Jgroup crashes when slf4j is used (Slf4jLogImpl) ------------------------------------------------ Key: JGRP-2307 URL: https://issues.jboss.org/browse/JGRP-2307 Project: JGroups Issue Type: Bug Affects Versions: 4.0.6, 4.0.15 Environment: - I only tested 4.0.6 and 4.0.15 but I suspect all 4.0.x version are affected - Only happens in docker (our image is based on "java:8") Reporter: Daan Wendelen Assignee: Bela Ban Priority: Major Attachments: jgroups-bug.zip When running our application, it crashes with the following stacktrace. {code} Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) Caused by: java.lang.ExceptionInInitializerError at Bug.main(Bug.java:5) ... 8 more Caused by: java.lang.NullPointerException at java.util.Locale.<init>(Locale.java:648) at java.util.Locale.<init>(Locale.java:677) at org.jgroups.logging.Slf4jLogImpl.<clinit>(Slf4jLogImpl.java:20) ... 9 more {code}