    # 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