Refactors file parsing on Config loader function.

import javax.xml.xpath.XPathExpressionException;

import javax.xml.xpath.XPathFactory;

import java.io.*;

import java.net.URL;

import java.util.HashMap;

import java.util.LinkedList;

import java.util.List;

        InputStream is = null;

        Document doc;

        try {

            String current = new java.io.File(".").getCanonicalPath();

            is = new URL("file:///" + current + filePath).openStream();

            is = getClass().getClassLoader().getResource(filePath).openStream();

            DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();

            DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();

            doc = documentBuilder.parse(is);

            return doc;

        } catch (IOException | ParserConfigurationException | SAXException e) {

        } catch (IOException | ParserConfigurationException | SAXException | NullPointerException e) {

            e.printStackTrace();

        } finally {

            try {