core/src/main/java/com/twitter/elephantbird/util/ThriftUtils.java
public static <M> M getFieldValue(Class<?> containingClass, String fieldName, Class<M> fieldClass) {
    return getFieldValue(containingClass, null, fieldName, fieldClass);
  }
public static <M> M getFieldValue(Class<?> containingClass, String fieldName, Class<M> fieldClass) {
    return getFieldValue(containingClass, null, fieldName, fieldClass);
  }
Returns value of a static field with given name in containingClass.