change Mac JDK requirement to 6 am: 611a2f4 am: 3b1f66c
am: 0619ef2

* commit '0619ef243f887119b921d0874b155287ace70edc':
  change Mac JDK requirement to 6

Change-Id: I8a35ad475c64aa7d687398100c0e3df76777d14a