private void activateMessageView() {
    synchronized (myMessageViewLock) {
      if (myErrorTreeView != null) {
        final ToolWindow tw = ToolWindowManager.getInstance(myProject).getToolWindow(ToolWindowId.MESSAGES_WINDOW);
        if (tw != null) {
          tw.activate(null, false);
        }
      }
    }
  }
private void activateMessageView()