e>GlideExecutor.UncaughtThrowableStrategy.DEFAULT</code></a>
 uncaught throwable strategy, and the <code>SynchronousQueue</code> since using default unbounded
 blocking queue, for example, <code>PriorityBlockingQueue</code> effectively won't create more than
 <code>corePoolSize</code> threads. See <a href=
 "http://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor.html">
 ThreadPoolExecutor documentation</a>.

 <p>Source executors allow network operations on their threads.</div>
</li>
