @@ import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Throwables;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.BadRequestException;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
@@ -87,11 +86,9 @@ public class PureRevertCache {
    *
    * @return {@code true} if {@code claimedRevert} is a pure (clean) revert.
    * @throws IOException if there was a problem with the storage layer
-   * @throws StorageException if there was a problem with the storage layer
    * @throws BadRequestException if there is a problem with the provided {@link ChangeNotes}
    */
-  public boolean isPureRevert(ChangeNotes claimedRevert)
-      throws StorageException, IOException, BadRequestException {
+  public boolean isPureRevert(ChangeNotes claimedRevert) throws IOException, BadRequestException {
     if (claimedRevert.getChange().getRevertOf() == null) {
       throw new BadRequestException("revertOf not set");
     }

java/com/google/gerrit/server/git/receive/ReceiveCommits.java

@@ -2274,7 +2274,7 @@ class ReceiveCommits {
     return newChanges;
   }
 
-  private boolean foundInExistingRef(Collection<Ref> existingRefs) throws StorageException {
+  private boolean foundInExistingRef(Collection<Ref> existingRefs) {
     for (Ref ref : existingRefs) {
       ChangeNotes notes =
           notesFactory.create(project.getNameKey(), Change.Id.fromRef(ref.getName()));
@@ -2394,11 +2394,11 @@ class ReceiveCommits {
     }
   }
 
-  private ChangeLookup lookupByChangeKey(RevCommit c, Change.Key key) throws StorageException {
+  private ChangeLookup lookupByChangeKey(RevCommit c, Change.Key key) {
     return new ChangeLookup(c, key, queryProvider.get().byBranchKey(magicBranch.dest, key));
   }
 
-  private ChangeLookup lookupByCommit(RevCommit c) throws StorageException {
+  private ChangeLookup lookupByCommit(RevCommit c) {
     return new ChangeLookup(
         c, null, queryProvider.get().byBranchCommit(magicBranch.dest, c.getName()));
   }
@@ -2525,8 +2525,8 @@ class ReceiveCommits {
   }
 
   private void submit(Collection<CreateRequest> create, Collection<ReplaceRequest> replace)
-      throws StorageException, RestApiException, UpdateException, IOException,
-          ConfigInvalidException, PermissionBackendException {
+      throws RestApiException, UpdateException, IOException, ConfigInvalidException,
+          PermissionBackendException {
     Map<ObjectId, Change> bySha = Maps.newHashMapWithExpectedSize(create.size() + replace.size());
     for (CreateRequest r : create) {
       requireNonNull(
@@ -2582,7 +2582,7 @@ class ReceiveCommits {
     }
   }
 
-  private void readChangesForReplace() throws StorageException {
+  private void readChangesForReplace() {
     Collection<ChangeNotes> allNotes =
         notesFactory.create(
             replaceByChange.values().stream().map(r -> r.ontoChange).collect(toList()));
@@ -2646,10 +2646,9 @@ class ReceiveCommits {
      *
      * @return whether the new commit is valid
      * @throws IOException
-     * @throws StorageException
      * @throws PermissionBackendException
      */
-    boolean validateNewPatchSet() throws IOException, StorageException, PermissionBackendException {
+    boolean validateNewPatchSet() throws IOException, PermissionBackendException {
       if (!validateNewPatchSetNoteDb()) {
         return false;
       }
@@ -2670,8 +2669,7 @@ class ReceiveCommits {
       return true;
     }
 
-    boolean validateNewPatchSetForAutoClose()
-        throws IOException, StorageException, PermissionBackendException {
+    boolean validateNewPatchSetForAutoClose() throws IOException, PermissionBackendException {
       if (!validateNewPatchSetNoteDb()) {
         return false;
       }
@@ -2681,8 +2679,7 @@ class ReceiveCommits {
     }
 
