Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  ChangeApi: Add default implementation of setPrivate with null message
  ChangeApi: Annotate nullable message parameters as @Nullable
  ProjectApi: Add methods to get/set project's HEAD
  CommitApi: Add method to get "included in" information
  Upgrade elasticsearch-rest-client to 6.5.4

Change-Id: I25b8ad37fbca65235d9139d38d6d7bcdd0ff6e11

WORKSPACE

@@ -1091,8 +1091,8 @@ maven_jar(
 # and httpasyncclient as necessary.
 maven_jar(
     name = "elasticsearch-rest-client",
-    artifact = "org.elasticsearch.client:elasticsearch-rest-client:6.5.3",
+    artifact = "org.elasticsearch.client:elasticsearch-rest-client:6.5.4",
-    sha1 = "ac8df46fce1c01b61cbf1f84186bf910d12b577e",
+    sha1 = "552175b06e34df96f114d1c8aaa908e535c8f1be",
 )
 
 JACKSON_VERSION = "2.9.8"

java/com/google/gerrit/extensions/api/changes/ChangeApi.java

@@ -93,9 +93,13 @@ public interface ChangeApi {
 
   void setPrivate(boolean value, @Nullable String message) throws RestApiException;
 
-  void setWorkInProgress(String message) throws RestApiException;
+  default void setPrivate(boolean value) throws RestApiException {
+    setPrivate(value, null);
+  }
 
-  void setReadyForReview(String message) throws RestApiException;
+  void setWorkInProgress(@Nullable String message) throws RestApiException;
+
+  void setReadyForReview(@Nullable String message) throws RestApiException;
 
   default void setWorkInProgress() throws RestApiException {
     setWorkInProgress(null);

java/com/google/gerrit/extensions/api/projects/CommitApi.java

@@ -16,6 +16,7 @@ package com.google.gerrit.extensions.api.projects;
 
 import com.google.gerrit.extensions.api.changes.ChangeApi;
 import com.google.gerrit.extensions.api.changes.CherryPickInput;
+import com.google.gerrit.extensions.api.changes.IncludedInInfo;
 import com.google.gerrit.extensions.restapi.NotImplementedException;
 import com.google.gerrit.extensions.restapi.RestApiException;
 
@@ -23,11 +24,18 @@ public interface CommitApi {
 
   ChangeApi cherryPick(CherryPickInput input) throws RestApiException;
 
+  IncludedInInfo includedIn() throws RestApiException;
+
   /** A default implementation for source compatibility when adding new methods to the interface. */
   class NotImplemented implements CommitApi {
     @Override
     public ChangeApi cherryPick(CherryPickInput input) throws RestApiException {
       throw new NotImplementedException();
     }
+
+    @Override
+    public IncludedInInfo includedIn() throws RestApiException {
+      throw new NotImplementedException();
+    }
   }
 }

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

@@ -342,7 +342,7 @@ class ChangeApiImpl implements ChangeApi {
   }
 
   @Override
-  public void setWorkInProgress(String message) throws RestApiException {
+  public void setWorkInProgress(@Nullable String message) throws RestApiException {
     try {
       setWip.apply(change, new WorkInProgressOp.Input(message));
     } catch (Exception e) {
@@ -351,7 +351,7 @@ class ChangeApiImpl implements ChangeApi {
   }
 
   @Override
-  public void setReadyForReview(String message) throws RestApiException {
+  public void setReadyForReview(@Nullable String message) throws RestApiException {
     try {
       setReady.apply(change, new WorkInProgressOp.Input(message));
     } catch (Exception e) {

java/com/google/gerrit/server/api/projects/CommitApiImpl.java

@@ -19,10 +19,12 @@ import static com.google.gerrit.server.api.ApiUtil.asRestApiException;
 import com.google.gerrit.extensions.api.changes.ChangeApi;
 import com.google.gerrit.extensions.api.changes.Changes;
 import com.google.gerrit.extensions.api.changes.CherryPickInput;
+import com.google.gerrit.extensions.api.changes.IncludedInInfo;
 import com.google.gerrit.extensions.api.projects.CommitApi;
 import com.google.gerrit.extensions.restapi.RestApiException;
 import com.google.gerrit.server.project.CommitResource;
 import com.google.gerrit.server.restapi.change.CherryPickCommit;
+import com.google.gerrit.server.restapi.project.CommitIncludedIn;
 import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
 
