LazyInitializationExceptions clicking through Portal
I added a few portlets in a new page of the default portal (using JBoss AS 4.0.2 and JBoss Portal 2.0.1 RC2). I deploy my portlets in their own WAR file. One of my portlets has a link back to the default JBoss portal. As I repeatedly click from the default portal to my portal and back to the default portal, the command prompt window (where I started JBoss) often shows org.hibernate.LazyInitializationExceptions like the one below, at seemingly random intervals. The portal seems to continue to work, except once, when I clicked faster and saw the stack displayed inside the UserPortlet window; I had to hit Reload on my browser and the default portal returned to normal. I also see these exceptions if I make my page a separate portal instead of a page of the default portal. Does anybody know what's going on?
Thanks.
org.hibernate.LazyInitializationException: cannot access loading collection
at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:168)
at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:48)
at org.hibernate.collection.PersistentSet.iterator(PersistentSet.java:134)
at org.jboss.portal.core.impl.preferences.MappedPreferenceSet.getDescendant(MappedPreferenceSet.java:163)
at org.jboss.portal.core.impl.preferences.MappedPreferenceSet$$FastClassByCGLIB$$8181c09e.invoke()
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:137)
at org.jboss.portal.core.impl.user.UserPrefSet$$EnhancerByCGLIB$$bd40ce91.getDescendant()
at org.jboss.portal.core.impl.preferences.MappedPreferenceStore.getDescendant(MappedPreferenceStore.java:73)
at org.jboss.portal.core.impl.preferences.MappedPreferenceStore.get(MappedPreferenceStore.java:39)
at org.jboss.portal.portlet.invocation.PreferencesInterceptor.invoke(PreferencesInterceptor.java:82)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.server.invocation.component.ContextDispatcherInterceptor$InvokeNextCommand.execute(ContextDispatcherInterceptor.java:94)
at sun.reflect.GeneratedMethodAccessor132.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.portal.server.servlet.CommandServlet.doGet(CommandServlet.java:49)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:539)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
at org.jboss.portal.server.invocation.component.ContextDispatcherInterceptor.invoke(ContextDispatcherInterceptor.java:58)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.core.invocation.AccessControlInterceptor.invoke(AccessControlInterceptor.java:125)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.server.invocation.component.CacheInterceptor.invoke(CacheInterceptor.java:74)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:238)
at org.jboss.portal.server.Component.invoke(Component.java:173)
at org.jboss.portal.server.invocation.portal.MainDispatcherInterceptor.invoke(MainDispatcherInterceptor.java:93)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.core.invocation.StrategyInterceptor.invoke(StrategyInterceptor.java:184)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.core.invocation.ViewInterceptor.invoke(ViewInterceptor.java:118)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.server.invocation.portal.TargetInterceptor.invoke(TargetInterceptor.java:153)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.core.invocation.ContentTypeInterceptor.invoke(ContentTypeInterceptor.java:117)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.core.invocation.UserContextInterceptor.invoke(UserContextInterceptor.java:92)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:213)
at org.jboss.portal.server.impl.invocation.InvocationImpl.invokeNext(InvocationImpl.java:238)
at org.jboss.portal.server.PortalServer.invoke(PortalServer.java:186)
at org.jboss.portal.server.servlet.AbstractMainServlet.invoke(AbstractMainServlet.java:78)
at org.jboss.portal.server.servlet.AbstractMainServlet.doGet(AbstractMainServlet.java:71)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.portal.core.servlet.TransactionFilter.doFilter(TransactionFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:481)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
