MacroImpl.delete() fails

[Matthew Stone]

I'm using MacroImpl.delete() and it's failing on me.  I've tried using both
delete methods:

delete(SlideToken token, java.lang.String targetUri)
delete(SlideToken token, java.lang.String targetUri, MacroParameters
parameters)

It keeps throwing an ObjectHasChildrenException.  I'm sure the
MacroParameters are both set to true.

The structure I'm attempting to delete is a group node.  Here's an exact
representation:

GroupNode
+-- GroupNode
 |    +-- LinkNode > SubjectNode(Folder in the Slide file system)
+-- GroupNode
    +-- LinkNode > SubjectNode(Folder in the Slide file system)
    +-- LinkNode > SubjectNode(Folder in the Slide file system)

or

GroupNode
+-- LinkNode > SubjectNode(Folder in the Slide file system)


Please advise.

Matt