jsf 2 - why url not change when handling error page jsf -


i config error page in web.xml following:

 <error-page>         <exception-type>java.lang.throwable</exception-type>         <location>/faces/error.xhtml</location>             </error-page>

in index.xhtml have 1 input field:

 <h:form>         <h:inputtext value="#{errorbean.text}"  />         <h:commandbutton value="submit" action="index.xhtml"/>     </h:form>

and managedbean checked user input. if user don't type anything, bean throw exception following:

@managedbean(name = "errorbean") @sessionscoped public class errorbean {      private string text;     private exception e;      /**      * creates new instance of errorbean      */     public errorbean() {     }      public string gettext() {         return text;     }      public void settext(string text) throws exception{         if (text.equalsignorecase("")) {           throw new exception();         } else {             this.text = text;         }     }    }

my question is: why exception throw, url in browser :

 http://localhost:8888/errornavigator/faces/index.xhtml,

i think is: 

http://localhost:8888/errornavigator/faces/error.xhtml

how config url in browser is: 

http://localhost:8888/errornavigator/faces/error.xhtml

please me!!!!


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