Exception in thread "main" java.lang.IllegalAccessError: class org.example.main.Tui (in module MP3) cannot access class com.googlecode.lanterna.gui2.menu.MenuBar (in module com.googlecode.lanterna) because module com.googlecode.lanterna does not export com.googlecode.lanterna.gui2.menu to module MP3
at MP3/org.example.main.Tui.runTui(Tui.java:34)
at MP3/org.example.main.Main.main(Main.java:11)
Lanterna's com.googlecode.lanterna.gui2.menu is exported within src/main/java9/module-info.java .
This was only added late on Aug 25th 2021 - maybe your lanterna.jar predates this change?
Exception in thread "main" java.lang.IllegalAccessError: class org.example.main.Tui (in module MP3) cannot access class com.googlecode.lanterna.gui2.menu.MenuBar (in module com.googlecode.lanterna) because module com.googlecode.lanterna does not export com.googlecode.lanterna.gui2.menu to module MP3 at MP3/org.example.main.Tui.runTui(Tui.java:34) at MP3/org.example.main.Main.main(Main.java:11)
Process finished with exit code 1