assertEquals(2, resolvedFirst.length);
        assertEquals("user1", ((SID) resolvedFirst[0]).acctName);
        assertEquals("user2", ((SID) resolvedFirst[1]).acctName);

        // Second call with overlap should use cache for s2 and s3, requiring only s3 if not cached
        // Mark s3 unresolved to force resolve of one element
        doAnswer(inv -> {
            SID[] toResolve = inv.getArgument(2);

            /* Yes, there is the potential to drop packets
             * because we might close the socket during a
             * request. However the chances are slim and the
             * retry code should ensure the overall request
             * is serviced. The alternative complicates things
             * more than I think is worth it.
             */

            if (socket != null) {
                socket.close();

            counter.addAndGet(1024);
        }

        long end = System.nanoTime();
        double totalTimeMs = (end - start) / 1_000_000.0;

        System.out.printf("Overall Performance Test: completed in %.2f ms%n", totalTimeMs);

        // Should complete very quickly with all optimizations
        assertTrue(totalTimeMs < 100, "All operations should complete quickly with performance fixes");

        long lastWrite = 123456789L;
        h.close(lastWrite);

        // Verify SMB1 close path uses request + response overload
        ArgumentCaptor<CommonServerMessageBlockRequest> reqCap = ArgumentCaptor.forClass(CommonServerMessageBlockRequest.class);
        ArgumentCaptor<SmbComBlankResponse> respCap = ArgumentCaptor.forClass(SmbComBlankResponse.class);

             * Yes, there is the potential to drop packets
             * because we might close the socket during a
             * request. However the chances are slim and the
             * retry code should ensure the overall request
             * is serviced. The alternative complicates things
             * more than I think is worth it.
             */

            if (this.socket != null) {
                this.socket.close();

             * It is invalid for the source path to be a child of the destination
             * path or visa versa.
             */
            if (this.fileLocator.overlaps(dest.getLocator())) {
                throw new SmbException("Source and destination paths overlap.");
            }

            final WriterThread w = new WriterThread();
            w.setDaemon(true);

            try {
                w.start();

                    && canon.regionMatches(true, 0, dest.canon, 0, Math.min(canon.length(), dest.canon.length()))) {
                throw new SmbException("Source and destination paths overlap.");
            }
        } catch (final UnknownHostException uhe) {}

        w = new WriterThread();
        w.setDaemon(true);
        w.start();