public Object fromOpenValue(Object value) throws InvalidObjectException {
    if (value == null) {
      return null;
    } else {
      return fromNonNullOpenValue(value);
    }
  }
Convert an instance of openClass into an instance of targetType.

@return the java type object
geode-core/src/main/java/org/apache/geode/management/internal/OpenTypeConverter.java