ResponseHandler in Forwarder called twice per request

[mcweba]

In the Forwarder class, the handler holding the HttpClientResponseis called twice for every request.

This is visible when a log statement is added and with enabled micrometer metrics it is also visible in the gateleen_forwarded_seconds_count and gateleen_forwarded_seconds_sum entries

In this example, 1 request with a delay of 2 seconds was made. The sum is twice the 2 seconds and also the count is double of the effectively executed requests.

gateleen_forwarded_total{metricName="forwarder-test-rule",type="local",} 1.0
gateleen_forwarded_seconds_count{metricName="forwarder-test-rule",type="local",} 2.0
gateleen_forwarded_seconds_sum{metricName="forwarder-test-rule",type="local",} 4.021027708

Calling the response handler twice could also have other impacts which where not yet revealed.

[mcweba]

Released in v2.1.14