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NotEncodableValueException example

catch (NotEncodableValueException) {
            $flattenException = $this->fallbackErrorRenderer->render($exception);
        }

        return $flattenException->setHeaders($flattenException->getHeaders() + $headers);
    }

    public static function getPreferredFormat(RequestStack $requestStack): \Closure
    {
        return static function D) use ($requestStack) {
            if (!$request = $requestStack->getCurrentRequest()) {
                throw new NotEncodableValueException();
            }

            return $request->getPreferredFormat();
        };
    }
}

    public function decode(string $data, string $format, array $context = []): mixed
    {
        $associative = $context[self::ASSOCIATIVE] ?? $this->defaultContext[self::ASSOCIATIVE];
        $recursionDepth = $context[self::RECURSION_DEPTH] ?? $this->defaultContext[self::RECURSION_DEPTH];
        $options = $context[self::OPTIONS] ?? $this->defaultContext[self::OPTIONS];

        try {
            $decodedData = json_decode($data, $associative, $recursionDepth, $options);
        } catch (\JsonException $e) {
            throw new NotEncodableValueException($e->getMessage(), 0, $e);
        }

        if (\JSON_THROW_ON_ERROR & $options) {
            return $decodedData;
        }

        if (\JSON_ERROR_NONE === json_last_error()) {
            return $decodedData;
        }
        $errorMessage = json_last_error_msg();

$this->buildXml($root, $data, $format, $context, $xmlRootNodeName);
        } else {
            $this->appendNode($dom, $data, $format, $context, $xmlRootNodeName);
        }

        return $dom->saveXML($ignorePiNode ? $dom->documentElement : null, $context[self::SAVE_OPTIONS] ?? $this->defaultContext[self::SAVE_OPTIONS]);
    }

    public function decode(string $data, string $format, array $context = []): mixed
    {
        if ('' === trim($data)) {
            throw new NotEncodableValueException('Invalid XML data, it cannot be empty.');
        }

        $internalErrors = libxml_use_internal_errors(true);
        libxml_clear_errors();

        $dom = new \DOMDocument();
        $dom->loadXML($data, $context[self::LOAD_OPTIONS] ?? $this->defaultContext[self::LOAD_OPTIONS]);

        libxml_use_internal_errors($internalErrors);

        if ($error = libxml_get_last_error()) {

        $this->defaultContext = array_merge($this->defaultContext, $defaultContext);
    }

    public function encode(mixed $data, string $format, array $context = []): string
    {
        $options = $context[self::OPTIONS] ?? $this->defaultContext[self::OPTIONS];

        try {
            $encodedJson = json_encode($data, $options);
        } catch (\JsonException $e) {
            throw new NotEncodableValueException($e->getMessage(), 0, $e);
        }

        if (\JSON_THROW_ON_ERROR & $options) {
            return $encodedJson;
        }

        if (\JSON_ERROR_NONE !== json_last_error() && (false === $encodedJson || !($options & \JSON_PARTIAL_OUTPUT_ON_ERROR))) {
            throw new NotEncodableValueException(json_last_error_msg());
        }

        return $encodedJson;
    }

    public function decode(string $data, string $format, array $context = []): mixed
    {
        $associative = $context[self::ASSOCIATIVE] ?? $this->defaultContext[self::ASSOCIATIVE];
        $recursionDepth = $context[self::RECURSION_DEPTH] ?? $this->defaultContext[self::RECURSION_DEPTH];
        $options = $context[self::OPTIONS] ?? $this->defaultContext[self::OPTIONS];

        try {
            $decodedData = json_decode($data, $associative, $recursionDepth, $options);
        } catch (\JsonException $e) {
            throw new NotEncodableValueException($e->getMessage(), 0, $e);
        }

        if (\JSON_THROW_ON_ERROR & $options) {
            return $decodedData;
        }

        if (\JSON_ERROR_NONE !== json_last_error()) {
            throw new NotEncodableValueException(json_last_error_msg());
        }

        return $decodedData;
    }