On Mon, Feb 20, 2012 at 4:08 PM, Martin Grigorov <[email protected]> wrote: > This is a known limitation in GAE. > > https://github.com/wicketstuff/core/blob/master/jdk-1.6-parent/gae-initializer-parent/gae-initializer/src/main/java/org/wicketstuff/gae/GaeObjectSerializer.java > > And there is a ticket about this in GAE issues tracker since few years > now. I cannot find it at the moment.
http://code.google.com/p/googleappengine/issues/detail?id=2500 > > On Mon, Feb 20, 2012 at 4:00 PM, Ian Marshall <[email protected]> > wrote: >> The web application default serialiser >> org.apache.wicket.serialize.java.JavaSerializer has been amended in Wicket >> 1.5.4. When running an application in Google App Engine for Java (GAE/J), >> these changes cause GAE/J to throw the exception >> >> java.security.AccessControlException: access denied >> (java.io.SerializablePermission enableSubclassImplementation) >> >> during web page serialisation, since GAE/J does not allow the changes made. >> >> As a work-around, I have developed a class (called "GaeSerialiser") which >> implements ISerializer and uses default Java serialisation and >> deserialisation behaviour. I set my application's serialiser to an instance >> of this class instead of the default. This prevents the above exception >> being raised. >> >> If anyone wants any further details (or code for my new class, although it >> is simple) then please let me know. >> >> Ian Marshall >> >> >> My environment >> -------------- >> Wicket: 1.5.4 >> GAE/J SDK: 1.6.2.1 >> Java SDK: 1.6.0_29 >> >> Stack trace >> ----------- >> 18-Feb-2012 13:45:08 org.apache.wicket.serialize.java.JavaSerializer >> serialize >> SEVERE: Error serializing object class [...].PageHome [object=[Page class = >> [...].PageHome, id = 0, render count = 1]] >> java.security.AccessControlException: access denied >> (java.io.SerializablePermission enableSubclassImplementation) >> at java.security.AccessControlContext.checkPermission(Unknown >> Source) >> at java.security.AccessController.checkPermission(Unknown Source) >> at java.lang.SecurityManager.checkPermission(Unknown Source) >> at >> com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:252) >> at java.io.ObjectOutputStream.<init>(Unknown Source) >> at >> org.apache.wicket.serialize.java.JavaSerializer$CheckerObjectOutputStream.<init>(JavaSerializer.java:241) >> at >> org.apache.wicket.serialize.java.JavaSerializer.newObjectOutputStream(JavaSerializer.java:174) >> at >> org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:75) >> at >> org.apache.wicket.pageStore.DefaultPageStore.serializePage(DefaultPageStore.java:368) >> at >> org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:146) >> at >> org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:383) >> at >> org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:171) >> at >> org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:94) >> at >> org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:68) >> at >> org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:281) >> at org.apache.wicket.Application$2.onDetach(Application.java:1598) >> at >> org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:99) >> at >> org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:97) >> at >> org.apache.wicket.util.listener.ListenerCollection$1.notify(ListenerCollection.java:119) >> at >> org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:143) >> at >> org.apache.wicket.util.listener.ListenerCollection.reversedNotifyIgnoringExceptions(ListenerCollection.java:113) >> at >> org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:95) >> at >> org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:600) >> at >> org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:539) >> at >> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:287) >> at >> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162) >> at >> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:218) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:35) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:60) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java:97) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) >> at >> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >> at >> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) >> at >> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) >> at >> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) >> at >> com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:78) >> at >> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> at >> com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:363) >> at >> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> at org.mortbay.jetty.Server.handle(Server.java:326) >> at >> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) >> at >> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) >> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) >> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) >> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) >> at >> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) >> at >> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) >> >> 18-Feb-2012 13:45:08 org.apache.wicket.pageStore.DefaultPageStore >> serializePage >> WARNING: Page [Page class = [...].PageHome, id = 0, render count = 1] cannot >> be serialized. See previous logs for possible reasons. >> >> -- >> View this message in context: >> http://apache-wicket.1842946.n4.nabble.com/JavaSerializer-in-1-5-4-causes-exceptions-with-GAE-tp4404222p4404222.html >> Sent from the Users forum mailing list archive at Nabble.com. >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> > > > > -- > Martin Grigorov > jWeekend > Training, Consulting, Development > http://jWeekend.com -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
