Wildfly 10 bean in jsp sesson scope needs Serializable? - wildfly

Question

I'm migrating a bunch of web applications from JBoss 4.2.2 to Wildfly 10. For Wildfly 10 I use standalone mode, and use session sharing feature, so all the war files are under the same ear.
I have a jsp file that has a line
<jsp:useBean id="session_counter" class="com.count.CounterBean" scope="session" />
When I tried to accessing this page, I got the NotSerializableException error. I'm not using cluster, no EJB.
I tried to diable the following configuration from standalone.xml, it doesnot work.
<cache name="distributable" passivation-store-ref="infinispan" aliases="passivating clustered"/>
I only need a java object to be in session scope, is it required to implement Serializable interface? I'm trying to avoid changing code. Does anyone know any configuration or work around for this issue?
The following is the stacktrace:
Stacktrace:
at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:471)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:402)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:346)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at filters.ProgramNameFilter.doFilter(ProgramNameFilter.java:109)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.jsp.JspFileHandler.handleRequest(JspFileHandler.java:32)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:51)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:56)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:284)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:263)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:174)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:793)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: org.infinispan.commons.marshall.NotSerializableException: com.count.CounterBean
at org.wildfly.clustering.web.infinispan.session.coarse.CoarseSessionAttributes.setAttribute(CoarseSessionAttributes.java:63)
at org.wildfly.clustering.web.undertow.session.DistributableSession.setAttribute(DistributableSession.java:148)
at io.undertow.servlet.spec.HttpSessionImpl.setAttribute(HttpSessionImpl.java:170)
at org.apache.jasper.runtime.PageContextImpl.doSetAttribute(PageContextImpl.java:337)
at org.apache.jasper.runtime.PageContextImpl.setAttribute(PageContextImpl.java:317)
at org.apache.jsp.generic2.generic_005fenter_005fnew.index_jsp._jspService(index_jsp.java:176)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:433)
... 38 more
Caused by: org.infinispan.commons.marshall.NotSerializableException: com.count.CounterBean
Thanks a lot,
Helen