They work with class or runtime retention policy.

在class或runtime这样的保持策略下，它都能运行。

youdao

It also makes it possible to retain metadata at source code level in class files, and at runtime controlled by a retention policy.

它还使得在类文件中以源代码级别保留元数据、并在运行时由保持(retention)策略控制成为可能。

youdao

It also makes it possible to retain metadata at source code level in class files, and at runtime controlled by a retention policy.

它还使得在类文件中以源代码级别保留元数据、并在运行时由保持(retention)策略控制成为可能。

youdao