Re: Random SerializationException
Update: I still don't know why the SerializationException was appearing each time on a different class, but in the end it turned out that a leaf-level class was responsible. Problem solved. On Sep 25, 10:32 pm, Maverick alberto.si...@gmail.com wrote: Thanks for your reply; I'll try to investigate more. What is disorienting me is that the type, which is not said to be serializable, also changes on different calls. Could you please tell me something more about your experience and possible checks to do? That would help greately, because I finished the ideas... Thanks On 25 Set, 21:28, Dennis Haupt d.haup...@googlemail.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 you don't send the same data the second time. my experience says that this can have a thousand reasons which are not even hinted at by the error message. something in your class makes the gwt compiler think that it cannot be serialized or the gwt compiler assumes the class is never serialized (it's generally confused by generics) Am 25.09.2011 20:57, schrieb Maverick: Hi all I'm experiencing a problem that seems pretty absurd: I have a complex GWT app, which spans over several projects; from a while ago (not sure when it started exactly) the app is loaded successfully and a data structure is sent over RPC, but, if I reload the page, the *same* RPC call fails with this exception: com.google.gwt.user.client.rpc.StatusCodeException: 500 The call failed on the server; see server log for details at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceiv ed(RequestCallbackAdapter.java: 209) at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java: 287) at com.google.gwt.http.client.RequestBuilder $1.onReadyStateChange(RequestBuilder.java:395) at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java: 103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java: 71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.jav a: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingFo rReturn(BrowserChannelServer.java: 326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChann elServer.java: 207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java: 132) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java: 561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java: 269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.j ava: 91) at com.google.gwt.core.client.impl.Impl.apply(Impl.java) at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214) at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp l.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java: 103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java: 71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.jav a: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChanne lServer.java: 281) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChan nelServer.java: 531) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java : 352) at java.lang.Thread.run(Thread.java:680) And in the exception message: com.google.gwt.user.client.rpc.SerializationException: Type 'com.conceptle.istar.shared.ConceptualModelStatus' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. For security purposes, this type will not be serialized.: instance = com.conceptle.istar.shared.ConceptualModelStatus@5afecc75 at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali ze(ServerSerializationStreamWriter.java: 615) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.write Object(AbstractSerializationStreamWriter.java: 126) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter $ValueWriter$8.write(ServerSerializationStreamWriter.java:153) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali zeValue(ServerSerializationStreamWriter.java: 535) at
Random SerializationException
Hi all I'm experiencing a problem that seems pretty absurd: I have a complex GWT app, which spans over several projects; from a while ago (not sure when it started exactly) the app is loaded successfully and a data structure is sent over RPC, but, if I reload the page, the *same* RPC call fails with this exception: com.google.gwt.user.client.rpc.StatusCodeException: 500 The call failed on the server; see server log for details at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java: 209) at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java: 287) at com.google.gwt.http.client.RequestBuilder $1.onReadyStateChange(RequestBuilder.java:395) at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java: 103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java: 71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java: 326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java: 207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java: 132) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java: 561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java: 269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java: 91) at com.google.gwt.core.client.impl.Impl.apply(Impl.java) at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214) at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java: 103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java: 71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java: 281) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java: 531) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java: 352) at java.lang.Thread.run(Thread.java:680) And in the exception message: com.google.gwt.user.client.rpc.SerializationException: Type 'com.conceptle.istar.shared.ConceptualModelStatus' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. For security purposes, this type will not be serialized.: instance = com.conceptle.istar.shared.ConceptualModelStatus@5afecc75 at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java: 615) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java: 126) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter $ValueWriter$8.write(ServerSerializationStreamWriter.java:153) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java: 535) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeClass(ServerSerializationStreamWriter.java: 705) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl(ServerSerializationStreamWriter.java: 744) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java: 617) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java: 126) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter $ValueWriter$8.write(ServerSerializationStreamWriter.java:153) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java: 535) at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:616) at com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess(RPC.java: 474) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java: 571) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java: 208) at
