Discussion :

[stc074]

Bonjour, j'utilise de javabeans que je sérialise en implémentant la bonne interface, je n'en sais pas plus sur le sujet, les logs de netbeans me renvoient des fois cette erreur :

Code :

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16-Jun-2014 18:40:02.869 SEVERE [localhost-startStop-1] org.apache.catalina.session.StandardManager.startInternal Exception au chargement des sessions depuis le stockage persistant (persistent storage)
 java.io.InvalidClassException: classes.User; local class incompatible: stream classdesc serialVersionUID = 3650880052958784110, local class serialVersionUID = 5195041477888778283
	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:621)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1623)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
	at java.util.ArrayList.readObject(ArrayList.java:776)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
	at java.util.HashMap.readObject(HashMap.java:1396)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
	at java.util.HashMap.readObject(HashMap.java:1396)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1896)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
	at org.apache.catalina.session.StandardSession.doReadObject(StandardSession.java:1602)
	at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1067)
	at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:261)
	at org.apache.catalina.session.StandardManager.load(StandardManager.java:180)
	at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:470)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5175)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:697)
	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:579)
	at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1744)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	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)

je ne comprends pas trop ce qu'il se passe, je serialise mes javabeans ainsi que leurs classe mère (sur 2 niveaux)
Merci.

[tchize_]

Tu a sérialisé des javabeans, puis tu as modifié le code de classes.User, ce qui fait qu'il est impossible de désérializer. La sérialisation nécessite, en gros, que les classes ne changent pas entre la sérialisation et la désérialisation.

[stc074]

Tu a sérialisé des javabeans, puis tu as modifié le code de classes.User, ce qui fait qu'il est impossible de désérializer. La sérialisation nécessite, en gros, que les classes ne changent pas entre la sérialisation et la désérialisation.

Merci ça me rassure, j'ai en effet modifier User.java par contre je n'avais pas encore déployé mon appli.