javacentosinstallationdowngradejavapns

How to Downgrade java version in centos?


I have installed java in Centos 6.7 with version:

java -version
java version "1.6.0_38"
OpenJDK Runtime Environment (IcedTea6 1.13.10) (rhel-1.13.10.0.el6_7-x86_64)
OpenJDK 64-Bit Server VM (build 23.25-b01, mixed mode)

I want to Downgrade the java version to

java -version
java version "1.6.0_17"
OpenJDK Runtime Environment (IcedTea6 1.7.10) (rhel-1.20.b17.el5-x86_64)
OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode)

How to achieve this ?


Solution

  • Install the version you need ,

    # cd /<place you want java installed>/
    # wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/<version>/jdk-<version>-linux-x64.tar.gz"
    
    # tar xzf jdk-<version>-linux-x64.tar.gz
    

    Install Java with alternatives,

    # cd /<place java install>/jdk1.6.0_17/
    # alternatives --install /usr/bin/java java /opt/jdk1.6.0_17/bin/java 2
    # alternatives --config java
    

    Then select the version want

    There are 2 programs which provide 'java'.
    
    Selection    Command
    -----------------------------------------------
    * + 1           /opt/jdk1.6.0_38/bin/java
    2           /opt/jdk1.6.0_17/bin/java
    
    Enter to keep the current selection[+], or type selection number: 
    

    Enter 2