How to read/access Play 2.5 Framework application.conf properties in java

[ibrahim olanrewaju]

i used dependency injection this is the errors am seeing,

 example : 

public class Hello(){ 

public Configuration conf; 

@inject 

public Hello(Configuration conf){

this.conf =conf;

 }

public void use(){

Logger.debug("configuration.getString = "+conf.getString("mongodb.db.url"));

}

}

This is the error am seeing bellow: Please help me out

ProvisionException: Unable to provision, see the following errors: 1) Error injecting constructor, java.lang.NullPointerException at services.CmsService.<init>(CmsService.java:15) while locating services.CmsService for parameter 0 at controllers.HomeController.<init>(HomeController.java:30) while locating controllers.HomeController for parameter 1 at router.Routes.<init>(Routes.scala:40) while locating router.Routes while locating play.api.inject.RoutesProvider while locating play.api.routing.Router for parameter 0 at play.api.http.JavaCompatibleHttpRequestHandler.<init>(HttpRequestHandler.scala:200) while locating play.api.http.JavaCompatibleHttpRequestHandler while locating play.api.http.HttpRequestHandler for parameter 4 at play.api.DefaultApplication.<init>(Application.scala:221) at play.api.DefaultApplication.class(Application.scala:221) while locating play.api.DefaultApplication while locating play.api.Application

[Greg Methvin]

It looks like the NPE is happening in CmsService, which you haven't shown here.

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Greg Methvin

Senior Software Engineer

Lightbend, Inc.

[Enrico Morelli]

I do that:

public class Document extends Controller {
    @Inject
    private Configuration configuration;


   String p = configuration.getString("ProceduraProtocolli");