void removeListHandlers(java.util.logging.Logger logger) {
        Handler[] handlers = logger.getHandlers();
        for (Handler h : handlers) {
            if (h instanceof ListHandler)
                logger.removeHandler(h);
        }
    }
Test whether invoking the SLF4J API causes problems or not.

@author Ceki Gulcu
slf4j-jdk14/src/test/java/org/slf4j/jul/InvocationTest.java