try {
      assertFalse(getMap().remove(null, v3()));
    } catch (NullPointerException tolerated) {
      // since the operation would be a no-op, the exception is not required
    }
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_REMOVE, absent = ALLOWS_NULL_VALUE_QUERIES)
  public void testRemove_nullValueQueriesUnsupported() {
    try {

    verifyOccupiedMethodsInAnotherThread(monitor, false, false, 0);
    monitor.enter();
    try {
      verifyOccupiedMethodsInCurrentThread(monitor, true, true, 1);
      verifyOccupiedMethodsInAnotherThread(monitor, true, false, 0);
      monitor.enter();
      try {
        verifyOccupiedMethodsInCurrentThread(monitor, true, true, 2);
        verifyOccupiedMethodsInAnotherThread(monitor, true, false, 0);

    try {
      assertFalse(getMap().remove(null, v3()));
    } catch (NullPointerException tolerated) {
      // since the operation would be a no-op, the exception is not required
    }
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_REMOVE, absent = ALLOWS_NULL_VALUE_QUERIES)
  public void testRemove_nullValueQueriesUnsupported() {
    try {

    try {
      assertFalse(getMap().remove(null, v3()));
    } catch (NullPointerException tolerated) {
      // since the operation would be a no-op, the exception is not required
    }
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_REMOVE, absent = ALLOWS_NULL_VALUE_QUERIES)
  public void testRemove_nullValueQueriesUnsupported() {
    try {

    verifyOccupiedMethodsInAnotherThread(monitor, false, false, 0);
    monitor.enter();
    try {
      verifyOccupiedMethodsInCurrentThread(monitor, true, true, 1);
      verifyOccupiedMethodsInAnotherThread(monitor, true, false, 0);
      monitor.enter();
      try {
        verifyOccupiedMethodsInCurrentThread(monitor, true, true, 2);
        verifyOccupiedMethodsInAnotherThread(monitor, true, false, 0);

            @Override
            public void hook(final FwAssistantDirector assistantDirector) {
                // Use reflection to call private method
                try {
                    Method method = FessCurtainFinallyHook.class.getDeclaredMethod("shutdownCommonsHttpClient");
                    method.setAccessible(true);
                    method.invoke(this);

    if (mightBeAndroid()) {
      try {
        helper = new UnsafeAtomicHelper();
      } catch (Exception | Error unsafeFailure) { // sneaky checked exception
        thrownUnsafeFailure = unsafeFailure;
        // Catch absolutely everything and fall through to AtomicReferenceFieldUpdaterAtomicHelper.
        try {
          helper = new AtomicReferenceFieldUpdaterAtomicHelper();

            return false;
        }

        // Validate key lengths
        try {
            int expectedKeyLength = getKeyLength();
            byte[] encKey = getEncryptionKey();
            byte[] decKey = getDecryptionKey();

            try {
                boolean valid =

            generating = false;
        }
    }

    @Override
    public void tearDown() throws Exception {
        if (thumbnailManager != null) {
            try {
                thumbnailManager.destroy();
            } catch (Exception e) {
                // Ignore exceptions during teardown
            }
        }
        if (tempDir != null && tempDir.exists()) {

            AtomicInteger successCount = new AtomicInteger(0);
            AtomicInteger failureCount = new AtomicInteger(0);

            // Submit tasks that try to sign data
            for (int i = 0; i < 5; i++) {
                executor.submit(() -> {
                    try {
                        startLatch.await();
                        byte[] data = new byte[128];
                        // Initialize with proper SMB2 header