Fixes are available
APAR status
Closed as program error.
Error description
WebSphere MQ V7 Client connecting to an MQ V7 Server and sees the following stack trace error. This issue is caused by the customer's JVM not supporting CCSID 1140. From the trace we see the customer was running with a non-IBM JRE. The dead letter queue could not be written to because of exception ' Message : java.lang.NullPointerException Class : class java.lang.NullPointerException com.ibm.msg.client.wmq.internal.WMQPoison Stack : com.ibm.mq.jmqi.internal.JmqiDC. writeMQField(JmqiDC.java:812) : com.ibm.mq.jmqi.internal.JmqiDC. writeMQField(JmqiDC.java:780) : com.ibm.mq.jmqi.MQDLH.writeToBuffer (MQDLH.java:440) : com.ibm.mq.jmqi.internal. AbstractMqiStructure.writeToBuffer(AbstractMqiStructure.java:87) : com.ibm.msg.client.wmq.internal. WMQPoison$PoisonMessage.chainInDLH(WMQPoison.java:1999) : com.ibm.msg.client.wmq.internal. WMQPoison$PoisonMessage.access$1400(WMQPoison.java:1725) : com.ibm.msg.client.wmq.internal. WMQPoison.deadletter(WMQPoison.java:784) : com.ibm.msg.client.wmq.internal. WMQPoison.handlePoisonMessage(WMQPoison.java:439) : com.ibm.msg.client.wmq.internal. WMQPoison.handlePoisonMessage(WMQPoison.java:325) : com.ibm.msg.client.wmq.internal. WMQPoison.handlePoisonMessage(WMQPoison.java:294) : com.ibm.msg.client.wmq.internal. WMQConsumerShadow.getMsg(WMQConsumerShadow.java:1499) : com.ibm.msg.client.wmq.internal. WMQSyncConsumerShadow.receiveInternal(WMQSyncConsumerShadow.java :227) : com.ibm.msg.client.wmq.internal. WMQConsumerShadow.receive(WMQConsumerShadow.java:1165) : com.ibm.msg.client.wmq.internal. WMQMessageConsumer.receive(WMQMessageConsumer.java:460) : com.ibm.msg.client.jms.internal. JmsMessageConsumerImpl.receiveInboundMessage(JmsMessageConsumerI mpl. java:786) : com.ibm.msg.client.jms.internal. JmsMessageConsumerImpl.receive(JmsMessageConsumerImpl.java:486) : com.ibm.mq.jms.MQMessageConsumer. receive(MQMessageConsumer.java:212)
Local fix
Ensure that messages are written to the queue using a coded character set identifier (CCSID) that can be accepted on the receiving application. Alternatively, configure the receiving application to request that the queue manager converts the message to a more suitable CCSID before delivery.
Problem summary
**************************************************************** USERS AFFECTED: This issue affects users of the WebSphere MQ Classes for JMS V7.1 and V7.5 who are attempting to receive messages whose body is represented in a coded character set identifier (CCSID) which is not supported by the Java virtual machine (JVM). Platforms affected: MultiPlatform **************************************************************** PROBLEM SUMMARY: A WebSphere MQ Classes for JMS application attempted to receive a message with a message body which was encoded using a character set not supported by the JVM, this resulted in a exception being flowed back to the application. This also marked the message as poisonous. The WebSphere MQ Classes for JMS poison message handling code then attempted to append a Dead Letter Header to the message encoded in the same code page as the MQMD (MQ Message Descriptor) structure. The code page was again not supported by the JVM and this resulted in a NullPointerException being thrown. As a result of the NullPointerException, the message not written to the Dead Letter Queue.
Problem conclusion
The WebSphere MQ Classes for JMS have now been altered to append a Dead Letter Header to the message in code page 1208 (UTF-8) if the code page specified in the MQMD is not supported by the JVM. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.1 7.1.0.5 v7.5 7.5.0.4 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
IC98520
Reported component name
WMQ WINDOWS V7
Reported component ID
5724H7220
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-12-30
Closed date
2014-01-20
Last modified date
2014-01-20
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
R710 PSY
UP
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Document Information
Modified date:
31 March 2023