Filters not working properly

[rcriosbr]

I have set FrequencyAnalyzer with my set of stop words using frequencyAnalyzer.setStopWords(stopWords);. stopWords is a simple Set<String>.

After that the word cloud is rendered, some words that are present into stopWords are included into the cloud image. I debugged the code I can see that the StopWordFilter was properly initialized with my list.

The second problem is that WordSizeFilter is also not working properly. I'm using the default minWordLength (3), but my rendered image cloud contains words with 1 and 2 characters...

I didn't managed to get inside Lambda, but as far as I understood, Kumo delegates to it applying the filters (Lambda.filter(compositeFilter, words);).

Probably it has a problem, or I'm missing something. Please, could you help me? I attached the text file from which I'm trying to generate a cloud (it's in portuguese).
profiler.txt

Is there