docs: public static File classToRelativePackagePath(Class<?> clazz) {
  	if (File.separator.equals("/")) {
  	    return new File(clazz.getName().replaceAll("\\.", File.separator)
  		    + ".java");
  	} else {
  	    return new File(clazz.getName().replaceAll("\\.",
  		    File.separator + File.separator)
  		    + ".java");
  	}
      }