private boolean load ( URL url ) throws ClassNotFoundException , IOException , ZoneRulesException { boolean updated = false ; if ( loadedUrls . add ( url . toExternalForm ( ) ) ) { InputStream in = null ; try { in = url . openStream ( ) ; updated |= load ( in ) ; } finally { if ( in != null ) { in . close ( ) ; } } } return updated ; }
Loads the rules from a URL often in a jar file .