future.get returning before finally executed in Callable on cancel

I'm have a test that is failing intermittently where a future.get call is returning before the finally block is executed in the Callable, when the future is canceled. Here's the basic workflow:

future.cancel(true);

I see the InterrupedException thrown in the Callable

The main thread catches CancellationException from the future.get call

Now the Callable calls finally.

The test is always succ开发者_开发知识库essful on my notebook and fails most of the time on our build server. Both my notebook and the build server are running OpenJDK 1.7. Any ideas?

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The documentation of cancel() doesn't seem to specify that it waits for the interrupted thread to exit. If you want that guarantee, you'll have to set up a monitor or some other synchronization mechanism whereby the canceler can wait for the processor to say "I'm done with my finally-block".