if (o == null) {
            return null;
        } else if (o instanceof Byte) {
            return (Byte) o;
        } else if (o instanceof Number) {
            return ((Number) o).byteValue();
        } else if (o instanceof String) {
            return toByte((String) o);
        } else if (o instanceof java.util.Date) {
            if (pattern != null) {

    assertEquals(false, Defaults.defaultValue(boolean.class).booleanValue());
    assertEquals('\0', Defaults.defaultValue(char.class).charValue());
    assertEquals(0, Defaults.defaultValue(byte.class).byteValue());
    assertEquals(0, Defaults.defaultValue(short.class).shortValue());
    assertEquals(0, Defaults.defaultValue(int.class).intValue());
    assertEquals(0, Defaults.defaultValue(long.class).longValue());

    assertEquals(false, Defaults.defaultValue(boolean.class).booleanValue());
    assertEquals('\0', Defaults.defaultValue(char.class).charValue());
    assertEquals(0, Defaults.defaultValue(byte.class).byteValue());
    assertEquals(0, Defaults.defaultValue(short.class).shortValue());
    assertEquals(0, Defaults.defaultValue(int.class).intValue());
    assertEquals(0, Defaults.defaultValue(long.class).longValue());

  }

  /**
   * Returns an array containing each value of {@code collection}, converted to a {@code byte} value
   * in the manner of {@link Number#byteValue}.
   *
   * <p>Elements are copied from the argument collection as if by {@code collection.toArray()}.
   * Calling this method is as thread-safe as calling that method.
   *

        is NullValue -> KtConstantValue.KtNullConstantValue(sourcePsi = null)
        is StringValue -> KtConstantValue.KtStringConstantValue(value, sourcePsi = null)
        is ByteValue -> KtConstantValue.KtByteConstantValue(value, sourcePsi = null)
        is CharValue -> KtConstantValue.KtCharConstantValue(value, sourcePsi = null)
        is IntValue -> KtConstantValue.KtIntConstantValue(value, sourcePsi = null)

	fieldValue := reflect.New(field.FieldType)

	if dbValue != nil {
		var bytesValue []byte
		switch v := dbValue.(type) {
		case []byte:
			bytesValue = v
		default:
			return fmt.Errorf("failed to unmarshal gob value: %#v", dbValue)
		}
		if len(bytesValue) > 0 {
			decoder := gob.NewDecoder(bytes.NewBuffer(bytesValue))
			err = decoder.Decode(fieldValue.Interface())
		}
	}