scalala/Scalala — Issue #30: Error occurs during the build of distributable jar
Author: Vinnipeg
Created: 2011-10-09 18:25:43+00:00
State: open

What steps will reproduce the problem?
1. sbt proguard

Following error occurs:

proguard: java.io.IOException: Can't read [/home/andrew/jdk1.7/jre/lib/rt.jar] Can't process class [com/oracle/net/Sdp$1.class] (Unsupported version number [51.0] for class format))

What version of the product are you using? On what operating system?

java version "1.7.0"
Java(TM) SE Runtime Environment (build 1.7.0-b147)
Java HotSpot(TM) 64-Bit Server VM (build 21.0-b17, mixed mode)

I googled that its because build process invoke proguad 4.6, which dont suppot jdk7, instead of new proguard-4.7