How to install JRE 7 in EBS R12.1.3

Beauty_and_dBest

    EBS R12.1.3

    11g

    OL6

     

     

    I ALL,

     

    I am login to the Database Tier as   "oracle"  user and owner.

    I checked the JRE version using the command > java -version

     

    $ java -version

    java version "1.6.0_05"

    Java(TM) SE Runtime Environment (build 1.6.0_05-b13)

    Java HotSpot(TM) Server VM (build 10.0-b19, mixed mode)

     

     

    I am upgrading our apps & db to 12.2 & 12c, and the requirement is to install JRE 7.

    Do I need to backup the old JRE 6? Before I install JRE 7?

     

     

    Kind regards,

    jc