When he started already installed jdk, and view the command as follows
1. [Root @ localhost jdk] # rpm-qa | grep jdk
[Root @ localhost jdk] # rpm-qa | grep jdk
View the system comes with jdk version
1. [Root @ localhost jdk] # rpm-qa | grep gcj
[Root @ localhost jdk] # rpm-qa | grep gcj
1. [Root @ localhost jdk] # yum-y remove java java-1.4.2-gcj-compat-220.127.116.11-40jpp.115
[Root @ localhost jdk] # yum-y remove java java-1.4.2-gcj-compat-18.104.22.168-40jpp.115
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