Troubleshoot and support > WebSphere Commerce Portals


ClassNotFoundException encountered when starting WebSphere Commerce Portal Server

When running the startServer script to start the WebSphere Portal server, you encounter a ClassNotFoundException in the SystemOut.log file.


Symptoms

The following exception appears in your WebSphere Portal SystemOut.log file: 

[6/29/09 19:38:03:069 CST] 0000000a SibMessage    E   [:] CWSJP0002E: An internal messaging error occurred in com.ibm.ws.sib.remote.mq.WMQClientVersionCheck.v
erifyClientClasses, 1:128:1.23 due to an exception java.lang.ClassNotFoundException: com.ibm.mq.MQEnvironment.
[6/29/09 19:38:14:777 CST] 0000000a RAWrapperImpl E   J2CA0043E: An Exception occurred while trying to instantiate a ResourceAdapter JavaBean instance for the
 installed ResourceAdapter defined by key cells/wcs208/resources.xml#J2CResourceAdapter_1221506005093. The exception is: java.lang.ClassNotFoundException: com
.ibm.mq.connector.ResourceAdapterImpl
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at com.ibm.ws.bootstrap.ExtClassLoader.findClass(ExtClassLoader.java:150)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at com.ibm.ws.bootstrap.ExtClassLoader.loadClass(ExtClassLoader.java:90)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:247)
        at com.ibm.ejs.j2c.RAWrapperImpl.createAndConfigureRA(RAWrapperImpl.java:2208)
        at com.ibm.ejs.j2c.RAWrapperImpl.startRA(RAWrapperImpl.java:688)
        at com.ibm.ejs.j2c.RALifeCycleManagerImpl.startRA(RALifeCycleManagerImpl.java:1101)
        at com.ibm.ejs.j2c.RALifeCycleManagerImpl.resourceProviderEvent(RALifeCycleManagerImpl.java:823)
        at com.ibm.ws.runtime.component.ResourceMgrImpl$ResourceEventListenerFilterProxy.resourceProviderEvent(ResourceMgrImpl.java:2119)
        at com.ibm.ws.runtime.component.ResourceMgrImpl.installResourceProvider(ResourceMgrImpl.java:1504)
        at com.ibm.ws.runtime.component.ResourceMgrImpl.installResource(ResourceMgrImpl.java:1370)
        at com.ibm.ws.runtime.component.ResourceMgrImpl.installResources(ResourceMgrImpl.java:1311)
        at com.ibm.ws.runtime.component.ResourceMgrImpl.loadResources(ResourceMgrImpl.java:1055)
        at com.ibm.ws.runtime.component.ResourceMgrImpl.start(ResourceMgrImpl.java:735)
        at com.ibm.ws.runtime.component.ContainerHelper.startComponents(ContainerHelper.java:538)
        at com.ibm.ws.runtime.component.ContainerImpl.startComponents(ContainerImpl.java:627)
        at com.ibm.ws.runtime.component.ContainerImpl.start(ContainerImpl.java:618)
        at com.ibm.ws.runtime.component.ApplicationServerImpl.start(ApplicationServerImpl.java:227)
        at com.ibm.ws.runtime.component.ContainerHelper.startComponents(ContainerHelper.java:538)
        at com.ibm.ws.runtime.component.ContainerImpl.startComponents(ContainerImpl.java:627)
        at com.ibm.ws.runtime.component.ContainerImpl.start(ContainerImpl.java:618)
        at com.ibm.ws.runtime.component.ServerImpl.start(ServerImpl.java:502)
        at com.ibm.ws.runtime.WsServerImpl.bootServerContainer(WsServerImpl.java:298)
        at com.ibm.ws.runtime.WsServerImpl.start(WsServerImpl.java:214)
        at com.ibm.ws.runtime.WsServerImpl.main(WsServerImpl.java:666)
        at com.ibm.ws.runtime.WsServer.main(WsServer.java:59)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)


Solution

The problem is caused by the WebSphere MQ resource adapter configuration. Execute the following steps to resolve the issue:

  1. Log into the WebSphere Portal Admin Console, at the following URL: https://hostname:10003/ibm/console/login.do?action=secure

  2. Choose Environment > WebSphere variables

  3. Update the CONNECTOR_INSTALL_ROOT value from ${USER_INSTALL_ROOT}/installedConnectors to ${WAS_INSTALL_ROOT}/installedConnectors.

  4. Restart the WebSphere Portal server.
Alternately, you can see the following link in the WebSphere Application Server Information Center, which deals with the problem in greater detail:


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