2 Replies Latest reply on Apr 20, 2007 7:45 AM by Michael Price

    unkown source when passing classes as args

    Michael Price Newbie

      I have included a simple application (listings after the error printout) to show the problem I am having. Essentially, when I try to use cetain classes as method arguments or a return value for methods implemented in a session bean I get unkown source in the Client. I keep having the feeling I have missed some simple thing in the documentation but I can't find it anywhere. I have searched forums and googled the Web but no luck. In the example below the client is printing 5 and "This is a String" to show what does work and then the error when returning a java.math.BigInteger.

      For JBoss I am using the Jems Installer 1.2.0.BETA3

      run-client:
      [java] 5
      [java] This is a String
      [java] Exception in thread "main" java.lang.reflect.UndeclaredThrowableException
      [java] at $Proxy0.getBigInteger(Unknown Source)
      [java] at Client.main(Client.java:14)
      [java] Caused by: java.rmi.MarshalException: Failed to communicate. Problem during marshalling/unmarshalling; nested exception is:
      [java] java.io.StreamCorruptedException: invalid type code: 07
      [java] at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:306)
      [java] at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143)
      [java] at org.jboss.remoting.Client.invoke(Client.java:525)
      [java] at org.jboss.remoting.Client.invoke(Client.java:488)
      [java] at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
      [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      [java] at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
      [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      [java] at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:53)
      [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      [java] at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77)
      [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      [java] at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
      [java] ... 2 more
      [java] Caused by: java.io.StreamCorruptedException: invalid type code: 07
      [java] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1356)
      [java] at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1642)
      [java] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
      [java] at java.io.ObjectInputStream.access$300(ObjectInputStream.java:188)
      [java] at java.io.ObjectInputStream$GetFieldImpl.readFields(ObjectInputStream.java:2107)
      [java] at java.io.ObjectInputStream.readFields(ObjectInputStream.java:519)
      [java] at java.math.BigInteger.readObject(BigInteger.java:3109)
      [java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      [java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      [java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      [java] at java.lang.reflect.Method.invoke(Method.java:597)
      [java] at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
      [java] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
      [java] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
      [java] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
      [java] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
      [java] at org.jboss.aop.joinpoint.InvocationResponse.readExternal(InvocationResponse.java:122)
      [java] at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)
      [java] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)
      [java] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
      [java] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
      [java] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
      [java] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
      [java] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
      [java] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
      [java] at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObject(JavaSerializationManager.java:128)
      [java] at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:66)
      [java] at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:279)
      [java] ... 14 more

      Here is the application code:

      import java.math.*;
      import javax.ejb.Remote;

      @Remote
      public interface Session
      {
      public int getInt();
      public String getString();
      public BigInteger getBigInteger();
      }

      ===============================================

      import java.math.BigInteger;
      import javax.ejb.Stateless;

      @Stateless
      public class SessionBean implements Session
      {
      public int getInt()
      {
      return 5;
      }

      public String getString()
      {
      return "This is a String";
      }

      public BigInteger getBigInteger()
      {
      return new BigInteger("7");
      }
      }

      ===============================================

      import java.math.*;
      import javax.naming.InitialContext;

      public class Client
      {
      public static void main(String[] args) throws Exception
      {
      InitialContext ctx = new InitialContext();
      Session session = (Session) ctx.lookup("SessionBean/remote");

      System.out.println(session.getInt());
      System.out.println(session.getString());
      System.out.println(session.getBigInteger());
      }
      }

      Here is the Ant build.xml file:

      <?xml version="1.0" encoding="UTF-8"?>













      <!-- Construct JBoss EJB classpath -->