The method toJSONObject(String) in the type XML is not applicable for the arguments (String, boolean)

Issue

I created my own WorkItemHandler to return a JSON String even if the API has returned a XML string. To convert the xml string to JSON I use the package org.json (it is a maven dependency) and the code:

JSONObject xmlJSONObj = XML.toJSONObject(content, true);  
jsonString = xmlJSONObj.toString(0);

This works when I run it on Eclipse but I can't build the project on JBoss BPM Suite. It says "The method toJSONObject(String) in the type XML is not applicable for the arguments (String, boolean)".

Do you already have a default class XML that is overriding the org.json.XML class?