static String [ ] splitToken ( String token ) throws JWTDecodeException { String [ ] parts = token . split ( "\\." ) ; if ( parts . length == 2 && token . endsWith ( "." ) ) { //Tokens with alg='none' have empty String as Signature. parts = new String [ ] { parts [ 0 ] , parts [ 1 ] , "" } ; } if ( parts . length != 3 ) { throw new JWTDecodeException ( String . format ( "The token was expected to have 3 parts, but got %s." , parts . length ) ) ; } return parts ; }
Splits the given token on the . chars into a String array with 3 parts .