Why am i getting JMSRuntime Exception NoClassDefFoundError attempting to connect splunk to MQ via bindings file

[stlarsen]

Running Splunk 7.1.1 on a Windows 7 Enterprise VM. Followed instructions for setting up JMS Messaging Module to connect to remote MQ Queue using connection factory. Copied different versions of MQ client jar files (8.0.0.10, 7.5.x.x) to the jms_ta folder and got different errors, but still can't get to the point where it actually tries connecting to the remote MQ Queue Manager. These are the messages I am seeing in the splunkd.log:

07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" Stanza jms://queue/:SplunkQueue : Error connecting : java.lang.NoClassDefFoundError: javax/jms/JMSRuntimeException
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at com.ibm.mq.jms.MQConnectionFactoryFactory.getObjectInstance(MQConnectionFactoryFactory.java:83)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:321)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at com.sun.jndi.fscontext.RefFSContext.lookup(RefFSContext.java:146)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at com.sun.jndi.fscontext.FSContext.lookup(FSContext.java:127)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at javax.naming.InitialContext.lookup(InitialContext.java:417)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at com.splunk.modinput.jms.JMSModularInput$MessageReceiver.connect(Unknown Source)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at com.splunk.modinput.jms.JMSModularInput$MessageReceiver.run(Unknown Source)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" Caused by: java.lang.ClassNotFoundException: javax.jms.JMSRuntimeException
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
07-19-2018 08:06:55.187 -0600 ERROR ExecProcessor - message from "python "C:\Program Files\Splunk\etc\apps\jms_ta\bin\jms.py"" ... 7 more

[Damien_Dallimor · Accepted solution]

I'm guessing that the jms provider jars for MQ that you are using are referring to javax.jms.JMSRuntimeException , which is not shipped in the core JMS App. Try using MQ jars pre version 8.

[stlarsen]

Thanks Damien. I had tried that before with no success, but based on your response, I completely reinstalled everything, then copied in the MQ v7 jar files and it started right up!