You must find the "caused by" on the stack trace:
Caused by: java.lang.NullPointerException: null
at
com.rourevell.booking.client.ui.ControlPanelViewImpl.<init>(ControlPanelViewImpl.java:80)
at
com.rourevell.booking.client.service.impl.ClientFactoryImpl.getControlPanelView(ClientFactoryImpl.java:37)
at
com.rourevell.booking.client.activity.ControlPanelActivity.start(ControlPanelActivity.java:21)
...
It seems that you tried to acess a variable without checking if it's null
and got this error. Did you initialize the variable?
Alisson Prestes
www.google.com/profiles/javalisson
On Tue, May 24, 2011 at 5:36 AM, Jordi Planadecursach
<planad...@gmail.com>wrote:
> Hello guys,
>
> I have an exception in the following code using the MVP pattern. I'm
> just iniciaiting myself to the GWT world and I would need some help.
>
> Call:
>
> public class LoginActivity extends AbstractActivity implements
> LoginView.Presenter {
> private ClientFactory clientFactory;
> [...]
> public void goToControlPanel() {
> clientFactory.getPlaceController().goTo(new
> ControlPanelPlace("controlPanelPlace"));
> }
>
> Stack trace:
>
> 10:26:01.019 [ERROR] [rourevell_booking] Uncaught exception escaped
> com.google.gwt.event.shared.UmbrellaException: One or more exceptions
> caught, see full set in UmbrellaException#getCauses
> at
> com.google.gwt.event.shared.EventBus.castFireEvent(EventBus.java:70)
> at
> com.google.gwt.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:
> 57)
> at
> com.google.gwt.place.shared.PlaceController.goTo(PlaceController.java:
> 136)
> at
>
> com.rourevell.booking.client.activity.LoginActivity.goToControlPanel(LoginActivity.java:
> 29)
> at com.rourevell.booking.client.ui.LoginViewImpl
> $1$1.onSuccess(LoginViewImpl.java:61)
> at com.rourevell.booking.client.ui.LoginViewImpl
> $1$1.onSuccess(LoginViewImpl.java:1)
> at
>
> com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:
> 232)
> 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.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
> 39)
> 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.GeneratedMethodAccessor20.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:619)
> Caused by: com.google.gwt.event.shared.UmbrellaException: One or more
> exceptions caught, see full set in UmbrellaException#getCauses
> at
>
> com.google.gwt.activity.shared.ActivityManager.onPlaceChange(ActivityManager.java:
> 173)
> at
>
> com.google.gwt.place.shared.PlaceChangeEvent.dispatch(PlaceChangeEvent.java:
> 70)
> at
>
> com.google.gwt.place.shared.PlaceChangeEvent.dispatch(PlaceChangeEvent.java:
> 1)
> at com.google.gwt.event.shared.GwtEvent.dispatch(GwtEvent.java:1)
> at
>
> com.google.web.bindery.event.shared.SimpleEventBus.doFire(SimpleEventBus.java:
> 193)
> at
>
> com.google.web.bindery.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:
> 88)
> at
> com.google.gwt.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:
> 52)
> at
> com.google.gwt.event.shared.EventBus.castFireEvent(EventBus.java:68)
> at
> com.google.gwt.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:
> 57)
> at
> com.google.gwt.place.shared.PlaceController.goTo(PlaceController.java:
> 136)
> at
>
> com.rourevell.booking.client.activity.LoginActivity.goToControlPanel(LoginActivity.java:
> 29)
> at com.rourevell.booking.client.ui.LoginViewImpl
> $1$1.onSuccess(LoginViewImpl.java:61)
> at com.rourevell.booking.client.ui.LoginViewImpl
> $1$1.onSuccess(LoginViewImpl.java:1)
> at
>
> com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:
> 232)
> 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.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
> 39)
> 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.GeneratedMethodAccessor20.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:619)
> Caused by: java.lang.NullPointerException: null
> at
>
> com.rourevell.booking.client.ui.ControlPanelViewImpl.<init>(ControlPanelViewImpl.java:
> 80)
> at
>
> com.rourevell.booking.client.service.impl.ClientFactoryImpl.getControlPanelView(ClientFactoryImpl.java:
> 37)
> at
>
> com.rourevell.booking.client.activity.ControlPanelActivity.start(ControlPanelActivity.java:
> 21)
> at
>
> com.google.gwt.activity.shared.ActivityManager.onPlaceChange(ActivityManager.java:
> 158)
> at
>
> com.google.gwt.place.shared.PlaceChangeEvent.dispatch(PlaceChangeEvent.java:
> 70)
> at
>
> com.google.gwt.place.shared.PlaceChangeEvent.dispatch(PlaceChangeEvent.java:
> 1)
> at com.google.gwt.event.shared.GwtEvent.dispatch(GwtEvent.java:1)
> at
>
> com.google.web.bindery.event.shared.SimpleEventBus.doFire(SimpleEventBus.java:
> 193)
> at
>
> com.google.web.bindery.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:
> 88)
> at
> com.google.gwt.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:
> 52)
> at
> com.google.gwt.event.shared.EventBus.castFireEvent(EventBus.java:68)
> at
> com.google.gwt.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:
> 57)
> at
> com.google.gwt.place.shared.PlaceController.goTo(PlaceController.java:
> 136)
> at
>
> com.rourevell.booking.client.activity.LoginActivity.goToControlPanel(LoginActivity.java:
> 29)
> at com.rourevell.booking.client.ui.LoginViewImpl
> $1$1.onSuccess(LoginViewImpl.java:61)
> at com.rourevell.booking.client.ui.LoginViewImpl
> $1$1.onSuccess(LoginViewImpl.java:1)
> at
>
> com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:
> 232)
> 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.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
> 39)
> 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.GeneratedMethodAccessor20.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:619)
>
> Thanks to give me some tips in how to solve the issue.
>
> Cheers,
> Jordi.
>
> --
> You received this message because you are subscribed to the Google Groups
> "Google Web Toolkit" group.
> To post to this group, send email to google-web-toolkit@googlegroups.com.
> To unsubscribe from this group, send email to
> google-web-toolkit+unsubscr...@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/google-web-toolkit?hl=en.
>
>
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To post to this group, send email to google-web-toolkit@googlegroups.com.
To unsubscribe from this group, send email to
google-web-toolkit+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
