java.lang.ClassCastException: jline.console.completer.CandidateListCompletionHandler cannot be cast to ResourceBundle

Getting this error when launching something using JLine 2. Here's the log:

java.util.MissingResourceException: Can't find bundle for base name jline.console.completer.CandidateListCompletionHandler, locale en_US
	at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1557)
	at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1380)
	at java.util.ResourceBundle.getBundle(ResourceBundle.java:770)
	at jline.console.ConsoleReader.<clinit>(ConsoleReader.java:100)
	... 4 more
Caused by: java.lang.ClassCastException: jline.console.completer.CandidateListCompletionHandler cannot be cast to ResourceBundle
	at java.util.ResourceBundle$Control.newBundle(ResourceBundle.java:2642)
	at java.util.ResourceBundle.loadBundle(ResourceBundle.java:1494)
	at java.util.ResourceBundle.findBundle(ResourceBundle.java:1458)
	at java.util.ResourceBundle.findBundle(ResourceBundle.java:1412)
	at java.util.ResourceBundle.findBundle(ResourceBundle.java:1412)
	at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1354)
	... 6 more