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/Wizard.java
return needsProgressMonitor;
    }
    /**
     * The <code>Wizard</code> implementation of this <code>IWizard</code>
     * method does nothing and returns <code>true</code>. Subclasses should
     * reimplement this method if they need to perform any special cancel
     * processing for their wizard.
     */
    public boolean performCancel() {
        return true;
    }
    /**
     * Subclasses must implement this <code>IWizard</code> method to perform
     * any special finish processing for their wizard.
     */
    public abstract boolean performFinish();
    /*
     * (non-Javadoc) Method declared on IWizard.
     */
    public void setContainer(IWizardContainer wizardContainer) {
        container = wizardContainer;
    }
    /**
     * Sets the default page image descriptor for this wizard.
     * <p>
     * This image descriptor will be used to generate an image for a page with
     * no image of its own; the image will be computed once and cached.
     * </p>
     * 
     * @param imageDescriptor