RFR: 8364187: Make getClassAccessFlagsRaw non-native [v2]

[Coleen Phillimore]

On Wed, 30 Jul 2025 20:25:22 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> For IDENTITY, I didn't have to inject that one because the Java code knew when to set it, not the JVM code reading the data out of the classfile.  And the logic belongs in the Java code, not the JVM. This one comes from the classfile, there isn't another way to get the information to the java.lang.Class.
>
> The VM and Java use the same logic for the value of isIdentity(). 
> It is computed from as many a 5 fields/flags. At present, it has to be computed on each call to Class.isIdentity().
> It would be reasonable to compute the value once in the constructor, but the code in the constructor is not run.

Roger, can you file another RFE for this for repo-valhalla and I can try to figure out how to best to do this?  Or I can.  I didn't think the valhalla isIdentityClass() code was expensive to call.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26517#discussion_r2245151689