Eclipse平台开发IDE的一个小问题

错误信息如下:
'Asynchronous viewer input update' has encountered a problem.
An internal error has occurred.

点击Show Error无异常堆栈,而且该问题无法重现.
去查看源码发现异常复杂,所以想问下大家有没有好的思路?


部分源码:
protected WorkbenchJob fViewerInputUpdateJob = new WorkbenchJob("Asynchronous viewer input update") {
public IStatus runInUIThread(IProgressMonitor monitor) {
fRequestor.viewerInputComplete(ViewerInputUpdate.this);
return Status.OK_STATUS;
}
};