What is the cause of this Umbrella Exception

Question

The application is loading in the browser, however it is throwing exceptions which says

11:59:49.770 [ERROR] [loginform] 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.HandlerManager.fireEvent(HandlerManager.java:129) at com.google.gwt.user.client.ui.Widget.fireEvent(Widget.java:129) at com.google.gwt.event.dom.client.DomEvent.fireNativeEvent(DomEvent.java:116) at com.google.gwt.user.client.ui.Widget.onBrowserEvent(Widget.java:177) at com.google.gwt.user.client.DOM.dispatchEventImpl(DOM.java:1351)

What is the cause and how to resolve this?

Solution 1

You are missing the interesting part. Create an uncaught exception-handler, like in this question. update:

As you can see here: GWT/JAVA Uncaught exception escaped

The Stacktrace should be longer. There is a root-cause atatched to the Umbrella-Exception.

Solution 2

Try to resolve errors happened in your application. I've already answered the same question GWT client umbrellaexception get full error message in java