quickanalysis result sometimes throws nullexception

[tingmen123]

the method org.datacleaner.beans.StringAnalyzerResult#getMaxChars should just return Integer instead of returing int ,cause sometimes the method may throw nullexception.
@Metric("Max words") public int getMaxWords(InputColumn<?> col) { return (Integer)this.getCrosstab().where("Column", col.getName()).where("Measures", "Max words").get(); }