Merge changes from topic "RestApiException-refactoring"

* changes:
  Make RestApiException(String, Exception) constructor protected
  Do not throw generic RestApiException to signal an internal server error
  ProjectsImpl: Use asRestApiException method to wrap exception as RestApiException
  Make RestApiException(String) constructor protected
  Submit: Do not throw generic RestApiException to signal an internal server error
  RestApiException: Make default constructor protected
  Remove unused default constructors from RestApiException classes
  PluginCollection: Pass id which was not found to ResourceNotFoundException
  RestApiServlet: Return error message when raw input is not supported
  Make error response for non-default dashboards consistent & include message

java/com/google/gerrit/acceptance/rest/PluginCollection.java

@@ -45,7 +45,7 @@ public class PluginCollection implements ChildCollection<ConfigResource, PluginR
   @Override
   public PluginResource parse(ConfigResource parent, IdString id)
       throws ResourceNotFoundException, Exception {
-    throw new ResourceNotFoundException();
+    throw new ResourceNotFoundException(id);
   }
 
   @Override

java/com/google/gerrit/extensions/restapi/MethodNotAllowedException.java

@@ -18,10 +18,6 @@ package com.google.gerrit.extensions.restapi;
 public class MethodNotAllowedException extends RestApiException {
   private static final long serialVersionUID = 1L;
 
-  public MethodNotAllowedException() {
-    super();
-  }
-
   /** @param msg error text for client describing why the method is not allowed. */
   public MethodNotAllowedException(String msg) {
     super(msg);

java/com/google/gerrit/extensions/restapi/PreconditionFailedException.java

@@ -18,8 +18,6 @@ package com.google.gerrit.extensions.restapi;
 public class PreconditionFailedException extends RestApiException {
   private static final long serialVersionUID = 1L;
 
-  public PreconditionFailedException() {}
-
   /** @param msg message to return to the client describing the error. */
   public PreconditionFailedException(String msg) {
     super(msg);

java/com/google/gerrit/extensions/restapi/RestApiException.java

@@ -21,13 +21,17 @@ public class RestApiException extends Exception {
   private static final long serialVersionUID = 1L;
   private CacheControl caching = CacheControl.NONE;
 
-  public RestApiException() {}
+  public static RestApiException wrap(String msg, Exception e) {
+    return new RestApiException(msg, e);
+  }
 
-  public RestApiException(String msg) {
+  protected RestApiException() {}
+
+  protected RestApiException(String msg) {
     super(msg);
   }
 
-  public RestApiException(String msg, Throwable cause) {
+  protected RestApiException(String msg, Throwable cause) {
     super(msg, cause);
   }
 

java/com/google/gerrit/httpd/restapi/RestApiServlet.java

@@ -1237,7 +1237,7 @@ public class RestApiServlet extends HttpServlet {
         return obj;
       }
     }
-    throw new MethodNotAllowedException();
+    throw new MethodNotAllowedException("raw input not supported");
   }
 
   private Object parseString(String value, Type type)

java/com/google/gerrit/server/api/ApiUtil.java

@@ -32,7 +32,7 @@ public class ApiUtil {
   public static RestApiException asRestApiException(String msg, Exception e)
       throws RuntimeException {
     Throwables.throwIfUnchecked(e);
-    return e instanceof RestApiException ? (RestApiException) e : new RestApiException(msg, e);
+    return e instanceof RestApiException ? (RestApiException) e : RestApiException.wrap(msg, e);
   }
 
   private ApiUtil() {}

java/com/google/gerrit/server/api/plugins/PluginApiImpl.java

@@ -69,7 +69,11 @@ public class PluginApiImpl implements PluginApi {
 
   @Override
   public void disable() throws RestApiException {
-    disable.apply(resource, new Input());
+    try {
+      disable.apply(resource, new Input());
+    } catch (Exception e) {
+      throw asRestApiException("Cannot disable plugin", e);
+    }
   }
 
   @Override

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

@@ -156,7 +156,7 @@ class ProjectsImpl implements Projects {
           .withStart(r.getStart())
           .apply();
     } catch (StorageException e) {
-      throw new RestApiException("Cannot query projects", e);
+      throw asRestApiException("Cannot query projects", e);
     }
   }
 }

