EVALUATION

Note that this fix was not in fact functional in JDK 7 until b132 because of
bug 7020444: Bug in fix for 6797728 : used doAA instead of aaType
                                     

EVALUATION

A better compromise solution is to disable gridfitting if FM==ON and AA=ON

By tying it to fm==on we
1) Don't need new API, not even a private one
2) Get linear metrics in the event we have text which does actually
scale linearly.
3) Are only affecting a use case (FM==ON) which doesn't crop up in
Swing apps, or most anything else, so they aren't affected.

By tying it to AA=ON, we are constraining it to the case where
disabling gridfitting produces useful results

Also it allows it to be used more precisely in a natural 2D way
by setting it for a particular graphics and there are no consequences
for any other usage in the JRE.
                                     

EVALUATION

I think the request is for internal API to enable the same.
                                     

EVALUATION

After fix for 6774578 we do have way to disable hinting globally:

Property name is "sun.java2d.font.experimental.nogridfitting" and the way to use it is to pass:
  -Dsun.java2d.font.experimental.nogridfitting=true

Environment variable is JAVA2D_EXPERIMENTAL_NOGRIDFITTING. Value does not matter, it is is set then grid fitting will be disabled.