JSF problem after server restart: No saved view state could be found

Continue solving this problem, I've replaced Mojarra by MyFaces and upgrade JDK and when I continue working on form after restart of server, following error appears:

An Error Occurred:

/food.xhtmlNo saved view state could be found for the view identifier: /food.xhtml

Caused by:
javax.faces.application.ViewExpiredException - /food.xhtmlNo saved view state could be found for the view identifier: /food.xhtml

Console:

SEVERE: Exception loading sessions from persistent storage
java.lang.IllegalStateException: unread block data
    at java.io.ObjectInputStream$BlockDataInputStream.setBlockDataMode(ObjectInputStream.java:2376)

Stack Trace:

javax.faces.application.ViewExpiredException: /food.xhtmlNo saved view state could be found for the view identifier: /food.xhtml
    at org.apache.myfaces.lifecycle.RestoreViewExecutor.execute(RestoreViewExecutor.java:128)
    at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:171)
    at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:189)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:399)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:317)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:204)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:182)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:311)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)

And my web.xml:

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
         xmlns="http://java.sun.com/xml/ns/javaee" 
         xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
         id="WebApp_ID" version="3.0">

  <display-name>PORTAL</display-name>
  <session-config>
    <session-timeout>180</session-timeout>
  </session-config>

  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.xhtml</welcome-file>
    <welcome-file>index.htm</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1开发者_运维知识库</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.xhtml</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.jsf</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.faces</url-pattern>
  </servlet-mapping>

  <context-param>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>client</param-value>
  </context-param>
  <context-param>
    <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
    <param-value>resources.application</param-value>
  </context-param>
  <context-param>
    <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
    <param-value>.xhtml</param-value>
  </context-param>

</web-app>

Don't you ever met such error report?

---

This might be a bit late to reply, but I had the same problem and I spent quite some time to solve it. So, I thought this might help someone else.

By default, MyFaces does serialization of state, even when state is being saved on the server, while Mojarra does not. So, if you have some beans that are not serializable, or which are using other beans that are not serializable, you will see that error (the server is not able to serialize the object).

You can disable the serialization so MyFaces will work like Mojarra. Check this link: ViewScoped Bean cause NotSerializableException

---

As said, on the other answer, one need to define the SECRET. I followed the instructions at Secure_Your_Application. I added the below lines to web.xml (change the secrets accordingly). And dont forget to the to download the unlimited strength JCE policy files.

<context-param>
  <param-name>org.apache.myfaces.ALGORITHM</param-name>
  <param-value>AES</param-value>
</context-param>
<!-- Defines the secret (Base64 encoded) used to initialize the secret key
     for encryption algorithm. The size of it depends on the algorithm used for encryption -->
<context-param>
  <param-name>org.apache.myfaces.SECRET</param-name>
  <param-value>MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTIz</param-value>
</context-param>
<!-- Define the initialization code (Bas64 encoded) that are used to initialize the secret key used
     on the Message Authentication Code algorithm. The size of it depends on the algorithm used for mac calculation -->
<context-param>
  <param-name>org.apache.myfaces.MAC_SECRET</param-name>
  <param-value>YWJjZDEyMzQ=</param-value>
</context-param>

---

The problem you are experienced here is typical, and is caused because by default MyFaces generates a random secret for encode the view state. Each time the server restart, a new random secret is generated.

To solve this, you need to setup some web config params, specially org.apache.myfaces.SECRET and org.apache.myfaces.MAC_SECRET, so the same secret is used each time your server is restarted. Mojarra has something similar too, but I don't remember the param name at this moment.

Check this page Secure Your Application with MyFaces. There you can find all details you need to setup your encryption.

You can send questions about MyFaces by subscribing to Users and Dev Mailing Lists

---

SOLUTION: I had to consider which classes should be serializabled and which not.

---

I usually get this error. I am using myfaces 1.2 and websphere 7, but then I did not restart the server. I first stopped the server, then started again rather than doing a restart. That worked.