Fix HTTP/2.0 receiver doesn't respect UndertowOptions.DECODE_URL

[neowu]

with UndertowOptions.DECODE_URL = false, it will always try to decode path if contains "%", and will result in NullPointerException (by io.undertow.util.URLUtils.decode)

due to io.undertow.server.protocol.http2.Http2ReceiveListener.encoding will be null
if UndertowOptions.DECODE_URL = false

[undertow-pull-request]

Can one of the admins verify this patch?

[stuartwdouglas]

This is ok to test

[undertow-pull-request]

Linux Build 2820 outcome was UNKNOWN using a merge of f435802
Summary: Canceled (Error while applying patch; cannot find commit 0e318de in the git://github.com/undertow-io/undertow.git repository, possible reason: refs/pull/678/merge branch was updated and the commit selected for the bui... Build time: 00:00:11

[undertow-pull-request]

Windows Build 2568 outcome was UNKNOWN using a merge of f435802
Summary: Canceled (Error while applying patch; cannot find commit 0e318de in the git://github.com/undertow-io/undertow.git repository, possible reason: refs/pull/678/merge branch was updated and the commit selected for the bui... Build time: 00:00:12

[neowu]

Hi,
The checks failed, is there anything needs to be done on my side?

[undertow-pull-request]

Windows Build 2570 outcome was FAILURE using a merge of f435802
Summary: Error while applying patch Build time: 00:00:01