[2.0.4] IDE: on close: ExceptionInInitializerError --- just ignore it --- fixed in 2.0.5

After closing Sikuli IDE receives following errors:

Exception in thread "Thread-0" java.lang.ExceptionInInitializerError
 at java.util.prefs.FileSystemPreferencesFactory.userRoot(FileSystemPreferencesFactory.java:41)
 at java.util.prefs.Preferences.userRoot(Preferences.java:454)
 at java.util.prefs.Preferences.userNodeForPackage(Preferences.java:368)
 at org.sikuli.basics.PreferencesUser.<init>(PreferencesUser.java:53)
 at org.sikuli.basics.PreferencesUser.get(PreferencesUser.java:57)
 at org.sikuli.script.support.RunTime.cleanUp(RunTime.java:1350)
 at org.sikuli.script.support.RunTime.runShutdownHook(RunTime.java:1364)
 at org.sikuli.script.support.RunTime.access$000(RunTime.java:42)
 at org.sikuli.script.support.RunTime$3.run(RunTime.java:1056)
Caused by: java.lang.IllegalStateException: Shutdown in progress
 at java.lang.ApplicationShutdownHooks.add(ApplicationShutdownHooks.java:66)
 at java.lang.Runtime.addShutdownHook(Runtime.java:212)
 at java.util.prefs.FileSystemPreferences$4.run(FileSystemPreferences.java:451)
 at java.util.prefs.FileSystemPreferences$4.run(FileSystemPreferences.java:449)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.util.prefs.FileSystemPreferences.<clinit>(FileSystemPreferences.java:449)

Any idea how can I fix this problem ?

I using Ubuntu 18.04, Java 8 and Sikulix 2.0.4