How to Install Custom Oracle-Sun Java JDK 8 on Gentoo Gnu/Linux 64-bit Easy Visual-Guide

Oracle-Sun JDK 8 Quick Start for Gentoo Linux

Hi! The Tutorial shows you Step-by-Step How to Install Oracle-Sun Official Java SE JDK 8 x64 on GNU+Linux Gentoo 2012+ KDE4 x8664 Desktop.

The Process is a Little Beat Tedious and Intricate but it Simply Give you the Freedom to Know How to Choose Freely which JDK8 to Install.).

And this Visual Guide includes the Basic Screenshots of All GUI Steps involved.

The Content give Focus Only to the Essentials Instructions and Commands to make it Easier to Follow.

1. Download Oracle-Sun Java SE JDK 8:

   JDK 8 x64 tar.gz

   On the JDK 8 Section Select the x64.tar.gz Release

2. Extract JDK 8 tar.gz Archive

   mv /jdk*tar.gz /tmp

   tar xvzf /jdk*tar.gz

3. Open a Terminal Window
   (Press “Enter” to Execute Commands)

   How to Easy&Quick Installing Gentoo 12 KDE4 from Live DVD:
   Link Contains Guide on Installing Easily and Step-by-Step the KDE4 Desktop from Live DVD.

4. Relocate Java JDK8

   sudo chown -R root:root /tmp/jdk1.8*

   mv /tmp/jdk1.8* /opt

5. Making an Oracle JDK8 Installation Config File

   nano /usr/share/java-config-2/vm/oracle-sun-jdk8u[X]
   Just Substitute to the [X] the Correspondent Java Update Version.
   
   

   Now you can simply Just Copy, Paste and Substitute the Right Values in Sections Between “
   “

   VERSION="Oracle-Sun JDK 8u[X]"
   JAVA_HOME="/opt/jdk1.8.0_0[X]"
   JDK_HOME="/opt/jdk1.8.0_0[X]"
   JAVAC="${JAVA_HOME}/bin/javac"
   PATH="${JAVA_HOME}/bin:${JAVA_HOME}/jre/bin"
   ROOTPATH="${JAVA_HOME}/bin:${JAVA_HOME}/jre/bin"
   LDPATH="${JAVA_HOME}/jre/lib/amd64/:${JAVA_HOME}/jre/lib/amd64/native_threads/:${JAVA_HOME}/jre/lib/amd64/xawt/:${JAVA_HOME}/jre/lib/amd64/server/"
   MANPATH="/opt/icedtea-bin-8.2.2.1/man"
   PROVIDES_TYPE="JDK JRE"
   PROVIDES_VERSION="1.8"
   # Taken from sun.boot.class.path property
   BOOTCLASSPATH="${JAVA_HOME}/jre/lib/resources.jar:${JAVA_HOME}/jre/lib/rt.jar:${JAVA_HOME}/jre/lib/jsse.jar:${JAVA_HOME}/jre/lib/jce.jar:${JAVA_HOME}/jre/lib/charsets.jar"
   GENERATION="2"
   ENV_VARS="JAVA_HOME JDK_HOME JAVAC PATH ROOTPATH LDPATH MANPATH"
   VMHANDLE="oracle-jdk8"
   BUILD_ONLY="FALSE"
   

   Ctrl+x to Save and Exit.

6. Updating the System to Custom Oracle Sun JDK 8

   Make a Symlink

   ln -s /opt/jdk1.8.0_0X/ /usr/lib/jvm/oracle-sun-jdk8uX

   Find the New Oracle Java SE JDK 8 Installation

   java-config -L

   Switch System Java to the New Manually Installed Oracle JDK 8

   java-config --set-system-vm oracle-sun-jdk8uX

   Test New Oracle JDK 8 Installation

   java -version

How to Install IntelliJ IDEA for Java on Gentoo Linux
Installing IntelliJ IDEA on Gentoo Linux.

How to Install Eclipse for Java Developers on Gentoo Linux:
SetUp Eclipse Java on Gentoo Linux.