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
if (dirtyEditors[i].getEditorInput() instanceof IFileEditorInput) {
					IFile dirtyFile= ((IFileEditorInput)dirtyEditors[i].getEditorInput()).getFile();
					if (selection.contains(dirtyFile)) {
						unsavedFiles.add(dirtyFile);
						addError(JarPackagerMessages.getFormattedString("JarFileExportOperation.fileUnsaved", dirtyFile.getFullPath()), null); 
					}
				}
			}
			if (!unsavedFiles.isEmpty())
				return false;
		}
		return true;
	}
	protected void saveFiles() {
		
		if (fJarPackage.isManifestSaved()) {
			try {
				saveManifest();
			} catch (CoreException ex) {
				addError(JarPackagerMessages.getString("JarFileExportOperation.errorSavingManifest"), ex); 
			} catch (IOException ex) {
				addError(JarPackagerMessages.getString("JarFileExportOperation.errorSavingManifest"), ex); 
			}
		}
		
		
		if (fJarPackage.isDescriptionSaved()) {
			try {
				saveDescription();
			} catch (CoreException ex) {