When you install linux OS on either virtual machines or physical machines then it comes with open jdk version 1.6 or 1.7 or both (In my case both on oracle linux 6.5). Well this is not a problem but sometimes you required to install the products (OSB, SOA, Weblogic etc.) which is certified with different jdk vendor or version. In that case you are required to remove the open jdk and install the jdk version you required (although you can install the new jdk version without removing older one i.e. you need to set the environment variable JAVA_HOME which is pointing to new jdk).
Here are the steps:
Check JDK installation
Run the command: java -version
Removing JDK
Run the command: yum remove java*
This command will search for all the java version and will show you all the available jdk version and ask for permission if you want to remove Y/N.
Here are the steps:
Check JDK installation
Run the command: java -version
Removing JDK
Run the command: yum remove java*
This command will search for all the java version and will show you all the available jdk version and ask for permission if you want to remove Y/N.
Enter 'y' to remove the jdk. After that verify jdk by running the command "java -version", you will get the following out put : bash: /usr/bin/java: No such file or directory
Install the new JDK Version
Go to the following link for how to install jdk on linux
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