2.6.1. Oracle JDK 1.6 update 31

Check the version. From a terminal window, type:

java -version

Optional - Uninstall the Java package if the JDK version is less than v1.6 update 31.

rpm -qa | grep java
yum remove {java-1.*}

Optional - Verify that the default Java package is uninstalled.

which java

Download the Oracle 64-bit JDK (jdk-6u31-linux-x64.bin) from the Oracle download site. From your browser window, go to http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javase6-419409.html#jdk-6u31-oth-JPR.

Accept the license agreement and download jdk-6u31-linux-x64.bin to a temporary directory ($JDK_download_directory).

Change directory to the location where you downloaded the JDK and run the install.

mkdir /usr/jdk1.6.0_31
cd /usr/jdk1.6.0_31
chmod u+x $JDK_download_directory/jdk-6u31-linux-x64.bin
./$JDK_download_directory/jdk-6u31-linux-x64.bin 

Create symbolic links (symlinks) to the JDK.

mkdir /usr/java
ln -s /usr/jdk1.6.0_31/jdk1.6.0_31 /usr/java/default
ln -s /usr/java/default/bin/java /usr/bin/java

Set up your environment to define JAVA_HOME to put the Java Virtual Machine and the Java compiler on your path.

export JAVA_HOME=/usr/java/default
export PATH=$JAVA_HOME/bin:$PATH

Verify if Java is installed in your environment. Execute the following from the command line console:

java -version

You should see the following output:

java version "1.6.0_31"
Java(TM) SE Runtime Environment (build 1.6.0_31-b04)
Java HotSpot(TM) 64-Bit Server VM (build 20.6-b01, mixed mode)