無法序列化具有類屬性的會話

Question

當我部署項目時，此錯誤隨機發生。我不知道從哪裏來。

這是我得到的錯誤..

無法序列化會話cusfamily屬性用於會話b4426b412a9a1c69b8442902a0c7 java.io.NotSerializableException：classs.CustomerFamilyObject

java.io.NotSerializableException: classs.CustomerFamilyObject 
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1183) 
at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1377) 
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1173) 
at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:162) 
at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1706) 
at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:481) 
at java.util.Vector.writeObject(Vector.java:1073) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:606) 
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988) 
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495) 
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) 
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) 
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347) 
at org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:2196) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:606) 
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988) 
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495) 
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) 
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) 
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347) 
at org.apache.catalina.session.StandardManager.writeSessions(StandardManager.java:762) 
at com.sun.enterprise.web.WebModule.saveSessions(WebModule.java:1730) 
at com.sun.enterprise.web.WebContainer.unloadWebModule(WebContainer.java:2438) 
at com.sun.enterprise.web.WebContainer.unloadWebModule(WebContainer.java:2394) 
at com.sun.enterprise.web.WebApplication.stop(WebApplication.java:190) 
at org.glassfish.internal.data.EngineRef.stop(EngineRef.java:161) 
at org.glassfish.internal.data.ModuleInfo.stop(ModuleInfo.java:324) 
at org.glassfish.internal.data.ApplicationInfo.stop(ApplicationInfo.java:380) 
at com.sun.enterprise.v3.server.ApplicationLifecycle.unload(ApplicationLifecycle.java:1059) 
at com.sun.enterprise.v3.server.ApplicationLifecycle.undeploy(ApplicationLifecycle.java:1099) 
at org.glassfish.deployment.admin.UndeployCommand.execute(UndeployCommand.java:412) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:539) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:535) 
at java.security.AccessController.doPrivileged(Native Method) 
at javax.security.auth.Subject.doAs(Subject.java:356) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:534) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:565) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:557) 
at java.security.AccessController.doPrivileged(Native Method) 
at javax.security.auth.Subject.doAs(Subject.java:356) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:556) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1464) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:109) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1846) 
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1722) 
at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:534) 
at com.sun.enterprise.v3.admin.AdminAdapter.onMissingResource(AdminAdapter.java:224) 
at org.glassfish.grizzly.http.server.StaticHttpHandlerBase.service(StaticHttpHandlerBase.java:189) 
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459) 
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167) 
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201) 
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175) 
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235) 
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) 
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284) 
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201) 
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133) 
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112) 
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) 
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561) 
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) 
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) 
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56) 
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) 
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565) 
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545) 
at java.lang.Thread.run(Thread.java:745) 

Answer 1

儘量使CustomerFamilyObject類序列化，

public class CustomerFamilyObject implements Serializable{ 
    private static final long serialVersionUID = 1L; 
// add your code ... 
}