     /** Validates the new PS against permissions and notedb status. */
-    private boolean validateNewPatchSetNoteDb()
-        throws IOException, StorageException, PermissionBackendException {
+    private boolean validateNewPatchSetNoteDb() throws IOException, PermissionBackendException {
       if (notes == null) {
         reject(inputCommand, "change " + ontoChange + " not found");
         return false;
@@ -2845,7 +2842,7 @@ class ReceiveCommits {
     }
 
     /** Updates 'this' to add a new patchset. */
-    private void newPatchSet() throws IOException, StorageException {
+    private void newPatchSet() throws IOException {
       RevCommit newCommit = receivePack.getRevWalk().parseCommit(newCommitId);
       psId =
           ChangeUtil.nextPatchSetIdFromAllRefsMap(allRefs(), notes.getChange().currentPatchSetId());
@@ -2909,7 +2906,7 @@ class ReceiveCommits {
           psId.getParentKey(),
           new BatchUpdateOp() {
             @Override
-            public boolean updateChange(ChangeContext ctx) throws StorageException {
+            public boolean updateChange(ChangeContext ctx) {
               PatchSet ps = psUtil.get(ctx.getNotes(), psId);
               List<String> oldGroups = ps.getGroups();
               if (oldGroups == null) {
@@ -3241,7 +3238,7 @@ class ReceiveCommits {
     }
   }
 
-  private Optional<ChangeNotes> getChangeNotes(Change.Id changeId) throws StorageException {
+  private Optional<ChangeNotes> getChangeNotes(Change.Id changeId) {
     try {
       return Optional.of(notesFactory.createChecked(project.getNameKey(), changeId));
     } catch (NoSuchChangeException e) {
@@ -3249,7 +3246,7 @@ class ReceiveCommits {
     }
   }
 
-  private <T> T executeIndexQuery(Action<T> action) throws StorageException {
+  private <T> T executeIndexQuery(Action<T> action) {
     try {
       return retryHelper.execute(
           ActionType.INDEX_QUERY, action, StorageException.class::isInstance);
@@ -3260,8 +3257,7 @@ class ReceiveCommits {
     }
   }
 
-  private Map<Change.Key, ChangeNotes> openChangesByKeyByBranch(Branch.NameKey branch)
-      throws StorageException {
+  private Map<Change.Key, ChangeNotes> openChangesByKeyByBranch(Branch.NameKey branch) {
     Map<Change.Key, ChangeNotes> r = new HashMap<>();
     for (ChangeData cd : queryProvider.get().byBranchOpen(branch)) {
       try {

java/com/google/gerrit/server/git/receive/ReplaceOp.java

@@ -29,7 +29,6 @@ import com.google.common.collect.Streams;
 import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.Nullable;
 import com.google.gerrit.common.data.LabelType;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.AddReviewerInput;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
 import com.google.gerrit.extensions.client.ChangeKind;
@@ -242,8 +241,7 @@ public class ReplaceOp implements BatchUpdateOp {
 
   @Override
   public boolean updateChange(ChangeContext ctx)
-      throws RestApiException, StorageException, IOException, PermissionBackendException,
-          ConfigInvalidException {
+      throws RestApiException, IOException, PermissionBackendException, ConfigInvalidException {
     notes = ctx.getNotes();
     Change change = notes.getChange();
     if (change == null || change.isClosed()) {
@@ -387,7 +385,7 @@ public class ReplaceOp implements BatchUpdateOp {
   }
 
   private ChangeMessage createChangeMessage(ChangeContext ctx, String reviewMessage)
-      throws StorageException, IOException {
+      throws IOException {
     String approvalMessage =
         ApprovalsUtil.renderMessageWithApprovals(
             patchSetId.get(), approvals, scanLabels(ctx, approvals));
@@ -441,7 +439,7 @@ public class ReplaceOp implements BatchUpdateOp {
   }
 
   private Map<String, PatchSetApproval> scanLabels(ChangeContext ctx, Map<String, Short> approvals)
-      throws StorageException, IOException {
+      throws IOException {
     Map<String, PatchSetApproval> current = new HashMap<>();
     // We optimize here and only retrieve current when approvals provided
     if (!approvals.isEmpty()) {
@@ -485,8 +483,7 @@ public class ReplaceOp implements BatchUpdateOp {
     }
   }
 
