/**
     * Finds a substring of value that uniquely identifies it from all strings
     * in a collection.
     *
     * @param value      the target string
     * @param collection the collection of other strings
     * @return a unique substring of value, or value itself if no such substring
     *         exists
     */
    public static String findUniqueSubstring(final String value,
            final Collection<String> collection) {

        return IntStream.range(1, value.length() + 1)
                .mapToObj(len -> IntStream.range(0, value.length() - len + 1)
                        .mapToObj(begin -> value.substring(begin, begin + len))
                        .filter(substring -> collection.parallelStream()
                                .noneMatch(other -> other.contains(substring)))
                        .findFirst())
                .filter(Optional::isPresent).map(Optional::get).findFirst()
                .orElse(value);
    }

I’m getting a runtime “java.lang.ClassCastException: class org.eclipse.parsson.JsonStringImpl cannot be cast to class java.lang.String” in the “noneMatch” line.

If it’s relevant: It’s in a JavaFX application, using jakarta.json and its parsson implementation.