type (
		Preload struct {
			ID       uint
			Value    string
			NestedID uint
		}
		Join struct {
			ID       uint
			Value    string
			NestedID uint
		}
		Nested struct {
			ID       uint
			Preloads []*Preload
			Join     Join
			ValueID  uint
		}
		Value struct {
			ID     uint
			Name   string
			Nested Nested
		}
	)

            });
        }
        return Collections.emptyList();
    }

    /**
     * Converts a string to lowercase.
     *
     * @param term The string to convert.
     * @return The lowercase string.
     */
    private String toLowerCase(final String term) {
        return term != null ? term.toLowerCase(Locale.ROOT) : term;
    }

     *
     * @param key the property key to look up
     * @param defaultValue the default value if the property is not found
     * @return the string value or default value
     */
    protected String getDefaultString(final String key, final String defaultValue) {
        final String value = systemProperties.getProperty(key);
        if (value != null) {
            return value;
        }
        return defaultValue;
    }

	loadPolicyDoc(ctx context.Context, policy string, m map[string]PolicyDoc) error
	loadPolicyDocWithRetry(ctx context.Context, policy string, m map[string]PolicyDoc, retries int) error
	loadPolicyDocs(ctx context.Context, m map[string]PolicyDoc) error
	loadUser(ctx context.Context, user string, userType IAMUserType, m map[string]UserIdentity) error
	loadSecretKey(ctx context.Context, user string, userType IAMUserType) (string, error)

        return super.hashCode();
    }

    @Override
    public String toString() {
        return getClass().getSimpleName() + ":" + doBuildColumnString(", ") + "@" + Integer.toHexString(hashCode());
    }

    protected abstract String doBuildColumnString(String dm);

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override

        return super.hashCode();
    }

    @Override
    public String toString() {
        return getClass().getSimpleName() + ":" + doBuildColumnString(", ") + "@" + Integer.toHexString(hashCode());
    }

    protected abstract String doBuildColumnString(String dm);

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override

    public Map<String, String[]> fields = new HashMap<>();

    /** Search query parameter that caused the error */
    public String q;

    /** URL parameter associated with the error */
    public String url;

    /** Number of results parameter */
    public String num;

    /** Sort order parameter for search results */
    public String sort;

  private static final Predicate<@Nullable String> NOT_LENGTH_3 =
      input -> input == null || input.length() != 3;
  private static final Predicate<@Nullable Integer> EVEN = input -> input == null || input % 2 == 0;
  static final Predicate<Entry<String, Integer>> CORRECT_LENGTH =
      input -> input.getKey().length() == input.getValue();

  abstract Map<String, Integer> createUnfiltered();

            return getNoPatternMessage(args);
        }
    }

    /**
     * Returns the pattern string corresponding to the message code.
     *
     * @param messageCode
     *            Message code
     * @return Pattern string
     */
    protected static String getPattern(final String messageCode) {
        if (isEmpty(messageCode)) {
            return null;
        }

)

// Dialector GORM database dialector
type Dialector interface {
	Name() string
	Initialize(*DB) error
	Migrator(db *DB) Migrator
	DataTypeOf(*schema.Field) string
	DefaultValueOf(*schema.Field) clause.Expression
	BindVarTo(writer clause.Writer, stmt *Statement, v interface{})
	QuoteTo(clause.Writer, string)
	Explain(sql string, vars ...interface{}) string
}

// Plugin GORM plugin interface
type Plugin interface {