final RepositoryCache repoCache = runningState.repositoryCache();
scan(true, writer, new Callable<Void>() {
@Override
public Void call() throws Exception {
// Scan each of the workspace-path pairs ...
ScanOperation op = new ScanOperation() {
@Override
public void scan( String workspaceName,
Path path ) {
NodeCache workspaceCache = repoCache.getWorkspaceCache(workspaceName);
if (workspaceCache != null) {