Hi Sherman, Thanks for answer, I put here the traceback. After google search, it 's perhaps a spring web flow version problem ... but I am not sure. After some time (restart reload, and restart again and again) this error go on ... Some strange caches ..... ?? So my pop-up Input control come on my screen but the input control with " select distinct division from operation where numetab = $P{NUM_ETAB}" on is still empty. is this the refresh problem ? Where can I get the last version on Cascading Input Control ? Thanks for your products Sorry for bad english.... the traceback NotSerializableException exception : [JPivot] 21 sept. 2009 17:37:04,512 ERROR [session ] org.apache.catalina.session.StandardManager#doLoad: "IOException" lors du chargement des sessions persista ntes: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.jaspersoft.jasperserver.api.engine.jasperreports.domain.impl.Report UnitResult java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.jaspersoft.jasperserver.api.engine.jasperreports.domain.impl.ReportUnitRe sult at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1309) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at java.util.HashMap.readObject(HashMap.java:1067) at sun.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1809) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1392) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:921) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:393) at org.apache.catalina.session.StandardManager.load(StandardManager.java:320) at org.apache.catalina.session.StandardManager.start(StandardManager.java:636) at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:431) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4155) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:904) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:867) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:474) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021) at org.apache.catalina.core.StandardHost.start(StandardHost.java:718) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442) at org.apache.catalina.core.StandardService.start(StandardService.java:450) at org.apache.catalina.core.StandardServer.start(StandardServer.java:709) at org.apache.catalina.startup.Catalina.start(Catalina.java:551) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432) Caused by: java.io.NotSerializableException: com.jaspersoft.jasperserver.api.engine.jasperreports.domain.impl.ReportUnitResult at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) at java.util.HashMap.writeObject(HashMap.java:1039) at sun.reflect.GeneratedMethodAccessor172.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:917) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1339) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302) at org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1468) at org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:938) at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:516) at org.apache.catalina.session.StandardManager.unload(StandardManager.java:462) at org.apache.catalina.session.StandardManager.stop(StandardManager.java:666) at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4358) at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:892) at org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1164) at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1135) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:312) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1054) at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1066) at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:447) at org.apache.catalina.core.StandardService.stop(StandardService.java:512) at org.apache.catalina.core.StandardServer.stop(StandardServer.java:743) at org.apache.catalina.startup.Catalina.stop(Catalina.java:601) at org.apache.catalina.startup.Catalina.start(Catalina.java:576) ... 6 more [JPivot] 21 sept. 2009 17:37:04,527 ERROR [session ] org.apache.catalina.session.StandardManager#start: Exception au chargement des sessions depuis le stockage persistant (persistent storage) java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.jaspersoft.jasperserver.api.engine.jasperreports.domain.impl.ReportUnitRe sult at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1309) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at java.util.HashMap.readObject(HashMap.java:1067) at sun.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1809) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1392) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:921) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:393) at org.apache.catalina.session.StandardManager.load(StandardManager.java:320) at org.apache.catalina.session.StandardManager.start(StandardManager.java:636) at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:431) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4155) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:904) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:867) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:474) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021) at org.apache.catalina.core.StandardHost.start(StandardHost.java:718) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442) at org.apache.catalina.core.StandardService.start(StandardService.java:450) &nbs