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List:       xmlbeans-dev
Subject:    [jira] Assigned: (XMLBEANS-328) Problems in multi-processor
From:       "Wing Yew Poon (JIRA)" <xmlbeans-dev () xml ! apache ! org>
Date:       2009-11-02 23:58:59
Message-ID: 2085891144.1257206339709.JavaMail.jira () brutus
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     [ https://issues.apache.org/jira/browse/XMLBEANS-328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel \
]

Wing Yew Poon reassigned XMLBEANS-328:
--------------------------------------

    Assignee: Radu Preotiuc-Pietro

> 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
> Assignee: Radu Preotiuc-Pietro
> Priority: Critical
> Attachments: patch-xmlbeans-2.2.0, patch-XMLBEANS328-2.4.0.patch, xbean.jar
> 
> 
> 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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