} else {
            this.creationBacktrace = null;
        }
    }

    /**
     * @return the fid
     * @throws SmbException
     */
    public int getFid() throws SmbException {
        if (!isValid()) {
            throw new SmbException("Descriptor is no longer valid");
        }
        return this.fid;
    }

- **Network & I/O** (`org.codelibs.core.net`, `org.codelibs.core.nio`) - URL utilities, UUID generation, MIME type detection, and NIO channel operations

## 🚀 Getting Started

### Requirements
- **Java 21 or higher** (Required for modern language features)
- **Maven 3.6+** or **Gradle 7+** for build management
- **Optional**: SLF4J or Commons Logging for logging support

            assertArrayEquals(expectedKey, handle.getSessionKey());
        }

        @Test
        @DisplayName("Should propagate CIFSException when getting session key")
        void testGetSessionKey_ThrowsCIFSException() throws Exception {
            DcerpcPipeHandle handle = createMockedDcerpcPipeHandle();
            CIFSException exception = new CIFSException("Test exception");

     */
    int FLAGS_INHERITED = 0x10;

    /**
     * Return the SID associated with this ACE.
     *
     * @return ACE target SID
     */
    SID getSID();

    /**
     * Returns the access mask associated with this ACE. Use the
     * constants for <code>FILE_READ_DATA</code>, <code>FILE_WRITE_DATA</code>,

                } else if (dh.hasCapability(SmbConstants.CAP_NT_SMBS)) {
                    // use the open file descriptor
                    dh.send(new Trans2SetFileInformation(dh.getConfig(), dfd.getFid(), attrs, ctime, mtime, atime),
                            new Trans2SetFileInformationResponse(dh.getConfig()));
                } else {

    <!--
      | We may potentially want to export these, but right now I'm not sure that anything Guice specific needs
      | to be made available to plugin authors. If we find people are getting fancy and want to take advantage of
      | Guice specifics we can expose that later. Really some testing needs to be done to see full hiding

    response = client.post(
        "/admin/?token=jessica", headers={"X-Token": "fake-super-secret-token"}
    )
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Admin getting schwifty"}


def test_admin_invalid_header(client: TestClient):
    response = client.post("/admin/", headers={"X-Token": "invalid"})
    assert response.status_code == 400, response.text

            assertNotNull(cancelRequest);
            assertInstanceOf(Smb2CancelRequest.class, cancelRequest);
            Smb2CancelRequest smb2Cancel = (Smb2CancelRequest) cancelRequest;
            assertEquals(mid, smb2Cancel.getMid());
            assertEquals(asyncId, smb2Cancel.getAsyncId());
        }
    }

    @Nested
    @DisplayName("Chain Operation Tests")
    class ChainOperationTests {

        @Test

        when(tree.isSMB2()).thenReturn(false);
        when(tree.getConfig()).thenReturn(mock(Configuration.class));
        when(tree.hasCapability(SmbConstants.CAP_NT_SMBS)).thenReturn(true);
        when(handle.getFid()).thenReturn(fid);
        when(tree.send(any(CommonServerMessageBlockRequest.class), any(), any(), any())).thenReturn(resp);
    }

    // Ensures watch() fails fast if the underlying handle is invalid
    @Test

        }

        @Test
        @DisplayName("Should throw NullPointerException with null configuration")
        void testConstructorWithNullConfig() {
            // The parent class requires a non-null configuration for getPid()
            assertThrows(NullPointerException.class, () -> {
                new Trans2GetDfsReferralResponse(null);
            });
        }
    }

    @Nested
    @DisplayName("Constants Tests")