java.lang.NoClassDefFoundError: javax/xml/rpc/encoding/Deserializer

[#|2011-03-28T06:33:44.081+0000|SEVERE|sun-appserver2.1|javax.enterprise.system.tools.deployment|_ThreadID=73;_ThreadName=Thread-81391;_RequestID=ff1b7ee6-c986-4ecb-8117-f7
878329199b;|Exception occured in J2EEC Phasejava.lang.ClassNotFoundException: javax.xml.rpc.encoding.Deserializer
java.lang.NoClassDefFoundError: javax/xml/rpc/encoding/Deserializer
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at sun.misc.Launcher$ExtClassLoader.findClass(Launcher.java:229)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:300)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:300)
        at com.sun.appserv.server.util.ASURLClassLoader.loadClass(ASURLClassLoader.java:144)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at com.sun.appserv.server.util.ClassLoaderChain.loadClass(ClassLoaderChain.java:158)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at com.sun.appserv.server.util.ClassLoaderChain.loadClass(ClassLoaderChain.java:158)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:300)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:300)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:247)
        at com.sun.enterprise.util.TypeUtil.getMethod(TypeUtil.java:393)
        at com.sun.enterprise.deployment.MethodDescriptor.getMethod(MethodDescriptor.java:277)
        at com.sun.enterprise.security.application.EJBSecurityManager.convertEJBMethodPermissions(EJBSecurityManager.java:508)
        at com.sun.enterprise.security.application.EJBSecurityManager.loadPolicyConfiguration(EJBSecurityManager.java:257)
        at com.sun.enterprise.security.application.EJBSecurityManager.initialize(EJBSecurityManager.java:309)
        at com.sun.enterprise.security.application.EJBSecurityManager.<init>(EJBSecurityManager.java:191)
        at com.sun.enterprise.security.application.EJBSecurityManager.createManager(EJBSecurityManager.java:1093)
        at com.sun.enterprise.deployment.backend.AppDeployer.postDeploy(AppDeployer.java:412)
        at com.sun.enterprise.deployment.backend.AppDeployer.deploy(AppDeployer.java:260)
        at com.sun.enterprise.deployment.backend.AppDeployer.doRequestFinish(AppDeployer.java:148)
        at com.sun.enterprise.deployment.phasing.J2EECPhase.runPhase(J2EECPhase.java:208)

If we get like this error we need to add  following libraries into your CLASSPATH environment variable.

• commons-discovery.jar
• commons-logging.jar
• jaxrpc.jar
• saaj.jar
• wsdl4j.jar