2 files changed, 5 insertions, 0 deletions
diff --git a/lib/rexml/document.rb b/lib/rexml/document.rb
index 2f9e659772..9f94d9707a 100644
--- a/lib/rexml/document.rb
+++ b/lib/rexml/document.rb
@@ -240,6 +240,10 @@ module REXML
       end
     end
 
+    def document
+      self
+    end
+
     private
     def build( source )
       Parsers::TreeParser.new( source, self ).parse
diff --git a/lib/rexml/entity.rb b/lib/rexml/entity.rb
index dc3f666cad..d10b051f18 100644
--- a/lib/rexml/entity.rb
+++ b/lib/rexml/entity.rb
@@ -157,6 +157,7 @@ module REXML
 
   # This is a set of entity constants -- the ones defined in the XML
   # specification.  These are +gt+, +lt+, +amp+, +quot+ and +apos+.
+  # CAUTION: these entities does not have parent and document
   module EntityConst
     # +>+
     GT = Entity.new( 'gt', '>' )