jdk 1.6.0_45 oracle jdk1.6 C:\Program Files\Java\jdk1.6.0_45 jdk 1.7.0_51 oracle jdk1.7 C:\Program Files\Java\jdk1.7.0_51 jdk 1.8.0_11 oracle jdk1.8 C:\Program Files\Java\jdk1.8.0_11