assertThrows(IllegalStateException.class, () -> {
            Handler.setURLStreamHandlerFactory(mockFactory2); // Second call, should fail.
        }, "Setting the factory a second time should throw IllegalStateException.");
    }

    @Test
    void testOpenConnection_WithCustomFactory() throws Exception {

    private final CIFSContext context;
    private final ScheduledExecutorService cleanupExecutor;
    private static final long DEFAULT_LEASE_CLEANUP_INTERVAL = 60000; // 60 seconds
    private static final int DEFAULT_LEASE_BREAK_TIMEOUT = 60; // 60 seconds per MS-SMB2

    /**
     * Create a new lease manager
     *
     * @param context CIFS context
     */
    public LeaseManager(CIFSContext context) {

bin/
.classpath
.project
/target
/.settings

                    endLatch.countDown();
                }
            });
        }

        startLatch.countDown(); // Start all threads
        assertTrue(endLatch.await(30, TimeUnit.SECONDS), "All threads should complete within timeout");
        executor.shutdown();

        long overallEnd = System.nanoTime();
        double overallTimeMs = (overallEnd - overallStart) / 1_000_000.0;

        // Context handle (20 bytes) - this is both input and output (modified)
        if (contextHandle != null) {
            buf.writeOctetArray(contextHandle, 0, Math.min(contextHandle.length, 20));
            // Pad with zeros if context handle is shorter than 20 bytes
            for (int i = contextHandle.length; i < 20; i++) {
                buf.enc_ndr_small(0);
            }
        } else {

        // Mock successful but empty response
        when(treeHandle.send(any(), any(), (RequestParam[]) any())).thenAnswer(invocation -> {
            // The response is the second argument
            Object response = invocation.getArgument(1);
            // Return it unchanged (which will have default values = empty results)
            return response;
        });

     */
    protected ObjectUtil() {
    }

    /**
     * Returns true if the two objects are equal, or both are null.
     *
     * @param object1 the first object
     * @param object2 the second object
     * @return true if equal or both null, false otherwise
     */
    public static boolean equals(final Object object1, final Object object2) {
        if (object1 == object2) {
            return true;
        }

    CompletableFuture<Void> future = CompletableFuture.runAsync(() -> {
        handleLeaseBreak(key, newState);
    });
    
    try {
        future.get(5, TimeUnit.SECONDS);  // 5 second timeout
    } catch (TimeoutException e) {
        // Force lease release if break handling times out
        releaseLease(key);
        log.warn("Lease break timeout for key: {}", key);
    }
}
```

        if (t != 0L) {
            t = (t + SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601) * 10000L;
        }
        writeInt8(t, dst, dstIndex);
    }

    /**
     * Reads a Unix time value (32-bit seconds) and converts it to Java time in milliseconds
     * @param buffer the source byte array
     * @param bufferIndex the starting index in the source array
     * @return the time value in milliseconds since January 1, 1970 UTC

        // Signal all threads to start at once
        startLatch.countDown();

        // Wait for all threads to complete
        assertTrue("Threads did not complete in time", doneLatch.await(5, TimeUnit.SECONDS));

        // All threads should fail with the same IOException (endpoint is blank)
        // But importantly, there should be no race condition errors
        assertEquals(threadCount, failureCount.get());