assertTrue(stats.getFailureRate() <= 1.0);
    }

    @Test
    public void testBufferOverflowPrevention() throws Exception {
        validator.resetStats();

        // Trigger buffer overflow prevention
        try {
            byte[] buffer = new byte[10];
            validator.validateBufferAccess(buffer, 5, 10);
        } catch (SmbException e) {
            // Expected
        }

   * 8`, so the class files from that build can't express nestmates. Thus, when those class files
   * are used from Java 9 or higher (i.e., high enough to trigger the VarHandle code path), such a
   * lookup would fail with an IllegalAccessException. That may then trigger use of Unsafe (possibly
   * with a warning under recent JVMs), or it may fall back even further to

        verify(tc, never()).getConfig();
        verifyNoInteractions(config);
    }

    @Test
    @DisplayName("createContext: Kerberos present but forceFallback triggers NTLM path")
    void createContext_forceFallback_triggersNtlmAndFailsOnNonNtlmToken() throws CIFSException {
        when(tc.getConfig()).thenReturn(config);
        when(config.isAllowNTLMFallback()).thenReturn(true);

    void renewOnNullReferenceThrowsNPE() {
        // Arrange: null reference to the interface
        SmbRenewableCredentials creds = null;

        // Act + Assert: invoking renew() on null triggers NullPointerException
        assertThrows(NullPointerException.class, () -> {
            // Intentional NPE through dereference of a null interface reference
            creds.renew();
        });
    }

        // Assert
        verify(mockConnection).disconnect();
        // Connection should be closed after disconnect
    }

    /**
     * Test simple getter methods that should trigger the handshake.
     * We mock a simple 200 OK response to test the handshake is called.
     * @throws IOException
     */
    @Test
    void testGettersTriggerHandshake() throws IOException {
        // Arrange

```json
{
  "version": "1",
  "deploymentid": "90e81272-45d9-4fe8-9c45-c9a7322bf4b5",
  "time": "2024-05-09T07:38:10.449688982Z",
  "event": "",
  "trigger": "incoming",
  "api": {
    "name": "PutObject",
    "bucket": "testbucket",
    "object": "hosts",
    "status": "OK",
    "statusCode": 200,
    "rx": 401,
    "tx": 0,
    "timeToResponse": "13309747ns",

		lk4ch := make(chan bool)
		go func() {
			lk4ch <- nsLk.lock(ctx, "volume", "path", "source", "opsID", false, 0)
		}()
		runtime.Gosched()

		// unlock the manual lock
		nsLk.lockMapMutex.Unlock()

		// To trigger the race:
		// 1) lk3 or lk4 need to advance and increment the ref on the existing resource,
		//    successfully acquiring the lock.
		// 2) lk2 then needs to advance and remove the resource from lockMap.

        OptionalEntity<StopwordsItem> result = stopwordsFile.get(999);
        assertFalse(result.isPresent());
    }

    public void test_get_withNullList() {
        // stopwordsItemList is null initially, should trigger reload
        OptionalEntity<StopwordsItem> result = stopwordsFile.get(1);
        assertTrue(result.isPresent());
        assertNotNull(stopwordsFile.stopwordsItemList);
    }

    // Test selectList method

        SmbTreeImpl tree2 = session.getSmbTree("share2", null);
        assertNotNull(tree1);
        assertNotNull(tree2);

        // When - Release session to trigger cleanup
        session.release();

        // Then - Trees should be cleared (we can't directly verify as it's internal,
        // but the cleanup code with synchronized block ensures it happens atomically)

        () -> {
          Iterator<E> iterator = collection.iterator();
          assertTrue(collection.removeAll(MinimalCollection.of(e0(), e3())));
          iterator.next();
        });
  }

  /** Trigger the {@code other.size() >= this.size()} case in {@link AbstractSet#removeAll}. */
  @CollectionFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)