A WiP PR of mine is failing in mima: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/54525/consoleFull
[info] spark-examples: previous-artifact not set, not analyzing binary compatibility java.lang.RuntimeException: bad constant pool tag 50 at byte 12 at com.typesafe.tools.mima.core.ClassfileParser$ConstantPool.errorBadTag(ClassfileParser.scala:204) at com.typesafe.tools.mima.core.ClassfileParser$ConstantPool.<init>(ClassfileParser.scala:106) at com.typesafe.tools.mima.core.ClassfileParser.parseAll(ClassfileParser.scala:67) at com.typesafe.tools.mima.core.ClassfileParser.parse(ClassfileParser.scala:59) at com.typesafe.tools.mima.core.ClassInfo.ensureLoaded(ClassInfo.scala:86) at com.typesafe.tools.mima.core.ClassInfo.methods(ClassInfo.scala:101) at com.typesafe.tools.mima.core.ClassInfo$$anonfun$lookupClassMethods$2.apply(ClassInfo.scala:123) at com.typesafe.tools.mima.core.ClassInfo$$anonfun$lookupClassMethods$2.apply(ClassInfo.scala:123) ... That's the kind of message which hints at some kind of JVM versioning mismatch, but, AFAIK, I'm (a) just pulling in java 6/7 libraries and (b) skipping the hadoop-2.6+ module anyway. Any suggestions to make the stack trace go away