Bug 331335 [Wizards] Bad implementation of IWizard's dispose() method can prevent the dialog from closing
If there is bad client code in an IWizard's dispose() method, the dialog get into a state where it cannot be closed. ------------ Run this code and try to close the wizard dialog, you will not be able to. Display display = new Display(); Wizard wizard = new Wizard() { public boolean performFinish() { return true; } public void dispose() { throw new RuntimeException(); } }; WizardDialog dialog = new WizardDialog(null, wizard); dialog.open(); display.dispose(); ------------ java.lang.RuntimeException at Main$5.dispose(Main.java:142) at org.eclipse.jface.wizard.WizardDialog.hardClose(WizardDialog.java:859) at org.eclipse.jface.wizard.WizardDialog.close(WizardDialog.java:484) at org.eclipse.jface.window.Window.handleShellCloseEvent(Window.java:741) at org.eclipse.jface.window.Window$3.shellClosed(Window.java:687) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:98)
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/WizardDialog.java
*/
	public WizardDialog(Shell parentShell, IWizard newWizard) {
		super(parentShell);
		setShellStyle(SWT.CLOSE | SWT.MAX | SWT.TITLE | SWT.BORDER
				| SWT.APPLICATION_MODAL | SWT.RESIZE | getDefaultOrientation());
		setWizard(newWizard);
		
		
		cancelListener = new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				cancelPressed();
			}
		};
	}
	/**
	 * About to start a long running operation triggered through the wizard.
	 * Shows the progress monitor and disables the wizard's buttons and
	 * controls.
	 * 
	 * @param enableCancelButton
	 *            <code>true</code> if the Cancel button should be enabled,
	 *            and <code>false</code> if it should be disabled
	 * @return the saved UI state
	 */
	private Object aboutToStart(boolean enableCancelButton) {
		Map savedState = null;
		if (getShell() != null) {
			
			Control focusControl = getShell().getDisplay().getFocusControl();
			if (focusControl != null && focusControl.getShell() != getShell()) {