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https://issues.apache.org/jira/browse/XMLBEANS-328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927264#action_12927264
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Craig Garrett commented on XMLBEANS-328:
----------------------------------------
I am running into this same issue in XMLBeans 2.5, and it only happens when we
have several threads processing with XMLBeans at the same time. Radu, could you
please provide a patch for XMLBeans 2.5? I may have to try backing out to
XMLBeans 2.4 so I can use the patch that you posted in Dec 2008. Thanks!
Here's some of the stack traces (we're using Sun JVM 1.6, 64-bit on 64-bit
Windows Server 2003, running under Tomcat):
java.lang.NullPointerException
at org.apache.xmlbeans.impl.store.Cur.listRemove(Cur.java:2788)
at org.apache.xmlbeans.impl.store.Cur.release(Cur.java:2734)
at org.apache.xmlbeans.impl.store.Xobj.copy(Xobj.java:2398)
at
org.apache.xmlbeans.impl.values.XmlObjectBase._copy(XmlObjectBase.java:158)
at
org.apache.xmlbeans.impl.values.XmlObjectBase._copy(XmlObjectBase.java:141)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.copy(XmlObjectBase.java:122)
java.lang.ArrayIndexOutOfBoundsException: -1
at org.apache.xmlbeans.impl.store.Cur$Locations.remove(Cur.java:648)
at org.apache.xmlbeans.impl.store.Cur$Locations.remove(Cur.java:571)
at org.apache.xmlbeans.impl.store.Cur.pop(Cur.java:772)
at
org.apache.xmlbeans.impl.store.Locale.getAllNamespaces(Locale.java:2341)
at
org.apache.xmlbeans.impl.store.Xobj.copy_contents_from(Xobj.java:2307)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.setterHelper(XmlObjectBase.java:1984)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.set(XmlObjectBase.java:2062)
java.lang.ArrayIndexOutOfBoundsException: -1
at org.apache.xmlbeans.impl.store.Locale.exit(Locale.java:2889)
at org.apache.xmlbeans.impl.store.Xobj.validate(Xobj.java:1877)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.validate(XmlObjectBase.java:375)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.validate(XmlObjectBase.java:346)
java.lang.ArrayIndexOutOfBoundsException: -1
at org.apache.xmlbeans.impl.store.Locale.exit(Locale.java:2889)
at org.apache.xmlbeans.impl.store.Xobj.invalidate_text(Xobj.java:1796)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.set_commit(XmlObjectBase.java:1345)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.setEnumValue(XmlObjectBase.java:1692)
java.lang.ArrayIndexOutOfBoundsException: -1
at org.apache.xmlbeans.impl.store.Locale.exit(Locale.java:2889)
at org.apache.xmlbeans.impl.store.Xobj.fetch_text(Xobj.java:1812)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.get_wscanon_text(XmlObjectBase.java:1366)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.check_dated(XmlObjectBase.java:1303)
at
org.apache.xmlbeans.impl.values.JavaStringEnumerationHolderEx.getEnumValue(JavaStringEnumerationHolderEx.java:60)
> 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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