presto-main/src/main/java/io/prestosql/util/Reflection.java/Reflection/field
class Reflection:    public static Field field(Class<?> clazz, String name)
    {
        try {
            return clazz.getField(name);
        }
        catch (NoSuchFieldException e) {
            throw new PrestoException(GENERIC_INTERNAL_ERROR, e);
        }
    }