Error while delivering DataObject!

Question

Hi,
I've problems with the returned Data from the Server.
The call from client to server works fine, the Data-Generation (Server-side) is also OK. But the Error seems to occur while delivering the Data from Server back to the Client!
That's the code causing the error:
mos.corbaTransPackage.AllData corbaTest = myObj.readData();
Thanx for any help!
JayR
Client SourceCode:
String corbaService = System.getProperty("service","corbaMOS");
               Properties props = new Properties();
     props.put("org.omg.CORBA.ORBInitialPort", "1050");
     props.put("org.omg.CORBA.ORBInitialHost", "192.168.17.139");
               org.omg.CORBA.ORB myOrb = org.omg.CORBA.ORB.init(new String[]{}, props);
               org.omg.CORBA.Object objRef = myOrb.resolve_initial_references("NameService");
               org.omg.CosNaming.NamingContext ncRef = org.omg.CosNaming.NamingContextHelper.narrow(objRef);
               org.omg.CosNaming.NameComponent nc = new org.omg.CosNaming.NameComponent(corbaService, "");
               org.omg.CosNaming.NameComponent[] path = new org.omg.CosNaming.NameComponent[] {nc};
               org.omg.CORBA.Object corbaObj = ncRef.resolve(path);
               mos.corbaTrans myObj = mos.corbaTransHelper.narrow(corbaObj);
               mos.corbaTransPackage.AllData corbaTest = myObj.readData(myGui.SessionID, "MOSAuftragServer");
IDL-Code:
module mos
     interface corbaTrans {
          struct SingleData {
               string name;
               string value;
          struct DataSet {
               SingleData sData[30];
          struct AllData {
               DataSet Database[2000];
          struct mosorb {          
               string SessionID;
               string TargetClassName;
               string SqlStmt;
               string Command;
               string TransferType;
               string Info;
          AllData readData(in string SessionID, in string TargetClassName);
          mosorb getMetaData();

Answer 1

Sorry, I forgot the ErrorMsg:
org.omg.CORBA.UNKNOWN: vmcid: SUN minor code: 202 completed: Maybe