Understanding the com.sun.* APIs being (ab)used by the community

Dr. Michael Paus mp at jugs.org
Fri Jun 5 15:37:00 UTC 2015

I promise to ditch that code as soon as there is a viable alternative. :-)

Am 05.06.15 um 17:28 schrieb Kevin Rushforth:
> Yes, this will still work, although dipping into non-public state
> continues to be something we wouldn't recommend that an application
> rely on...
> -- Kevin
> Dr. Michael Paus wrote:
>> As nobody has stated it explicitly so far I would like to ask what
>> will happen
>> to classes in Java9 which access methods that are within the javafx
>> namespace but
>> are declared private? Will code like this still work or not?
>>     public static double getPixelScale(Screen screen) throws
>> NoSuchMethodException, SecurityException, IllegalAccessException,
>> IllegalArgumentException, InvocationTargetException {
>>         Method m = Screen.class.getDeclaredMethod("getScale");
>>         m.setAccessible(true);
>>         return ((Float) m.invoke(screen)).doubleValue();
>>     }
>> This hack for example is currently necessary because there is no
>> other way to get at
>> the current pixel scale of a HiDPI screen.

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