The whole "Disable Java" security feature  has been covered by auto and manual tests for 7u10 b13 - b17.
New "disable java" tests also indirectly tests this CR as direct testing can't be performed by SQE ( internal API changes ).

See test matrices for 7u10 b17:
http://st2.ru.oracle.com/StatusTool2/faces/queryresult2.jsp?matrix_id=1000024634
http://st2.ru.oracle.com/StatusTool2/faces/queryresult2.jsp?matrix_id=1000024636

                                     

/test: http://closedjdk.us.oracle.com/jdk7u/jdk7u10/deploy/rev/d8e57e613e42
                                     

added Java API and also Window's platform specific implementation

API will be used by Java Control Panel or RegisterDeploy (future)

See Platform.java for new Java API added

tested by manually calling into:

Platform.get().isWebJavaEnabled();
Platform.get().queryWebJavaState();
Platform.get().setWebJavaEnabled(true or false);

and ensure desired results is achieved.

webrev:  http://sa.us.oracle.com/mail-archive/8001171-deployment