Dongkyu Hwangbo

TAJO-2058: foreach loop can be collapsed with stream api

4

I replace many foreach loop with stream api.

TAJO-1969: Replace Anonymous class with Lambda expression

2

I replace All anonymous classes with lambda expressions. Lambda syntax is not supported under Java 1.7 or earlier JVMs.

Currently, LiteralType.Unsigned_Large_Integer is not returned in LiteralValue::getLiteralType.

Currently, User cannot build with `-Denv={version}` argument when user want to build except CDH 5.4.0. I think `-Denv` argument is needless. to build with various hadoop version, just essential is...