Project template outputs warning: " NSWindow drag regions should only be invalidated on the Main Thread"

[davjhan]

I've followed the hello world directions and ran Main.kt. (./gradlew runJvm)

The window pops up and everything is fine, but there is a warning that shows up in the console.

Is there a way to get rid of this warning?

Thanks.

2019-06-16 14:29:45.101 java[26626:1568582] WARNING: NSWindow drag regions should only be invalidated on the Main Thread! This will throw an exception in the future. Called from (
	0   AppKit                              0x00007fff341807eb -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 378
	1   AppKit                              0x00007fff3417dbdb -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1479
	2   AppKit                              0x00007fff3417d60e -[NSWindow initWithContentRect:styleMask:backing:defer:] + 45
	3   libnativewindow_macosx.jnilib       0x000000012b8983fe Java_jogamp_nativewindow_macosx_OSXUtil_CreateNSWindow0 + 398
	4   ???                                 0x000000010ed6e9f4 0x0 + 4543932916
)

[soywiz]

Sadly can't do anything about that, probably should be fixed on the JDK side.
Korge 1.4.2 allows to use an experimental engine on the first thread with this:

./gradlew runJvmFirstThread

It should work better (open faster and resize without artifacts) but might fail to some people still, so it is experimental for now.