protected void put(final String threadId, final String frameId, final String name) {
      Map<String, Set<String>> threadVars = myData.get(threadId);
      if (threadVars == null) myData.put(threadId, (threadVars = new HashMap<>()));

      Set<String> frameVars = threadVars.get(frameId);
      if (frameVars == null) threadVars.put(frameId, (frameVars = new HashSet<>()));

      frameVars.add(name);
    }
protected void put(final String threadId, final String frameId, final String name)