does order matter in gwt descriptor?

If you use maven to perform operations on your project you may have used:

mvn vaadin:update-widgetset

It examines your classpath and updates your gwt descriptor file (e.g. MyWidgetSet.gwt.xml) with entries for the Add-ons it discovers. However, not sure if it guarantees the proper order of those entries.

For example:

If you have played with the awesome
QuickTickets demo
you may recall a file called “DashboardWidgetSet.gwt.xml”. It comes with the proper entries in the proper order for the add-ons. But if you strip them out and run the vaadin:update-widgetset goal you may get some errors at runtime.

Bad Quicktickets:

<inherits name="com.vaadin.addon.timeline.gwt.TimelineWidgetSet" />
<inherits name="com.vaadin.addon.charts.Widgetset" />


Widgetset 'com.vaadin.demo.dashboard.DashboardWidgetSet' does not contain implementation for com.vaadin.addon.timeline.Timeline. Check its component connector's @Connect mapping, widgetsets GWT module description file and re-compile your widgetset. In case you have downloaded a vaadin add-on package, you might want to refer to... The above “Message” was showing up in each panel on the ‘Dashboard’ of the QuickTickets demo. After re-ordering [see below]

  • and recompiling the widgetset all was fixed.

The odd part is that I was unable to reproduce the behavior.

It is unclear why.

Good Quicktickets:

<inherits name="com.vaadin.addon.charts.Widgetset" />
<inherits name="com.vaadin.addon.timeline.gwt.TimelineWidgetSet" />