[AMQ-2021] durable subscriber gets stuck while using persistent delivery mode and client acknowledgment with session.recover().

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 5.2.0
• Fix Version/s: 5.3.0

Environment

WinXP,
java version "1.6.0_05"
Java(TM) SE Runtime Environment (build 1.6.0_05-b13)
Java HotSpot(TM) Client VM (build 10.0-b19, mixed mode, sharing)

• Assignee: Gary Tully
• Reporter: Juraj Kuruc
• Created: 02/Dec/08 16:03
• Updated: 31/Jul/13 15:51
• Resolved: 23/Dec/08 20:04

Description

Using two topic durable subscribers which consume every odd message and recover their session if message number is even one of the durable subscriper after couple hundred messages get stuck and java.lang.NullPointerException is shown on provider console.

Reproducing steps:
1. start amq server using default configuration.
2. run TopicRedeliver.
3. run TopicProducer.

Discovered during test of https://issues.apache.org/activemq/browse/AMQ-1797 .
See attached logs and java files.

Issue Links

• relates to: AMQ-3236 In the case of DLQ processing due to an exception from onMessage, provide the exception string as a message property