How-to Install Custom Oracle-Sun Java JDK 7 on Gentoo GNU/Linux 64bit Easy Visual-Guide

October 25th, 2012 by Regaz

Oracle-Sun JDK 7 Quick-Start for Gentoo Linux

The Linux Tutorial Shows You Step-by-Step How-to Install the Latest Oracle-Sun Official Java SE JDK 7 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 JDK 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 Understand;)

Java On Sabayon
  1. Download Oracle-Sun Java SE JDK 7:

    JDK 7 x64.tar.gz
  2. Extract JDK 7 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 JDK

    sudo su

    If Got “User is Not in Sudoers file” then Look: Solution

    chown -R root:root /tmp/jdk1.7*

    Then to shift the Oracle JDK 7 contents

    mv /tmp/jdk1.7* /opt
  5. Making an Oracle JDK Installation Config File

    nano /usr/share/java-config-2/vm/oracle-sun-jdk7u[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 7u[X]"
    JAVA_HOME="/opt/jdk1.7.0_0[X]"
    JDK_HOME="/opt/jdk1.7.0_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/:${JAVA_HOME}/jre/lib/amd64/server/"
    MANPATH="/opt/icedtea-bin-7.2.2.1/man"
    PROVIDES_TYPE="JDK JRE"
    PROVIDES_VERSION="1.7"
    # Taken from sun.boot.class.path property
    BOOTCLASSPATH="${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-jdk7"
    BUILD_ONLY="FALSE"
    

    Ctrl+x to Save and Exit

  6. Updating the System to Custom Oracle Sun JDK 7

    Make a Symlink

    ln -s /opt/jdk1.7.0_0X/ /usr/lib/jvm/oracle-sun-jdk7uX

    Find the New Oracle Java SE JDK 7 Installation

    java-config -L

    Switch System Java to the New Manually Installed Oracle JDK 7

    java-config --set-system-vm oracle-sun-jdk7uX

    Test New Oracle JDK 7 Installation

    java -version
  7. 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.

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