[jira] [Commented] (ARIES-1454) NPE in TxInterceptor

["Christian Schneider (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARIES-1454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15013424#comment-15013424 ] 

Christian Schneider commented on ARIES-1454:
--------------------------------------------

I am not fully sure why this happens but I think we should catch or avoid the exception. I have just committed a fix on trunk.

> NPE in TxInterceptor
> --------------------
>
>                 Key: ARIES-1454
>                 URL: https://issues.apache.org/jira/browse/ARIES-1454
>             Project: Aries
>          Issue Type: Bug
>          Components: Transaction
>    Affects Versions: transaction-blueprint-1.1.1
>         Environment: Karaf 4.0.2 (Felix)
> JPA (Hibernate)
>            Reporter: Mohammad Shamsi
>             Fix For: transaction-3.0.0
>
>
> I am running some load tests agains an osgi app, which is running inside karaf 4.0.2, using Aries Blueprint and JPA (Hibernate) .
> The test is using multiple threads (10) to issue  some random calls to the application. 
> Sometimes, randomly, some of the call throwing NPE in TxInterceptor: 
> {code:java}
> java.lang.NullPointerException
>         at org.apache.aries.transaction.TxInterceptorImpl.postCallWithReturn(TxInterceptorImpl.java:101)[66:org.apache.aries.transaction.blueprint:1.1.1]
>         at org.apache.aries.blueprint.proxy.SingleInterceptorCollaborator.postInvoke(SingleInterceptorCollaborator.java:75)[48:org.apache.aries.blueprint.core:1.4.4]
>         at Proxy65968de8_a064_4203_9a53_5f0c8e536279.lockAll(Unknown Source)[:]
> {code}
> The NPE is thrown from "postCallWithReturn" and "postCallWithException" in following line:
> {code:java}
>  token.getCoordination().end();
> {code}
> The "getCoordination()"  call in above line is returning null. 
> As I mentioned, it is happening from time to time. sometimes after 20 mins, sometimes after hours of test execution and it is happening in different transactional methods in different classes of the application. 



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