jsf 2 - Custom PhaseListener called twice in jsf 2 -

i working phaselistener in jsf 2.0. it's methods getting called twice every time.

@override public void beforephase(phaseevent arg0) {     system.out.println("start phase "+arg0.getphaseid()+" here value "+ ++i +" object "+this);   } 

and output this

start phase restore_view 1 here value 1 object com.phaselistener.myphaselistener@cc8c29 start phase restore_view 1 here value 1 object com.phaselistener.myphaselistener@106054a 

each time being called 2 different objects.

please let me know, why so??

in case helps googling problem.

in case, moved glassfish 3 tomcat 7 , noticed custom phase listener being registered twice causing duplicated log entries.

in web.xml had configurelistener required glassfish 3 triggers second registration on tomcat 7:

<listener>     <listener-class>com.sun.faces.config.configurelistener</listener-class> </listener> 

i removed block , resolved issue.