}

    @Override
    public void invalidate() {
        if (valid && memoryRegister != null) {
            try {
                // In real implementation, this would deregister the memory:
                // memoryRegister.deregisterMemory();

                log.debug("DiSNI memory region invalidated");
            } catch (Exception e) {

    }
    
    /**
     * Invalidate this memory region
     */
    public abstract void invalidate();
    
    protected abstract int generateLocalKey();
    protected abstract int generateRemoteKey();
    protected abstract long getBufferAddress(ByteBuffer buffer);
    
    @Override
    public void close() {
        invalidate();
        valid = false;
    }
}
```

                    this.currentHash = newHash.clone();
                }
            }
        }

        public boolean isValid() {
            return isValid;
        }

        public void invalidate() {
            this.isValid = false;
            // Clear sensitive data
            synchronized (hashLock) {
                Arrays.fill(currentHash, (byte) 0);
            }
        }
    }

        entry.updateChild("file1.txt", 1024L, 1000L, false, 0x20, 500L, 800L);
        entry.updateChild("file2.txt", 2048L, 2000L, false, 0x20, 600L, 900L);
        entry.markComplete();

        // Invalidate the cache
        entry.invalidate();

        assertFalse(entry.isComplete());
        assertTrue(entry.hasChanges());
        assertTrue(entry.getChildren().isEmpty());
    }

    @Test

     */
    public static int SMB2_CHANNEL_NONE = 0x0;
    /**
     * Channel type for RDMA version 1
     */
    public static int SMB2_CHANNEL_RDMA_V1 = 0x1;
    /**
     * Channel type for RDMA version 1 with invalidate
     */
    public static int SMB2_CHANNEL_RDMA_V1_INVALIDATE = 0x2;

    private byte[] fileId;
    private final byte[] outputBuffer;
    private final int outputBufferOffset;
    private byte padding;

        when(cfg.isTraceResourceUsage()).thenReturn(false);
        stubValidTree(1L, true, true);
        SmbFileHandleImpl h = new SmbFileHandleImpl(cfg, new byte[] { 0x01, 0x02 }, tree, "//x", 0, 0, 0, 0, 0L);
        // invalidate
        h.markClosed();

        SmbException ex1 = assertThrows(SmbException.class, h::getFid);
        assertEquals("Descriptor is no longer valid", ex1.getMessage());

   *
   * @since 12.0
   */
  void putAll(Map<? extends K, ? extends V> m);

  /** Discards any cached value for key {@code key}. */
  void invalidate(@CompatibleWith("K") Object key);

  /**
   * Discards any cached values for keys {@code keys}.
   *
   * @since 11.0
   */
  // For discussion of <? extends Object>, see getAllPresent.

        new Receiver<ReferenceEntry<Integer, Integer>>() {
          @Override
          public void accept(ReferenceEntry<Integer, Integer> entry) {
            Integer key = entry.getKey();
            cache.invalidate(key);
          }
        });
  }

  public void testEviction_lru() {
    // test lru within a single segment
    IdentityLoader<Integer> loader = identityLoader();

        new Receiver<ReferenceEntry<Integer, Integer>>() {
          @Override
          public void accept(ReferenceEntry<Integer, Integer> entry) {
            Integer key = entry.getKey();
            cache.invalidate(key);
          }
        });
  }

  public void testEviction_lru() {
    // test lru within a single segment
    IdentityLoader<Integer> loader = identityLoader();

   *
   * @since 12.0
   */
  void putAll(Map<? extends K, ? extends V> m);

  /** Discards any cached value for key {@code key}. */
  void invalidate(@CompatibleWith("K") Object key);

  /**
   * Discards any cached values for keys {@code keys}.
   *
   * @since 11.0
   */
  // For discussion of <? extends Object>, see getAllPresent.