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 Post subject: NRTWorkspaceImpl - NullPointerException - oldReader is null
PostPosted: Thu Dec 22, 2011 3:28 am 
Newbie

Joined: Mon Dec 19, 2011 5:44 am
Posts: 3
Hi Hibernate Search Team!!!!

I just upgraded to Hibernate Search 4.0.0.Final and started working (at least tried :)) with the NRTIndexManager.

My application first phase is creation of demo database (indexing is done before reading)

At this phase I get exception with the following call stack:

java.lang.NullPointerException
at org.hibernate.search.backend.impl.lucene.NRTWorkspaceImpl.afterTransactionApplied(NRTWorkspaceImpl.java:84)
at org.hibernate.search.backend.impl.lucene.LuceneBackendQueueTask.applyUpdates(LuceneBackendQueueTask.java:141)
at org.hibernate.search.backend.impl.lucene.LuceneBackendQueueTask.run(LuceneBackendQueueTask.java:69)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

With debugger, I see that the oldReader is indeed null, so trying to close him throws the exception.

I guess the oldReader may be null if I write to the index before any reading...

Can you assist me with this one?
Thanks!


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 Post subject: Re: NRTWorkspaceImpl - NullPointerException - oldReader is null
PostPosted: Wed Jan 11, 2012 6:58 am 
Hibernate Team
Hibernate Team

Joined: Thu Apr 05, 2007 5:52 am
Posts: 1689
Location: Sweden
Sounds like a bug. Do you mind opening a Jira issue in https://hibernate.onjira.com/browse/HSEARCH? Maybe you could provide a test case as well.

--Hardy


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