code: @SuppressWarnings("UnusedParameters")
      protected String createSinceMetaData(String parameterName, DatabaseChangeProperty changePropertyAnnotation) {
          if (changePropertyAnnotation == null) {
              return null;
          }
          return StringUtil.trimToNull(changePropertyAnnotation.since());
      }
docs: Create the {@link ChangeParameterMetaData} "since" value. Uses the value on the DatabaseChangeProperty
  annotation or returns null as a default.