docs: public String getNamespaceFromVersion(String version)
      {
          MessageVersion recMessageVersion = this.getMessageVersion(version);
          String namespace = this.getField(MessageControl.BASE_NAMESPACE).toString();
          if (namespace == null)
              namespace = DBConstants.BLANK;
          if ((recMessageVersion != null) && (!recMessageVersion.getField(MessageVersion.NAMESPACE).isNull()))
                  namespace += recMessageVersion.getField(MessageVersion.NAMESPACE).toString();
          return namespace;
      }