int count = 10000; // Test with larger number for collision detection
        Set<String> nonceSet = new HashSet<>();

        // When
        for (int i = 0; i < count; i++) {
            byte[] nonce = encryptionContext.generateNonce();
            String nonceHex = bytesToHex(nonce);
            boolean added = nonceSet.add(nonceHex);
            assertTrue(added, "Nonce collision detected at iteration " + i);
        }

                return new String[] { d.toString() };
            case STRING:
                final String str = (String) xObj.value();
                return new String[] { str.trim() };
            case NODESET:
                final XPathNodes nodeList = (XPathNodes) xObj.value();
                final List<String> strList = new ArrayList<>();
                for (int i = 0; i < nodeList.size(); i++) {