#5 Error ArrayIndexOutOfBoundsException in empty node

[Anonymous]

Error:
java.lang.ArrayIndexOutOfBoundsException: 0 >= 0

Tested with

Node doc = new Xparse().parse("<a></a>");
Node a = doc.find("a", new int[]{1});
System.out.println("a.getCharacters() = " +
a.getCharacters());