@Override
  public void setShowStacks(boolean showStacks) {
    ambariErrorHandler.setShowStacks(showStacks);
    webAppErrorHandler.setShowStacks(showStacks);
  }
Wraps the given ErrorHandler to log the error stacks
ambari-server/src/main/java/org/apache/ambari/server/api/AmbariViewErrorHandlerProxy.java