为什么 RAD 在调试模式下跳转到 Object.wait 调用？
如果我使用 Rapid Application Developer 在“调试”模式下启动 WebSphere 7 Portal 服务器，线程将被挂起，RAD 会要求我切换到调试模式。然后我可以在调试视图中看到例如以下堆栈跟踪：
Daemon Thread [wpsDefaultWorkManager.Alarm Pool : 1] (Suspended)
Object.wait(long, int) line: not available [native method]
Object.wait(long) line: 196
<unknown receiving type>(BoundedBuffer).waitGet_(long) line: 187
BoundedBuffer.take() line: 549
ThreadPool.getTask(boolean) line: 865
ThreadPool$Worker.run() line: 1557
或者这个：
Daemon Thread [WorkManager.PortalSearchIndexWorkManager : 1] (Suspended)
<unknown receiving type>(Object).wait(long, int) line: not available [native method]
<unknown receiving type>(Object).wait(long) line: 196
<unknown receiving type>(BoundedBuffer).waitGet_(long) line: 187
<unknown receiving type>(BoundedBuffer).take() line: 549
<unknown receiving type>(ThreadPool).getTask(boolean) line: 865
<unknown receiving type>(ThreadPool$Worker).run() line: 1557
然后我可以恢复执行，一切看起来都很好，但为什么 RAD 会跳转到那里，就好像我设置了断点一样？
If I start up my WebSphere 7 Portal Sever in "Debug" using the Rapid Application Developer, threads are suspended, RAD asks me to switch to debug mode. Then I can see in the debug view for example the following stack trace:
Daemon Thread [wpsDefaultWorkManager.Alarm Pool : 1] (Suspended)
Object.wait(long, int) line: not available [native method]
Object.wait(long) line: 196
<unknown receiving type>(BoundedBuffer).waitGet_(long) line: 187
BoundedBuffer.take() line: 549
ThreadPool.getTask(boolean) line: 865
ThreadPool$Worker.run() line: 1557
Or this one:
Daemon Thread [WorkManager.PortalSearchIndexWorkManager : 1] (Suspended)
<unknown receiving type>(Object).wait(long, int) line: not available [native method]
<unknown receiving type>(Object).wait(long) line: 196
<unknown receiving type>(BoundedBuffer).waitGet_(long) line: 187
<unknown receiving type>(BoundedBuffer).take() line: 549
<unknown receiving type>(ThreadPool).getTask(boolean) line: 865
<unknown receiving type>(ThreadPool$Worker).run() line: 1557
I can then just resume execution and everything seems fine, but why does RAD jump in there as if I had set a breakpoint?
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希望您的代码中没有断点，或者在发生异常时您给出的断点。如果情况并非如此。
试试这个
可能是因为存在未捕获的异常，并且您可能已启用 RAD 选项以在异常时挂起。
在RAD
转到Windows>首选项>Java>调试，取消选中“在未捕获的异常上暂停执行”选项，
然后尝试启动服务器。
Hope there are no breakpoints from your code or breakpoints that you gave when some exception happens.If that is not the case.
Try this
Might be because there is an uncaught exception and you might have enabled the RAD option to suspend on exception.
In RAD
Go to Windows>Preference>Java>Debug ,uncheck the option "Suspend execution on uncaught exceptions"
Try starting the server after that .