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
protected IFile createFileHandle(IPath filePath) {
		if (filePath.isValidPath(filePath.toString()) && filePath.segmentCount() >= 2)
			return JavaPlugin.getWorkspace().getRoot().getFile(filePath);
		else
			return null;
	}
	/**
	 * Creates a folder resource handle for the folder with the given workspace path.
	 *
	 * @param folderPath the path of the folder to create a handle for
	 * @return the new folder resource handle
	 */
	protected IFolder createFolderHandle(IPath folderPath) {
		if (folderPath.isValidPath(folderPath.toString()) && folderPath.segmentCount() >= 2)
			return JavaPlugin.getWorkspace().getRoot().getFolder(folderPath);
		else
			return null;
	}
	/**
	 * Returns the status of this operation.
	 * If there were any errors, the result is a status object containing
	 * individual status objects for each error.
	 * If there were no errors, the result is a status object with error code <code>OK</code>.
	 *
	 * @return the status of this operation
	 */
	public IStatus getStatus() {
		if (fProblems.getSeverity() == IStatus.ERROR) {
			String message= null;
			if (fDescriptionFiles != null && fDescriptionFiles.length > 1)