The only workaround I can think of is to place your classes in a JAR that is outside the scope of the WAR.
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Dennis > Muhlestein > Sent: Friday, February 21, 2003 12:41 PM > To: [EMAIL PROTECTED] > Subject: [JBoss-user] Help with Clustering > > > Having still had no luck in getting Http Session Clustering to cluster > objects, I thought I'd simplify the test. > > Using tomcat4.1.18 embedded > Tried jboss 3.0.6 and 3.2.0rc2. > jdk 1.4.1.01 > linux. > > clustering with two identical linux boxes/ idenitical cluster configs in > jboss. I used the default config files provided with jboss so I didn't > attach them. If anyone is interested in them let me know. > > TEST 1: > > * simple servlet sets a String session attribute for login management. > ie: request.getSession().setAttribute ( "username", username ); > > * take one of the boxes down. - attribute is in clusted session - > continued browsing works. > > * bring box back up. - attribute is distributed to new box - browsing > works. > > * bring other box down - attribute is still clustered - browsing works. > > TEST 1 result: clustering works ok. > > TEST 2: > > * simple servlet uses simple Data Object instead of string: > ie: > --- Login class > public class LoginData implements java.io.Serializable { > public String username = null; > public LoginData ( String username ) { this.username = username; } > } > --- Session usage > LoginData ld = New LoginData( username ); > request.getSession().setAttribute ( "logindata", ld ); > > * login works but exception is thrown: > > EJBException: > javax.ejb.EJBException: java.lang.ClassNotFoundException: LoginData (no > security manager: RMI class loader disabled) > at > org.jboss.ha.httpsession.beanimpl.ejb.ClusteredHTTPSessionBeanImpl > .unserializeSession(ClusteredHTTPSessionBeanImpl.java:139) > at > org.jboss.ha.httpsession.beanimpl.ejb.ClusteredHTTPSessionBeanImpl > .getSession(ClusteredHTTPSessionBeanImpl.java:79) > at sun.reflect.GeneratedMethodAccessor114.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAc > cessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:324) > at > org.jboss.ejb.EntityContainer$ContainerInterceptor.invoke(EntityCo > ntainer.java:1194) at > org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke(Enti tySynchronizationInterceptor.java:330) > at > org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityInsta > nceInterceptor.java:174) > at > org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockInter > ceptor.java:107) > at > org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:208) > at > org.jboss.ejb.EntityContainer.invoke(EntityContainer.java:493) > at org.jboss.ejb.Container.invoke(Container.java:712) > at > org.jboss.ejb.EntityContainer.invoke(EntityContainer.java:1058) > at > org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:517) > at > org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:99) > at > org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor. > java:102) > at > org.jboss.proxy.TransactionInterceptor.invoke(TransactionIntercept > or.java:77) > at > org.jboss.proxy.ejb.EntityInterceptor.invoke(EntityInterceptor.java:116) > at > org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76) > at $Proxy27.getSession(Unknown Source) > at > org.jboss.ha.httpsession.server.ClusteredHTTPSessionService.getHtt > pSession(ClusteredHTTPSessionService.java:132) > ...... more > > * if next request goes to same box, the LoginData is in the session and > the username can be retrieved. The LoginData attribute is NOT clustered > though. > > * if I take the first box down, the request now fails to grab the > session on the second box. The exception on the 2nd box is the exact > same as the one above. > > > I tried putting the data class in a jar by itself in the lib directory > just for kicks but I still got the exact same issue. > > Any help would be appriciated. At this point, I'm going to consider > alternate technology for clustering. Am I doing something drastically > wrong? I couldn't find any bugs related to this issue on sourceforge so > I'm assuming it hasn't been addressed very well. > > Does anyone have anything like this implemented yet? > > Any thoughts appreciated. > > -Dennis > > > > > > > ------------------------------------------------------- > This SF.net email is sponsored by: SlickEdit Inc. Develop an edge. > The most comprehensive and flexible code editor you can use. > Code faster. C/C++, C#, Java, HTML, XML, many more. 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