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Editorial Team
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Asked: 2026-05-19T09:14:43+00:00

I started a project with Google app engine, when I use eclipse to start,

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I started a project with Google app engine, when I use eclipse to start, it automatically generate 4 package for me. My app package name is
com.appspot.xxxx

and it auto generate these three for me:

com.appspot.xxxx.client 
com.appspot.xxxx.server 
com.appspot.xxxx.shared

What does these three package convention means? Thank you.

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1 Answer

  1. Editorial Team

    First of all, to be clear, these packages are being created because you’ve chosen to create a Web Application that includes GWT code.

    GWT compiles the code in your client and shared packages (by convention) into JavaScript which will run on your user’s browser.

    The GWT client-side code will communicate to your server, whose code will go in the server package. The server-side code can (again, by convention) use code in the shared package, so logic like validation can be used in both client and server code.

    This is not an artifact of the app being an App Engine app, but rather of it being a GWT app.

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