UT005085 errors on EAP 7.1

Issue

• We are seeing errors like below on HTTP2 connections although responses seem good:

ERROR [io.undertow] (default task-2) UT005085: Connection io.undertow.server.protocol.http2.Http2ServerConnection@4899e14e for exchange HttpServerExchange{ GET /page request
{accept=[text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8], accept-language=[en-US,en;q=0.9,sv;q=0.8], accept-encoding=[gzip, deflate, br], :method=[GET], Referer=[https://localhost:8443/servlet-http2/], upgrade-insecure-requests=[1], Host=[localhost:8443]}
response {Last-Modified=[Mon, 01 Oct 2018 15:07:12 GMT], Content-Type=[image/jpeg], Content-Length=[6231], Accept-Ranges=[bytes], Date=[Tue, 02 Oct 2018 16:27:31 GMT], :status=[200]}} was not closed cleanly, forcibly closing connection