} catch (final CrawlingAccessException e) {
            // ok
        }
    }

    public void test_accessTimeout_null_safety() {
        // Test that accessTimeoutTask null check prevents NPE
        GcsClient client = new GcsClient() {
            @Override
            protected ResponseData processRequest(final String uri, final boolean includeContent) {

            if (server != null) {
                server.stop();
            }
        }
    }

    public void test_accessTimeout_null_safety() {
        // Test that accessTimeoutTask null check prevents NPE
        FtpClient client = new FtpClient() {
            @Override
            protected ResponseData getResponseData(final String uri, final boolean includeContent) {
                // Simulate quick completion before timeout

        } catch (final CrawlingAccessException e) {
            // ok
        }
    }

    public void test_accessTimeout_null_safety() {
        // Test that accessTimeoutTask null check prevents NPE
        StorageClient client = new StorageClient() {
            @Override
            protected ResponseData processRequest(final String uri, final boolean includeContent) {

        doThrow(new AssertionError("ensureOpen should not be called")).when(raf).ensureOpen();
        raf.write(new byte[1], 0, 0);
    }

    @Test
    @DisplayName("Null inputs: read(byte[]) and write* with nulls throw NPE")
    void nullInputs_throwNPE() throws Exception {
        SmbRandomAccessFile raf = newInstance("rw", false, true, false);
        assertThrows(NullPointerException.class, () -> raf.read((byte[]) null));

            lenient().doNothing().when(mockBuffer).enc_ndr_small(anyInt());

            DcerpcBind bindWithParams = new DcerpcBind(mockBinding, mockHandle);

            // When/Then - Expect NPE due to UUID.encode() limitations
            assertThrows(NullPointerException.class, () -> {
                bindWithParams.encode_in(mockBuffer);
            }, "Should fail on UUID encoding");
        }
    }

        // Set the deferred field directly since it's a public field
        mockNdrBuffer.deferred = mockDeferredNdrBuffer;
        // Set up deferred buffer chain to avoid NPE
        mockDeferredNdrBuffer.deferred = mockDeferredNdrBuffer; // Self-reference to avoid NPE
        lenient().when(mockNdrBuffer.derive(anyInt())).thenReturn(mockDeferredNdrBuffer);
        lenient().when(mockDeferredNdrBuffer.derive(anyInt())).thenReturn(mockDeferredNdrBuffer);

    /**
     * Test destroyObject with null PooledObject
     */
    public void test_destroyObject_nullPooledObject() {
        try {
            factory.destroyObject(null);
            // Should not throw NPE - implementation should handle gracefully or throw
        } catch (NullPointerException e) {
            // Acceptable behavior
            assertTrue(true);
        } catch (Exception e) {