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Editorial Team
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Asked: 2026-05-16T17:17:47+00:00

i am using MQ7 and trying to access a queue with JMS api’s. Getting

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i am using MQ7 and trying to access a queue with JMS api’s. Getting this error.
Has anyone seen it before? How do i resolve this? TIA

Exception in thread “main” com.ibm.msg.client.jms.DetailedJMSException:
JMSFMQ6312: An exception occurred in the Java(tm) MQI. The Java(tm) MQI has thrown an exception describing the problem. See the linked exception for further information.

Caused by: com.ibm.mq.jmqi.JmqiException: CC=2;RC=2495;AMQ8568: The native JNI library ‘mqjbnd’ was not found. [3=mqjbnd]

Caused by: java.lang.UnsatisfiedLinkError: no mqjbnd in java.library.path

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1 Answer

  1. Editorial Team

    This is almost always caused by a combination of an incomplete client install and/or a CLASSPATH issue. Many people grab the jar files rather than performing the complete install and do not necessarily get all of them. In addition to insuring all required binaries are present, using the install media provides several additional capabilities such as diagnostics and trace. It also assures that maintenance can be applied. The WMQ client install media are available for free download as SupportPac MQC7. The CLASSPATH setting should be as described in the WebSphere MQ Using Java manual.

    If the client install is performed from the IBM media and the environment is set up as per the docs, this fixes nearly all cases such as you have reported here. There are a few Install Verification Test apps (some of those diagnostics installed with the full media that I mentioned) which are described here and which can help determine if a problem is with the installation or with the code.

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