[EAP] probes don't work if ADMIN_USERNAME set to 'admin,-./=@\'

10:24:25,734 ERROR [stderr] (management task-2) java.lang.IllegalArgumentException: UT000025: Unexpected token 'ManagementRealm", nonce' within header.
10:24:25,734 ERROR [stderr] (management task-2) 	at io.undertow.util.HeaderTokenParser.parseHeader(HeaderTokenParser.java:71)
10:24:25,734 ERROR [stderr] (management task-2) 	at io.undertow.security.impl.DigestAuthorizationToken.parseHeader(DigestAuthorizationToken.java:79)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.security.impl.DigestAuthenticationMechanism.authenticate(DigestAuthenticationMechanism.java:156)
10:24:25,735 ERROR [stderr] (management task-2) 	at org.jboss.as.domain.http.server.security.AuthenticationMechanismWrapper.authenticate(AuthenticationMechanismWrapper.java:52)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.transition(SecurityContextImpl.java:244)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.transition(SecurityContextImpl.java:262)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.access$100(SecurityContextImpl.java:230)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.security.impl.SecurityContextImpl.attemptAuthentication(SecurityContextImpl.java:124)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.security.impl.SecurityContextImpl.authTransition(SecurityContextImpl.java:99)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.security.impl.SecurityContextImpl.authenticate(SecurityContextImpl.java:92)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.security.handlers.AuthenticationCallHandler.handleRequest(AuthenticationCallHandler.java:50)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:246)
10:24:25,735 ERROR [stderr] (management task-2) 	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:802)
10:24:25,735 ERROR [stderr] (management task-2) 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
10:24:25,736 ERROR [stderr] (management task-2) 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
10:24:25,736 ERROR [stderr] (management task-2) 	at java.lang.Thread.run(Thread.java:748)