*
   *  * If it is a control frame this will result in a single call to [FrameCallback].
   *  * If it is a message frame this will result in a single call to [FrameCallback.onReadMessage].
   *    If the message spans multiple frames, each interleaved control frame will result in a
   *    corresponding call to [FrameCallback].
   */
  @Throws(IOException::class)
  fun processNextFrame() {
    readHeader()
    if (isControlFrame) {

    }

    public void test_getSearchEngineHttpAddress_multipleChanges() {
        String originalValue = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);

        try {
            // Test multiple value changes
            String[] testValues = { "http://localhost:9200", "https://elasticsearch.example.com", "http://127.0.0.1:9201",
                    "https://search.domain.com:443" };

        byte[] clonedResult = clonedHmac.engineDigest();

        assertArrayEquals(originalResult, clonedResult);
    }

    @Test
    void testMultipleUpdates() {
        // Test multiple update calls
        HMACT64 hmac1 = new HMACT64(TEST_KEY);
        HMACT64 hmac2 = new HMACT64(TEST_KEY);

        // Update hmac1 all at once
        hmac1.engineUpdate(TEST_DATA, 0, TEST_DATA.length);

        when(mockEntry.lastModified()).thenReturn(200L);
        when(mockEntry.lastAccess()).thenReturn(300L);
        when(mockEntry.length()).thenReturn(12345L);

        // Act: call methods, some multiple times
        String name = mockEntry.getName();
        int type1 = mockEntry.getType();
        int type2 = mockEntry.getType(); // called twice for interaction verification

            assertEquals(24, encoded);
            assertEquals(flags, SMBUtil.readInt4(buffer, 16));
        }

        @Test
        @DisplayName("Should encode multiple locks sequentially")
        void testSequentialEncoding() {
            Smb2Lock lock1 = new Smb2Lock(100L, 200L, 1);
            Smb2Lock lock2 = new Smb2Lock(300L, 400L, 2);

        assertTrue(testImplementation.isResolveInDfs());

        // Toggle back to false
        testImplementation.setResolveInDfs(false);
        assertFalse(testImplementation.isResolveInDfs());

        // Multiple toggles
        for (int i = 0; i < 10; i++) {
            boolean expectedValue = (i % 2 == 0);
            testImplementation.setResolveInDfs(expectedValue);

        // Test that empty optional returns null instead of throwing
        assertNull(emptyOptional.orElse(null));
    }

    public void test_ofNullable_multipleTypesInSequence() {
        // Test multiple different types in sequence to ensure type safety
        OptionalEntity<String> stringOpt = OptionalUtil.ofNullable("string");
        OptionalEntity<Integer> intOpt = OptionalUtil.ofNullable(42);

#### Http2Writer

Socket writes are guarded by the Http2Writer. Only one stream can write at a time so that messages are not interleaved. Writes are either made by application-layer threads or the do-stuff-later pool.

### Holding multiple locks

You're allowed to take the Http2Connection lock while holding the Http2Writer lock. But not vice-versa. Because taking the Http2Writer lock can block.

#
#   Important for patching:
#
#   (2) This script targets any POSIX shell, so it avoids extensions provided
#       by Bash, Ksh, etc; in particular arrays are avoided.
#
#       The "traditional" practice of packing multiple parameters into a
#       space-separated string is a well documented source of bugs and security
#       problems, so this is (mostly) avoided, by progressively accumulating

                                    <div class="col-sm-9">
                                        <la:errors property="labelTypeIds"/>
                                        <la:select styleId="labelTypeIds" property="labelTypeIds" multiple="true"
                                                   styleClass="form-control">
                                            <c:forEach var="l" varStatus="s" items="${labelTypeItems}">