Vadim Pesochinskiy created AMQ-4207:
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Summary: NullPointerException in ActiveMQSession.rollback()
Key: AMQ-4207
URL: https://issues.apache.org/jira/browse/AMQ-4207
Project: ActiveMQ
Issue Type: Bug
Components: JMS client
Affects Versions: 5.7.0, 5.6.0, 5.5.1
Reporter: Vadim Pesochinskiy
Priority: Minor
Fix For: 5.8.0
Sometimes we get this exception:
java.lang.NullPointerException
at org.apache.activemq.ActiveMQSession.rollback(ActiveMQSession.java:581)
at
com.barra.cp.common.activemq.MultiQueueReceiver.rollback(MultiQueueReceiver.java:212)
at
com.barra.cp.common.activemq.MultiQueueReceiver.onMessage(MultiQueueReceiver.java:185)
The synchronized dispose() method nulls the transactionContext and sets closed
to true. In many places in the code, not synchronized code checks closed member
variable and later references transactionContext, which can become null by that
time.
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