Page Comparison

Each WSO2 product is a Java application. Therefore, in order to install them, it is necessary to install Java Development Kit first and then set the environment variables.

...

Establish a SSH connection to the Linux machine or log to the text Linux console. You should either log in as root or obtain root permissions after login via su or sudo command.

Step 1. Check if JDK is Already Installed

In order to check if Java Development Kit is installed on the computer, do the following.

1. Execute the following command:

java -version

Image RemovedImage Added

The system displays information on the currently installed Java applications.

In case the needed JDK version is not installed on the computer, proceed to Step 2 to install it.

Step 2. Install Java Development Kit (JDK)

For Ubuntu, Debian

1. Execute the following command to add the repository:

sudo add-apt-repository ppa:sun-java-community-team/sun-java6

Image RemovedImage Added

2. Execute the following commands to update the repository and install JDK:

...

4. After the installation process is complete, jdk and jre are installed to /usr/lib/jvm/<java> directory, where <java> is the actual java installation folder. For example, /usr/lib/jvm/java-6-sun.

For CentOS, RedHat and Fedora

1. Download sun-JDK from the official Oracle site. Open a Web browser and access the following URL:

...

sudo /usr/sbin/alternatives --install /usr/bin/java java /usr/java/latest/bin/java 2

Image RemovedImage Added

5. Choose which version of JDK to use:

...

For example, to use the sun-jdk, choose "3" and press "Enter."

Image RemovedImage Added

6. Check the installed and configured JDK by typing following command:

...

The output will show you the version of the JDK installed in your system.

Image RemovedImage Added

7. Add JAVA_HOME to your PATH:

export JAVA_HOME=/usr/java/jdk1.6.0_25

...

Note: