JDK's 2D printing implementation uses CUPS PPD API
According to :
https://www.cups.org/documentation.php/doc-1.7/api-ppd.html
The PPD API is deprecated starting in CUPS 1.6/OS X 10.8. Please use the new Job Ticket APIs in the CUPS API documentation. These functions will be removed in a future release of CUPS.

So some future version of CUPS on all platforms and probably quite soon on
Mac (OS X 10.10 or 10.11 ? ) will no longer have these APIs and JDK printing
will cease to function properly.

We will need to have a migration path, using the new API whilst still supporting
the old API