[jira] Closed: (HARMONY-4389) [drlvm][jvmti] Thread.isAlive() is false in THREAD_STRAT event callback

["Gregory Shimansky (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-4389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gregory Shimansky closed HARMONY-4389.
--------------------------------------


No response, assuming ok.

> [drlvm][jvmti] Thread.isAlive() is false in THREAD_STRAT event callback
> -----------------------------------------------------------------------
>
>                 Key: HARMONY-4389
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4389
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: Windows/x86, harmony-jdk-r553376
>            Reporter: Ivan Popov
>            Assignee: Gregory Shimansky
>         Attachments: 0001-Fix-of-isAlive-during-JVM-TI-THREAD_START-event-proc.patch, 0001-Fix-of-isAlive-during-JVM-TI-THREAD_START-event-proc.patch
>
>
> After applying patch HARMONY-2889 for JDWP agent the following JDWP stress tests:
>     org.apache.harmony.test.stress.jpda.jdwp.scenario.EVENT014.EventTest015
>     org.apache.harmony.test.stress.jpda.jdwp.scenario.EVENT014.EventTest016
> still hangs on Harmony and pass on RI. The problem is in different behavior of j.l.Thread.isAlive() while thread is suspended in THREAD_START callback. In RI isAlive()==true, in Harmony isAlive()==false.
> In these tests debuggee application starts tested thread, which generates THREAD_START events, and waits until isAlive()==true for this thread. Then it sends message to debugger and debugger handles THREAD_START events and resumes tested thread. With RI this works fine, but with Harmony isAlive() never returns true until thread is resumed in THREAD_START event, and test hangs.
> I doubt if there is any requirement in classlib or JVMTI specifications which would clarify this situation. However, it makes sense to follow RI's behavior. Otherwise, affected tests should be modified. 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.