public void perform() {
    final RunContentDescriptor contentDescriptor = getContentDescriptor();
    if (contentDescriptor == null) {
      return;
    }
    final boolean removedOk = RunContentManager.getInstance(myProject).removeRunContent(getExecutor(), contentDescriptor);
    if (removedOk) {
      myContentDescriptor = null;
      myExecutor = null;
    }
  }
public void perform()