code: @Override
      public XMLValidationSchema createSchema(InputStream in, String encoding,
                                             String publicId, String systemId)
          throws XMLStreamException
      {
          InputSource src = new InputSource(in);
          src.setEncoding(encoding);
          src.setPublicId(publicId);
          src.setSystemId(systemId);
          return loadSchema(src, systemId);
      }
docs: /*
  //////////////////////////////////////////////////////////
  Stax2, Factory methods
  //////////////////////////////////////////////////////////