code: public Object fetchValue()
      {
          try
          {
              return m_propertyMetadata.getGetMethod().invoke(m_proxyObject.getObject());
          }
          catch (Exception e)
          {
              throw new RuntimeException(e);
          }
      }
docs: /* (non-Javadoc)
  @see nz.co.senanque.validationengine.ProxyField#fetchValue()