[news.eclipse.modeling.gmf] extension point documentProviders

[peter_l@xxxxxx (Peter Lang)]

Hi everyone,

I'm trying to use the extension point
"org.eclipse.gmf.runtime.diagram.ui.resources.editor.documentProviders"
but I don't seem to get it to work.

I guess it's just some silly mistake I make...

Here's what I do in custom plugin.xml:
<extension 
point="org.eclipse.gmf.runtime.diagram.ui.resources.editor.documentProviders">
 <provider
      extensions=".xxx_diagram"
      class="org.xxx.CustomXxxDocumentProvider"
      id="org.xxx.CustomXxxDocumentProvider">
 </provider>
</extension>

The constructor of CustomXxxDocumentProvider does not get called when I 
open/create a diagram file of type xxx_diagram.

extensions is "." + my diagram filename extension, also tried with model 
filename extension

class org.xxx.CustomXxxDocumentProvider exists (plugin.xml validation 
displays a warning otherwise).
It extends my generated XxxDocumentProvider which extens 
AbstractDocumentProvider, implementing IDocumentProvider as requested.

Is there a way I can debug this, any log if there are problems with an 
extension point?

Thanks in advance,
Peter