RpcTokenImplementation

I got the following tip in https://developers.google.com/web-toolkit/doc/latest/DevGuideSecurityRpcXsrf.

Tip: To specify which RpcToken implementation GWT should generate serializers for use @RpcTokenImplementation annotation. 

I can not understand this tip. Should I use this annotation -  @RpcTokenImplementation for my POJO? Please clarify it.




Thanks,




David

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