[jboss-user] [Clustering/JBoss] - Re: jBoss Cluster jvmRoute Value and HTTP Server Request Pro

[saisurya_bhasker]

i am getting the following exception
java.lang.IllegalArgumentException: setAttribute: Non-serializable attribute
        at org.jboss.web.tomcat.service.session.ClusteredSession.setAttribute(ClusteredSession.java:535)
        at org.apache.catalina.session.StandardSessionFacade.setAttribute(StandardSessionFacade.java:130)
        at org.springframework.web.servlet.mvc.AbstractFormController.showForm(AbstractFormController.java:566)
        at org.springframework.web.servlet.mvc.SimpleFormController.showForm(SimpleFormController.java:198)
        at org.springframework.web.servle

after adding distributable  tag in my application the session is not replicating , 
i hav googled for this error and found that my session should be serialized, please clarify me on this is it must to serialize or else is there any other way to do session replication




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