rpm -qa | grep jdk
Find your package
rpm -e jdk-1.7.0_05-fcs.x86_64
rpm -qa | grep jdk
reinstall jdk
jdk-6u33-linux-x64-rpm.bin
lrwxrwxrwx. 1 root root 21 Aug 6 11:39 latest -> /usr/java/jdk1.6.0_33
[root@oraappman java]# java -version
java version "1.6.0_33"
Java(TM) SE Runtime Environment (build 1.6.0_33-b04)
Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03, mixed mode)