[omniORB] Problem narrowing an omniorb object from java client with JavaIDL

[Gustavo Madrigal]

Hi,

I'm a newbie to omniorb. I'm working in a project with a omniorb server 
running under linux and I want the windows clients to use JavaIDL (Sun's ORB, 
jre 1.3.1). But I'm having some problems narrowing an object reference from a 
java client, below is all the info about one of my problems
..
I've been doing some tests with a simple component defined by this idl 
interface:

/////////////////////////////////////////////////////////////////////////////////////////////////////////////
module EchoApp
{
	interface Echo
	{
        	string echoString(in string mesg);
	};
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////

The function  echoString returns the a copy of the string it receives.


In the server I saved the object's IOR in a file, the server code looks like 
this:

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
	CORBA::ORB_var orb = CORBA::ORB_init( argc, argv, "omniORB3" );

	CORBA::Object_var obj = orb->resolve_initial_references( "RootPOA" );
	PortableServer::POA_var poa = PortableServer::POA::_narrow( obj );

	Echo_i* myecho = new Echo_i();

	PortableServer::ObjectId_var myechoid = poa->activate_object( myecho );

	CORBA::String_var ref  = orb->object_to_string(obj);
	ofstream ostr( "/tmp/echo.ref" );
	ostr << ref;
	ostr.close();

	myecho->_remove_ref();

	PortableServer::POAManager_var pman = poa->the_POAManager();
	pman->activate();

	orb->run();
	orb->destroy();
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Then a sent the file to a windows computer, and tried this command from a DOS 
prompt:

	java EchoClient -ORBInitialHost <MyServer> -ORBInitialHost 8088

But I got the following error at line 40:

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
	ERROR : org.omg.CORBA.BAD_PARAM:   minor code: 0  completed: No
	org.omg.CORBA.BAD_PARAM:   minor code: 0  completed: No
		at EchoApp.EchoHelper.narrow(EchoHelper.java:60)
	 	at EchoClient.main(EchoClient.java:40)
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

The Java code for my client looks like this (The line 40 is indicated):
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
	org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args, null);

	String ref = null;
	try
	{
		BufferedReader in = new BufferedReader( new FileReader( "c:\\echo.ref" ) );
		ref = in.readLine();
	}
	catch( IOException ex )
	{
		System.out.println( "Could not open file 'c:\\echo.ref'" );
		System.exit( -1 );
	}
	System.out.println(ref);
	org.omg.CORBA.Object objRef = orb.string_to_object( ref);

	Echo echoRef  = EchoHelper.narrow(objRef); /*************THIS IS LINE 40*/
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

What am I doing wrong? Any ideas?

Thanks,
Gustavo