Same issue here.
macOS: 10.14.3
DisplayLink Driver: 5.1
Java: 1.8.0_201-b09
Reproduce via terminal:
Code:
jvisualvm -J-Dnetbeans.logger.console=true
Output is:
Code:
java.lang.NullPointerException
at java.awt.Window.init(Window.java:497)
at java.awt.Window.<init>(Window.java:537)
at java.awt.Frame.<init>(Frame.java:420)
at org.netbeans.core.startup.Splash.setRunning(Splash.java:119)
at org.netbeans.core.startup.Main.start(Main.java:257)
at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:84)
at java.lang.Thread.run(Thread.java:748)
Workaround is to start app from macBook screen (configured as main screen).