Can't switch to design mode! bug?

Question

I created the following code as:
-created a new class
-dropped a SessionInfo on it
-set up the connection and appmodule for the sessionInfo1
-dropped a LoginDlg on it
-set up the dataItemName to the sessionInfo1 for this loginDlg1.
I quited the JDev3.1
I started JDev3.1 and tried to switch to design mode -> nothing in the navigator!
I quited JDev3.1
I started JDev3.1
I commented the line setting up the loginDlg1 dataitemname (the last line)
I can switch to design mode now!
You have to restart the JDeveloper not only comment out this line, to be able to design!
import oracle.dacf.dataset.*;
import oracle.dacf.dataset.connections.*;
import oracle.dacf.control.swing.*;
* A Class class.
* <P>
* @author
public class ConnTest extends Object {
SessionInfo sessionInfo1 = new SessionInfo();
LoginDlg loginDlg1 = new LoginDlg();
* Constructor
public ConnTest() {
try {
jbInit();
sessionInfo1.publishSession();
catch (Exception e) {
e.printStackTrace();
private void jbInit() throws Exception {
sessionInfo1.setAppModuleInfo(new ModuleInfo("packagex", "AppModule"));
sessionInfo1.setConnectionInfo(new LocalConnection("scott"));
sessionInfo1.setName("sessionInfo1");
loginDlg1.setDataItemName("infobus:/oracle/sessionInfo1");
Tib.
Ps.: If I drop a LOV control on the Class, and I would like to design this as well, then both the loginDlg.setDataItemName, and lOV1.setDataItemName lines must be commented out!
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Answer 1

You're lucky. When this type of thing happens to me, JDeveloper 3.1 crashes. I've found that by deleting random sections of code, eventually it can open up again.