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

@@ -293,7 +293,7 @@ class ReceiveCommits {
     } else if ((e instanceof ExecutionException) && (e.getCause() instanceof RestApiException)) {
       return (RestApiException) e.getCause();
     }
-    return new RestApiException("Error inserting change/patchset", e);
+    return RestApiException.wrap("Error inserting change/patchset", e);
   }
 
   // ReceiveCommits has a lot of fields, sorry. Here and in the constructor they are split up

java/com/google/gerrit/server/plugins/DisablePlugin.java

@@ -45,12 +45,9 @@ public class DisablePlugin implements RestModifyView<PluginResource, Input> {
   }
 
   @Override
-  public Response<PluginInfo> apply(PluginResource resource, Input input) throws RestApiException {
-    try {
-      permissionBackend.currentUser().check(GlobalPermission.ADMINISTRATE_SERVER);
-    } catch (PermissionBackendException e) {
-      throw new RestApiException("Could not check permission", e);
-    }
+  public Response<PluginInfo> apply(PluginResource resource, Input input)
+      throws RestApiException, PermissionBackendException {
+    permissionBackend.currentUser().check(GlobalPermission.ADMINISTRATE_SERVER);
     loader.checkRemoteAdminEnabled();
     String name = resource.getName();
     if (mandatoryPluginsCollection.contains(name)) {

java/com/google/gerrit/server/restapi/change/Submit.java

@@ -212,12 +212,10 @@ public class Submit
         return Response.ok(new Output(change));
       }
 
-      String msg =
+      throw new IllegalStateException(
           String.format(
               "change %s of project %s unexpectedly had status %s after submit attempt",
-              updatedChange.getId(), updatedChange.getProject(), updatedChange.getStatus());
-      logger.atWarning().log(msg);
-      throw new RestApiException(msg);
+              updatedChange.getId(), updatedChange.getProject(), updatedChange.getStatus()));
     }
   }
 

java/com/google/gerrit/server/restapi/project/CreateDashboard.java

@@ -17,7 +17,7 @@ package com.google.gerrit.server.restapi.project;
 import com.google.gerrit.extensions.api.projects.DashboardInfo;
 import com.google.gerrit.extensions.api.projects.SetDashboardInput;
 import com.google.gerrit.extensions.restapi.IdString;
-import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
+import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
 import com.google.gerrit.extensions.restapi.Response;
 import com.google.gerrit.extensions.restapi.RestApiException;
 import com.google.gerrit.extensions.restapi.RestCollectionCreateView;
@@ -48,7 +48,7 @@ public class CreateDashboard
       throws RestApiException, IOException, PermissionBackendException {
     parent.getProjectState().checkStatePermitsWrite();
     if (!DashboardsCollection.isDefaultDashboard(id)) {
-      throw new ResourceNotFoundException(id);
+      throw new MethodNotAllowedException("cannot create non-default dashboard");
     }
     SetDefaultDashboard set = setDefault.get();
     set.inherited = inherited;

java/com/google/gerrit/server/restapi/project/DeleteDashboard.java

@@ -43,6 +43,6 @@ public class DeleteDashboard implements RestModifyView<DashboardResource, SetDas
     }
 
     // TODO: Implement delete of dashboards by API.
-    throw new MethodNotAllowedException();
+    throw new MethodNotAllowedException("cannot delete non-default dashboard");
   }
 }

java/com/google/gerrit/server/restapi/project/SetDashboard.java

@@ -40,7 +40,7 @@ public class SetDashboard implements RestModifyView<DashboardResource, SetDashbo
       return defaultSetter.get().apply(resource, input);
     }
 
-    // TODO: Implement creation/update of dashboards by API.
-    throw new MethodNotAllowedException();
+    // TODO: Implement update of dashboards by API.
+    throw new MethodNotAllowedException("cannot update non-default dashboard");
   }
 }

plugins/plugin-manager

@@ -1 +1 @@
-Subproject commit 828d666bbb4aae1a2c348a12d7855ec5db3be46f
+Subproject commit 2933add62ecf2cbfc28cfe2cff81ff0e0eecc913