Java EE (Java Enterprise Edition) General Discussion

I am trying to parse a document and my program freezes at the factory.newDocumentBuilder() method. I have the same jar files that I have in my build path. I am confused. Any guidance would be appreciated. Thank you.

try{
System.setProperty("javax.xml.parsers.DocumentBuilderFactory", "org.apache.xerces.jaxp.DocumentBuilderFactoryImpl");
System.setProperty("javax.xml.parsers.SAXParserFactory", "org.apache.xerces.jaxp.SAXParserFactoryImpl");
System.setProperty("javax.xml.transform.TransformerFactory", "org.apache.xalan.processor.TransformerFactoryImpl");
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(false);
factory.setValidating(false);
////FREEZES HERE at factory.newDocumentBuilder()\\\\
DocumentBuilder builder = factory.newDocumentBuilder();
InputSource inps = new InputSource(new StringReader(xml));
Document doc = builder.parse(inps);
}catch (SAXException e) {
System.out.println(xml + " is not well-formed.");
return null;
} catch (FactoryConfigurationError e) {
System.out.println("Could not locate a factory class");
return null;
} catch (ParserConfigurationException e) {
System.out.println("Could not locate a JAXP parser");
return null;
} catch (Exception e) {
System.out.println("Exception: " + e.getMessage());
e.printStackTrace();
return null;
}