When I start my JavaFX (generic testing or full) application, and then click outside of focus aka on my IntelliJ IDE application, then click back on the application, it'll spam this.
2018-12-16 01:24:48.423 java[1549:66391] unrecognized type is 4294967295
2018-12-16 01:24:48.423 java[1549:66391] *** Assertion failure in -[NSEvent _initWithCGEvent:eventRef:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppKit/AppKit-1671.20.108/AppKit.subproj/NSEvent.m:1969
2018-12-16 01:25:07.359 java[1549:66391] unrecognized type is 4294967295
2018-12-16 01:25:07.359 java[1549:66391] *** Assertion failure in -[NSEvent _initWithCGEvent:eventRef:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppKit/AppKit-1671.20.108/AppKit.subproj/NSEvent.m:1969
2018-12-16 01:25:08.152 java[1549:66391] unrecognized type is 4294967295
2018-12-16 01:25:08.152 java[1549:66391] *** Assertion failure in -[NSEvent _initWithCGEvent:eventRef:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppKit/AppKit-1671.20.108/AppKit.subproj/NSEvent.m:1969
2018-12-16 01:26:29.488 java[1549:66391] unrecognized type is 4294967295
2018-12-16 01:26:29.488 java[1549:66391] *** Assertion failure in -[NSEvent _initWithCGEvent:eventRef:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppKit/AppKit-1671.20.108/AppKit.subproj/NSEvent.m:1969
2018-12-16 01:26:30.188 java[1549:66391] unrecognized type is 4294967295
2018-12-16 01:26:30.188 java[1549:66391] *** Assertion failure in -[NSEvent _initWithCGEvent:eventRef:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/AppKit/AppKit-1671.20.108/AppKit.subproj/NSEvent.m:1969
When I was on macOS High Sierra, it was working fine and I never encountered these issues. However with the new update to macOS Mojave, it's been giving me these errors.
I've looked around with no avail. Currently using Java 1.8.0_181 but issue is also occurring on 1.8.0_191. (Java 8)
Currently it doesn't do anything with regards to breaking the application (yet), but it does lead to the console being spammed.
What's causing this assertion failure and how do I figure out what "unrecognized type is 4294967295" is?
Currently the only fix that comes to mind would be to downgrade OS versions, but I can't request all of my users do that.
