LoggerHelper { public static void debug(String message) { debug(null, message, null); }  static void info(Class<?> clazz, String message); static void info(String message); static void info(String message, Throwable throwable); static void info(Class<?> clazz, String message, Throwable throwable); static void debug(String message); static void debug(String message, Throwable throwable); static void debug(Class<?> clazz, String message, Throwable throwable); static void warn(String message); static void warn(String message, Throwable throwable); static void warn(Class<?> clazz, String message, Throwable throwable); static void error(String message); static void error(Class<?> clazz, String message); static void error(String message, Throwable throwable); static void error(Class<?> clazz, String message, Throwable throwable);  }
@Test public void debug() { LoggerHelper.debug(LoggerHelperTest.class, "test", null); LoggerHelper.debug(null, "test", null); LoggerHelper.debug(LoggerHelperTest.class, "test", new Throwable()); }