javatomcatvaadintomcat7

Exception loading sessions from persistent storage java.io.InvalidClassException: com.vaadin.server.AbstractClientConnector; local class incompatible:

I have deployed the same named Vaadin application from another branch of the code to the same Apache Tomcat on Linux An when the tomcat was starting, I was getting the error message like that with no app starting:

SEVERE: Exception loading sessions from persistent storage
java.io.InvalidClassException: com.vaadin.server.AbstractClientConnector; local class incompatible: stream classdesc serialVersionUID = 4820326152100553455, local class serialVersionUID = 2157417212878694211
at java.base/java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:560)
    at java.base/java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:2020)
    at java.base/java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1870)
    at java.base/java.io.ObjectInputStream.readClass(ObjectInputStream.java:1833)
    at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1658)
    at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:489)
    at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:447)
    at java.base/java.util.HashMap.readObject(HashMap.java:1464)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at java.base/java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1046)
    at java.base/java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2357)
    at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2228)
    at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1687)
    at java.base/java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2496)
    at java.base/java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2390)
    at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2228)
    at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1687)
    at java.base/java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2496)
    at java.base/java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:625)
    at com.vaadin.server.VaadinSession.readObject(VaadinSession.java:1470)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at java.base/java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1046)
    at java.base/java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2357)
    at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2228)
    at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1687)
    at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:489)
    at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:447)
    at org.apache.catalina.session.StandardSession.doReadObject(StandardSession.java:1533)
    at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1003)
    at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:210)
    at org.apache.catalina.session.StandardManager.load(StandardManager.java:156)
    at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:346)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4963)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:683)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:658)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:662)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1023)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1910)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:118)
    at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:824)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:474)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1617)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:318)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
    at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
    at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:893)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:795)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1328)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1318)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:866)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:249)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:428)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:923)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:772)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:347)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:478)

28-Sep-2023 00:42:33.825 SEVERE [main] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors

what and where should be cleaned up from the serialization data?

Solution

  • what and where should be cleaned up from the serialization data?

    You can disable the Tomcat session serialization on shutdown by adding

    <Manager pathname="" />

    In context.xml file under <Context> section. You application is not fully serializable hence you get the exception. That is perfectly normal. In most cases you do not need this setting.