On Mon, 6 Jan 2020 21:01:25 GMT, Kevin Rushforth <k...@openjdk.org> wrote:

>> This PR is a fix for 
>> [JDK-8234474](https://bugs.openjdk.java.net/browse/JDK-8234474), a crash in 
>> the code that shows a file open or save dialog.
>> 
>> In order to provide additional support for Copy (CMD-C), Cut (CMD-X), and 
>> Paste (CMD-V), the Glass implementation for displaying a file open or save 
>> dialog subclasses NSSavePanel or NSOpenPanel to add this support. When the 
>> application is running in sandboxed mode, the dialogs are shown 
>> out-of-process by the "powerbox". In this mode, attempting to use our 
>> subclass results in a security exception. Previously, we added code to 
>> detect whether we were running in a sandbox as a fix for 
>> [JDK-8092977](https://bugs.openjdk.java.net/browse/JDK-8092977); we now use 
>> NSSavePanel or NSOpenPanel directly when in sandboxed mode.
>> 
>> Starting with macOS 10.15 (Catalina) Apple always displays file dialogs 
>> out-of-process via powerbox, so our use of a subclass is ineffective. 
>> Further, we have reports of some cases where we crash even though our 
>> sandbox detection code doesn't indicate that we are running in a sandbox.
>> 
>> Since there is no point in trying to use our subclasses on macOS 10.15 or 
>> later, I propose to fix this bug by changing the logic so that we use 
>> NSSavePanel or NSOpenPanel directly in either of the following conditions:
>> 
>> 1) the app is running in sandbox mode
>> OR
>> 2) The platform is macOS 10.15 or later
> 
> The pull request has been updated with 1 additional commit.



-------------

Marked as reviewed by prr (Reviewer).

PR: https://git.openjdk.java.net/jfx/pull/70

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