How can I start a client Application from a procedure?

Question

Hello, can someone help me to solve this problem?
I've written a client Application.(just one file Client.java) Then I created a .jar file for my applicaiton component and loaded it to the server using loadjava. (MyExample.jar)
It should be invoked by a procedure, which I've created.
create or replace procedure TEST as language java name 'MyExample.main(java.lang.String[])';
But when I want to start it in the SQl*Plus using "call TEST();", I received the message:
Executing PL/SQL: CALL COSMOS."JDEV_TMP_PROC_1"()
ORA-29541: Klasse COSMOS.CompUpdateClient konnte nicht aufgelöst werden
ORA-06512: in "COSMOS.TEST", Zeile 0
ORA-06512: in "COSMOS.JDEV_TMP_PROC_1", Zeile 3
ORA-06512: in Zeile 1
Process exited.
Can someone tell me why and how I can solve it?
Thanks
Lucia

Answer 1

As Andrew suggested, it might be an issue with broken java installation on your system.
You could try performing following steps to see if you get similar results. This will verify if there is something with your java installation or something to with the way you coded your java class(es).
(since you did not post the code, I'm not sure which one might be a problem.
SQL> create or replace and compile java source named "Hello" as
  2  import java.lang.* ;
  3  import java.util.* ;
  4
  5  public class Hello
  6  {
  7    public static void Say()
  8    {
  9     System.out.println("Hello World in Java!") ;
10    }
11  }
12  /
Java created.
SQL>
SQL> create or replace procedure Hello_Java is
  2  language java
  3  name 'Hello.Say()' ;
  4  /
Procedure created.
SQL> show errors
No errors.
SQL>
SQL> set serveroutput on size 100000
SQL> exec dbms_java.set_output(100000) ;
PL/SQL procedure successfully completed.
SQL> exec Hello_Java ;
Hello World in Java!
PL/SQL procedure successfully completed.
SQL>