Empty category array throws NPE

ClassificationWebService.setCategories() should be able to clear/reset all categories for a given node if an empty array is passed in

The change in org/alfresco/repo/webservice/classification/ClassificationWebService.java would be from this:

ArrayList<NodeRef> categoryNodeRefs = new
ArrayList<NodeRef>(category.getCategories().length);

To:

Reference[] categories = category.getCategories();
ArrayList<NodeRef> categoryNodeRefs = null;
if(categories == null)

{ categoryNodeRefs = new ArrayList<NodeRef>(0); }

else
{
categoryNodeRefs = new ArrayList<NodeRef>(categories.length);
for (Reference categoryReference : categories)

{ categoryNodeRefs.add(Utils.convertToNodeRef( categoryReference, ClassificationWebService.this.nodeService, ClassificationWebService.this.searchService, ClassificationWebService.this.namespaceService)); }

}