public static URL urlForResource ( String location ) throws MalformedURLException , FileNotFoundException { if ( location == null ) { throw new NullPointerException ( "location is required" ) ; } URL url = null ; if ( ! location . matches ( SCHEME_PATTERN ) ) { url = Loader . getResourceBySelfClassLoader ( location ) ; } else if ( location . startsWith ( CLASSPATH_SCHEME ) ) { String path = location . substring ( CLASSPATH_SCHEME . length ( ) ) ; if ( path . startsWith ( "/" ) ) { path = path . substring ( 1 ) ; } if ( path . length ( ) == 0 ) { throw new MalformedURLException ( "path is required" ) ; } url = Loader . getResourceBySelfClassLoader ( path ) ; } else { url = new URL ( location ) ; } if ( url == null ) { throw new FileNotFoundException ( location ) ; } return url ; }
Converts a string describing the location of a resource into a URL object .