[AMQ-3782] FailoverTransport throws NPE

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.2.0
• Fix Version/s: 5.6.0
• Component/s: Transport

Environment

debian java-6-sun activemq 5.2

• Assignee: Timothy A. Bish
• Reporter: Wojciech Oczkowski
• Created: 21/Mar/12 14:58
• Updated: 22/Mar/12 21:01
• Resolved: 22/Mar/12 21:01

Description

Failover transport occasionally throws NullPointerException

INFO | jvm 1 | 2012/03/19 09:25:05 | Exception in thread "ActiveMQ Failover Worker: 2009192672" java.lang.NullPointerException
INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.transport.failover.FailoverTransport$2.iterate(FailoverTransport.java:125)
INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)

It seems like DedicatedTaskRunner starts Thread before FailoverTransport finish initializing reconnectTask field.

Same code is present in 5.5.1 so it's possible that same bug is out there