-  private List<Comment> publishComments(ChangeContext ctx, boolean workInProgress)
-      throws StorageException {
+  private List<Comment> publishComments(ChangeContext ctx, boolean workInProgress) {
     List<Comment> comments =
         commentsUtil.draftByChangeAuthor(ctx.getNotes(), ctx.getUser().getAccountId());
     publishCommentUtil.publish(

java/com/google/gerrit/server/index/account/IndexedAccountQuery.java

@@ -16,7 +16,6 @@ package com.google.gerrit.server.index.account;
 
 import static com.google.common.base.Preconditions.checkState;
 
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.index.Index;
 import com.google.gerrit.index.QueryOptions;
 import com.google.gerrit.index.query.DataSource;
@@ -37,7 +36,7 @@ public class IndexedAccountQuery extends IndexedQuery<Account.Id, AccountState>
   }
 
   @Override
-  public boolean match(AccountState accountState) throws StorageException {
+  public boolean match(AccountState accountState) {
     Predicate<AccountState> pred = getChild(0);
     checkState(
         pred.isMatchable(),

java/com/google/gerrit/server/index/change/ChangeField.java

@@ -154,7 +154,7 @@ public class ChangeField {
       exact(ChangeQueryBuilder.FIELD_FILE)
           .buildRepeatable(cd -> firstNonNull(cd.currentFilePaths(), ImmutableList.of()));
 
-  public static Set<String> getFileParts(ChangeData cd) throws StorageException {
+  public static Set<String> getFileParts(ChangeData cd) {
     List<String> paths;
     try {
       paths = cd.currentFilePaths();
@@ -191,7 +191,7 @@ public class ChangeField {
   public static final FieldDef<ChangeData, Iterable<String>> EXTENSION =
       exact(ChangeQueryBuilder.FIELD_EXTENSION).buildRepeatable(ChangeField::getExtensions);
 
-  public static Set<String> getExtensions(ChangeData cd) throws StorageException {
+  public static Set<String> getExtensions(ChangeData cd) {
     return extensions(cd).collect(toSet());
   }
 
@@ -202,7 +202,7 @@ public class ChangeField {
   public static final FieldDef<ChangeData, String> ONLY_EXTENSIONS =
       exact(ChangeQueryBuilder.FIELD_ONLY_EXTENSIONS).build(ChangeField::getAllExtensionsAsList);
 
-  public static String getAllExtensionsAsList(ChangeData cd) throws StorageException {
+  public static String getAllExtensionsAsList(ChangeData cd) {
     return extensions(cd).distinct().sorted().collect(joining(","));
   }
 
@@ -214,7 +214,7 @@ public class ChangeField {
    * <p>If the change contains multiple files with the same extension the extension is returned
    * multiple times in the stream (once per file).
    */
-  private static Stream<String> extensions(ChangeData cd) throws StorageException {
+  private static Stream<String> extensions(ChangeData cd) {
     try {
       return cd.currentFilePaths().stream()
           // Use case-insensitive file extensions even though other file fields are case-sensitive.
@@ -231,7 +231,7 @@ public class ChangeField {
   public static final FieldDef<ChangeData, Iterable<String>> FOOTER =
       exact(ChangeQueryBuilder.FIELD_FOOTER).buildRepeatable(ChangeField::getFooters);
 
