// Given
        SmbSessionImpl session = new SmbSessionImpl(mockContext, "testhost", "testdomain", mockTransport);

        // Add some trees
        SmbTreeImpl tree1 = session.getSmbTree("share1", null);
        SmbTreeImpl tree2 = session.getSmbTree("share2", null);
        assertNotNull(tree1);
        assertNotNull(tree2);

        // When - Release session to trigger cleanup
        session.release();

                    try (SmbSessionInternal smbSession = trans.getSmbSession(this.ctx, host, targetDomain).unwrap(SmbSessionInternal.class);
                            SmbTreeImpl uct = smbSession.getSmbTree(share, null).unwrap(SmbTreeImpl.class);
                            SmbTreeImpl ct = connectTree(loc, host, share, trans, uct, dr)) {

                        if (dr != null) {

        // Session starts with usage count > 0
        assertTrue(session.isInUse(), "Session should be in use initially");

        // Create and release trees
        SmbTreeImpl tree = session.getSmbTree("share1", null);
        assertNotNull(tree, "Tree should be created");
        tree.release();

        // Release the session (back to initial state)
        session.release();

                            // Test concurrent tree operations (should be thread-safe with CopyOnWriteArrayList)
                            long opStart = System.nanoTime();
                            session.getSmbTree(shareName, null);
                            long opEnd = System.nanoTime();

                            totalTime.addAndGet(opEnd - opStart);
                            treeOperations.incrementAndGet();

        if (this.sessionKey == null) {
            throw new CIFSException("No session key available");
        }
        return this.sessionKey;
    }

    @Override
    public SmbTreeImpl getSmbTree(String share, String service) {
        if (share == null) {
            share = "IPC$";
        }

        synchronized (this.trees) {
            for (SmbTreeImpl t : this.trees) {

        when(internal.getSmbSession(eq(ctx), eq("server.test"), isNull())).thenReturn(session);
        when(session.unwrap(SmbSessionInternal.class)).thenReturn(session);
        when(session.getSmbTree(eq("IPC$"), isNull())).thenReturn(tree);
        when(tree.unwrap(SmbTreeInternal.class)).thenReturn(tree);

        doReturn(mockTransport).when(poolSpy).getSmbTransport(eq(ctx), eq(address), anyInt(), eq(false), anyBoolean());

                SmbSessionInternal smbSession = smbTransport.getSmbSession(tf, dc.getHostName(), null).unwrap(SmbSessionInternal.class);
                SmbTreeInternal tree = smbSession.getSmbTree(tf.getConfig().getLogonShare(), null).unwrap(SmbTreeInternal.class)) {
            tree.connectLogon(tf);
        }
    }

    /**
     * Perform health check on connections
     */

                ssn = trans.getSmbSession(NtlmPasswordAuthentication.NULL);
                tree = ssn.getSmbTree(null, null);
            } else if ((a = NtlmAuthenticator.requestNtlmPasswordAuthentication(url.toString(), sae)) != null) {
                auth = a;
                ssn = trans.getSmbSession(auth);
                tree = ssn.getSmbTree(share, null);
                tree.inDomainDfs = dfs.resolve(hostName, tree.share, null, auth) != null;

        }

        try (SmbSessionImpl sess = getSmbSession(ctx, targetHost, targetDomain);
                SmbTransportImpl transport = sess.getTransport();
                SmbTreeImpl ipc = sess.getSmbTree("IPC$", null)) {

            final DfsReferralRequestBuffer dfsReq = new DfsReferralRequestBuffer(path, 3);
            DfsReferralResponseBuffer dfsResp;
            if (isSMB2()) {