The error message "java.lang.NoClassDefFoundError: com.ibm.ffdc.Manager when running a Websphere Application ServerThin Client that tries to use the JMX API

When executing the following code from a Websphere Application Server Thin client :

import com.ibm.websphere.management.exception.ConnectorException ; import com.ibm.websphere.management.exception.InvalidAdminClientTypeException; import com.ibm.websphere.management.exception.* ; import java.util.* ; import javax.management.* ; import com.ibm.ws.pmi.client.*; import com.ibm.websphere.pmi.*; import com.ibm.websphere.pmi.client.*; import com.ibm.websphere.pmi.stat.* ; public class JMXTest implements PmiConstants {    private static AdminClient ac = null ;      private ObjectName perfOName = null ;    private ObjectName serverOName = null ;    private ObjectName wlmOName = null ;    private ObjectName jvmOName = null ;    private ObjectName orbtpOName = null ;    private PmiModuleConfig[] configs = null ;    private static String host = "localhost";     // default host    private static String port = "8880";          // default port number    private static String connector = "SOAP";     // default JMX connector        public static void main(String[] args)    {       JMXTest instance = new JMXTest () ;            java.util.Properties props = new java.util.Properties() ;        props.put(AdminClient.CONNECTOR_TYPE, connector) ;        props.put(AdminClient.CONNECTOR_HOST, host) ;        props.put(AdminClient.CONNECTOR_PORT, port) ;                      try {         ac = AdminClientFactory.createAdminClient(props) ;        }        catch (Exception ex) {         new AdminException(ex).printStackTrace() ;         System.out.println ("Admin Client Allocation Error") ;        }            }     }

the following console output is displayed:

Exception in thread "main" java.lang.NoClassDefFoundError:
com.ibm.ffdc.Manager
at com.ibm.websphere.management.AdminClientFactory.loadPropertiesFromFile
(AdminClientFactory.java:1062) at
com.ibm.websphere.management.AdminClientFactory.access$000
(AdminClientFactory.java:117) at
com.ibm.websphere.management.AdminClientFactory$1.run
(AdminClientFactory.java:295)at
com.ibm.ws.security.util.AccessController.doPrivileged
(AccessController.java:63) at
com.ibm.websphere.management.AdminClientFactory.createAdminClient
(AdminClientFactory.java:293) at jmxTest.JMXTest.main(JMXTest.java:43)
Caused by: java.lang.ClassNotFoundException: com.ibm.ffdc.Manager
at java.net.URLClassLoader.findClass(URLClassLoader.java:419)
at java.lang.ClassLoader.loadClass(ClassLoader.java:643)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:300)
at java.lang.ClassLoader.loadClass(ClassLoader.java:609)
... 6 more


Add the WebSphere Application Server Administration Thin Client JAR jar

com.ibm.ws.admin.client_X.0.0.jar to the application Java Build Path located in the runtimes folder of the WebSphere Application Server installation directory.

For example, for WebSphere Application Server 7.0, the file name is:

com.ibm.ws.admin.client_7.0.0.jar

and it is located in:

C:\Program Files\IBM\SDP\runtimes\base_v70\runtimes