code: public Map<String, String> collectValues() {
  
          Map<String, String> result = new HashMap<String, String>();
          for (Map.Entry<String, I_CmsFormField> entry : m_fields.entrySet()) {
              String key = entry.getKey();
              String value = null;
              I_CmsFormField field = entry.getValue();
              value = field.getModelValue();
              result.put(key, value);
          }
          return result;
      }
docs: Collects all values from the form fields.<p>
  
  This method omits form fields whose values are null.
  
  @return a map of the form field values