asyncManager.async(new ConcurrentAsyncCall() {
            @Override
            public void callback() {
                runnable.run();
            }

            @Override
            public boolean asPrimary() {
                return true; // mail is primary business
            }
        });
    }

    // ===================================================================================

    boolean hasMore = true;
    boolean isPrimary = true;
    byte[] txn_buf;

    /* for doNetEnum and doFindFirstNext */
    int status;
    int numEntries;
    FileEntry[] results;

    SmbComTransactionResponse() {
        txn_buf = null;
    }

    @Override
    void reset() {
        super.reset();
        bufDataStart = 0;
        isPrimary = hasMore = true;

        assertEquals(remoteInterface, channelInfo.getRemoteInterface());
        assertEquals(ChannelState.DISCONNECTED, channelInfo.getState());
        assertFalse(channelInfo.isPrimary());
        assertEquals(0, channelInfo.getBytesSent());
        assertEquals(0, channelInfo.getBytesReceived());
    }

    @Test
    void testStateTransitions() {