How to remove OpenJDK in CentOS? Steps to remove OpenJDK from CentOS
The installed CentOS will come with OpenJdk, use the command Java -version, there will be the following information:
java version "1.6.0"
OpenJDK Runtime Environment (build 1.6.0-b09)
OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode)
It is best to uninstall openjdk first and then install sun company's jdk.
Check rpm -qa | grep java
Display the following information:
java-1.4.2-gcj-compat-1.4.2.0-40jpp.115
java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5
uninstall:
rpm -e --nodeps java-1.4.2-gcj-compat-1.4.2.0-40jpp.115
rpm -e --nodeps java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5
There are some other commands
rpm -qa | grep gcj
rpm -qa | grep jdk
If the openjdk source cannot be found, you can also uninstall it like this
yum -y remove java java-1.4.2-gcj-compat-1.4.2.0-40jpp.115
yum -y remove java java-1.6.0-openjdk-1.6.0.0-1.7.b09.el5
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