Bug 5853 Jar packager: progress reporting not optimal
- follow smoke test until step "Create a Jar from a Jar Package Description" - do the steps observe: the progress bar show 100% right from the beginning.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarFileExportOperation.java
private JarWriter fJarWriter;
	private JarPackage fJarPackage;
	private IFile[] fDescriptionFiles;
	private Shell fParentShell;
	private Map fJavaNameToClassFilesMap;
	private IContainer fClassFilesMapContainer;
	private MultiStatus fProblems;
	
	/**
	 * Creates an instance of this class.
	 *
	 * @param	jarPackage	the JAR package specification
	 * @param	parent	the parent for the dialog,
	 * 			or <code>null</code> if no dialog should be presented
	 */
	public JarFileExportOperation(JarPackage jarPackage, Shell parent) {
		this(parent);
		fJarPackage= jarPackage;
	}
	/**