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| MQ EOFException |
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| spprash |
 Posted: Mon Nov 21, 2005 5:35 pm Post subject: MQ EOFException |
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Apprentice
Joined: 29 Dec 2002
Posts: 25
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We are using MQworkflow 3.5 in solaris.
We occasionally get the below EOF errors while browsing from our UPES Queue defined in Workflow QueueManager
java.io.EOFException
at com.ibm.mq.MQMessage.readConvertedString(MQMessage.java:1943)
at com.ibm.mq.MQMessage.readString(MQMessage.java:960)
at com.jpmorgan.cc.common.utils.workflowmanager.QueueAdapter.browseMessage(QueueAdapter.java:192)
The code snippet doing the read is below
browseMsgOptions = new MQGetMessageOptions();
browseMsgOptions.options = MQC.MQGMO_NO_WAIT | MQC.MQGMO_BROWSE_NEXT;
MQMessage retrievedMessage = new MQMessage();
queue.get(retrievedMessage, browseMsgOptions);
message = retrievedMessage.readString(retrievedMessage.getMessageLength());
There are two threads parallely getting and browsing messages from this queue. Any reason why this error comes?
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Prash |
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| EddieA |
| Posted: Mon Nov 21, 2005 10:30 pm Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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It's going back a couple of years now, but I once had a problem with readString blowing up with an EOFException sometimes. It turned out to be a combination of the Java client (MA88, as it was), the jre, and UTF-8 data.
What version of MQ Java are you running.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
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| spprash |
| Posted: Tue Nov 22, 2005 9:39 am Post subject: |
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Apprentice
Joined: 29 Dec 2002
Posts: 25
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The version information in our com.ib.mq.jar file is below
Manifest-Version: 1.0
Name: com/ibm/mq/
Sealed: false
Implementation-Version: 5.304 - j5304-05-030915
Specification-Title: WebSphere MQ classes for Java
Specification-Version: 5.304
Implementation-Title: WebSphere MQ classes for Java
Created-By: 1.3.1_01 (Sun Microsystems Inc.)
Class-Path: com.ibm.mq.jar
Implementation-Vendor: IBM Corporation
Specification-Vendor: IBM Corporation
This issue never occured to us earlier. In recent times we changes the get option to a browse option and introducted 2 polling threads, one doing a get and another doing a browse. After this change we notice this error occasionally
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Prash |
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