How to Install Oracle Java 8 (JDK 8u25) on CentOS/RHEL 6/5 and Fedora

After a long wait, finally Java SE Development Kit 8 is available to download. JDK 8 has been released on Mar,18 2014 for general availability with the many featured enhancements. You can find all the enhancements in JDK 8 here.


This article will help you to Install JAVA 8 (JDK 8u25) or update on your system. Read instruction carefully for downloading java from Linux command line. To Install Java 8 in Ubuntu and LinuxMint read This Article.

Step 1: Download JAVA Archive

Download latest Java SE Development Kit 8 release from its official download page or use following commands to download from shell.

For 64Bit

# cd /opt/
# wget --no-cookies --no-check-certificate --header "Cookie:; oraclelicense=accept-securebackup-cookie" ""

# tar xzf jdk-8u25-linux-x64.tar.gz

For 32Bit

# cd /opt/
# wget --no-cookies --no-check-certificate --header "Cookie:; oraclelicense=accept-securebackup-cookie" ""

# tar jdk-8u25-linux-i586.tar.gz

Note: If Above wget command doesn’t not worked for you watch this screencast to download JDK from terminal.

Step 2: Install JAVA using Alternatives

After extracting archive file use alternatives command to install it. alternatives command is available in chkconfig package.

# cd /opt/jdk1.8.0_25/
# alternatives --install /usr/bin/java java /opt/jdk1.8.0_25/bin/java 2
# alternatives --config java

There are 3 programs which provide 'java'.

  Selection    Command
*  1           /opt/jdk1.8.0/bin/java
 + 2           /opt/jdk1.7.0_55/bin/java
   3           /opt/jdk1.8.0_25/bin/java

Enter to keep the current selection[+], or type selection number: 3

At this point JAVA 8 has been successfully installed on your system. We also recommend to setup javac and jar commands path using alternatives

# alternatives --install /usr/bin/jar jar /opt/jdk1.8.0_25/bin/jar 2
# alternatives --install /usr/bin/javac javac /opt/jdk1.8.0_25/bin/javac 2
# alternatives --set jar /opt/jdk1.8.0_25/bin/jar
# alternatives --set javac /opt/jdk1.8.0_25/bin/javac 
Step 3: Check Version of JAVA .

Check the installed version of java using following command.

# java -version 

java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)

Step 4: Setup Environment Variables

Most of java based application’s uses environment variables to work. Set the java environment variables using following commands

  • Setup JAVA_HOME Variable
  • # export JAVA_HOME=/opt/jdk1.8.0_25
  • Setup JRE_HOME Variable
  • # export JRE_HOME=/opt/jdk1.8.0_25/jre
  • Setup PATH Variable
  • # export PATH=$PATH:/opt/jdk1.8.0_25/bin:/opt/jdk1.8.0_25/jre/bin

12 thoughts on “How to Install Oracle Java 8 (JDK 8u25) on CentOS/RHEL 6/5 and Fedora

  1. Thank you so much.

    Maybe useful for other readers:
    – On a vanilla fedora (or at least on my system), ‘alternatives’ doesn’t seem to be in the path, so the full path has to be specified:
    sudo /usr/sbin/alternatives –install /usr/bin/java java /opt/jdk1.8.0_05/bin/java 2
    sudo /usr/sbin/alternatives –config java

    – In case folks are not familar, the export commands can go into ~/.bash_profile , but careful not to overwrite your existing “PATH”, instead append to it. This is an example of my ~/.bash_profile
    # .bash_profile

    # Get the aliases and functions
    if [ -f ~/.bashrc ]; then
    . ~/.bashrc

    # User specific environment and startup programs


    export JAVA_HOME=/opt/jdk1.8.0_05
    export JRE_HOME=/opt/jdk1.8.0_05/jre
    export PATH

    Hope it helps.

  2. Thanks for the instructions first. I followed all the steps on CentOS. However, I got No such file or directory after typing “java -version”. Any idea what might have caused it?

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