Re: IncompatibleClassChangeError

2016-04-15 Thread Michael D. Coon
Thanks. I can't copy/paste stack trace since it's on an internal system. I'll do my best to hand-type the thing in here: java.lang.IncompatiableClassChangeError at scala.collection.immutable.StringLink$class.format(StringLink.scala:318)at scala.collection.imutable.StringOps.format(StringOps.scala:

Re: IncompatibleClassChangeError

2016-04-15 Thread Ismael Juma
Hi Michael, We would need more information to be able to help. We don't serialize scala objects and clients should be able to use different Scala versions than the broker. Do you have a stacktrace of when the exception is thrown? Ismael On Fri, Apr 15, 2016 at 2:39 PM, Michael D. Coon wrote: >

IncompatibleClassChangeError

2016-04-15 Thread Michael D. Coon
We are seeing odd behavior that we need to understand. We are getting IncompatibleClassChangeErrors and I know that's related to a Scala version mismatch. What's not clear, however, is where or why the mismatch is occurring. We know up front that there were occasions where we ran apps that had S