How to install Sun Java JDK in CentOS 6, OpenSUSE and Debian/Ubuntu


Some times some application needs only Sun Java, It will refuce to work in other version (eg. OpenJDK).

CentOS, Debian/Ubuntu method

But by default OpenJDK based java was installed in my system.

[root@server2 sandbox]# java -version
java version “1.6.0_17”
OpenJDK Runtime Environment (IcedTea6 1.7.9) (rhel-1.36.b17.el6_0-x86_64)
OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode)

Step 1: Donwload JDK from http://www.java.com. I got JDK version 7 in rpm format.

mohamed@SilentStorm $ ls *.rpm
jdk-7-linux-x64.rpm

Step 2: Install the RPM.

[root@server2 sandbox]# rpm -i jdk-7-linux-x64.rpm
Unpacking JAR files…
rt.jar…
jsse.jar…
charsets.jar…
tools.jar…
localedata.jar…

By default Java will be installed to /usr/java/jdk1.7.0/

Step 3:  Add this new java to the alternatives configuration & Update the java alternatives

[root@server2 sandbox]# alternatives – –install /usr/bin/java java /usr/java/jdk1.7.0/bin/java 2
[root@server2 sandbox]# alternatives – –config java

There are 3 programs which provide ‘java’.

Selection Command
———————————————–
*+ 1 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java
2 /usr/lib/jvm/jre-1.5.0-gcj/bin/java
3 /usr/java/jdk1.7.0/bin/java

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

Step 4: Now verify the java version

[root@server2 sandbox]# java -version
java version “1.7.0”
Java(TM) SE Runtime Environment (build 1.7.0-b147)
Java HotSpot(TM) 64-Bit Server VM (build 21.0-b17, mixed mode)

OpenSUSE way is here

# rpm -i jdk-7-linux-i586.rpm
Unpacking JAR files…
rt.jar…
jsse.jar…
charsets.jar…
tools.jar…
localedata.jar…
plugin.jar…
javaws.jar…
deploy.jar…

# update-alternatives – –install /usr/bin/java java /usr/java/jdk1.7.0/bin/java 2
# update-alternatives – –config java

There are 3 alternatives which provide `java’.
Selection    Alternative
———————————————–
*+        1    /usr/lib/jvm/jre-1.6.0-openjdk/bin/java
2    /usr/lib/jvm/jre-1.5.0-gcj/bin/java
3    /usr/java/jdk1.7.0/bin/java
Press enter to keep the default[*], or type selection number: 3
Using ‘/usr/java/jdk1.7.0/bin/java’ to provide ‘java’.
# java -version
java version “1.7.0”

Congrats! you have made it.

17 thoughts on “How to install Sun Java JDK in CentOS 6, OpenSUSE and Debian/Ubuntu

  1. in order to get jdk working, you need config javac as well. something like this:
    sudo alternatives –install /usr/bin/javac javac /usr/java/jdk1.6.0_37/bin/javac 2
    sudo alternatives –config javac

  2. […] Originally Posted by jb10809 Hello bigrigdriver, Thank you for sharing your insights…will try new approach ( add 32 bit java to PC and use 32 bit Firefox).

    Hello, Opensuse has some default install open java implementation (open-Java), which includes IceTea, this is the plugin to run applets on FireFox. However, sometimes, you would need the Oracle java (which i have =( ). The steps are (pretty much is the same as the links that i'm providing):

    1. download java instaler
    2. unzip the installer (if you go for the packed) or run the RPM
    3. provide a Path
    4. removed the Iced-tea plugin
    5. add the Java plugin into Firefox
    6. start firefox
    7. finally, pray =D I just performed those steps and my applets are running as should.

    I'll give you some links that may be helpful: http://java.com/en/download/help/linux_install.xml https://mohammadthalif.wordpress.com/…in-centos-6-2/ […]

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