Servlets and Websphere -- JAVA400-L

Title: Servlets and Websphere

Hi,
I have developed some servlets using Visualage and tried to load them on to the websphere. I copied the class files in to the AS/400 servlets directory. When I tried to execute the URL http://myserver/servlet/filename, I am getting the following error. Can anyone tell me why am I getting this error and how to overcome this problem...

I am running the servlets on our V4R4 m/c having Websphere 2.0 loaded on it. I developed the servlets in visualage 2.0.

Thanks and regards,
Gururaj

The exception from Internet Explorer:
500 Internal Server Error

reported this exception UserDetails: null. Please report this to the administrator of the web server.

UserDetails: null java.lang.ClassFormatError java/lang/ClassLoader.defineClass(Ljava/lang/String;[BII)Ljava/lang/Class;+4 (ClassLoader.java:219) com/ibm/servlet/classloader/DynamicClassLoader.loadNonSystemClass(Ljava/lang/String;)Ljava/lang/Class;+186 (DynamicClassLoader.java:98) com/ibm/servlet/classloader/ClassLoaderTemplate.loadClass(Ljava/lang/String;Z)Ljava/lang/Class;+14 (ClassLoaderTemplate.java:51) com/ibm/servlet/classloader/PowerClassLoader.loadNonSystemClass(Ljava/lang/String;)Ljava/lang/Class;+4 (PowerClassLoader.java:52) com/ibm/servlet/classloader/ClassLoaderTemplate.loadClass(Ljava/lang/String;Z)Ljava/lang/Class;+14 (ClassLoaderTemplate.java:51) java/beans/Beans.instantiate(Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/lang/Object;+124 (Beans.java:117) com/sun/server/ServletManager.instantiateLocalServlet(Ljava/lang/String;Ljava/lang/String;)Ljavax/servlet/Servlet;+73 (ServletManager.java:769) com/sun/server/ServletManager.instantiateServlet(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljavax/servlet/Servlet;+7 (ServletManager.java:691) com/sun/server/ServletManager.loadServlet(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljavax/servlet/ServletConfig;)V+102 (ServletManager.java:986) com/sun/server/ServletManager.loadServlet(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Lcom/sun/server/util/ExProperties;)V+21 (ServletManager.java:935) com/ibm/servlet/engine/SEServletManager.loadServlet(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Lcom/sun/server/util/ExProperties;)V+1 (SEServletManager.java:217) com/ibm/servlet/engine/SEServletManager.loadServlet(Ljava/lang/String;)V+56 (SEServletManager.java:166) com/sun/server/ServletManager.getAndLoadServletState(Ljava/lang/String;)Lcom/sun/server/ServletState;+16 (ServletManager.java:1167) com/sun/server/ServletManager.callServletService(Ljava/lang/String;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+69 (ServletManager.java:1321) com/ibm/servlet/engine/SEServletManager.callServletService(Ljava/lang/String;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+12 (SEServletManager.java:133) com/sun/server/http/InvokerServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V+131 (InvokerServlet.java:104) javax/servlet/http/HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+25 (HttpServlet.java:588) com/sun/server/ServletState.callService(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+50 (ServletState.java:316) com/sun/server/ServletManager.callServletService(Ljava/lang/String;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+81 (ServletManager.java:1323) com/ibm/servlet/engine/SEServletManager.callServletService(Ljava/lang/String;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V+12 (SEServletManager.java:133) com/sun/server/ProcessingState.invokeTargetServlet()V+106 (ProcessingState.java:434) com/sun/server/http/HttpProcessingState.execute(Lcom/sun/server/ProcessingStage;)V+29 (HttpProcessingState.java:93) com/sun/server/ProcessingSupport.process(Lcom/sun/server/ProcessingState;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)Z+73 (ProcessingSupport.java:260) com/sun/server/Service.process(Lcom/sun/server/ProcessingState;Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)Z+11 (Service.java:229) com/ibm/servlet/engine/SELauncher.processMultiThreaded(Lcom/ibm/servlet/engine/SEService;Lcom/ibm/servlet/engine/SEConnectionHandler;)Z+13 (SEEngine.java:563) com/ibm/servlet/engine/SEEngine.service(Lcom/ibm/servlet/engine/api/IAppServerConnection;)V+117 (SEEngine.java:312) com/ibm/servlet/engine/api/ServerEntry.service(Lcom/ibm/servlet/engine/api/IServerRequestConnection;)I+89 (ServerEntry.java:201) com/ibm/servlet/engine/nativeEntry/NativeServerEntry.service(JJILjava/lang/String;Ljava/lang/String;)I+48 (NativeServerEntry.java:144)