public String toString() {
            return val + " " + cnt;
        }
Be careful -- for CJK languages, the default analyzer uses character
bigrams.  You will "ignore" all cjk language tokens if you set
minTokenLength > 2!

@param minTokenLength -- include tokens of this length or greater.
tika-eval/tika-eval-core/src/main/java/org/apache/tika/eval/core/textstats/TextProfileSignature.java