question: public void delete ( String name ) throws IOException { if ( name . equalsIgnoreCase ( POINTS ) ) { distributionPoints = Collections . < DistributionPoint > emptyList ( ) ; } else { throw new IOException ( "Attribute name [" + name + "] not recognized by " + "CertAttrSet:" + extensionName + '.' ) ; } encodeThis ( ) ; }
target:  Delete the attribute value.