Changing JVM version in CE 7.1 SP11 using Config Tool

Hi Experts,
I have CE 7.1 SP11 installation, in the server node I could see two versions of JVM (jvm: sapjvm_5.1.017 and sapjvm_5.1.058 in directory usr\sap\<>\SYS\exe\jvm\<>\....)
In Config Tool, it shows only sapjvm_5.1.058.
I faced a problem with jvm  sapjvm_5.1.058 connecting to rmi/iiop which is running in ibm webspehere, but I able able to connect properly with using sapjvm_5.1.017 which I tested by creating and executing sample Java program.
My question is - I want to change the JVM version in Config tool and want to point it to sapjvm_5.1.017.
Please suggest me how can I do this.
Regards,
Patana

hope this note wlll help
Note 718901 - How to Change the JDK of the J2EE Engine

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