checkState(xSumOfSquaresOfDeltas > 0.0);
    checkState(ySumOfSquaresOfDeltas > 0.0);
    // The product of two positive numbers can be zero if the multiplication underflowed. We
    // force a positive value by effectively rounding up to MIN_VALUE.
    double productOfSumsOfSquaresOfDeltas =
        ensurePositive(xSumOfSquaresOfDeltas * ySumOfSquaresOfDeltas);

        }
    }

    @Nested
    @DisplayName("Unicode Support Tests")
    class UnicodeSupportTests {

        @Test
        @DisplayName("Should always force unicode")
        void testIsForceUnicode() {
            assertTrue(response.isForceUnicode());
        }

        @Test
        @DisplayName("Should consistently return true for unicode")

      }
    },
    MapMakerStrongKeysStrongValues {
      @Override
      public <K extends Comparable<K>, V> Map<K, V> create(Map<K, V> map) {
        // We use a "custom" equivalence to force MapMaker to make a MapMakerInternalMap.
        ConcurrentMap<K, V> newMap = new MapMaker().keyEquivalence(Equivalence.equals()).makeMap();
        checkState(newMap instanceof MapMakerInternalMap);
        newMap.putAll(map);

        // Store multiple keys
        for (int i = 0; i < 3; i++) {
            keyManager.storeSessionKey("session-" + i, testKey, "AES");
        }

        // Force rotate all
        int rotated = keyManager.forceRotateAllKeys();
        assertEquals(3, rotated, "Should rotate 3 keys");

        // Verify all keys were rotated
        for (int i = 0; i < 3; i++) {

    var success = false
    try {
      if (connectionSpec.supportsTlsExtensions) {
        Platform.get().configureTlsExtensions(sslSocket, address.url.host, address.protocols)
      }

      // Force handshake. This can throw!
      sslSocket.startHandshake()
      // block for session establishment
      val sslSocketSession = sslSocket.session
      val unverifiedHandshake = sslSocketSession.handshake()

    /** Whether to use command batching for improved performance */
    protected boolean useBatching = false;
    /** Whether to use Unicode encoding for strings */
    protected boolean useUnicode = true;
    /** Force use of Unicode encoding regardless of negotiation */
    protected boolean forceUnicode = false;
    /** Whether SMB signing is preferred but not required */
    protected boolean signingPreferred = false;

        halfOpenSuccesses.set(0);
        lastFailureTime.set(0);
        stateChangeTime.set(System.currentTimeMillis());
        log.info("Circuit breaker {} reset", name);
    }

    /**
     * Force the circuit to open
     */
    public void tripBreaker() {
        State previous = state.getAndSet(State.OPEN);
        if (previous != State.OPEN) {
            stateChangeTime.set(System.currentTimeMillis());

=== ":material-language-kotlin: Kotlin"
    ```kotlin
      private val client: OkHttpClient = OkHttpClient.Builder()

    return k1;
  }

  private static int mixH1(int h1, int k1) {
    h1 ^= k1;
    h1 = Integer.rotateLeft(h1, 13);
    h1 = h1 * 5 + 0xe6546b64;
    return h1;
  }

  // Finalization mix - force all bits of a hash block to avalanche
  private static HashCode fmix(int h1, int length) {
    h1 ^= length;
    h1 ^= h1 >>> 16;
    h1 *= 0x85ebca6b;
    h1 ^= h1 >>> 13;
    h1 *= 0xc2b2ae35;

        assertNotSame(first, second, "Should create new connection when first is disconnected");
    }

    @Test
    @DisplayName("Should create new connection when force signing differs")
    void testNoReuseWithDifferentSigning() throws Exception {
        // Given: An existing connection without signing enforced