// Create the file
        SmbFile file = new SmbFile(baseUrl + "shared/" + filename, testContext);
        file.createNewFile();
        assertTrue(file.exists(), "File should exist after creation");

        // Ensure proper cleanup before delete
        file.close();
        Thread.sleep(500); // Give more time for handle release
        System.gc(); // Force garbage collection
        Thread.sleep(200);

        }

        if (usage == 0) {
            if (log.isDebugEnabled()) {
                log.debug("Usage dropped to zero, release connection " + this.transport);
            }
            // Ensure atomic cleanup of all resources
            synchronized (this) {
                // Double-check usage count within synchronized block
                if (this.usageCount.get() != 0) {

                                logger.debug("Failed to close LDAP context", e);
                            }
                        }
                    }
                } finally {
                    // Ensure ThreadLocal is always cleaned up, even if context.close() fails
                    contextLocal.remove();
                }
            }
        }
    }

                } else if (last == null) {
                    // don't have enough credits/space for the first request, block until available
                    // for space there is nothing we can do, callers need to make sure that a single message fits

                    try {
                        final long timeout = getResponseTimeout(chain);
                        if (params.contains(RequestParam.NO_TIMEOUT)) {