public void scheduleClose() {
        new Thread(closeTask, "TestDriver.Closer").start();
    }
<p>Initiates the shut down of this TestDriver in another thread. By doing this in a separate thread, it allows
other code to monitor its progress. Unless you need the added monitoring capability, you should use {@link
#close()} instead.</p>

@see #awaitClose(long, TimeUnit)
jdisc_core/src/main/java/com/yahoo/jdisc/test/TestDriver.java