Layer.xml without names

I have a little question about the layer.xml file of my Netbeans Platform application. This is how is shown:

Any object is named "AlwaysEnabledAction[null]" and it makes some confusion. On web i have seen some examples when the Actions use the correctly name, so... why my layer's preview isn't like the others?

This is an example of how I define an Action

`@ActionID(
    category = "Project",
    id = "it.bpe.bpebricks.ui.EncloseNewAction")
@ActionRegistration(
    lazy = true,
    iconBase = "images/menu/source/enclose.png",
    displayName = "#CTL_EncloseNewAction")
@ActionReferences({
    @ActionReference(
        path = "Menu/Source",
        position = 1),
    @ActionReference(
        path = "Toolbars/Source",
        position = 1),
    @ActionReference(
        path = "Shortcuts",
        name = "D-E")
})
@Messages("CTL_EncloseNewAction=Enclose")`  

Thanks