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Posted to dev@xmlbeans.apache.org by "Philippe Marsteau (JIRA)" <xm...@xml.apache.org> on 2010/12/01 18:43:23 UTC

[jira] Commented: (XMLBEANS-328) Problems in multi-processor environment

    [ https://issues.apache.org/jira/browse/XMLBEANS-328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965760#action_12965760 ] 

Philippe Marsteau commented on XMLBEANS-328:
--------------------------------------------

Is the patch part of the latest XBean release? We experience same issue with xbean-2.2.0a.jar and wish to know if it would be wiser to upgrade to latest version or to patch existing one (using 2.2.0 patch).
Thanks for following-up to any who had this issue and got it fixed using either latest release or published patch.

> 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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