Github user WeichenXu123 commented on the issue:
https://github.com/apache/spark/pull/19111
I found `NaiveBayes` also possible to fail. Founded here #18538 . Hope this
can works!
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/81316/console
```
2. Error: spark.naiveBayes (@test_mllib_classification.R#482)
------------------
java.lang.IllegalArgumentException: requirement failed: The input column
stridx_5a965aeed344 should have at least two distinct values.
at scala.Predef$.require(Predef.scala:224)
at
org.apache.spark.ml.feature.OneHotEncoder$$anonfun$5.apply(OneHotEncoder.scala:113)
...
1: spark.naiveBayes(traindf, clicked ~ ., smoothing = 0) at
/home/jenkins/workspace/SparkPullRequestBuilder/R/pkg/tests/fulltests/test_mllib_classification.R:482
2: spark.naiveBayes(traindf, clicked ~ ., smoothing = 0)
3: .local(data, formula, ...)
4: callJStatic("org.apache.spark.ml.r.NaiveBayesWrapper", "fit", formula,
data@sdf,
smoothing, handleInvalid)
5: invokeJava(isStatic = TRUE, className, methodName, ...)
6: handleErrors(returnStatus, conn)
7: stop(readString(conn))
DONE
===========================================================================
Error: Test failures
Execution halted
```
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