-  public static Set<String> getFooters(ChangeData cd) throws StorageException {
+  public static Set<String> getFooters(ChangeData cd) {
     try {
       return cd.commitFooters().stream()
           .map(f -> f.toString().toLowerCase(Locale.US))
@@ -245,7 +245,7 @@ public class ChangeField {
   public static final FieldDef<ChangeData, Iterable<String>> DIRECTORY =
       exact(ChangeQueryBuilder.FIELD_DIRECTORY).buildRepeatable(ChangeField::getDirectories);
 
-  public static Set<String> getDirectories(ChangeData cd) throws StorageException {
+  public static Set<String> getDirectories(ChangeData cd) {
     List<String> paths;
     try {
       paths = cd.currentFilePaths();
@@ -470,7 +470,7 @@ public class ChangeField {
   public static final FieldDef<ChangeData, Iterable<String>> EXACT_COMMIT =
       exact(ChangeQueryBuilder.FIELD_EXACTCOMMIT).buildRepeatable(ChangeField::getRevisions);
 
-  private static Set<String> getRevisions(ChangeData cd) throws StorageException {
+  private static Set<String> getRevisions(ChangeData cd) {
     Set<String> revisions = new HashSet<>();
     for (PatchSet ps : cd.patchSets()) {
       if (ps.getRevision() != null) {
@@ -489,7 +489,7 @@ public class ChangeField {
   public static final FieldDef<ChangeData, Iterable<String>> LABEL =
       exact("label2").buildRepeatable(cd -> getLabels(cd, true));
 
-  private static Iterable<String> getLabels(ChangeData cd, boolean owners) throws StorageException {
+  private static Iterable<String> getLabels(ChangeData cd, boolean owners) {
     Set<String> allApprovals = new HashSet<>();
     Set<String> distinctApprovals = new HashSet<>();
     for (PatchSetApproval a : cd.currentApprovals()) {
@@ -506,21 +506,19 @@ public class ChangeField {
     return allApprovals;
   }
 
-  public static Set<String> getAuthorParts(ChangeData cd) throws StorageException, IOException {
+  public static Set<String> getAuthorParts(ChangeData cd) throws IOException {
     return SchemaUtil.getPersonParts(cd.getAuthor());
   }
 
-  public static Set<String> getAuthorNameAndEmail(ChangeData cd)
-      throws StorageException, IOException {
+  public static Set<String> getAuthorNameAndEmail(ChangeData cd) throws IOException {
     return getNameAndEmail(cd.getAuthor());
   }
 
-  public static Set<String> getCommitterParts(ChangeData cd) throws StorageException, IOException {
+  public static Set<String> getCommitterParts(ChangeData cd) throws IOException {
     return SchemaUtil.getPersonParts(cd.getCommitter());
   }
 
-  public static Set<String> getCommitterNameAndEmail(ChangeData cd)
-      throws StorageException, IOException {
+  public static Set<String> getCommitterNameAndEmail(ChangeData cd) throws IOException {
     return getNameAndEmail(cd.getCommitter());
   }
 
@@ -856,7 +854,7 @@ public class ChangeField {
     return storedSubmitRecords(cd.submitRecords(opts));
   }
 
-  public static List<String> formatSubmitRecordValues(ChangeData cd) throws StorageException {
+  public static List<String> formatSubmitRecordValues(ChangeData cd) {
     return formatSubmitRecordValues(
         cd.submitRecords(SUBMIT_RULE_OPTIONS_STRICT), cd.change().getOwner());
   }
@@ -944,7 +942,7 @@ public class ChangeField {
                 return result;
               });
 
-  private static String getTopic(ChangeData cd) throws StorageException {
+  private static String getTopic(ChangeData cd) {
     Change c = cd.change();
     if (c == null) {
       return null;

java/com/google/gerrit/server/index/change/IndexedChangeQuery.java

@@ -22,7 +22,6 @@ import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.index.IndexConfig;
 import com.google.gerrit.index.QueryOptions;
 import com.google.gerrit.index.query.DataSource;
@@ -81,7 +80,7 @@ public class IndexedChangeQuery extends IndexedQuery<Change.Id, ChangeData>
   }
 
