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From Jagadish Venkatraman <>
Subject Re: Review Request 51824: SAMZA-1016 Fix support for 'joint compilation' of scala and java sources
Date Mon, 12 Sep 2016 21:21:07 GMT

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(Updated Sept. 12, 2016, 9:21 p.m.)

Review request for samza, Boris Shkolnik, Chris Pettitt, Jake Maes, Navina Ramesh, Xinyu Liu,
and Yi Pan (Data Infrastructure).

Repository: samza

Description (updated)

The Samza gradle settings are not setup correctly for joint compilation of Java and Scala.
When javac runs before scalac, the .java files that import scala classes will fail compilation.
This is because scalac has not run (and hence, has not compiled the imported scala sources
to class files). The reverse problem occurs when scalac is run before javac - ie. the .scala
files that import java classes will fail compilation.
"Joint compilation" refers to compiling scala and java as a single compilation unit. This
will run the `scala` plugin to joint compile both java and scala sources.


  build.gradle 004c81e9173c22dee3e282aad2a58a34a3e46fe2 
  checkstyle/checkstyle.xml 770b5e7f7a091198bbf53b3908600f9ac0caa4c7 16e1f5d43f0415c511689480f8cb67d84e2baadf 
  samza-core/src/test/java/org/apache/samza/container/ 9661885c1278c0d1cf53aae61f502ae719adfd51




`./gradlew build` succeeds, and all unit tests pass


Jagadish Venkatraman

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