RFR: Resolve disabled warnings for the JVMTI demos

[Alan Bateman]

On 10/03/2015 15:37, Staffan Larsen wrote:
> Please review these small fixes to remove a couple of warnings in the JVMTI demos.
>
> bug: https://bugs.openjdk.java.net/browse/JDK-8074841
> bug: https://bugs.openjdk.java.net/browse/JDK-8074842
> webrev: http://cr.openjdk.java.net/~sla/8074841/webrev.00/
>
>
Using %p looks right here, the removal of the unused locals too. So I 
think this looks good to me.

-Alan