Jdev Extensions oracle.ide.ExitNotAllowedException Error

Question

Hi ,
I was trying to build a jdev extension . In the extension project , I selected create new Gallery Item Wizar -->Name : EssWizard.java, category : genrenal , Folder : java .
In the java class invoke(Context ctx) method I called a function " show() " which provides a search dialogue for a file on your sytem and returns the selected file path using swing.
When I run the extension project and select my created gallert item I am getting the following error:
oracle.ide.ExitNotAllowedException
     at oracle.ide.IdeCore$1.checkExit(IdeCore.java:244)
     at javax.swing.JFrame.setDefaultCloseOperation(JFrame.java:377)
     at yourcompany.essjpr.EssWizard.show(EssWizard.java:87)
     at yourcompany.essjpr.EssWizard.invoke(EssWizard.java:55)
     at oracle.ide.wizard.WizardManager.invokeWizard(WizardManager.java:372)
     at oracle.ide.wizard.WizardManager$1.run(WizardManager.java:420)
     at oracle.ide.util.IdeUtil$3.run(IdeUtil.java:1089)
Can anyone tell what is the reason for the error. The show() function works fine when used as a normal java class.
Thanks,
Bhawna Bacchhawat.

Answer 1

I am using Jdev 11g Release 1 (11.1.1.7.0) .
Yes, I have seen the samples , and tried to implement in a similar way. Below is my EssWizar.java
package yourcompany.essjpr;
import java.awt.Dimension;
import java.io.File;
import javax.swing.BoxLayout;
import javax.swing.Icon;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import oracle.ide.Context;
import oracle.ide.Ide;
import oracle.ide.extension.RegisteredByExtension;
import oracle.ide.util.MenuSpec;
import oracle.ide.wizard.Wizard;
import oracle.javatools.icons.OracleIcons;
* Implementation of the "Ess" gallery item.
@RegisteredByExtension("yourcompany.essjpr")
public final class EssWizard extends Wizard {
private static final String WIZARD_NAME = "ESS (ESDK Sample)";
public boolean isAvailable(Context context) {
// TODO Determine when the Ess gallery item is available.
return true;
public boolean invoke(Context ctx) {
// TODO Invoke the Ess gallery item's user interface.
if (!isAvailable(ctx))
return false;
/** String greetee = null;
greetee =
JOptionPane.showInputDialog(Ide.getMainWindow(), "Enter your name:",
WIZARD_NAME,
JOptionPane.OK_CANCEL_OPTION);
if (greetee == null) // User canceled
return false;
JOptionPane.showMessageDialog(Ide.getMainWindow(),
"Hello " + greetee + "!", WIZARD_NAME,
JOptionPane.INFORMATION_MESSAGE);
show("Bhawna");
return true;
public String getShortLabel() {
return "Ess";
@Override
public String getLongLabel() {
return "ESS tool .";
@Override
public Icon getIcon() {
return OracleIcons.getIcon(OracleIcons.ORACLE_LOGO);
@Override
public MenuSpec getMenuSpecification() {
// By returning a MenuSpec implementation (instead of null),
// we make this wizard appear in the Tools menu.
return new MenuSpec(getShortLabel(), getIcon());
public static void show(String frame_name){
JFrame frame = new JFrame(frame_name);
frame.setPreferredSize(new Dimension(450, 300));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel top = new JPanel();
top.setLayout(new BoxLayout(top, BoxLayout.Y_AXIS));
JPanel creator = new JPanel();
creator.setLayout(new BoxLayout(creator, BoxLayout.Y_AXIS));
creator.add(top);
JFileChooser fc = new JFileChooser(new File("."));
String[] buttons = {"OK", "Cancel", "Browse"};
int rc=-1;
do {
rc = JOptionPane.showOptionDialog(
null,
creator,
frame_name,
JOptionPane.DEFAULT_OPTION,
JOptionPane.PLAIN_MESSAGE,
null,
buttons,
buttons[0]
if( rc == 1){
System.exit(0);
break;
else if(rc == 2){
int retVal = fc.showDialog(null, "Ok");
if (retVal == JFileChooser.APPROVE_OPTION)
System.out.println("File choose" + fc.getSelectedFile());
System.exit(0);
} while (rc != 0);
if( rc == 0){
frame.setVisible(true);
frame.pack();
Thanks
Bhawna.