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https://issues.apache.org/jira/browse/XMLBEANS-328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cezar Andrei updated XMLBEANS-328:
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Pasi, it seems that you are the first to find this problem. Please make sure
you don't use XMLOptions.setUnsynchronized(), so that XmlBeans can take care of
the synchronization. Assuming there is a bug, it is very had to find it without
reproducing it and having only the two stack traces you're attached.
To help us finding the bug, we need to make sure what revision number are your
sources at and that you don't have any changes, the full stack traces, plus the
smallest XMLBeans user code that reproduces the problem.
> Problems in multi-processor environment
> ---------------------------------------
>
> Key: XMLBEANS-328
> URL: https://issues.apache.org/jira/browse/XMLBEANS-328
> Project: XMLBeans
> Issue Type: Bug
> Affects Versions: Version 2.2, Version 2.2.1
> Environment: At least Win XP and Linux 2.6 with Sun JRE. Intel
> multi-core processor.
> Reporter: Pasi Lehtimaki
> Priority: Critical
>
> Running a strongly threadded Eclipse application using xmlbeans in
> multi-processor (/multi-core) computer causes frequent crashes in xmlbeans
> code.
> Most of the crases happen in Cur.java in form of a NPE:
> ***************************************************
> java.lang.NullPointerException
> at org.apache.xmlbeans.impl.store.Cur.listRemove(Cur.java:2783)
> at org.apache.xmlbeans.impl.store.Locale.getCur(Locale.java:2775)
> at org.apache.xmlbeans.impl.store.Locale.tempCur(Locale.java:2736)
> at org.apache.xmlbeans.impl.store.Locale.tempCur(Locale.java:2731)
> at org.apache.xmlbeans.impl.store.Xobj.tempCur(Xobj.java:348)
> at org.apache.xmlbeans.impl.store.Xobj.new_cursor(Xobj.java:1810)
> at
> org.apache.xmlbeans.impl.values.XmlObjectBase.newCursor(XmlObjectBase.java:250)
> at
> org.apache.xmlbeans.impl.values.XmlObjectBase.selectPath(XmlObjectBase.java:424)
> at
> org.apache.xmlbeans.impl.values.XmlObjectBase.selectPath(XmlObjectBase.java:415)
> ***************************************************
> In some cases the crash happens in Locale.exit():
> ***************************************************
> Exception occurred: java.lang.ArrayIndexOutOfBoundsException: -1
> at
> org.apache.xmlbeans.impl.store.Locale.exit(Locale.java:2840)
> ***************************************************
> This problem problem occurs in xmlbeans 2.2. and in the latest version in
> SVN. The problem disappears when I turn the multi-core support off from BIOS
> and reappears again immediently when I turn it back on. So I believe that
> this has something to do with threading. Only classes Locale.java and
> Cur.java seem to be affected. I haven't encountered any exceptions from other
> classes.
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