full-kilobyte-93429
03/31/2017, 11:29 PMxsbti/Logger
is from the shaded zinc jar, that was probably compiled by jdk8 and cached. test tries to compile with jdk7
java.lang.UnsupportedClassVersionError: xsbti/Logger : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)