Twiddle launch java.io.IOException: unknown protocol: resource
when info command is used to get the Log4j MBean jboss.system:service=Logging,type=Log4jService

To fix this problem add this code in the org.jboss.console.twiddle.Twiddle in the main class

String handlerPkgs = System.getProperty("java.protocol.handler.pkgs");
if (handlerPkgs != null)

{ handlerPkgs += "|org.jboss.net.protocol"; }

else

{ handlerPkgs = "org.jboss.net.protocol"; }

System.setProperty("java.protocol.handler.pkgs", handlerPkgs);