[ARTEMIS-102] NPE during shared store slave activation

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Assignee: Unassigned
• Reporter: Jeff Mesnil
• Created: 11/May/15 12:03
• Updated: 04/Jun/15 00:11
• Resolved: 04/Jun/15 00:11

Description

Use case:

• start a shared-store-master server with failover-on-server-shutdown=true
• start a shared-store-slave server with scale-down enabled=false (scaleDownPolicy is not null though)
• stop the master server, a NPE occurs during the slave activation:

13:34:01,561 ERROR [org.apache.activemq.artemis.core.server] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=44846429-f7d1-11e4-a3b3-f15b1ddcb38d) AMQ224000: Failure in initialisation: java.lang.NullPointerException
        at org.apache.activemq.artemis.core.server.impl.BackupRecoveryJournalLoader.postLoad(BackupRecoveryJournalLoader.java:93)
        at org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager.loadMessageJournal(JournalStorageManager.java:1947)
        at org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.loadJournals(ActiveMQServerImpl.java:1977)
        at org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.initialisePart2(ActiveMQServerImpl.java:1840)
        at org.apache.activemq.artemis.core.server.impl.SharedStoreBackupActivation.run(SharedStoreBackupActivation.java:88)
        at java.lang.Thread.run(Thread.java:745)

The NPE is caused by the slave's parentServer which is null.