[11] RFR JDK-8202199 : Provide public, unsupported API for FX Swing interop

[mandy chung]

I skimmed through the sources.  It's good to see that this patch
is straight forward.  A couple of comments:

jdk.unsupported.desktop is defined to the application class loader
which I think it's fine as FX modules are defined to the same class
loader.

I expect src/java.base/share/lib/security/default.security will
need to be modified and grant permissions to jdk.unsupported.desktop.
Kevin and I talked about potential issues with running with security
manager enabled.  Maybe it is a separate task to follow up and it
may reveal if any operation needs doPrivileged - that's fine with me.

The docs build starts with a known set of root modules for javadoc
generation.  I believe jdk.unsupported.desktop won't be included
in the docs build which is intended (as it's unsupported).  Can
you verify it?

Nit: jdk.swing.interop.* source files
it'd be good to keep import statements sorted by the names.

Mandy

On 5/4/18 5:00 AM, Prasanta Sadhukhan wrote:
> Hi All,
>
> Please review an enhancement to remove the tight coupling of JDK 
> internal class from FX so that
> when javafx.* modules are removed from Openjdk build in jdk11, FX in 
> general, and fx swing interop, in particular, can still build and 
> function.
>
> Right now, FX uses 6 jdk internal packages
> sun.swing, sun.awt, java.awt.dnd.peer, sun.awt.dnd, sun.awt.image and 
> sun.java2d.
>
> However, the goal is not to use qualified exports of these internal 
> packages once FX is removed to be built along with JDK,
>
> The solution will define a new "jdk.unsupported.desktop" module that 
> exports public API
> that is intended to be used by the javafx.swing module (but it does so 
> with public exports and not qualified exports).
> The idea is the same as jdk.unsupported, in that it is documented as 
> being unsupported.
> Further, since it is only intended to be used by javafx.swing, it need 
> not be in the default module graph.
>
> The module-info.java will look like this:
> |module jdk.unsupported.desktop { requires transitive java.desktop; 
> exports jdk.swing.interop; } |||
> Enhancement: https://bugs.openjdk.java.net/browse/JDK-8202199, 
> https://bugs.openjdk.java.net/browse/JDK-8195811
> webrev: cr.openjdk.java.net/~psadhukhan/fxswing.6/
> CSR: https://bugs.openjdk.java.net/browse/JDK-8202175
>
> Regards
> Prasanta
> ||
>