[drlvm] If method throws exception after monitorenter, JIT does not release the lock

[Shipilov, Alexander D]

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   
           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