Create a jdbc connection within forms

Question

I have created a little piece of java code that connects to my database via a jdbc connection, inserts a value into a table, commits, then closes the jdbc connection.
This works perfectly in JDeveloper.
Now, I need to use it within forms, but forms is throwing an exception in the java console: [I have signed the file]
and I also get an alert that says "FRM-92100: Your connection to the Server was interrupted. This may be the result of a network error or a failure on the Server. You will need to reestablish your session."
I'm assuming when my java code tries to do a jdbc connection, it conflicts with the already established forms connection. Does anyone have any suggestions on how to overcome this?
-----------------java console exception-----------------
java.lang.IllegalAccessException: myconnection
     at java.lang.Class.newInstance0(Native Method)
     at java.lang.Class.newInstance(Unknown Source)
     at oracle.forms.handler.UICommon.instantiate Unknown Source)
     at oracle.forms.handler.UICommon.onCreate(Unknown Source)
     at oracle.forms.handler.ButtonItem.onCreate(Unknown Source)
     at oracle.forms.engine.Runform.onCreateHandler(Unknown Source)
     at oracle.forms.engine.Runform.processMessage(Unknown Source)
     at oracle.forms.engine.Runform.processSet(Unknown Source)
     at oracle.forms.engine.Runform.onMessageReal(Unknown Source)
     at oracle.forms.engine.Runform.onMessage(Unknown Source)
     at oracle.forms.engine.Runform.sendInitialMessage(Unknown Source)
     at oracle.forms.engine.Runform.startRunform(Unknown Source)
     at oracle.forms.engine.Main.createRunform(Unknown Source)
     at oracle.forms.engine.Main.start(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
------------------java code-------------------------
NOTES: of course I have taken out the real ip
address, the db name, and the login and password.
import java.sql.*;
import java.io.*;
import oracle.jdbc.driver.*;
import oracle.forms.ui.VButton;
class connection extends VButton
public static void main (String[] args) {
try {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
String url = "jdbc:oracle:thin:@<ip>:1521:<databasename>";
Connection conn = DriverManager.getConnection(url,"<login>","<password>");
Statement stmt = conn.createStatement();
ResultSet rs;
rs = stmt.executeQuery("insert into lh_test (my_name) values ('this')");
rs = stmt.executeQuery("commit");
conn.close();
} catch (Exception e) {
System.err.println("Got an exception! ");
System.err.println(e.getMessage());

Answer 1

Hi 348874,Frank
Frank,do you thinck that if this java class would extend VBean,instead of VButton will it make any diffence?(I mean,it do has a main method,wich isn't executed when the VButton initialises).
Ín fact,when having a closer look into the java class(wich ,obvioulsly I didn't last time) I'm quite confused...why is this exception raising?
This Component should do nothing in fact,when inserted into a form.
As far as I know,from Forms Applet point of view,this class should be exactly a VButton,because the constructor and init() method are exactly the ones inherited from VButton(This class isn't adding anything to VButton)...Am I wrong??