# File lib/wordnet/synset.rb, line 765
                def pointers
                        @mutex.synchronize( Sync::SH ) {
                                @mutex.synchronize( Sync::EX ) {
                                        @pointers = @pointerlist.split(SubDelimRe).collect {|pstr|
                                                Pointer::parse( pstr )
                                        }
                                } if @pointers.empty?
                                @pointers
                        }
                end