@Override
		public String toString() {
			return Arrays.toString(_path);
		}
Appends the given {@code path} to {@code this} one.

@param path the path to append
@return a new {@code Path} with the given {@code path} appended
@throws NullPointerException if the given {@code path} is {@code null}
jenetics.ext/src/main/java/io/jenetics/ext/util/Tree.java