Jetty 9.3 and 9.4 fail to start as soon as I apply the keycloak adapter to my jetty_base - jetty

Question

I'm following the basic steps to add security to my app with a keycloak jetty adapter (9.3 and 9.4 tested) but I'm getting an error. The issue is the keycloak adapter because my jetty server starts with no problem from another jetty_base (One without the keycloak adapter)
Tomas#DESIGN MINGW64 ${JETTY_HOME}/jetty_base java -jar ../start.jar --create-startd --add-to-start=keycloak
INFO: server initialised (transitively) in {jetty.base}\start.ini
INFO: keycloak initialised in ${jetty.base}\start.ini
INFO: Base directory was modified
Tomas#DESIGN MINGW64 ${JETTY_HOME}/jetty_base
$ java -jar …/start.jar
java.nio.file.InvalidPathException: Illegal char <:> at index 6: ~ http:\www.apache.org\licenses
at sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:182)
at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:153)
at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:77)
at sun.nio.fs.WindowsPath.parse(WindowsPath.java:94)
at sun.nio.fs.WindowsFileSystem.getPath(WindowsFileSystem.java:255)
at java.io.File.toPath(File.java:2234)
at org.eclipse.jetty.start.PathMatchers.asPath(PathMatchers.java:73)
at org.eclipse.jetty.start.PathMatchers.getSearchRoot(PathMatchers.java:191)
at org.eclipse.jetty.start.PathMatchers.isAbsolute(PathMatchers.java:221)
at org.eclipse.jetty.start.BaseHome.getPaths(BaseHome.java:356)
at org.eclipse.jetty.start.StartArgs.expandModules(StartArgs.java:485)
at org.eclipse.jetty.start.Main.processCommandLine(Main.java:333)
at org.eclipse.jetty.start.Main.main(Main.java:75)
Usage: java -jar start.jar [options] [properties] [configs]
java -jar start.jar --help # for more information

Answer 1

The keycloak.mod you have has typos and/or bad syntax.
It appears to be searching for a file called http:\www.apache.org\licenses, which obviously wouldn't be valid on Windows FileSystem.

Answer 2

This is the keycloak.mod that comes with the Jetty adapter in the keycloak website. Look at the comments using # and the ones using XML comment notation <!--
I just removed the Xml comment section and Jetty comes up with no issues. Thank you #Joakim Erdfelt
#
# Keycloak Jetty Adapter
#
[depend]
server
security
[lib]
<!--
~ Copyright 2016 Red Hat, Inc. and/or its affiliates
~ and other contributors as indicated by the #author tags.
~
~ Licensed under the Apache License, Version 2.0 (the "License");
~ you may not use this file except in compliance with the License.
~ You may obtain a copy of the License at
~
~ http://www.apache.org/licenses/LICENSE-2.0
~
~ Unless required by applicable law or agreed to in writing, software
~ distributed under the License is distributed on an "AS IS" BASIS,
~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
~ See the License for the specific language governing permissions and
~ limitations under the License.
-->
lib/keycloak/*.jar