Tomcat Session persistence causing startup errors

From Foochal

I use spring webflow and got this error when restarting the container

INFO: Deploying web application archive foo.war
Jul 28, 2009 3:38:38 PM org.apache.catalina.session.StandardManager doLoad
SEVERE: ClassNotFoundException while loading persisted sessions: java.lang.ClassNotFoundException: org.springframework.webflow.conversation.impl.ConversationContainer
java.lang.ClassNotFoundException: org.springframework.webflow.conversation.impl.ConversationContainer

Solution

I saw this snippet in the default context.xml which ships in tomcat/conf/

<!-- Uncomment this to disable session persistence across Tomcat restarts -->
<!--    <Manager pathname="" /> -->

So, I uncommented it as follows:

<!-- Uncomment this to disable session persistence across Tomcat restarts -->
    <Manager pathname="" />

And the error went away.