Hi David,

On 12/6/17 18:47, David Holmes wrote:
Hi Chris,

On 7/12/2017 8:38 AM, Chris Plummer wrote:
Hello,

Please review the following:

https://bugs.openjdk.java.net/browse/JDK-8191229
http://cr.openjdk.java.net/~cjplummer/8191229/webrev.00/

I expected to see the initialization done in JNI_OnLoad, not in a new init() method.

I see no point to initialize it specifically in the JNI_OnLoad except for a simplicity.
We just need the testClass set before the locks in the test class are used.
But I see no problem in either case. :)

Thanks,
Serguei


David
-----

The test is testing contended monitor support. After registering the callback, it gets an unexpected notification of a contended monitor, which is happening while the finalizer thread is running. In the callback the test does a FindClass to find a test class, but the classloader context is not correct when the finalizer thread is current, so FindClass fails and leaves an exception pending (probably blowing away the finalzer thread) and also (separately) causes the test to fail. It's unknown why this callback is suddenly being triggered, but the callback itself is not a bug, and the test needs to defend against it.

The fix is to lookup the test class during test initialization and keep it cached, rather than look it up every time there is a contended monitor callback.

thanks,

Chris

Reply via email to