RFR: JDK-8288207: Enhance MalformedURLException in Uri.parseCompat

[Matthias Baesken]

On Mon, 13 Jun 2022 14:29:44 GMT, Jaikiran Pai <jpai at openjdk.org> wrote:

> > Hi Daniel, should we maybe better print something like "check for not allowed characters" in the exception ? Do you have an easy and cheap way in mind to the get the unsupported character (in this case "_") to add it to the output ? Would maybe be more helpful than the proposed host:port and better regarding security concerns.
> 
> Hello Matthias, the current error message is:
> 
> > java.net.MalformedURLException: unsupported authority: ad_jbs.ttt.net:389
> 
> Are you suggesting that the error message should include some additional wording which states why the authority isn't supported (in this case because of the presence of that `_` character)?

Yes , this is what I meant.  Ideally (and if it is not much overhead/easy to get) we show the 'bad'  character in the message.  Otherwise just some additional wording.

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PR: https://git.openjdk.org/jdk/pull/9126