qrList.allRecordCountRelation = null;
        qrList.queryTime = 0;
        qrList.partialResults = false;
        qrList.facetResponse = null;

        String toStringResult = qrList.toString();
        assertTrue(toStringResult.contains("QueryResponseList"));
        assertTrue(toStringResult.contains("allRecordCountRelation=null"));
        assertTrue(toStringResult.contains("facetResponse=null"));

        fileTypeHelper.add(null, "test");
        assertEquals("test", fileTypeHelper.get(null));
    }

    public void test_add_withEmptyMimetype() {
        fileTypeHelper.add("", "empty");
        assertEquals("empty", fileTypeHelper.get(""));
    }

    public void test_add_withNullFiletype() {
        fileTypeHelper.add("test/null", null);

  public void testPutIfAbsent_nullKeyUnsupported() {
    assertThrows(NullPointerException.class, () -> getMap().putIfAbsent(null, v3()));
    expectUnchanged();
    expectNullKeyMissingWhenNullKeysUnsupported(
        "Should not contain null key after unsupported putIfAbsent(null, value)");
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)

        assertDoesNotThrow(() -> resp.writeParametersWireFormat(null, 0));
        assertDoesNotThrow(() -> resp.writeDataWireFormat(null, 0));
        assertDoesNotThrow(() -> resp.readSetupWireFormat(null, 0, 0));
        assertDoesNotThrow(() -> resp.readParametersWireFormat(null, 0, 0));
        assertDoesNotThrow(() -> resp.readDataWireFormat(null, 0, 0));

fi

if [ "$REMOVE_SERVICE" = "true" ]; then
    if command -v systemctl >/dev/null; then
        systemctl --no-reload disable fess.service > /dev/null 2>&1 || true
    fi

    if command -v chkconfig >/dev/null; then
        chkconfig --del fess 2> /dev/null || true
    fi

    if command -v update-rc.d >/dev/null; then
        update-rc.d fess remove >/dev/null || true
    fi
fi

if [ "$REMOVE_DIRS" = "true" ]; then

        // Act + Assert
        assertThrows(PACDecodingException.class, () -> new KerberosApRequest(notASequence, null));
    }

    @Test
    @DisplayName("seq ctor: valid minimal sequence sets apOptions and leaves ticket null")
    void sequenceConstructor_minimal_valid_setsApOptions_noTicket() throws Exception {
        // Arrange
        byte ap = (byte) 0x7A;

        repos.add(artifactRepositoryFactory.createArtifactRepository(
                "repo1", "string://url1", new ArtifactRepositoryLayoutStub(), null, null));
        repos.add(artifactRepositoryFactory.createArtifactRepository(
                "repo2", "string://url2", new ArtifactRepositoryLayoutStub(), null, null));

        StringWagon wagon = (StringWagon) wagonManager.getWagon("string");

        // Test with null message and valid cause
        TransportException nullMessageException = new TransportException(null, rootCause);
        assertNull(nullMessageException.getMessage());
        assertEquals(rootCause, nullMessageException.getCause());

        // Test with valid message and null cause
        TransportException nullCauseException = new TransportException(message, null);

    @Test
    @DisplayName("Constructor with open() returning null closes immediately and hasNext=false")
    void constructorOpenNullCloses() throws Exception {
        // Arrange
        stubAcquireReturnsSelf();
        List<FileEntry[]> pages = List.of(new FileEntry[][] { new FileEntry[] {} });

        // Create iterator where open() returns null by giving null initial

     */
    public static void validateArrayBounds(byte[] src, int srcOffset, byte[] dst, int dstOffset, int length) {
        if (src == null || dst == null) {
            throw new IllegalArgumentException("Arrays cannot be null");
        }
        if (srcOffset < 0 || dstOffset < 0 || length < 0) {
            throw new IllegalArgumentException("Offsets and length must be non-negative");
        }