这个错误通常由基本连接失败引起，例如试图对安全应用程序服务器进行不安全的连接。
This error is usually caused by a basic connection failure, such as attempting to make a non-secured connection with a secure application server.
注意，这个批量复制操作做了一些假设，这在真实的应用程序中可能不安全。
Note that this bulk copy makes some assumptions, which may not be safe ones in real applications.
对于许多类型的应用程序来说，这样做并不安全。
This is not a safe thing to do for many types of applications.
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