Performing local JMX connection via VisualVM

Question

I have a Wildfly 26 server that I am running with the following VM args:

-Dlogback.configurationFile=/opt/wildfly/standalone/configuration/logback.xml  
-Dcom.sun.management.jmxremote 
-Dcom.sun.management.jmxremote.authenticate=false 
-Dcom.sun.management.jmxremote.ssl=false 
-Dcom.sun.management.jmxremote.port=1990

My standalone.xml has the properties:

<subsystem xmlns="urn:jboss:domain:jmx:1.3">
    <expose-resolved-model/>
    <expose-expression-model/>
    <audit-log/>
    <sensitivity/>
    <remoting-connector use-management-endpoint="false"/>
</subsystem>
.
.
.
<socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}">
.
.
.
   <socket-binding name="jmx-connector" port="1990"/>
.
.
.
</socket-binding-group>

The server comes up fine, but I can't seem to connect to it via VisualVM. This guide seems to suggest adding service:jmx:rmi:///jndi/rmi://:9999/jmxrmi in the JMX URL field (1990 instead of 9999 in my case), but this seems to not be working. In the screenshot below you can see all of the connections that I have tried, with several different ports. All of them are grayed-out on the menu on the left, with the connection unable to be made. You can see that I have tried several connection URLs, none of which have worked.

What should I be adding to the Connection field?

Is there perhaps a misconfiguration in the XML? Or in the VM args?