On 16/07/2020 11:53, Baesken, Matthias wrote:
Hello, recent change

https://hg.openjdk.java.net/jdk/jdk/rev/9e70cd55ae08

8230613: Better ASCII conversions

Adjusted one place  in  file Punycode.java   to throw  the declared 
ParseException in

     public static StringBuffer encode(StringBuffer src, boolean[] caseFlags) 
throws ParseException{  ...  }

I think we should  better adjust  the  remaining  throw   in  the same method  
as well to a ParseException .  See  small patch below.
Should I open a JBS  issue  for this ?

I wonder if it is possible to create a test case that uses IDN.toASCII and trickles this case in Punnycode. In passing, it might be that the IAE specified by toASCII needs clarification for the additional cases where it will reject input.

-Alan.

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