@@ -33,13 +35,18 @@ public class CommitApiImpl implements CommitApi {
 
   private final Changes changes;
   private final CherryPickCommit cherryPickCommit;
+  private final CommitIncludedIn includedIn;
   private final CommitResource commitResource;
 
   @Inject
   CommitApiImpl(
-      Changes changes, CherryPickCommit cherryPickCommit, @Assisted CommitResource commitResource) {
+      Changes changes,
+      CherryPickCommit cherryPickCommit,
+      CommitIncludedIn includedIn,
+      @Assisted CommitResource commitResource) {
     this.changes = changes;
     this.cherryPickCommit = cherryPickCommit;
+    this.includedIn = includedIn;
     this.commitResource = commitResource;
   }
 
@@ -51,4 +58,13 @@ public class CommitApiImpl implements CommitApi {
       throw asRestApiException("Cannot cherry pick", e);
     }
   }
+
+  @Override
+  public IncludedInInfo includedIn() throws RestApiException {
+    try {
+      return includedIn.apply(commitResource);
+    } catch (Exception e) {
+      throw asRestApiException("Could not extract IncludedIn data", e);
+    }
+  }
 }

javatests/com/google/gerrit/acceptance/api/project/CommitIncludedInIT.java

@@ -12,14 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.google.gerrit.acceptance.rest.project;
+package com.google.gerrit.acceptance.api.project;
 
 import static com.google.common.truth.Truth.assertThat;
 import static org.eclipse.jgit.lib.Constants.R_TAGS;
 
 import com.google.gerrit.acceptance.AbstractDaemonTest;
+import com.google.gerrit.acceptance.NoHttpd;
 import com.google.gerrit.acceptance.PushOneCommit.Result;
-import com.google.gerrit.acceptance.RestResponse;
 import com.google.gerrit.common.data.Permission;
 import com.google.gerrit.extensions.api.changes.IncludedInInfo;
 import com.google.gerrit.extensions.api.changes.ReviewInput;
@@ -28,6 +28,7 @@ import com.google.gerrit.reviewdb.client.Branch;
 import org.eclipse.jgit.lib.ObjectId;
 import org.junit.Test;
 
+@NoHttpd
 public class CommitIncludedInIT extends AbstractDaemonTest {
   @Test
   public void includedInOpenChange() throws Exception {
@@ -60,10 +61,6 @@ public class CommitIncludedInIT extends AbstractDaemonTest {
   }
 
   private IncludedInInfo getIncludedIn(ObjectId id) throws Exception {
-    RestResponse r =
+    return gApi.projects().name(project.get()).commit(id.name()).includedIn();
-        userRestSession.get("/projects/" + project.get() + "/commits/" + id.name() + "/in");
-    IncludedInInfo result = newGson().fromJson(r.getReader(), IncludedInInfo.class);
-    r.consume();
-    return result;
   }
 }

javatests/com/google/gerrit/elasticsearch/ElasticContainer.java

@@ -45,7 +45,7 @@ public class ElasticContainer extends ElasticsearchContainer {
       case V6_4:
         return "docker.elastic.co/elasticsearch/elasticsearch-oss:6.4.3";
       case V6_5:
-        return "docker.elastic.co/elasticsearch/elasticsearch-oss:6.5.3";
+        return "docker.elastic.co/elasticsearch/elasticsearch-oss:6.5.4";
       case V7_0:
         return "docker.elastic.co/elasticsearch/elasticsearch-oss:7.0.0-alpha1";
     }