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
/**
	 *	Open an appropriate destination browser so that the user can specify a source
	 *	to import from
	 */
	protected void handleDescriptionFileBrowseButtonPressed() {
		SaveAsDialog dialog= new SaveAsDialog(getContainer().getShell());
		dialog.create();
		dialog.getShell().setText(JarPackagerMessages.getString("JarPackageWizardPage.saveAsDialog.title")); 
		dialog.setMessage(JarPackagerMessages.getString("JarPackageWizardPage.saveAsDialog.message")); 
		dialog.setOriginalFile(createFileHandle(fJarPackage.getDescriptionLocation()));
		if (dialog.open() == dialog.OK) {
			IPath path= dialog.getResult();
			path= path.removeFileExtension().addFileExtension(JarPackage.DESCRIPTION_EXTENSION);
			fDescriptionFileText.setText(path.toString());
		}
	}
	/**
	 *	Open an appropriate destination browser so that the user can specify a source
	 *	to import from
	 */
	protected void handleDestinationBrowseButtonPressed() {
		FileDialog dialog= new FileDialog(getContainer().getShell(), SWT.SAVE);
		dialog.setFilterExtensions(new String[] {"*.jar"}); 
		String currentSourceString= getDestinationValue();
		int lastSeparatorIndex= currentSourceString.lastIndexOf(File.separator);
		if (lastSeparatorIndex != -1) {
			dialog.setFilterPath(currentSourceString.substring(0, lastSeparatorIndex));
			dialog.setFileName(currentSourceString.substring(lastSeparatorIndex + 1, currentSourceString.length()));
		}
		else