On 21/07/2023 10:32, Andrey Turbanov wrote:
Hello.
Recently I was struggling with troubleshooting the Socket connection
to a server via DNS address.
There were multiple IPs assigned to the same DNS address and I wanted
to know exactly which IP java is trying to connect.
Unfortunately default ConnectException doesn't show anything useful in
the exception message
java.net.ConnectException: Connection refused
Even if I enable enhanced exception info
'-Djdk.includeInExceptions=hostInfo' I still only get the DNS address
in the exception message.
java.net.ConnectException: Connection timed out: connect:
myprod-app.global.mycompany.ro:5001
Is it possible to enhance the exception message to show used IP too?
Perhaps guarged with another JVM option.
I think it would be very useful for troubleshooting.
Which JDK release is still? I thought it was changed in JDK-8299827 to
include the IP address.
-Alan
