Answer Posted / hari krishna.y

First select the JDK version that what u need to update:
-------------------------------------------------------
1.First check the current version.
2.Then keep the update jdk version software in the required location on u r system.
3.Suppose /home/oracle/jdk1.6.0_35
4.In terminal type the above command /home/oracle/jdk1.6.0_35
5.The new jdk version is installed.
6.Then link the old jdk to new jdk to following the below code
--> ln -ld jdk*
--> ln -s jdk1.6.0_35 jdk
--> ln -ld jdk*
7.The new jdk version is updated.
8.change the path of the old jdk to new jdk in DOMAIN_HOME/bin/.setDomainEnv.sh
9.There u can find the code like SUN_JAVA_HOME=path of the older version update the new path of the jdk
9.then write and quit(:wq!)
10.To conform type java -version or check with the managed server logs.

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