GUI mode won't open (OpenJDK 8)

[Dannyx1604]

Bug Report

Expected Behaviour

It should open the gui by using Java 8

Actual Behaviour

I get the following error while trying to run the program in gui mode (Java 8):

	at com.bulenkov.iconloader.IconLoader.<clinit>(IconLoader.java:53)
	at com.bulenkov.darcula.DarculaLaf.getDefaults(DarculaLaf.java:97)
	at javax.swing.UIManager.setLookAndFeel(UIManager.java:539)
	at javax.swing.UIManager.setLookAndFeel(UIManager.java:583)
	at me.superblaubeere27.jobf.JObf.main(JObf.java:260)
Caused by: java.lang.NullPointerException
	at com.bulenkov.iconloader.util.UIUtil.initSystemFontData(UIUtil.java:254)
	at com.bulenkov.iconloader.util.JBUI.calculateScaleFactor(JBUI.java:47)
	at com.bulenkov.iconloader.util.JBUI.<clinit>(JBUI.java:33)
	... 5 more

And if I use Java 17 I also get this error:

	at com.bulenkov.iconloader.util.UIUtil.initSystemFontData(UIUtil.java:254)
	at com.bulenkov.iconloader.util.JBUI.calculateScaleFactor(JBUI.java:47)
	at com.bulenkov.iconloader.util.JBUI.<clinit>(JBUI.java:33)
	... 5 more

How to reproduce the behaviour

Use Java 8
Run it on Ubuntu 22.04
Currently no config

Possible fix

If you have no idea then you can just skip this section ^^