   @Override
-  public ResultSet<ChangeData> read() throws StorageException {
+  public ResultSet<ChangeData> read() {
     final DataSource<ChangeData> currSource = source;
     final ResultSet<ChangeData> rs = currSource.read();
 
@@ -114,7 +113,7 @@ public class IndexedChangeQuery extends IndexedQuery<Change.Id, ChangeData>
   }
 
   @Override
-  public boolean match(ChangeData cd) throws StorageException {
+  public boolean match(ChangeData cd) {
     if (source != null && fromSource.get(cd) == source) {
       return true;
     }

java/com/google/gerrit/server/index/change/ReindexAfterRefUpdate.java

@@ -21,7 +21,6 @@ import com.google.common.flogger.FluentLogger;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListeningExecutorService;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.events.GitReferenceUpdatedListener;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.reviewdb.client.Branch;
@@ -152,7 +151,7 @@ public class ReindexAfterRefUpdate implements GitReferenceUpdatedListener {
     }
 
     @Override
-    protected List<Change> impl(RequestContext ctx) throws StorageException {
+    protected List<Change> impl(RequestContext ctx) {
       String ref = event.getRefName();
       Project.NameKey project = new Project.NameKey(event.getProjectName());
       if (ref.equals(RefNames.REFS_CONFIG)) {
@@ -179,7 +178,7 @@ public class ReindexAfterRefUpdate implements GitReferenceUpdatedListener {
     }
 
     @Override
-    protected Void impl(RequestContext ctx) throws StorageException, IOException {
+    protected Void impl(RequestContext ctx) throws IOException {
       // Reload change, as some time may have passed since GetChanges.
       try {
         Change c =

java/com/google/gerrit/server/mail/MailUtil.java

@@ -18,7 +18,6 @@ import static com.google.gerrit.server.notedb.ReviewerStateInternal.CC;
 import static com.google.gerrit.server.notedb.ReviewerStateInternal.REVIEWER;
 
 import com.google.gerrit.common.FooterConstants;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.server.ReviewerSet;
@@ -37,7 +36,7 @@ public class MailUtil {
 
   public static MailRecipients getRecipientsFromFooters(
       AccountResolver accountResolver, List<FooterLine> footerLines)
-      throws StorageException, IOException, ConfigInvalidException {
+      throws IOException, ConfigInvalidException {
     MailRecipients recipients = new MailRecipients();
     for (FooterLine footerLine : footerLines) {
       try {
@@ -62,7 +61,7 @@ public class MailUtil {
 
   @SuppressWarnings("deprecation")
   private static Account.Id toAccountId(AccountResolver accountResolver, String nameOrEmail)
-      throws StorageException, UnprocessableEntityException, IOException, ConfigInvalidException {
+      throws UnprocessableEntityException, IOException, ConfigInvalidException {
     return accountResolver.resolveByNameOrEmail(nameOrEmail).asUnique().getAccount().getId();
   }
 

java/com/google/gerrit/server/mail/receive/MailProcessor.java

@@ -147,7 +147,7 @@ public class MailProcessor {
   }
 
   private void processImpl(BatchUpdate.Factory buf, MailMessage message)
-      throws StorageException, UpdateException, RestApiException, IOException {
+      throws UpdateException, RestApiException, IOException {
     for (Extension<MailFilter> filter : mailFilters) {
       if (!filter.getProvider().get().shouldProcessMessage(message)) {
         logger.atWarning().log(
@@ -208,7 +208,7 @@ public class MailProcessor {
 
   private void persistComments(
       BatchUpdate.Factory buf, MailMessage message, MailMetadata metadata, Account.Id sender)
-      throws StorageException, UpdateException, RestApiException {
+      throws UpdateException, RestApiException {
     try (ManualRequestContext ctx = oneOffRequestContext.openAs(sender)) {
       List<ChangeData> changeDataList =
           queryProvider.get().byLegacyChangeId(new Change.Id(metadata.changeNumber));
@@ -283,7 +283,7 @@ public class MailProcessor {
 
