RFR 6968542: keytool -importcert cannot deal with duplicate certs

[Xuelei Fan]

Maybe better to throw an exception so that the caller know that the
reply is not valid.  Tolerate problems may become a problem in the future.

If you want to tolerate the duplicate cert in the chain, please add a
comment about the use of hash set.  The purpose of the use of hash set
is not instinctive to the code reader.

Xuelei

On 6/16/2016 4:53 PM, Wang Weijun wrote:
> Please review the code change at
> 
>    http://cr.openjdk.java.net/~weijun/6968542/webrev.01/
> 
> Thanks
> Max
>