### Question:
TaskunLogUtilLoggerImpl implements TaskunLog { @Override public void warn(String message) { ClassNameAndMethodName names = getClassNameAndMethodName(); this._log.logp(Level.WARNING, names.className, names.methodName, message); } TaskunLogUtilLoggerImpl();  TaskunLogUtilLoggerImpl(Class<?> clazz);  TaskunLogUtilLoggerImpl(String name); @Override void debug(String message); @Override void debug(String message, Throwable t); @Override void info(String message); @Override void info(String message, Throwable t); @Override void warn(String message); @Override void warn(String message, Throwable t); @Override void error(String message); @Override void error(String message, Throwable t);  }### Answer:
@Test public void warn_A$String() throws Exception { String message = null; log.warn(message); }
@Test public void warn_A$String$Throwable() throws Exception { String message = null; Throwable t = null; log.warn(message, t); }