     @Override
     public boolean updateChange(ChangeContext ctx)
-        throws StorageException, UnprocessableEntityException, PatchListNotAvailableException {
+        throws UnprocessableEntityException, PatchListNotAvailableException {
       patchSet = psUtil.get(ctx.getNotes(), psId);
       notes = ctx.getNotes();
       if (patchSet == null) {
@@ -358,7 +358,7 @@ public class MailProcessor {
     }
 
     private PatchSet targetPatchSetForComment(
-        ChangeContext ctx, MailComment mailComment, PatchSet current) throws StorageException {
+        ChangeContext ctx, MailComment mailComment, PatchSet current) {
       if (mailComment.getInReplyTo() != null) {
         return psUtil.get(
             ctx.getNotes(),
@@ -369,7 +369,7 @@ public class MailProcessor {
 
     private Comment persistentCommentFromMailComment(
         ChangeContext ctx, MailComment mailComment, PatchSet patchSetForComment)
-        throws StorageException, UnprocessableEntityException, PatchListNotAvailableException {
+        throws UnprocessableEntityException, PatchListNotAvailableException {
       String fileName;
       // The patch set that this comment is based on is different if this
       // comment was sent in reply to a comment on a previous patch set.
@@ -412,7 +412,7 @@ public class MailProcessor {
     return "(" + numComments + (numComments > 1 ? " comments)" : " comment)");
   }
 
-  private Set<String> existingMessageIds(ChangeData cd) throws StorageException {
+  private Set<String> existingMessageIds(ChangeData cd) {
     Set<String> existingMessageIds = new HashSet<>();
     cd.messages().stream()
         .forEach(

java/com/google/gerrit/server/mail/send/AbandonedSender.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.mail.send;
 
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.account.ProjectWatches.NotifyType;
@@ -31,8 +30,7 @@ public class AbandonedSender extends ReplyToChangeSender {
 
   @Inject
   public AbandonedSender(
-      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id)
-      throws StorageException {
+      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id) {
     super(ea, "abandon", ChangeEmail.newChangeData(ea, project, id));
   }
 

java/com/google/gerrit/server/mail/send/AddReviewerSender.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.mail.send;
 
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
 import com.google.inject.Inject;
@@ -29,8 +28,7 @@ public class AddReviewerSender extends NewChangeSender {
 
   @Inject
   public AddReviewerSender(
-      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id)
-      throws StorageException {
+      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id) {
     super(ea, newChangeData(ea, project, id));
   }
 

java/com/google/gerrit/server/mail/send/ChangeEmail.java

@@ -84,7 +84,7 @@ public abstract class ChangeEmail extends NotificationEmail {
   protected Set<Account.Id> authors;
   protected boolean emailOnlyAuthors;
 
-  protected ChangeEmail(EmailArguments ea, String mc, ChangeData cd) throws StorageException {
+  protected ChangeEmail(EmailArguments ea, String mc, ChangeData cd) {
     super(ea, mc, cd.change().getDest());
     changeData = cd;
     change = cd.change();
@@ -343,8 +343,7 @@ public abstract class ChangeEmail extends NotificationEmail {
   }
 
   @Override
-  protected final Watchers getWatchers(NotifyType type, boolean includeWatchersFromNotifyConfig)
-      throws StorageException {
+  protected final Watchers getWatchers(NotifyType type, boolean includeWatchersFromNotifyConfig) {
     if (!NotifyHandling.ALL.equals(notify.handling())) {
       return new Watchers();
     }

java/com/google/gerrit/server/mail/send/CommentSender.java

@@ -119,8 +119,7 @@ public class CommentSender extends ReplyToChangeSender {
       CommentsUtil commentsUtil,
       @GerritServerConfig Config cfg,
       @Assisted Project.NameKey project,
-      @Assisted Change.Id id)
-      throws StorageException {
+      @Assisted Change.Id id) {
     super(ea, "comment", newChangeData(ea, project, id));
     this.commentsUtil = commentsUtil;
     this.incomingEmailEnabled =
@@ -129,7 +128,7 @@ public class CommentSender extends ReplyToChangeSender {
     this.replyToAddress = cfg.getString("sendemail", null, "replyToAddress");
   }
 
