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Posted to commits@harmony.apache.org by "Alexey Varlamov (JIRA)" <ji...@apache.org> on 2007/01/23 13:51:49 UTC
[jira] Commented: (HARMONY-2504) [drlvm] If method throws exception
after monitorenter, JIT does not release the lock.
[ https://issues.apache.org/jira/browse/HARMONY-2504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12466733 ]
Alexey Varlamov commented on HARMONY-2504:
------------------------------------------
Alexander,
Could you please clarify why you expect IllegalMonitorStateException?
As for the deadlock, I believe it works as expected, see JVM specification paragraph 7.14, which hints that monitorexit should be guarded via try/finally block.
BTW, BEA's JRockit 1.5 behaves exactly as drlvm.
> [drlvm] If method throws exception after monitorenter, JIT does not release the lock.
> -------------------------------------------------------------------------------------
>
> Key: HARMONY-2504
> URL: https://issues.apache.org/jira/browse/HARMONY-2504
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: Intel x86 IA32, WinXP
> Reporter: Alexander D Shipilov
> Attachments: Harmony-2504test.zip
>
>
> Thread makes monitorenter, and throws exception (NPE) to the output.
> java.lang.IllegalMonitorStateException expected to appear at the output
> (because, according to the specification, the last exception should appear).
> Then other thread tries to get a lock.
> DRLVM hangs up. It's throws NPE instead of IllegalMonitorStateException and does not release the
> lock.
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