Return-Path: X-Original-To: apmail-jackrabbit-dev-archive@www.apache.org Delivered-To: apmail-jackrabbit-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 436F5EAF8 for ; Wed, 13 Feb 2013 12:08:14 +0000 (UTC) Received: (qmail 68154 invoked by uid 500); 13 Feb 2013 12:08:13 -0000 Delivered-To: apmail-jackrabbit-dev-archive@jackrabbit.apache.org Received: (qmail 67927 invoked by uid 500); 13 Feb 2013 12:08:13 -0000 Mailing-List: contact dev-help@jackrabbit.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@jackrabbit.apache.org Delivered-To: mailing list dev@jackrabbit.apache.org Received: (qmail 67907 invoked by uid 99); 13 Feb 2013 12:08:12 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Feb 2013 12:08:12 +0000 Date: Wed, 13 Feb 2013 12:08:12 +0000 (UTC) From: "Chetan Mehrotra (JIRA)" To: dev@jackrabbit.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (JCR-3521) IllegalArgumentException thrown on a box running java7 with a sorted query MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/JCR-3521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13577511#comment-13577511 ] Chetan Mehrotra commented on JCR-3521: -------------------------------------- The issue happens on JDK 7 due to more stringent check for Comparable contract [1]. To workaround this issue you can pass -Djava.util.Arrays.useLegacyMergeSort=true. The issue occurs org.apache.jackrabbit.core.query.lucene.Util#compare(Value[] a, Value[] b) [2] method does not return 0 when both arguments are null.This breaks the transitive nature of the comparable contract [1] http://dertompson.com/2012/11/23/sort-algorithm-changes-in-java-7/ [2] https://github.com/apache/jackrabbit/blob/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/Util.java#L259 > 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 > > 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) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira