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")

    /**
     * Emergency cleanup method to prevent resource leaks during finalization
     */
    private void emergencyCloseHandle() {
        try {
            synchronized (this) {
                // Force close the handle
                this.open = false;
                this.usageCount.set(0);

                // Clear mutable references to free memory

     */
    @Nonnull
    Optional<Boolean> nonRecursive();

    /**
     * Indicates whether Maven should force a check for updated snapshots on remote repositories.
     *
     * @return an {@link Optional} containing true if snapshot updates should be forced, false if not, or empty if not specified
     */
    @Nonnull

    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()

      }
    },
    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++) {

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

    void length_handlesNullInternalArray() throws Exception {
        // Arrange
        SecurityBlob blob = new SecurityBlob(new byte[] { 1, 2, 3 });

        // Force internal field to null via reflection to exercise defensive branch
        Field field = SecurityBlob.class.getDeclaredField("b");
        field.setAccessible(true);
        field.set(blob, null);

        // Act & Assert

    /** 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;