RFR: 8300172: java/net/httpclient/MappingResponseSubscriber.java failed with java.net.ConnectException

[Jaikiran Pai]

On Mon, 16 Jan 2023 18:08:29 GMT, Daniel Fuchs <dfuchs at openjdk.org> wrote:

> The MappingResponseSubscriber test has been observed failing on windows in our CI due to a ConnectException.
> I am suspecting that some kind of connection limit enforced by the system has been reached.
> We can see from the log that the TCP connection has failed, been retried, and failed again.
> Previous connections to the same server seem to have succeeded.
> 
> Modifying the test to wait after previous clients have been GC'ed before opening the next one could alleviate the situation.

test/jdk/java/net/httpclient/MappingResponseSubscriber.java line 149:

> 147:                 System.gc();
> 148:                 AssertionError error = TRACKER.check(tracker, 1500);
> 149:                 if (error != null) throw error;

Hello Daniel, in theory, this could potentially lose the any original failure/exception that the test in the try block might have raised. Perhaps we could catch and throw the original exception and add this additional failure as a suppressed exception to it?

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PR: https://git.openjdk.org/jdk/pull/12013