ClassNotFoundException when using resin, jboss and EJB3
Hi,
I am having a application where I need to use resin-3.0.14 as a web server and jboss4.0.3SP1 as the application server.
I am using stateless session bean's in EJB3. When I call a remote method on the EJB from the servlet I get the following exception in the servlet.
I have deployed the same application on tomcat it works fine.
java.lang.ClassNotFoundException: com.rewards.model.Category at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:574) at org.jboss.remoting.loading.ObjectInputStreamWithClassLoader.resolveClass(ObjectInputStreamWithClassLoader.java:102) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1538) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339) at org.jboss.aop.joinpoint.InvocationResponse.readExternal(InvocationResponse.java:107) at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1711) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339) at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:73) at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:242) at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:112) at org.jboss.remoting.Client.invoke(Client.java:226) at org.jboss.remoting.Client.invoke(Client.java:189) at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:41) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98) at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:46) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98) at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:40) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98) at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:41) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:98) at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:88) at $Proxy0.remoteCategory(Unknown Source) at com.rewards.RewardsServlet.doPost(RewardsServlet.java:66) at com.rewards.RewardsServlet.doGet(RewardsServlet.java:51) at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:99) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:163) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:208) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:259) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:363) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:490) at com.caucho.util.ThreadPool.run(ThreadPool.java:423) at java.lang.Thread.run(Thread.java:595)
I have two methods in my Session bean. One returns a string and the other returns a object of type category which has two simple fields, name and description.
The object is serializable and implements the serializable interface.
The method which returns a string works fine. It gives the correct output.
I am placing snippets of my session bean and servlet here.
RewardsServlet
protected void doPost(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException {
{
Context ctx = new InitialContext();
rewardsEJB = (RewardsEJB)ctx.lookup(RewardsEJB.class.getName());
String test = rewardsEJB.remoteMethod();
System.out.println("Test is : " + test);
Category category = rewardsEJB.remoteCategory();
System.out.println("Name is : " + category.getName());
}RewardsEJB
public String remoteMethod() {
return "Returned String from the remote method";
}
public Category remoteCategory() {
Category category = new Category();
category.setName("Remote Test");
category.setDescription("Remote Description");
return category;
}
Can anyone help me out with this problem. Does it have to do anything with ejb3?
Thanks in advance,
Aditya.P