-  public void setComments(List<Comment> comments) throws StorageException {
+  public void setComments(List<Comment> comments) {
     inlineComments = comments;
 
     Set<String> paths = new HashSet<>();

java/com/google/gerrit/server/mail/send/CreateChangeSender.java

@@ -44,8 +44,7 @@ public class CreateChangeSender extends NewChangeSender {
       EmailArguments ea,
       PermissionBackend permissionBackend,
       @Assisted Project.NameKey project,
-      @Assisted Change.Id id)
-      throws StorageException {
+      @Assisted Change.Id id) {
     super(ea, newChangeData(ea, project, id));
     this.permissionBackend = permissionBackend;
   }

java/com/google/gerrit/server/mail/send/DeleteReviewerSender.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.mail.send;
 
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.RecipientType;
 import com.google.gerrit.mail.Address;
 import com.google.gerrit.reviewdb.client.Account;
@@ -42,8 +41,7 @@ public class DeleteReviewerSender extends ReplyToChangeSender {
 
   @Inject
   public DeleteReviewerSender(
-      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id)
-      throws StorageException {
+      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id) {
     super(ea, "deleteReviewer", newChangeData(ea, project, id));
   }
 

java/com/google/gerrit/server/mail/send/DeleteVoteSender.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.mail.send;
 
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.account.ProjectWatches.NotifyType;
@@ -31,8 +30,7 @@ public class DeleteVoteSender extends ReplyToChangeSender {
 
   @Inject
   protected DeleteVoteSender(
-      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id)
-      throws StorageException {
+      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id) {
     super(ea, "deleteVote", newChangeData(ea, project, id));
   }
 

java/com/google/gerrit/server/mail/send/MergedSender.java

@@ -38,8 +38,8 @@ public class MergedSender extends ReplyToChangeSender {
   private final LabelTypes labelTypes;
 
   @Inject
-  public MergedSender(EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id)
-      throws StorageException {
+  public MergedSender(
+      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id) {
     super(ea, "merged", newChangeData(ea, project, id));
     labelTypes = changeData.getLabelTypes();
   }

java/com/google/gerrit/server/mail/send/NewChangeSender.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.mail.send;
 
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.RecipientType;
 import com.google.gerrit.mail.Address;
 import com.google.gerrit.reviewdb.client.Account;
@@ -33,7 +32,7 @@ public abstract class NewChangeSender extends ChangeEmail {
   private final Set<Account.Id> extraCC = new HashSet<>();
   private final Set<Address> extraCCByEmail = new HashSet<>();
 
-  protected NewChangeSender(EmailArguments ea, ChangeData cd) throws StorageException {
+  protected NewChangeSender(EmailArguments ea, ChangeData cd) {
     super(ea, "newchange", cd);
   }
 

java/com/google/gerrit/server/mail/send/NotificationEmail.java

@@ -77,8 +77,7 @@ public abstract class NotificationEmail extends OutgoingEmail {
   }
 
   /** Returns all watchers that are relevant */
-  protected abstract Watchers getWatchers(NotifyType type, boolean includeWatchersFromNotifyConfig)
-      throws StorageException;
+  protected abstract Watchers getWatchers(NotifyType type, boolean includeWatchersFromNotifyConfig);
 
