public String decodedPath() {
        ensurePresence();
        final String decodedPath = this.decodedPath;
        if (decodedPath != null) {
            return decodedPath;
        }

        assert path != null;
        return this.decodedPath = ArmeriaHttpUtil.decodePath(path);
    }
Returns the path mapped by the {@link Route}, decoded in UTF-8.

@throws IllegalStateException if there's no match
core/src/main/java/com/linecorp/armeria/server/RoutingResult.java