[gatein-issues] [JBoss JIRA] (GTNPORTAL-3387) Workaround - POMSessionManager: Unexpected error when clearing pom cache: java.lang.NullPointerException

[Lucas Ponce (JIRA)]

    [ https://issues.jboss.org/browse/GTNPORTAL-3387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12938876#comment-12938876 ] 

Lucas Ponce commented on GTNPORTAL-3387:
----------------------------------------

Root cause is defined in:

https://jira.exoplatform.org/browse/KER-276

But a valid workaround can be:

if (cache.getCacheSize() > 0)

at POMSessionManager.

This workaround only is valid for 3.6.x branch as 2.4.8.GA is not release yet.

Once 2.4.8.GA is out, this workaround can be reverted as original issue is defined on exo.kernel.component.ext.cache.impl.jboss.v3-2.4.6-GA.jar component.
                
> Workaround - POMSessionManager: Unexpected error when clearing pom cache: java.lang.NullPointerException
> --------------------------------------------------------------------------------------------------------
>
>                 Key: GTNPORTAL-3387
>                 URL: https://issues.jboss.org/browse/GTNPORTAL-3387
>             Project: GateIn Portal
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 3.6.3.Final
>            Reporter: Lucas Ponce
>            Assignee: Lucas Ponce
>             Fix For: 3.6.4.Final
>
>
> Description of problem:
> When starting portal in cluster mode I can see errors like this in the log:
> ERROR [org.exoplatform.portal.pom.config.POMSessionManager] (MSC service thread 1-5) Unexpected error when clearing pom cache: java.lang.NullPointerException
> 	at org.exoplatform.services.cache.impl.jboss.AbstractExoCache.select(AbstractExoCache.java:343)
>   ...
> Steps to Reproduce:
> 1. start portal in cluster mode:
>  a) start H2 DB:
> java -jar ./modules/system/layers/base/com/h2database/h2/main/h2-1.3.168-redhat-2.jar -tcp -web -pg
>  b) start portal: 
> ./standalone -c standalone-ha.xml -Djboss.node.name=node1 -u 239.23.42.2
> Additional info:
> JDK 1.7.0_17 and 1.7.0_25

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