How to debug wildfly fail when running standalone.sh? - wildfly

Question

I cannot run my cors header in wildfly.
Here is my standalone.xml
<subsystem xmlns="urn:jboss:domain:undertow:3.0">
<buffer-cache name="default"/>
<server name="default-server">
<http-listener name="default" socket-binding="http" redirect-socket="https" enable-http2="true"/>
<https-listener name="https" socket-binding="https" security-realm="ApplicationRealm" enable-http2="true"/>
<host name="default-host" alias="localhost">
<location name="/" handler="welcome-content"/>
<access-log/>
<filter-ref name="server-header"/>
<filter-ref name="x-powered-by-header"/>
<filter-ref name="gzipFilter" predicate="exists('%{o,Content-Type}') and regex(pattern='(?:application/javascript|text/css|text/html|text/xml|application/json)(;.*)?', value=%{o,Content-Type}, full-match=true)"/>
<filter-ref name="Access-Control-Allow-Origin"/>
<filter-ref name="Access-Control-Allow-Methods"/>
<filter-ref name="Access-Control-Allow-Headers"/>
<filter-ref name="Access-Control-Allow-Credentials"/>
</host>
</server>
<servlet-container name="default">
<jsp-config development="true" tag-pooling="false"/>
<websockets/>
</servlet-container>
<handlers>
<file name="welcome-content" path="${jboss.home.dir}/welcome-content"/>
</handlers>
<filters>
<response-header name="server-header" header-name="Server" header-value="WildFly/10"/>
<response-header name="x-powered-by-header" header-name="X-Powered-By" header-value="Undertow/1"/>
<gzip name="gzipFilter"/>
<response-header name="Access-Control-Allow-Origin" header-name="Access-Control-Allow-Origin" header-value="*"/>
<response-header name="Access-Control-Allow-Methods" header-name="Access-Control-Allow-Methods" header-value="GET, POST, OPTIONS, PUT"/>
<response-header name="Access-Control-Allow-Headers" header-name="Access-Control-Allow-Headers" header-value="accept, authorization, content-type, x-requested-with"/>
<response-header name="Access-Control-Allow-Credentials" header-name="Access-Control-Allow-Credentials" header-value="true"/>
</filters>
</subsystem>
And the result of ./standalone.sh is:
18:44:34,491 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) "WFLYCTL0193: Failed executing subsystem undertow boot operations"
18:44:34,493 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("parallel-subsystem-boot") failed - address: ([]) - failure description: "\"WFLYCTL0193: Failed executing subsystem undertow boot operations\""
18:44:34,499 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details.
Anyone can advise please...

Answer 1

You could try to increase the debug level for JBoss classes (eg "org.jboss.as" and/or ""org.jboss.as.config").
In your "standalone.xml" file:
<subsystem xmlns="urn:jboss:domain:logging:5.0">
...
<logger category="org.jboss.as.config">
<level name="DEBUG"/>
</logger>
and then restart your server