Bug 8476 JAR Packager: Make main class field editable
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarManifestWizardPage.java
* in the next instance of this page. Subclasses wishing to persist
	 * settings for their controls should extend the hook method 
	 * <code>internalSaveWidgetValues</code>.
	 */
	public final void saveWidgetValues() {
		IDialogSettings settings= getDialogSettings();
		if (settings != null) {
			
			settings.put(STORE_GENERATE_MANIFEST, fJarPackage.isManifestGenerated());
			settings.put(STORE_SAVE_MANIFEST, fJarPackage.isManifestSaved());
			settings.put(STORE_REUSE_MANIFEST, fJarPackage.isManifestReused());
			settings.put(STORE_MANIFEST_LOCATION, fJarPackage.getManifestLocation().toString());
			
			settings.put(STORE_SEAL_JAR, fJarPackage.isJarSealed());
			}
		
		internalSaveWidgetValues();
	}
	/**
	 * Hook method for subclasses to persist their settings.
	 */
	protected void internalSaveWidgetValues() {
	}
	/**
	 *	Hook method for restoring widget values to the values that they held
	 *	last time this wizard was used to completion.
	 */
	protected void restoreWidgetValues() {
		if (!fJarPackage.isUsedToInitialize())
			initializeJarPackage();