1 files changed, 40 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/actions/AlreadyReportedActionExecutionException.java b/src/main/java/com/google/devtools/build/lib/actions/AlreadyReportedActionExecutionException.java
new file mode 100644
index 0000000000..4ce258b5b2
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/actions/AlreadyReportedActionExecutionException.java
@@ -0,0 +1,40 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.devtools.build.lib.actions;
+
+/**
+ * This wrapper exception is used as a marker class to already reported errors. Errors are reported
+ * at {@code AbstractBuilder.executeActionTask()} method in case of the builder not aborting in case
+ * of exceptions (For example keepgoing).
+ *
+ * <p>Then In upper levels we wrap catch the exception and throw a BuildFailedException
+ * unconditionally, that is caught and shown as error in AbstractBuildCommand (because the message
+ * of the exception is !=null).
+ *
+ * With this exception we detect that the error was already shown and we wrap it in a
+ * BuildFailedException without message.
+ */
+public class AlreadyReportedActionExecutionException extends ActionExecutionException {
+
+  public AlreadyReportedActionExecutionException(ActionExecutionException cause) {
+    super(cause.getMessage(), cause.getCause(), cause.getAction(), cause.getRootCauses(),
+        cause.isCatastrophe());
+  }
+
+  @Override
+  public boolean showError() {
+    return false;
+  }
+}