<分区>
我的 catalina.out 中不断出现 IO 异常，如下面的堆栈跟踪所示。值得一提的是
- 只有在生产环境中运行服务器时才会发生这种情况。通过 MyEclipse 在本地运行不会出现此错误
- 类名实际上是 Header.java，我不知道为什么堆栈跟踪显示它是 Header$1
Header.java 类实现了 Serializable 并扩展了 GenericForwardComposer
WARNING: Cannot serialize session attribute org.zkoss.zk.ui.event.eventQueues for session 801CDDA59E689504D5CAA6513392A9E2 SEVERE: IOException while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: mvc.publi.template.lbnew.Header$1 java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: mvc.publi.template.lbnew.Header$1 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1352) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at java.util.LinkedList.readObject(LinkedList.java:1136) at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at java.util.LinkedList.readObject(LinkedList.java:1136) at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989) at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:499) at org.zkoss.zk.ui.impl.DesktopImpl.readObject(DesktopImpl.java:1064) 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:601) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at java.util.HashMap.readObject(HashMap.java:1154) at sun.reflect.GeneratedMethodAccessor36.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at java.util.HashMap.readObject(HashMap.java:1155) at sun.reflect.GeneratedMethodAccessor36.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1600) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1073) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:284) at org.apache.catalina.session.StandardManager.load(StandardManager.java:204) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:470) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5241) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:812) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:787) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:607) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:633) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:558) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:468) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1329) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:389) at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:334) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1041) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:774) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1033) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:291) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148) at org.apache.catalina.startup.Catalina.start(Catalina.java:621) 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:601) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:456) Caused by: java.io.NotSerializableException: mvc.publi.template.lbnew.Header$1 at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1180) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346) at java.util.LinkedList.writeObject(LinkedList.java:1118) at sun.reflect.GeneratedMethodAccessor976.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:975) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346) at java.util.LinkedList.writeObject(LinkedList.java:1118) at sun.reflect.GeneratedMethodAccessor976.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:975) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528) at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:438) at org.zkoss.zk.ui.impl.DesktopImpl.writeObject(DesktopImpl.java:1027) 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:601) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:975) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346) at java.util.HashMap.writeObject(HashMap.java:1099) at sun.reflect.GeneratedMethodAccessor973.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:975) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1528) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346) at java.util.HashMap.writeObject(HashMap.java:1100) at sun.reflect.GeneratedMethodAccessor973.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:975) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346) at org.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1676) at org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:1090) at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:411) at org.apache.catalina.session.StandardManager.unload(StandardManager.java:353) at org.apache.catalina.session.StandardManager.stopInternal(StandardManager.java:497) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:230) at org.apache.catalina.core.StandardContext$4.run(StandardContext.java:5465) at java.lang.Thread.run(Thread.java:722)
Header.java类是
public class Header extends GenericForwardComposer<Component> implements Serializable {
private static final long serialVersionUID = 7964938307380973455L;
private transient EventQueue<Event> queueApplication;
private transient EventQueue<Event> queueSession;
//other variable declarations
public void doAfterCompose(Component comp) throws Exception {
super.doAfterCompose(comp);
EventListener<Event> applicationListener = new EventListener<Event>() {
public void onEvent(Event evt) throws Exception {
//Some event handling here
}
}
queueApplication = EventQueues.lookup("groupApplication",EventQueues.APPLICATION,true);
queueApplication.subscribe(applicationListener);
EventListener<Event> applicationListener2 = new EventListener<Event>() {
public void onEvent(Event evt) {
//Some event handling here
}
}
queueSession = EventQueues.lookup("groupSession", EventQueues.SESSION, true);
queueSession.subscribe(applicationListener2);
//some code
for (int i=0; i< supportedLangs.length; i++) {
final Languages lang = supportedLangs[i];
Image flag = new Image(Main.ICON_SERVER+"/public/template/" + skin.getFolder() + "/gfx/flags/" + supportedLangs[i].getImageName());
flag.setId(supportedLangs[i].getLowercase());
//create and register event listener
EventListener<Event> actionListener = new SerializableEventListener<Event>() {
private static final long serialVersionUID = 1L;
public void onEvent(Event event) throws Exception {
setLanguage(lang.getLowercase());
}
};
flag.addEventListener(Events.ON_CLICK, actionListener);
flags.appendChild(flag);
flags.appendChild(new Label(" "));
}
//some more code
}
//Some other code
}