private void removeBreakpointListeners() {
    Disposable breakpointListenerDisposable = myBreakpointListenerDisposable;
    if (breakpointListenerDisposable != null) {
      myBreakpointListenerDisposable = null;
      Disposer.dispose(breakpointListenerDisposable);
    }
  }
private void removeBreakpointListeners()