language: java
jdk: 
  - oraclejdk7
  - openjdk7
  - openjdk6
before-script: mvn help:active-profiles

language: java
jdk: 
  - oraclejdk7
  - openjdk7
before_install: mvn help:active-profiles

Remove openjdk6, list active profiles before install command
Remove openjdk6, list active profiles before install command