logger.debug("Crawling Access Exception at {}", urlQueue.getUrl(), e);
        } else if (e.isInfoEnabled()) {
            logger.info(e.getMessage());
        } else if (e.isWarnEnabled()) {
            logger.warn("Crawling Access Exception at " + urlQueue.getUrl(), e);
        } else if (e.isErrorEnabled()) {
            logger.error("Crawling Access Exception at " + urlQueue.getUrl(), e);
        }
    }

        } catch (Exception e) {
            throw new IOException("RDMA connection failed", e);
        }
    }
    
    @Override
    public void send(ByteBuffer data, RdmaMemoryRegion region) throws IOException {
        try {
            DisniMemoryRegion disniRegion = (DisniMemoryRegion) region;
            IbvSendWR sendWR = new IbvSendWR();
            sendWR.setWr_id(System.nanoTime());

    void testFallbackWhenOpen() throws Exception {
        // Open the circuit
        circuitBreaker.tripBreaker();

        String result = circuitBreaker.call(() -> "primary", () -> "fallback");

        assertEquals("fallback", result);
    }

    @Test
    @DisplayName("Test transition to HALF_OPEN after timeout")
    void testTransitionToHalfOpen() throws Exception {
        // Open the circuit

        // We need to create a proper ASN1TaggedObject with APPLICATION tag class
        // Create a custom base object that throws IOException
        ASN1Encodable badBase = new ASN1Encodable() {
            @Override
            public ASN1Primitive toASN1Primitive() {
                // Return a primitive that will throw IOException when getEncoded is called

        when(response.getHeaderStart()).thenReturn(0);

        SMBProtocolDecodingException exception = assertThrows(SMBProtocolDecodingException.class,
                () -> response.readBytesWireFormat(buffer, bufferIndex), "Should throw exception for unknown quota info class");

        assertTrue(exception.getMessage().contains("Unknown quota info class"));
    }

    @Test

            assertEquals(1, securityExceptions.length, "getSecurity() should declare IOException");
            assertEquals(IOException.class, securityExceptions[0], "Should declare IOException");
            assertEquals(1, ownerExceptions.length, "getOwnerUser() should declare IOException");
            assertEquals(IOException.class, ownerExceptions[0], "Should declare IOException");
        }

        @Test

    }

    /**
     * Constructs a new PAC decoding exception with the specified detail message.
     * @param message the detail message
     */
    public PACDecodingException(final String message) {
        this(message, null);
    }

    /**
     * Constructs a new PAC decoding exception with the specified cause.
     * @param cause the cause of the exception
     */
    public PACDecodingException(final Throwable cause) {

                } else {
                    String errorMsg = response != null ? response.getError() : "Response was null";
                    throw new IOException("Witness registration failed: " + errorMsg);
                }

            } catch (Exception e) {
                log.error("Failed to register for witness notifications", e);
                throw new RuntimeException(e);
            }
        });
    }

        assertNotNull(errorHandler, "Error handler should not be null");

        // Test error classification for different exception types
        Exception hardwareError = new RuntimeException("RDMA hardware not supported");
        Exception networkError = new java.io.IOException("Network connection failed");
        Exception timeoutError = new java.net.SocketTimeoutException("Operation timed out");

        // Test fallback logic

            assertNull(unwrapped);
        }
    }

    @Nested
    @DisplayName("Exception handling tests")
    class ExceptionHandlingTests {

        @Test
        @DisplayName("doEnum rethrows CIFSException when not UnknownHostException")
        void doEnum_rethrowsCIFSException_whenNotUnknownHost() throws Exception {
            // Arrange
            SmbFile parent = mock(SmbFile.class, RETURNS_DEEP_STUBS);