[jira] [Commented] (THRIFT-3140) ConcurrentModificationException is thrown by JavaScript test server

["Nobuaki Sukegawa (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/THRIFT-3140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14537251#comment-14537251 ] 

Nobuaki Sukegawa commented on THRIFT-3140:
------------------------------------------

https://github.com/apache/thrift/pull/487

> ConcurrentModificationException is thrown by JavaScript test server
> -------------------------------------------------------------------
>
>                 Key: THRIFT-3140
>                 URL: https://issues.apache.org/jira/browse/THRIFT-3140
>             Project: Thrift
>          Issue Type: Bug
>          Components: Build Process, JavaScript - Library
>            Reporter: Nobuaki Sukegawa
>            Priority: Minor
>
> After running *make check* for JS or *ant test* in {{lib/js/test}}, you can always find several ConcurrentModificationException stack traces in {{lib/js/test/build/log/unittest.log}}.
> I don't know if it's even a bug since it does not cause any test failures.
> It distracted me from solving real cause of failures for a while through.
> Cause:
> Threading issue.
> Synchronization is needed because all instances of MimeUtil2 seems to share single state.
> http://sourceforge.net/p/mime-util/bugs/33/



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