google app engine by 3 comments

GAE + JSF : View /hello.xhtml could not be restored

Problem

Deployed on GAE production environment, when navigate from one page/view to another page/view, GAE shows error message “View xxx could not be restored“?

  1. JSF 2.1.7
  2. Google App Engine SDK 1.6.3
view can not be restored

P.S No problem at local GAE development.

Solution

By default, JSF 2 is using server for session management, and it’s not supported in GAE (tested with 1.6.3). To solve it, update web.xml file, define “javax.faces.STATE_SAVING_METHOD” , put value as “client“.

File : web.xml


	<context-param>
		<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
		<param-value>client</param-value>
	</context-param>

References

  1. Developing Web Applications with JavaServer Faces
  2. Using JSF 2 with Google App Engine

3 comments on “GAE + JSF : View /hello.xhtml could not be restored”

  1. Hello, Thanks for you answer, Please what about JSF 1.2

    Reply

  2. Not working. still getiing error viewid:/hello.xhtml – view /hello.xhtml could not be restored. in web IDE

    Reply

  3. Hi mkyong,

    Thanks for the information but, after that change, we receive the error:

    : ERROR: MAC did not verify!

    Is there any solution for that?

    Reply

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