question: private String normalizeUrl ( String url ) { if ( ! normalize ) { return url ; } String normalized = null ; if ( urlNormalizers != null ) { try { normalized = urlNormalizers . normalize ( url , URLNormalizers . SCOPE_DEFAULT ) ; normalized = normalized . trim ( ) ; } catch ( Exception e ) { LOG . warn ( "Skipping " + url + ":" + e ) ; normalized = null ; } } return normalized ; }
target:  Normalizes and trims extra whitespace from the given url.