   /** Add users or email addresses to the TO, CC, or BCC list. */
   protected void add(RecipientType type, Watchers.List list) {

java/com/google/gerrit/server/mail/send/ProjectWatch.java

@@ -19,7 +19,6 @@ import com.google.common.collect.ImmutableSet;
 import com.google.common.flogger.FluentLogger;
 import com.google.gerrit.common.data.GroupDescription;
 import com.google.gerrit.common.data.GroupReference;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.index.query.Predicate;
 import com.google.gerrit.index.query.QueryParseException;
 import com.google.gerrit.mail.Address;
@@ -62,8 +61,7 @@ public class ProjectWatch {
   }
 
   /** Returns all watchers that are relevant */
-  public final Watchers getWatchers(NotifyType type, boolean includeWatchersFromNotifyConfig)
-      throws StorageException {
+  public final Watchers getWatchers(NotifyType type, boolean includeWatchersFromNotifyConfig) {
     Watchers matching = new Watchers();
     Set<Account.Id> projectWatchers = new HashSet<>();
 
@@ -148,8 +146,7 @@ public class ProjectWatch {
     }
   }
 
-  private void add(Watchers matching, NotifyConfig nc)
-      throws StorageException, QueryParseException {
+  private void add(Watchers matching, NotifyConfig nc) throws QueryParseException {
     for (GroupReference ref : nc.getGroups()) {
       CurrentUser user = new SingleGroupUser(ref.getUUID());
       if (filterMatch(user, nc.getFilter())) {
@@ -203,8 +200,7 @@ public class ProjectWatch {
       Account.Id accountId,
       ProjectWatchKey key,
       Set<NotifyType> watchedTypes,
-      NotifyType type)
-      throws StorageException {
+      NotifyType type) {
     IdentifiedUser user = args.identifiedUserFactory.create(accountId);
 
     try {
@@ -222,8 +218,7 @@ public class ProjectWatch {
     return false;
   }
 
-  private boolean filterMatch(CurrentUser user, String filter)
-      throws StorageException, QueryParseException {
+  private boolean filterMatch(CurrentUser user, String filter) throws QueryParseException {
     ChangeQueryBuilder qb;
     Predicate<ChangeData> p = null;
 

java/com/google/gerrit/server/mail/send/ReplacePatchSetSender.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.mail.send;
 
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.NotifyHandling;
 import com.google.gerrit.extensions.api.changes.RecipientType;
 import com.google.gerrit.reviewdb.client.Account;
@@ -41,8 +40,7 @@ public class ReplacePatchSetSender extends ReplyToChangeSender {
 
   @Inject
   public ReplacePatchSetSender(
-      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id)
-      throws StorageException {
+      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id) {
     super(ea, "newpatchset", newChangeData(ea, project, id));
   }
 

java/com/google/gerrit/server/mail/send/ReplyToChangeSender.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.mail.send;
 
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.extensions.api.changes.RecipientType;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
@@ -27,8 +26,7 @@ public abstract class ReplyToChangeSender extends ChangeEmail {
     T create(Project.NameKey project, Change.Id id);
   }
 
-  protected ReplyToChangeSender(EmailArguments ea, String mc, ChangeData cd)
-      throws StorageException {
+  protected ReplyToChangeSender(EmailArguments ea, String mc, ChangeData cd) {
     super(ea, mc, cd);
   }
 

java/com/google/gerrit/server/mail/send/RestoredSender.java

@@ -15,7 +15,6 @@
 package com.google.gerrit.server.mail.send;
 
 import com.google.gerrit.exceptions.EmailException;
-import com.google.gerrit.exceptions.StorageException;
 import com.google.gerrit.reviewdb.client.Change;
 import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.account.ProjectWatches.NotifyType;
@@ -31,8 +30,7 @@ public class RestoredSender extends ReplyToChangeSender {
 
   @Inject
   public RestoredSender(
-      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id)
-      throws StorageException {
+      EmailArguments ea, @Assisted Project.NameKey project, @Assisted Change.Id id) {
     super(ea, "restore", ChangeEmail.newChangeData(ea, project, id));
   }