http://smali.org: dexlib2 is a library for reading/modifying/writing Android dex files
  • Ben Gruver 
package org.jf.dexlib2.builder;

public class LocatedLabels extends LocatedItems<Label> {
    @Override
    protected String getAddLocatedItemError() {
        return "Cannot add a label that is already placed." +
                "You must remove it from its current location first.";
    }
}