private Field findOrdinalField(Class<?> versionClass) {
    try {
      Field currentOrdinalField = versionClass.getDeclaredField("CURRENT_ORDINAL");
      currentOrdinalField.setAccessible(true);
      return currentOrdinalField;
    } catch (NoSuchFieldException e) {
      throw new IllegalStateException(
          "Unable to locate Version.java's CURRENT_ORDINAL field in order to establish the product's serialization version",
          e);
    }
  }
Returns a list of testable versions sorted from oldest to newest

<p>
Note: if you need to compare version strings use {@link TestVersion#compare(String, String)} or
{@link TestVersion#equals}.

@return a list of testable versions sorted from oldest to newest
geode-junit/src/main/java/org/apache/geode/test/version/VersionManager.java