private synchronized void store() {
    if (isTracking) {
      isTracking = false;
      if (trace != null) {
        trace.printStackTrace(System.err);
      }
      throw new IllegalStateException("Previous test did not call assertDisposed() - see 'Caused by:' for its stacktrace", trace);
    }
    trace = new Throwable();
    myLibraryTable = LibraryTablesRegistrar.getInstance().getLibraryTable();
    stored = dumpAll();
    isTracking = true;
  }
private synchronized void store()