IOutputFolderQuery query= fInformationProvider.getOutputFolderQuery();
OutputFolderQuery query= fInformationProvider.getOutputFolderQuery();
    public void run(IProgressMonitor monitor) throws InvocationTargetException {        List result= null;        try {            List elements= getSelectedElements();            IJavaProject project= fInformationProvider.getJavaProject();            IOutputFolderQuery query= fInformationProvider.getOutputFolderQuery();            result= addToClasspath(elements, project, query, monitor);        } catch (CoreException e) {            fException= e;            result= null;        }       super.handleResult(result, monitor);    }