Code review request, 8020842 IDN do not throw IAE when hostname ends with a trailing dot

[Weijun Wang]

I am not sure if IDN.java is the correct place to change. At least I've 
seen trailing dots in DNS entries. So maybe it's not so illegal.

--Max

On 8/6/13 7:44 PM, Xuelei Fan wrote:
> Hi,
>
> Please review the bug fix to strict the illegal input checking in IDN.
>
> webrev: http://cr.openjdk.java.net./~xuelei/8020842/webrev.00/
>
> Here is two test cases, which are expected to get IAE.
>
> Case 1:
> String host = IDN.toASCII(".", IDN.USE_STD3_ASCII_RULES);
> Exception in thread "main" java.lang.StringIndexOutOfBoundsException:
> String index out of range: 0
>          at java.lang.StringBuffer.charAt(StringBuffer.java:204)
>          at java.net.IDN.toASCIIInternal(IDN.java:279)
>          at java.net.IDN.toASCII(IDN.java:118)
>
> Case 2:
> String host = IDN.toASCII("com.", IDN.USE_STD3_ASCII_RULES);
>
> Thanks,
> Xuelei
>