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Subject: [drlvm] If method throws exception after monitorenter,
 JIT does not release the lock
Date: Thu, 25 Jan 2007 18:20:23 +0300
Message-ID: <2A786EB15713B544AB79607529273B047FADE4@mssmsx411>
Thread-Topic: [drlvm] If method throws exception after monitorenter,
 JIT does not release the lock
Thread-Index: AcdAlFUGLIzwjWjyQaKsjU/kpjauIg==
From: "Shipilov, Alexander D" <alexander.d.shipilov@intel.com>
To: <dev@harmony.apache.org>

Hello, folks,

 Could you, please clarify one issue.
The problem has described in JIRA
https://issues.apache.org/jira/browse/HARMONY-2504.

 Thread makes monitorenter, and throws exception (NPE) to the output.
JASMIN code:
	.method public run()V
	   .limit stack 3
	   .limit locals 3

	   getstatic Test/testField Ljava/lang/Object;
	   monitorenter

	   new java/lang/NullPointerException
	   dup  =20
	   invokespecial java/lang/NullPointerException/<init>()V
	   athrow

	   getstatic Test/testField Ljava/lang/Object;
	   monitorexit

	   return
	.end method

 Then other thread tries to get a lock. Deadlock occurs on Harmony.
Does this behavior is correct?

Thanks,
Alexander Shipilov