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Bug 193456

Summary:	[70cat] AssertionError at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl.loadIndexingContext
Product:	projects	Reporter:	stopd <stopd>
Component:	Maven	Assignee:	Antonin Nebuzelsky <anebuzelsky>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	aquaglia, asmotrich, ehsavoie, jsacha, lmorissette
Priority:	P3	Keywords:	THREAD
Version:	7.0
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	173427
Bug Depends on:
Bug Blocks:	190182
Attachments:	stacktrace

Description stopd 2010-12-15 18:46:35 UTC

Build: NetBeans IDE Dev (Build nbms-and-javadoc-6328-on-101215)
VM: Java HotSpot(TM) Client VM, 17.1-b03, Java(TM) SE Runtime Environment, 1.6.0_22-b04
OS: Windows 7

User Comments:
aquaglia: Opening Maven dependency details

lmorissette: occured while attempting to view dependency properties for xom

stopd: Checked out ant 1.7.1 sources from subversion and opened the project. Exception occured when I tried to open the maven dependency graph for the main project.

jsacha: ?




Stacktrace: 
java.lang.AssertionError
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl.loadIndexingContext(NexusRepositoryIndexerImpl.java:263)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl.access$400(NexusRepositoryIndexerImpl.java:161)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl$8.run(NexusRepositoryIndexerImpl.java:802)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl$8.run(NexusRepositoryIndexerImpl.java:800)
   at org.openide.util.Mutex.writeAccess(Mutex.java:436)
   at org.netbeans.modules.maven.indexer.NexusRepositoryIndexerImpl.getRecords(NexusRepositoryIndexerImpl.java:800)

Comment 1 stopd 2010-12-15 18:46:38 UTC

Created attachment 104133 [details]
stacktrace

Comment 2 Jesse Glick 2011-01-07 18:19:35 UTC

Looks like a regression caused by per-repo mutex? Not obvious how it could happen, but my guess is that getRepoMutex(String) should have been synchronized - perhaps there is a race condition whereby getRecords obtains one Mutex for a given repo, in parallel another thread calls getRepoMutex and stores its own Mutex there, and then loadIndexingContext is holding a lock on the wrong mutex.

Comment 3 Exceptions Reporter 2011-03-03 11:37:15 UTC

This bug already has 10 duplicates 
see http://statistics.netbeans.org/exceptions/detail.do?id=173427

Comment 4 Antonin Nebuzelsky 2011-03-07 14:58:16 UTC

Last build in the list of reports is 110214. Resolving as a dup of fixed issue 195541 which got integrated on 110218.

*** This bug has been marked as a duplicate of bug 195541 ***