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https://issues.apache.org/jira/browse/JENA-597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13835127#comment-13835127
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Hudson commented on JENA-597:
-----------------------------
ABORTED: Integrated in Jena_Development_Test #1053 (See
[https://builds.apache.org/job/Jena_Development_Test/1053/])
JENA-597 Sync wrapper for the global resolver. (andy: rev 1546406)
*
/jena/trunk/jena-arq/src/main/java/org/apache/jena/riot/system/IRIResolver.java
> IRIResolverNormal needs thread safe CacheLRU
> --------------------------------------------
>
> Key: JENA-597
> URL: https://issues.apache.org/jira/browse/JENA-597
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ
> Affects Versions: Jena 2.11.0
> Environment: IBM Websphere 8 JRE
> Reporter: Scott Patterson
> Assignee: Andy Seaborne
> Fix For: Jena 2.11.1
>
> Attachments: IRIResolverTest.java, JENA-597-1.patch, JENA-597-2.patch
>
>
> The following exception may occur when more than one thread requires access
> to the org.apache.jena.atlas.lib.cache.CacheLRU embedded in IRIResolverNormal:
> Caused by: java.lang.NullPointerException
> at java.util.LinkedHashMap.get(LinkedHashMap.java:339)
> at org.apache.jena.atlas.lib.cache.CacheLRU.get(CacheLRU.java:53)
> at
> org.apache.jena.riot.system.IRIResolver$IRIResolverNormal.resolveSilent(IRIResolver.java:427)
> at
> org.apache.jena.riot.system.IRIResolver$IRIResolverNormal.<init>(IRIResolver.java:383)
> at org.apache.jena.riot.system.IRIResolver.create(IRIResolver.java:210)
> at org.apache.jena.riot.system.RiotLib.profile(RiotLib.java:141)
> at org.apache.jena.riot.system.RiotLib.profile(RiotLib.java:130)
> at org.apache.jena.riot.lang.LangRDFXML.<init>(LangRDFXML.java:104)
> at org.apache.jena.riot.lang.LangRDFXML.create(LangRDFXML.java:74)
> at org.apache.jena.riot.RiotReader.createParser(RiotReader.java:128)
> at
> org.apache.jena.riot.RDFParserRegistry$ReaderRIOTFactoryImpl$1.read(RDFParserRegistry.java:141)
> at org.apache.jena.riot.RDFDataMgr.process(RDFDataMgr.java:818)
> at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:258)
> at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:244)
> at
> org.apache.jena.riot.adapters.RDFReaderRIOT.read(RDFReaderRIOT.java:69)
> at com.ibm.team.jis.lqe.resource.RDFEntity.getModel(RDFEntity.java:361)
> ... 39 more
> This may be related to the problem reported that is suppose to be fixed by
> the cloned issue. It looks to be the same stack trace. I've attached a test
> to reproduce. Works with Oracle Oracle JRE 1.6.0.27 but not IBM jre. Keep
> stopping and restarting the test until the NPE happens. NPE usually happens
> right off the start.
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