Re: Random SerializationException
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 you don't send the same data the second time. my experience says that this can have a thousand reasons which are not even hinted at by the error message. something in your class makes the gwt compiler think that it cannot be serialized or the gwt compiler assumes the class is never serialized (it's generally confused by generics) Am 25.09.2011 20:57, schrieb Maverick: Hi all I'm experiencing a problem that seems pretty absurd: I have a complex GWT app, which spans over several projects; from a while ago (not sure when it started exactly) the app is loaded successfully and a data structure is sent over RPC, but, if I reload the page, the *same* RPC call fails with this exception: com.google.gwt.user.client.rpc.StatusCodeException: 500 The call failed on the server; see server log for details at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java: 209) at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java: 287) at com.google.gwt.http.client.RequestBuilder $1.onReadyStateChange(RequestBuilder.java:395) at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java: 103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java: 71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java: 326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java: 207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java: 132) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java: 561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java: 269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java: 91) at com.google.gwt.core.client.impl.Impl.apply(Impl.java) at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214) at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java: 103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java: 71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java: 281) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java: 531) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java: 352) at java.lang.Thread.run(Thread.java:680) And in the exception message: com.google.gwt.user.client.rpc.SerializationException: Type 'com.conceptle.istar.shared.ConceptualModelStatus' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. For security purposes, this type will not be serialized.: instance = com.conceptle.istar.shared.ConceptualModelStatus@5afecc75 at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java: 615) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java: 126) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter $ValueWriter$8.write(ServerSerializationStreamWriter.java:153) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java: 535) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeClass(ServerSerializationStreamWriter.java: 705) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl(ServerSerializationStreamWriter.java: 744) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java: 617) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java: 126) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter $ValueWriter$8.write(ServerSerializationStreamWriter.java:153) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java: 535) at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:616) at
Re: Random SerializationException
Thanks for your reply; I'll try to investigate more. What is disorienting me is that the type, which is not said to be serializable, also changes on different calls. Could you please tell me something more about your experience and possible checks to do? That would help greately, because I finished the ideas... Thanks On 25 Set, 21:28, Dennis Haupt d.haup...@googlemail.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 you don't send the same data the second time. my experience says that this can have a thousand reasons which are not even hinted at by the error message. something in your class makes the gwt compiler think that it cannot be serialized or the gwt compiler assumes the class is never serialized (it's generally confused by generics) Am 25.09.2011 20:57, schrieb Maverick: Hi all I'm experiencing a problem that seems pretty absurd: I have a complex GWT app, which spans over several projects; from a while ago (not sure when it started exactly) the app is loaded successfully and a data structure is sent over RPC, but, if I reload the page, the *same* RPC call fails with this exception: com.google.gwt.user.client.rpc.StatusCodeException: 500 The call failed on the server; see server log for details at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java: 209) at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java: 287) at com.google.gwt.http.client.RequestBuilder $1.onReadyStateChange(RequestBuilder.java:395) at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java: 103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java: 71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java: 326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java: 207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java: 132) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java: 561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java: 269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java: 91) at com.google.gwt.core.client.impl.Impl.apply(Impl.java) at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214) at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java: 103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java: 71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java: 281) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java: 531) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java: 352) at java.lang.Thread.run(Thread.java:680) And in the exception message: com.google.gwt.user.client.rpc.SerializationException: Type 'com.conceptle.istar.shared.ConceptualModelStatus' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. For security purposes, this type will not be serialized.: instance = com.conceptle.istar.shared.ConceptualModelStatus@5afecc75 at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java: 615) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java: 126) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter $ValueWriter$8.write(ServerSerializationStreamWriter.java:153) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java: 535) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeClass(ServerSerializationStreamWriter.java: 705) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl(ServerSerializationStreamWriter.java: 744) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java: 617) at