[jira] Commented: (HARMONY-5145) [drlvm][gc] intermittent NPE in annotation tests

["Alexey Varlamov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HARMONY-5145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12572366#action_12572366 ] 

Alexey Varlamov commented on HARMONY-5145:
------------------------------------------

СС reported the same failures on Win32 (r629320). This is the 1st time I've seen it on 32-bit...

> [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
>            Assignee: Xiao-Feng Li
>
> 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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