I finally got it! The issue was that I need to ad a container/wrapper tag around the child using the tagname specified in the @UiChild
so <aj:CustomParent> <aj:myChild> <aj:CustomChild ui:field="aChild"></aj:CustomChild> </aj:myChild> </aj:CustomParent> The CustomParent object has a method with annotation @UiChild(tagname="myChild") which is invoked with the <aj:CustomChild element This is somewhat counter to the 'normal' way, which I guess I can implement if I use a custom parser. However, as I noted in my initial question I was looking at other libraries to get an idea of how to do this and noted that GwtBootstrap3 does not seem to use any of the implementations mentioned here. If anyone knows how I would appreciate some pointers. Even better if the GwtBootstrap3 guys happen to read this. It would be more uniform if I didn't have to surround each child in a tag to invoke the add method for it <aj:CustomParent> <aj:myChild> <aj:CustomChild ui:field="child1"></aj:CustomChild> </aj:myChild> <aj:myChild> <aj:CustomChild ui:field="child2"></aj:CustomChild> </aj:myChild> <aj:myChild> <aj:CustomChild ui:field="child3"></aj:CustomChild> </aj:myChild> </aj:CustomParent> Thanks for your help! -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.