RFR JDK-8233527: Update Lookup::hasPrivateAccess and Lookup::defineClass spec w.r.t. full power lookup

[Mandy Chung]

John suggests to deprecate Lookup::hasPrivateAccess and introduce
a correctly named method `hasFullPrivilegeAccess`.    Also clarify
`Lookup::findClass` javadoc that it's equivalent to `ldc` instruction.

Here is the updated webrev and specdiff:

http://cr.openjdk.java.net/~mchung/jdk14/8233527/webrev.03/
http://cr.openjdk.java.net/~mchung/jdk14/8233527/specdiff/

CSR has been updated as well.

Thanks
Mandy

On 11/11/19 1:23 PM, Mandy Chung wrote:
> This is a follow-up of JDK-8226916. Lookup::hasPrivateAccess intends 
> to test if this lookup is a full-power lookup; that is created by the 
> original caller class calling MethodHandles::lookup. The current 
> specification for Lookup::hasPrivateAccess returns true if the lookup 
> modes contain PRIVATE but it does not check MODULE bit.
>
> This patch also clarifies the capabilities w.r.t PRIVATE access and 
> full-power access. The security permission check is performed if the 
> Lookup is not a full power lookup and therefore Lookup::defineClass 
> spec should be updated to perform security permission check if the 
> security manager is present and this lookup refuses access, consistent 
> with other Lookup operations.
>
> http://cr.openjdk.java.net/~mchung/jdk14/8233527/webrev.02/
> http://cr.openjdk.java.net/~mchung/jdk14/8233527/specdiff/
>
> CSR: https://bugs.openjdk.java.net/browse/JDK-8233726
>
> thanks
> Mandy