錯誤序列化對象類 - 運行檢票和GAE

Question

運行檢票與GAE的問題時是：

[INFO] SEVERE: Error serializing object class com.myapp.app.TemplatePage [object=[Page class = com.myapp.app.TemplatePage, id = 10, render count = 1]] 
[INFO] java.security.AccessControlException: access denied ("java.io.SerializablePermission" "enableSubclassImplementation") 
[INFO] at java.security.AccessControlContext.checkPermission(AccessControlContext.java:457) 
[INFO] at java.security.AccessController.checkPermission(AccessController.java:884) 
[INFO] at java.lang.SecurityManager.checkPermission(SecurityManager.java:549) 
[INFO] at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:429) 
[INFO] at java.io.ObjectOutputStream.<init>(ObjectOutputStream.java:275) 
[INFO] at org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.<init>(JavaSerializer.java:250) 
[INFO] at org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.<init>(JavaSerializer.java:243) 
[INFO] at org.apache.wicket.serialize.java.JavaSerializer.newObjectOutputStream(JavaSerializer.java:176) 
[INFO] at org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:76) 
[INFO] at org.apache.wicket.pageStore.DefaultPageStore.serializePage(DefaultPageStore.java:376) 
[INFO] at org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:150) 
[INFO] at org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:412) 
[INFO] at org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:181) 
[INFO] at org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:98) 
[INFO] at org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:73) 
[INFO] at org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:258) 
[INFO] at org.apache.wicket.Application$2.onDetach(Application.java:1665) 
[INFO] at org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:105) 
[INFO] at org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:101) 
[INFO] at org.apache.wicket.util.listener.ListenerCollection$1.notify(ListenerCollection.java:120) 
[INFO] at org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:144) 
[INFO] at org.apache.wicket.util.listener.ListenerCollection.reversedNotifyIgnoringExceptions(ListenerCollection.java:113) 
[INFO] at org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:100) 
[INFO] at org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:640) 
[INFO] at org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:589) 
[INFO] at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:293) 
[INFO] at org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259) 
[INFO] at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201) 
[INFO] at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
[INFO] at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
[INFO] at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:127) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
[INFO] at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
[INFO] at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
[INFO] at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
[INFO] at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
[INFO] at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectRequest(DevAppServerModulesFilter.java:366) 
[INFO] at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectModuleRequest(DevAppServerModulesFilter.java:349) 
[INFO] at com.google.appengine.tools.development.DevAppServerModulesFilter.doFilter(DevAppServerModulesFilter.java:116) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
[INFO] at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
[INFO] at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
[INFO] at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
[INFO] at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
[INFO] at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
[INFO] at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:98) 
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
[INFO] at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:491) 
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
[INFO] at org.mortbay.jetty.Server.handle(Server.java:326) 
[INFO] at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
[INFO] at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) 
[INFO] at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) 
[INFO] at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) 
[INFO] at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
[INFO] at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) 
[INFO] at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) 

Answer 1

這是我補充說，修復了這個問題的代碼：

// disable ModificationWatcher 
    getResourceSettings().setResourcePollFrequency(null); 

    // use plain JDK Object(Input|Output)Stream 
    ISerializer serializer = new GaeObjectSerializer(getApplicationKey()); 
    getFrameworkSettings().setSerializer(serializer); 

    // save older version of pages in the HttpSession 
    final IDataStoreEvictionStrategy evictionStrategy = new PageNumberEvictionStrategy(10); 
    setPageManagerProvider(new GaePageManagerProvider(this, evictionStrategy)); 

    // disable file cleaning because it starts a new thread 
    getResourceSettings().setFileCleaner(null);