JavaBean not working with Oracle Forms (URGENT)

Question

I have written a Javabean program which I invoke from Oracle Forms. The program is designed to pass a parameter from the form to the bean and get a parameter back to the form from the Javabean. The bean is called on the when-button-pressed event of a form button. The problem is, the form doesnt seem to invoke the bean at all. There seems to be no communcation between the form and the bean at runtime on-click of the form button other that all the messages in the form procedure being displayed.
The event code for the button is,
Declare
setNewMsg varchar2(2000) := 'Hello World';
getData varchar2(2000);
BeanHdl Item;
Begin
BeanHdl := find_item('Block3.MYBEAN');
If NOT ID_NULL(BeanHdl) Then
          Message('Before Set');
          SET_CUSTOM_PROPERTY(BeanHdl,1,'setMessage',setNewMsg);
          Message('Before Get');
          getData := GET_CUSTOM_PROPERTY(BeanHdl,1,'getMessage');
          SYNCHRONIZE;
          Message(getData);
          Message('After Get');
          Message(' ');
Else
          Message('The ID is null');
          Message(' ');
End If;
END;
The javabean code is,
package oracle.forms.beans;
import java.awt.*;
import java.io.*;
import java.beans.*;
import oracle.forms.ui.*;
import oracle.forms.properties.*;
import oracle.forms.handler.*;
import oracle.ewt.lwAWT.*;
public class SimpleTestBean extends VBean { 
public static final ID SETMESSAGE = ID.registerProperty("setMessage");
public static final ID GETMESSAGE = ID.registerProperty("getMessage");
private String msg = "";
public String newMessage() {
     return msg;
public Object getProperty(ID id) { 
     try { 
          if (id == GETMESSAGE) { 
               return newMessage();
return super.getProperty(id);
catch (Exception e) { 
     e.printStackTrace();
return null;
public boolean setProperty(ID id, Object value) { 
     try { 
          if (id == SETMESSAGE) { 
          msg = (String) value;
return super.setProperty(id, value);
catch (Exception e) { 
     e.printStackTrace();
return false;
Thanks

Answer 1

Hi,
     I have written a Javabean program which I invoke from Oracle Forms. The program is designed to pass a parameter from Oracle Form(Ver 6i) to the java bean and get a parameter back to the form. The Javabean is called on "When-Button-Pressed" event of a Form button. The problem is, Form doesn't seem to invoke the bean at all. There seems to be no communication between the Oracle Form and the Javabean at runtime.
     On-click of the Form button though all test messages in the Form trigger are being displayed (Even message before and after the Set_Custom_Property & Get_Custome_Property). The only issue is the Form variable doesn't show the returned value from the bean. So the big question is - Whether the bean is invoked at all or not.
     If YES then how to check it and if NO then how to communicate with the bean from Oracle Form. I am attaching the code of Javabean and trigger code.
Thanks & Regards
NOTE : All the ClassPath for the JavaBean has been set properly and the Form is also recognizing the Implementation Class for the Javabean.
     The Trigger Code is,
     --- This code is written on When-Button-Pressed trigger of Form button.
     --- The form also contains the bean area "MYBEAN", which i have referred in the code.
     Declare
          setNewMsg varchar2(2000) := 'Hello World';
          getData varchar2(2000);
          BeanHdl Item;
     Begin
     BeanHdl := find_item('Block3.MYBEAN');
     If NOT ID_NULL(BeanHdl) Then
          Message('Before Set');
          SET_CUSTOM_PROPERTY(BeanHdl,1,'setMessage',setNewMsg);
          Message('Before Get');
          getData := GET_CUSTOM_PROPERTY(BeanHdl,1,'getMessage');
          SYNCHRONIZE;
          Message(getData);
          Message('After Get');
          Message(' ');
     Else
          Message('The ID is null');
          Message(' ');
     End If;
     END;
The Bean Code is,
     package oracle.forms.beans;
     import java.awt.*;
     import java.io.*;
     import java.beans.*;
     import oracle.forms.ui.*;
     import oracle.forms.properties.*;
     import oracle.forms.handler.*;
     import oracle.ewt.lwAWT.*;
     public class SimpleTestBean extends VBean { 
     public static final ID SETMESSAGE = ID.registerProperty("setMessage");
     public static final ID GETMESSAGE = ID.registerProperty("getMessage");
     private String msg = "";
     public String newMessage() {
          return msg;
     public Object getProperty(ID id) { 
          try { 
               if (id == GETMESSAGE) { 
                    return newMessage();
return super.getProperty(id);
     catch (Exception e) { 
          e.printStackTrace();
          return null;
     public boolean setProperty(ID id, Object value) { 
          try { 
          if (id == SETMESSAGE) { 
          msg = (String) value;
return super.setProperty(id, value);
     catch (Exception e) { 
          e.printStackTrace();
          return false;
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