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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