Github user myui commented on the issue:
https://github.com/apache/incubator-hivemall/pull/35
@maropu test is failing for v2.1.
```
Saving to
outputFile=/home/travis/build/apache/incubator-hivemall/spark/spark-common/target/scalastyle-output.xml
Processed 3 file(s)
Found 0 errors
Found 0 warnings
Found 0 infos
Finished in 667 ms
error
file=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/src/test/scala/org/apache/spark/sql/QueryTest.scala
message=Header does not match expected text line=2
error
file=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/src/test/scala/org/apache/spark/sql/catalyst/plans/PlanTest.scala
message=Header does not match expected text line=2
error
file=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
message=import.ordering.wrongOrderInGroup.message line=22 column=0
error
file=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/HivemallOpsSuite.scala
message=import.ordering.wrongOrderInGroup.message line=30 column=0
error
file=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/src/test/scala/org/apache/spark/sql/hive/test/TestHiveSingleton.scala
message=Header does not match expected text line=2
error
file=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/src/test/scala/org/apache/spark/sql/test/SQLTestData.scala
message=Header does not match expected text line=2
error
file=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/src/test/scala/org/apache/spark/sql/test/SQLTestUtils.scala
message=Header does not match expected text line=2
error
file=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/src/test/scala/org/apache/spark/sql/test/VectorQueryTest.scala
message=import.ordering.missingEmptyLine.message line=25 column=0
Saving to
outputFile=/home/travis/build/apache/incubator-hivemall/spark/spark-2.1/target/scalastyle-output.xml
Processed 25 file(s)
Found 8 errors
Found 0 warnings
Found 0 infos
Finished in 2737 ms
[ERROR] Failed to execute goal
org.scalastyle:scalastyle-maven-plugin:0.8.0:check (default-cli) on project
hivemall-spark: Failed during scalastyle execution: You have 8 Scalastyle
violation(s). -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e
switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions,
please read the following articles:
[ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the
command
[ERROR] mvn -rf :hivemall-spark
The command "mvn -q scalastyle:check test -Pspark-2.1" exited with 1.
```
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