scala - java.util.ConcurrentModificationException in CountVectorizer -

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i'm getting java.util.concurrentmodificationexception exception in following block of quote

val cvmodel: countvectorizermodel = new countvectorizer().     setinputcol("filtered").     setoutputcol("countvector").     setvocabsize(50000).     setmindf(20).     fit(cleanedtokenized)

i using spark 2.0. how can resolve error?


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