Keith Wall created QPID-7582:
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Summary: Auto unboxing null from Discharge#getFail() cause NPEs
Key: QPID-7582
URL: https://issues.apache.org/jira/browse/QPID-7582
Project: Qpid
Issue Type: Bug
Components: Java Broker
Reporter: Keith Wall
Fix For: qpid-java-7.0.0
As highlighted by a NPE from TxnCoordinatorReceivingLink_1_0#discharge:151, the
AMQP 1.0 protocol layer assumes that {{Discharge#fail}} is never returns null.
The code un-autoboxes the object back to its primitive. The spec allows it
to be, so a NPE will results in this situation.
We need to check all the implementation classes that back AMQP performative.
For any field marked as optional which is of a type subject to auto-box,
defensive code must be added.
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