You'll even see several tests installed, and then probably get the following (apparent) error.
甚至还会看到安装了一些测试，然后可能得到 以下（明显的）错误。
2
Despite the apparent success of the code in Listing 13, there's still a problem — what if the server responds to your request and finishes processing, but reports an error?
One he highlighted was a common developer error when working with Lucene: an apparent memory leak caused by the developer failing to close an IndexReader.