Is it possible to automatically import other packages in the caller's namespace?

If a user imports:

com.my.package

Is it possible for me to do something in my package, so that anot开发者_StackOverflow社区her package gets imported as well? For example, I'd like to have java.io be automatically imported.

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No, it is not possible. However, you can create a package object and put type definitions in it, so that you'll get aliases for classes you think are relevant.