question: public OMGraphicList readCachedGraphics ( URL url ) throws java . io . IOException { if ( Debug . debugging ( "areas" ) ) { Debug . output ( "Reading cached graphics" ) ; } OMGraphicList omgraphics = new OMGraphicList ( ) ; if ( url != null ) { omgraphics . readGraphics ( url ) ; } return omgraphics ; }
target:  Read a cache of OMGraphics