contains core /common parts of egradle:

• src/main/java : core parts, no dependencies to eclipse

• src/main/java-groovy : groovy antlr parts: https://github.com/apache/groovy commit : bf3f467 2016-11-17

• src/main/java-eclipse: eclipse parts

• src/test/java-eclipse: contains testcases only executable with "Run as ... junit test "in eclipse IDE, but not by gradle build