Mule 3.4: java.lang.ClassNotFoundException: com.ibm.mq.jms.MQConnectionFactory - mule

Question

I am trying to use WMQ as inbound endpoint, I have imported the sample from the sample catalog.
When I run the flow, I am getting the error as class not found.
I added the required jar files to the build path, but still getting the error.
Please let me know, what is the issue.
nested exception is java.lang.NoClassDefFoundError: com/ibm/mq/jms/MQConnectionFactory
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:412)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
at org.mule.config.spring.MuleApplicationContext.loadBeanDefinitions(MuleApplicationContext.java:113)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451)
at org.mule.config.spring.SpringRegistry.doInitialise(SpringRegistry.java:89)
at org.mule.registry.AbstractRegistry.initialise(AbstractRegistry.java:109)
... 13 more
Caused by: java.lang.NoClassDefFoundError: com/ibm/mq/jms/MQConnectionFactory
at com.mulesoft.mule.transport.wmq.WebSphereMQConnector.<clinit>(WebSphereMQConnector.java:42)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:266)
at org.apache.commons.lang.ClassUtils.getClass(ClassUtils.java:629)
at org.apache.commons.lang.ClassUtils.getClass(ClassUtils.java:677)
at org.apache.commons.lang.ClassUtils.getClass(ClassUtils.java:660)
at org.mule.config.spring.parsers.assembly.DefaultBeanAssembler.methodExists(DefaultBeanAssembler.java:568)
at org.mule.config.spring.parsers.assembly.DefaultBeanAssembler.bestGuessName(DefaultBeanAssembler.java:537)
at org.mule.config.spring.parsers.assembly.DefaultBeanAssembler.extendBean(DefaultBeanAssembler.java:116)
at org.mule.config.spring.parsers.AbstractMuleBeanDefinitionParser.processProperty(AbstractMuleBeanDefinitionParser.java:204)
at org.mule.config.spring.parsers.AbstractMuleBeanDefinitionParser.doParse(AbstractMuleBeanDefinitionParser.java:424)
at org.mule.config.spring.parsers.AbstractMuleBeanDefinitionParser.parseInternal(AbstractMuleBeanDefinitionParser.java:297)
at org.mule.config.spring.parsers.generic.MuleOrphanDefinitionParser.parseInternal(MuleOrphanDefinitionParser.java:41)
at org.springframework.beans.factory.xml.AbstractBeanDefinitionParser.parse(AbstractBeanDefinitionParser.java:59)
at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
at org.mule.config.spring.MuleHierarchicalBeanDefinitionParserDelegate.parseCustomElement(MuleHierarchicalBeanDefinitionParserDelegate.java:88)
at org.mule.config.spring.MuleHierarchicalBeanDefinitionParserDelegate.parseCustomElement(MuleHierarchicalBeanDefinitionParserDelegate.java:130)
at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1428)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:190)
at org.mule.config.spring.MuleBeanDefinitionDocumentReader.parseBeanDefinitions(MuleBeanDefinitionDocumentReader.java:55)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:140)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:111)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
... 22 more
Caused by: java.lang.ClassNotFoundException: com.ibm.mq.jms.MQConnectionFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
... 46 more

Answer 1

This is a known issue with studio, where the IBM library are needed as part of the system classloader.
Please copy them into the
${studio.home}/plugins/org.mule.tooling.server.${mule.version}.ee_${mule.version}.${release.date}/mule/user
folder to work around it.