Unable to add component

I have added the following lines to ejabberd.yml

  - 
    port: 8888
    module: ejabberd_service
    access: all
    shaper_rule: fast
    ip: "127.0.0.1"
    hosts:
      "mycomponent.DESKTOP":
        password: "secret"

the following is my java code using whack library

        ExternalComponentManager mgr = new ExternalComponentManager("127.0.0.1", 8888,false);
        mgr.setServerName("DESKTOP");
        mgr.setSecretKey("mycomponent", "secret");

I get the following exception

org.xmpp.component.ComponentException: not-authorized
	at org.jivesoftware.whack.ExternalComponent.connect(ExternalComponent.java:219)

and following is appended to log

2017-04-29 19:10:44.855 [info] <0.625.0>@ejabberd_listener:accept:333 (#Port<0.21604>)
 Accepted connection 127.0.0.1:58398 -> 127.0.0.1:8888
2017-04-29 19:10:44.856 [info] <0.675.0>@ejabberd_service:init:90
 ({socket_state,gen_tcp,#Port<0.21604>,<0.674.0>}) External service connected
2017-04-29 19:10:44.905 [info] <0.675.0>@ejabberd_service:terminate:267
 terminated: normal

What am i doing wrong ?