[jira] Commented: (MINDEXER-26) NPE from IndexWriter.isLocked in DefaultIndexingContext.prepareCleanIndex

["Jesse Glick (JIRA)" <ji...@codehaus.org>]

    [ http://jira.codehaus.org/browse/MINDEXER-26?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=268241#action_268241 ] 

Jesse Glick commented on MINDEXER-26:
-------------------------------------

http://statistics.netbeans.org/exceptions/exception.do?id=509289 shows an apparently similar NPE - {{indexDirectory}} null in {{DefaultIndexingContext.deleteIndexFiles}} - which is not inside the constructor.

> NPE from IndexWriter.isLocked in DefaultIndexingContext.prepareCleanIndex
> -------------------------------------------------------------------------
>
>                 Key: MINDEXER-26
>                 URL: http://jira.codehaus.org/browse/MINDEXER-26
>             Project: Maven Indexer
>          Issue Type: Bug
>    Affects Versions: 4.0.0
>         Environment: VM: Java HotSpot(TM) 64-Bit Server VM, 19.0-b09, Java(TM) SE Runtime
> Environment, 1.6.0_23-b05
> OS: Windows 7
>            Reporter: Jesse Glick
>
> http://netbeans.org/bugzilla/show_bug.cgi?id=197346 reported by a NetBeans user in a build embedding Maven Indexer 4.0.0.
> {noformat}
>             if ( IndexWriter.isLocked( indexDirectory ) )
>             {
>                 IndexWriter.unlock( indexDirectory );
>             }
> {noformat}
> Looks like {[indexDirectory}} is null, perhaps due to {{close}} having been called, and this code does not check for that (other code in the same class does). Can probably be guarded with a simple null check?

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