So InetAddress.isReachable() will return false if the underline API
IcmpSendEcho return with Status== IP_SUCESS and RoundTripTime > timeout.
Vyom
On Wednesday 21 September 2016 10:39 PM, Rob McKenna wrote:
Unfortunately the behaviour described is undocumented and was found the hard
way. This part of the code is a necessity though.
-Rob
On 21/09/16 09:48, Vyom Tewari wrote:
Hi Rob,
Do you really think this extra check is required ?
if (pEchoReply->Status == IP_SUCCESS
+ && (int)pEchoReply->RoundTripTime <= timeout) I did not found any
doc(MSDN) which explains this. I think in case of IP_SUCCESS "RoundTripTime"
is always less than timeout. I think similar changes is required in
Inet6Address.c as well ? Thanks, Vyom
On Wednesday 21 September 2016 08:46 PM, Rob McKenna wrote:
Hi folks,
I'd like to fix a bug caused by an incorrect assumption. The IcmpSendEcho*
calls can actually return a similar set of errors regardless of whether the
call itself failed or succeeded. This change checks that both the call and the
ping were successful. In addition to that it takes a number of common failure
causes into account before deciding to throw an exception.
http://cr.openjdk.java.net/~robm/8159410/webrev.01/
-Rob