Bug 168888 [Wizards] PageTransition classes may need rename/reorg
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/Wizard.java
defaultImage = null;
        }
    }
    /*
     * (non-Javadoc) Method declared on IWizard.
     */
    public IWizardContainer getContainer() {
        return container;
    }
    /*
     * (non-Javadoc) Method declared on IWizard.
     */
    public Image getDefaultPageImage() {
        if (defaultImage == null) {
            defaultImage = JFaceResources.getResources().createImageWithDefault(defaultImageDescriptor);
        }
        return defaultImage;
    }
    /*
     * (non-Javadoc) Method declared on IWizard.
     */
    public IDialogSettings getDialogSettings() {
        return dialogSettings;
    }
    /*
     * (non-Javadoc) Method declared on IWizard. The default behavior is to
     * return the page that was added to this wizard after the given page.
     */
    public IWizardPage getNextPage(IWizardPage page) {
        int index = pages.indexOf(page);