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From "Gregory Shimansky (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5145) [drlvm][gc] intermittent NPE in annotation tests
Date Thu, 29 Nov 2007 15:26:43 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12546763
] 

Gregory Shimansky commented on HARMONY-5145:
--------------------------------------------

Hmm the fail reproduced only once and is gone then. I made a small modification in the assertion
to better understand the output at 599486.

> [drlvm][gc] intermittent NPE in annotation tests
> ------------------------------------------------
>
>                 Key: HARMONY-5145
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5145
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: Windows, Linux (x86_64 only ?)
>            Reporter: Alexey Varlamov
>
> Kernel tests fail intermittently with NPE, the top of stacktrace is always the same:
> java.lang.NullPointerException   
>  at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:200)   
>  at org.apache.harmony.lang.annotation.AnnotationFactory.createAnnotation(AnnotationFactory.java:101)
  
> Brief review of j.l.reflect.Proxy code shows that possible reason of failure are nullified
WeakReferences to proxy classes in interfaceCache. 

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