Java Utililty Methods XML SAX Parser

SchemaFactory schemaFactory = SchemaFactory.newInstance(HTTP_WWW_W3_ORG_2001_XML_SCHEMA);
schemaFactory.setErrorHandler(errorHandler);
return schemaFactory.newSchema(xsd);

Schema schema = null;
SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
try {
    schema = sf.newSchema(xml_schema);
} catch (SAXException saxe) {
    throw new Error("Error while getting schema", saxe);
return schema;
...

SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = sf.newSchema(schemaURL);
return schema;

try {
    return saxParserFactory.newSAXParser().getXMLReader();
} catch (RuntimeException e) {
    throw e;
} catch (Exception e) {
    throw new RuntimeException(e);

try {
    final XMLReader reader = SAXParserFactory.newInstance().newSAXParser().getXMLReader();
    reader.setFeature("http://xml.org/sax/features/namespaces", true);
    reader.setFeature("http://xml.org/sax/features/namespace-prefixes", false);
    reader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
    return reader;
} catch (final Exception e) {
    throw new RuntimeException("Unable to create XMLReader", e);
...

return isWellFormedXml(new InputSource(new StringReader(string)));

final SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setValidating(false);
factory.setNamespaceAware(true);
try {
    final SAXParser parser = factory.newSAXParser();
    final XMLReader reader = parser.getXMLReader();
    reader.setErrorHandler(new ErrorHandler() {
        @Override
...

InputSource sheetSource = new InputSource(is);
SAXParserFactory saxFactory = SAXParserFactory.newInstance();
SAXParser saxParser = saxFactory.newSAXParser();
XMLReader sheetParser = saxParser.getXMLReader();
sheetParser.setContentHandler(handler);
sheetParser.parse(sheetSource);

return SAXParserFactory.newInstance();

final SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setValidating(false);
spf.setNamespaceAware(true);
return spf.newSAXParser().getXMLReader();