Any caller that attempted to pass a task to a pool thread would find the pool empty, and its thread would block while it waited for an available pool thread.

试图向池线程传递任务的调用者都会发现池为空，在调用者等待一个可用的池线程时，它的线程将阻塞。

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A block is allocated from the free pool by first converting the requested bytes to an index in the bucket array, using the following equation.

当从空闲池分配块时，首先使用以下公式把请求的字节数转换为bucket数组索引。

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In case of an exception, the catch block simply called the exception publisher, then returned the executing thread back to the thread pool.

如果发生了异常，这个catch块只是简单地调用异常发布程序，然后将正在执行的线程返回到线程池中。

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Around the block, the development has an Olympic-size swimming pool and tennis courts.

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