I am having a problem with Netbeans 6.5 + JDK 1.6 + Swing Application Framework + JDBC

Seems like i cannot create a new jdbc connection from the Swing gui unless i do it before in the main method (before
Swing init):

I create a new project: 
File -> New Project -> Java -> Java Desktop Application
[Name it Test]
Open TestApp.java, and go to main Method, add a db conection like this:

try
{
System.out.println("1.1");
Class.forName("com.ibdm.db2.jcc.DB2Driver");
System.out.println("1.2");
Connection conn=DriverManager.getConnection(someURL,someUser,somePassword);
System.out.println("1.3");
conn.close();
System.out.println("1.4");
}
catch(Exception ex)
{
}


Run the program, i get:
1.1
1.2
1.3
1.4

now, open TestView in Design mode, add a button, go to events, and create a new actionPerformed event method
copy & paste the same code executed on main

Run the program again, and press button, the output is:
1.1
1.2
1.3
1.4
1.1
1.2
1.3
1.4

(that means, 4 steps on main, and 4 steps on click response)

Now, the final step, remove the jdbc code on the main method
Run again and click button, output is:

1.1
1.2

.... (now, it hangs forever) ...

I don't know why but it seems like if Swing Application Framework is doing something to jdbc connections, it can be
solved testing the connection before running into gui, but this is not a solution for DB configuration from the gui.

i have seen this reported on java.sun.com here:
http://forums.sun.com/thread.jspa?threadID=5332211