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https://issues.apache.org/jira/browse/JCR-3521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13579104#comment-13579104
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Unico Hommes commented on JCR-3521:
-----------------------------------
Backported to 2.6 branch in revision 1446513.
> IllegalArgumentException thrown on a box running java7 with a sorted query
> --------------------------------------------------------------------------
>
> Key: JCR-3521
> URL: https://issues.apache.org/jira/browse/JCR-3521
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Components: indexing
> Affects Versions: 2.5.3
> Environment: JDK 7
> Reporter: Chetan Mehrotra
> Attachments: JCR-3521-2.patch, JCR-3521.patch
>
>
> Today we were running into this nice exception on a box running java7 with a
> sorted query (by lastModified DESC):
> java.lang.IllegalArgumentException: Comparison method violates its general
> contract!
> at java.util.TimSort.mergeHi(TimSort.java:868)
> at java.util.TimSort.mergeAt(TimSort.java:485)
> at java.util.TimSort.mergeForceCollapse(TimSort.java:426)
> at java.util.TimSort.sort(TimSort.java:223)
> at java.util.TimSort.sort(TimSort.java:173)
> at java.util.Arrays.sort(Arrays.java:659)
> at java.util.Collections.sort(Collections.java:217)
> at
> org.apache.jackrabbit.core.query.lucene.join.QueryEngine.sort(QueryEngine.j
> ava:625)
> at
> org.apache.jackrabbit.core.query.lucene.join.QueryEngine.execute(QueryEngin
> e.java:484)
> at
> org.apache.jackrabbit.core.query.lucene.join.QueryEngine.execute(QueryEngin
> e.java:126)
> at
> org.apache.jackrabbit.core.query.lucene.join.QueryEngine.execute(QueryEngin
> e.java:115)
> at
> org.apache.jackrabbit.core.query.QueryObjectModelImpl$2.perform(QueryObject
> ModelImpl.java:129)
> at
> org.apache.jackrabbit.core.query.QueryObjectModelImpl$2.perform(QueryObject
> ModelImpl.java:124)
> at
> org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:2
> 16)
> at
> org.apache.jackrabbit.core.query.QueryObjectModelImpl.execute(QueryObjectMo
> delImpl.java:123)
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