output: #fixed code
                                  protected void callOnError(final ExecutionError error) {
          if (onError != null) {
              onError.call(error);
          }
          callOnTerminate((C) error.getContext());
      }
input: #vulnerable code 
                                  protected void callOnError(final ExecutionError error) {
          if (onError != null) {
              onError.call(error);
          }
  
          synchronized (error.getContext()) {
              callOnTerminate((C) error.getContext());
              error.getContext().notifyAll();
          }
      } 
                              #location 3 
                              #vulnerability type THREAD_SAFETY_VIOLATION