Here's a problem. b7020. In case of any problem with spring config parsing (say, IDEA failed to resolve custom namespaces) the structure view still tries to be 'smart' and displays the spring structure. Of course, because there were unresolved refs, it just doesn't display anything - empty root 'beans' node and that's it.
At least add a switch to use either Spring or XML structure view, don't make us suffer of bugs :)