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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] Closed: (JCR-214) NullPointerException in LuceneQueryBuilder
Date Mon, 12 Sep 2005 12:50:31 GMT
     [ http://issues.apache.org/jira/browse/JCR-214?page=all ]
     
Marcel Reutegger closed JCR-214:
--------------------------------


Thanks for reporting this issue.

> NullPointerException in LuceneQueryBuilder
> ------------------------------------------
>
>          Key: JCR-214
>          URL: http://issues.apache.org/jira/browse/JCR-214
>      Project: Jackrabbit
>         Type: Bug
>   Components: core
>  Environment: Gentoo Linux, Java JDK 5 1.5.04, Xalan 2.7.0
>     Reporter: Thomas Scheffler
>     Assignee: Marcel Reutegger

>
> after setting up the following query:
> //mycoreclass[@ID= 'ArchNachl_class_003']//label[@* = 'A']
> I get a NullPointerException:
> java.lang.NullPointerException
>         at org.apache.jackrabbit.core.query.lucene.LuceneQueryBuilder.visit(LuceneQueryBuilder.java:553)
>         at org.apache.jackrabbit.core.query.RelationQueryNode.accept(RelationQueryNode.java:157)
>         at org.apache.jackrabbit.core.query.NAryQueryNode.acceptOperands(NAryQueryNode.java:131)
>         at org.apache.jackrabbit.core.query.lucene.LuceneQueryBuilder.visit(LuceneQueryBuilder.java:421)
>         at org.apache.jackrabbit.core.query.LocationStepQueryNode.accept(LocationStepQueryNode.java:156)
>         at org.apache.jackrabbit.core.query.lucene.LuceneQueryBuilder.visit(LuceneQueryBuilder.java:400)
>         at org.apache.jackrabbit.core.query.PathQueryNode.accept(PathQueryNode.java:47)
>         at org.apache.jackrabbit.core.query.lucene.LuceneQueryBuilder.visit(LuceneQueryBuilder.java:200)
>         at org.apache.jackrabbit.core.query.QueryRootNode.accept(QueryRootNode.java:112)
>         at org.apache.jackrabbit.core.query.lucene.LuceneQueryBuilder.createLuceneQuery(LuceneQueryBuilder.java:190)
>         at org.apache.jackrabbit.core.query.lucene.LuceneQueryBuilder.createQuery(LuceneQueryBuilder.java:172)
>         at org.apache.jackrabbit.core.query.lucene.QueryImpl.execute(QueryImpl.java:152)
>         at org.apache.jackrabbit.core.query.QueryImpl.execute(QueryImpl.java:132)
> I don't really know if it's a valid query. I should search for every label that has a
property value (what ever name the property may have) that is  somewhere under a specific
"mycoreclass" node. Either way Jackrabbit should of cause not exit with a NullPointerExeption
here.
> I'm using the very current svn snapshot of jackrabbit. For the records line 550-557 of
LuceneQueryBuilder.java look like this now:
>         String field = "";
>         try {
>             field = node.getProperty().toJCRName(nsMappings);
>         } catch (NoPrefixDeclaredException e) {
>             // should never happen
>             exceptions.add(e);
>         }

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