Github user myui commented on the issue:
https://github.com/apache/incubator-hivemall/pull/126
@takuti CI error is happening. Unit test is failing.
```
[ERROR]
/home/travis/build/apache/incubator-hivemall/core/src/test/java/hivemall/ftvec/scaling/L1NormalizationUDFTest.java:[63,41]
unreported exception org.apache.hadoop.hive.ql.metadata.HiveException; must be
caught or declared to be thrown
```---
