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