Does not launch on Elementary OS 5.0

[mvniekerk]

OS: Elementary OS Juno (5.0, Ubuntu 18.04 based)
Java: 8.0.181-zulu (installed with sdkman.io)
Exception:
java.lang.UnsupportedOperationException: SystemTray not supported
at ika.colororacle.ColorOracle.main(ColorOracle.java:146)