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 -->
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