*/
    @SuppressWarnings("unchecked")
    public static <T> T getComponent(final Class<T> clazz) {
        try {
            return SingletonLaContainer.getComponent(clazz);
        } catch (final NullPointerException e) {
            if (logger.isDebugEnabled()) {
                throw new ContainerNotAvailableException(clazz.getCanonicalName(), e);
            }

    void testMethodsWithNullBuffers() {
        netShareEnum = new NetShareEnum(realConfig);

        // Write methods return 0 when buffer is null (no NullPointerException thrown)
        assertEquals(0, netShareEnum.writeSetupWireFormat(null, 0));

        assertThrows(NullPointerException.class, () -> {
            netShareEnum.writeParametersWireFormat(null, 0);
        });

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockConfig.getNetbiosScope()).thenReturn(null);
        // Configure OEM encoding to avoid NullPointerException
        when(mockConfig.getOemEncoding()).thenReturn("UTF-8");
    }

    @Test
    @DisplayName("Constructor with Configuration only should create empty Name instances")
    void testConstructorWithConfigOnly() {

            assertTrue(UniAddress.isDotQuadIP("999.999.999.999"));
        }

        @Test
        void shouldThrowExceptionForNullInput() {
            assertThrows(NullPointerException.class, () -> UniAddress.isDotQuadIP(null));
        }

        @Test
        void shouldThrowExceptionForEmptyInput() {
            assertThrows(StringIndexOutOfBoundsException.class, () -> UniAddress.isDotQuadIP(""));

        // This test verifies that when the system property is null, the handler
        // falls back to using default handlers without throwing NullPointerException.
        System.clearProperty("java.protocol.handler.pkgs");
        setupMockProtocolHandlers();
        URL url = new URL("http://example.com/resource");

    void getters_withoutTree_throwNPE(String name, org.junit.jupiter.api.function.Executable call) {
        // Each call is invalid without a held tree and should throw NPE
        assertThrows(NullPointerException.class, call);
    }

    static java.util.stream.Stream<Arguments> wrapExceptions() {
        CIFSContext ctx = mock(CIFSContext.class);

        // Set up an expired cache entry
        Dfs.CacheEntry expiredEntry = new Dfs.CacheEntry(-1); // Expired
        testDfs._domains = expiredEntry;
        testDfs.setDisabled(true); // Set disabled to avoid NullPointerException

        when(auth.getDomain()).thenReturn("domain.com");

        assertNull(testDfs.getTrustedDomains(auth));
    }

    @Test

            // when authority is null. This is a known issue in the legacy implementation.
            // For now, we expect the NPE to maintain backward compatibility
            assertThrows(NullPointerException.class, () -> new SmbFile("smb1://").getParent());
        }

        @Test
        public void testGetPath() throws MalformedURLException {
            // Path should be the original, uncanonicalized URL

        this.connection.setReadTimeout(timeout);
    }

    @Override
    public void setRequestProperty(final String key, final String value) {
        if (key == null) {
            throw new NullPointerException();
        }
        final List<String> values = new ArrayList<>();
        values.add(value);
        boolean found = false;

    void testInitSecContextNullBufferNonZeroLen() throws Exception {
        SpnegoContext ctx = newContext();
        // A null buffer with non-zero len leads to NPE while slicing input
        assertThrows(NullPointerException.class, () -> ctx.initSecContext(null, 0, 1));
        verify(this.mechContext, never()).initSecContext(any(), anyInt(), anyInt());
    }

    @Test