daedalus john # eix java-config * dev-java/java-config Available versions: 1.2.11-r1 1.3.0-r2 [M]1.3.0-r3 2.0.26-r4 2.0.26-r5 [M]2.0.26-r6 Installed: 1.3.1 2.0.27 Homepage: http://www.gentoo.org/proj/en/java/ Description: Java environment configuration tool See line 82 onwards of jc_util.py Add an exception or ensure envVmHandle is set
It is generally good to include the stack trace you are getting.
Should be fixed in 1.3.1-r1
This would be fixed in 1.3.1-r1 as said by Caster.