if (!fTreeViewer.getControl().isEnabled())
if (fImportWizard && !fTreeViewer.getControl().isEnabled())
	protected void handleInputChanged() {		fJarImportData.setRefactoringHistory(null);		fJarImportData.setRefactoringFileLocation(null);		setErrorMessage(null);		setPageComplete(true);		handleJarFileChanged();		if (isPageComplete())			handlePackageFragmentRootChanged();		if (!fTreeViewer.getControl().isEnabled())			setErrorMessage(JarImportMessages.JarImportWizardPage_no_jar_files);		getContainer().updateButtons();	}