Fixes are available
APAR status
Closed as program error.
Error description
A WebSphere MQ (WMQ) V7 JMS application using an asynchronous session which subscribes to a durable topic receives a few messages, then closes using the JMS message consumer consumer.close(). The application then subscribes again using empty selector string (""). This fails with error: error: com.ibm.msg.client.jms.DetailedJMSException: JMSWMQ0026: Failed to subscribe to topic 'A_TOPIC' using MQSUB. Error message JMSWMQ0025 Failed to unsubscribe from topic 'A_TOPIC' using MQCLOSE
Local fix
Problem summary
**************************************************************** USERS AFFECTED: This issue affects users of the WebSphere MQ v7 classes for Java Message Service (JMS) that use durable subscribers with message selectors. Platforms affected: All Distributed (iSeries, all Unix and Windows) +Java **************************************************************** PROBLEM SUMMARY: The problem occurred while using the empty string as the message selector. The MQ JMS Client did not treat an empty string as equivalent to null in the case of a durable subscription.
Problem conclusion
The fix ensures that the empty string and "null" are treated equivalent in case of durable subscriptions. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: v7.0 Platform Fix Pack 7.0.1.4 -------- -------------------- Windows U200323 AIX U835793 HP-UX (PA-RISC) U836458 HP-UX (Itanium) U836463 Solaris (SPARC) U836459 Solaris (x86-64) U836465 iSeries tbc_p700_0_1_4 Linux (x86) U836460 Linux (x86-64) U836464 Linux (zSeries) U836461 Linux (Power) U836462 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available, information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IC70664
Reported component name
WMQ WINDOWS V7
Reported component ID
5724H7220
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-08-19
Closed date
2010-08-31
Last modified date
2010-08-31
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WMQ WINDOWS V7
Fixed component ID
5724H7220
Applicable component levels
R700 PSY
UP
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Document Information
Modified date:
31 March 2023