Bug 6238 jar packager: ide freezes on page flip, no progress shown
i selected org.eclipse.jdt.ui org.eclipse.jdt.ui.tests.refactoring (couple thousands of files) and opened the jar packager or flipping the page the whole ide froze. and there was no progress report shown. it took more or less 2 minutes - of total freeze - to flip to the other wizard page. i suggest performing it in another thread and showing progress
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarPackageWizardPage.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) {
			String[] directoryNames= settings.getArray(STORE_DESTINATION_NAMES);
			if (directoryNames == null)
				directoryNames= new String[0];
			directoryNames= addToHistory(directoryNames, getDestinationValue());
			settings.put(STORE_DESTINATION_NAMES, directoryNames);
			settings.put(STORE_EXPORT_CLASS_FILES, fJarPackage.areClassFilesExported());
			settings.put(STORE_EXPORT_JAVA_FILES, fJarPackage.areJavaFilesExported());
			
			settings.put(STORE_COMPRESS, fJarPackage.isCompressed());
			settings.put(STORE_OVERWRITE, fJarPackage.allowOverwrite());
		}
		
		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.