Method emptyValueOf

core/src/main/java/feign/Util.java:214–216

This returns well known empty values for well-known java types. This returns null for types not in the following list. [Bb]oolean byte[] Collection Iterator List Map Set When {@link Feig

(Type type)

   * looking at the raw type (vs type hierarchy). Decorate for sophistication.
   */
  public static Object emptyValueOf(Type type) {
    return EMPTIES.getOrDefault(Types.getRawType(type), () -> null).get();
  }

  private static final Map<Class<?>, Supplier<Object>> EMPTIES;