docs: public void finer (String msg) {
  		StackTraceElement caller = StackTraceUtils.getCallerStackTraceElement ();
  		if (caller != null) {
  			logger.logp (Level.FINER, caller.getClassName (), caller.getMethodName () + "():" + caller.getLineNumber (), msg);
  		} else {
  			logger.logp (Level.FINER, "(UnknownSourceClass)", "(unknownSourceMethod)", msg);
  		}
  	}