If your data access code catches an exception, do not ignore it.

如果数据访问代码捕获了一个异常，不要忽略它。

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The exception that is thrown when there is an attempt to access an unloaded class.

尝试访问已卸载的类时所引发的异常。

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If access is not allowed, an exception is thrown.

如果访问不允许，抛出异常。

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If access is not allowed, an exception is thrown.

如果访问不允许，抛出异常。

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