NPE with a simple Directory example

Jeff Walter Wed, 04 Apr 2007 08:46:21 -0700

Hey All,

I'm trying simply to access some files in a directory and am getting a NPE
in the ApplicationDispatcher.handle method.


Here's my example:

TestLauncher.java

import org.restlet.Component ;
import org.restlet.data.Protocol;

public class TestLauncher {

   public static void main(String[] args) {
       try {
           Component component = new Component();
           component.getServers ().add(Protocol.HTTP, 8181);
           component.getClients().add(Protocol.FILE);

           component.getDefaultHost().attach("", new TestApplication());

           component.start();
       }
       catch (Exception e) {
           e.printStackTrace();
       }
   }
}

TestApplication.java

import org.restlet.Application;
import org.restlet.Directory ;
import org.restlet.Restlet;
import org.restlet.Router;

public class TestApplication extends Application {

   @Override
   public Restlet createRoot() {
       Router rootRouter = new Router();

       Directory imagesDirectory = new Directory(getContext(), "
file:///C:/images/");
       rootRouter.attach("/images/", imagesDirectory);

       return rootRouter;
   }
}

And this is the error I get on every request to
http://localhost:8181/images/somefile.gif

java.lang.NullPointerException
   at com.noelios.restlet.application.ApplicationDispatcher.handle(
ApplicationDispatcher.java:81)
   at com.noelios.restlet.TemplateDispatcher.handle(TemplateDispatcher.java
:89)
   at org.restlet.Uniform.handle (Uniform.java:97)
   at org.restlet.Uniform.get(Uniform.java:74)
   at com.noelios.restlet.local.DirectoryResource.<init>(
DirectoryResource.java:142)
   at com.noelios.restlet.Engine.createDirectoryResource (Engine.java:253)
   at org.restlet.Directory.findTarget(Directory.java:145)
   at org.restlet.Finder.handle(Finder.java:268)
   at org.restlet.Filter.doHandle(Filter.java:105)
   at org.restlet.Filter.handle (Filter.java:134)
   at org.restlet.Router.handle(Router.java:441)
   at org.restlet.Filter.doHandle(Filter.java:105)
   at org.restlet.Filter.handle(Filter.java:134)
   at org.restlet.Filter.doHandle(Filter.java :105)
   at com.noelios.restlet.StatusFilter.doHandle(StatusFilter.java:87)
   at org.restlet.Filter.handle(Filter.java:134)
   at org.restlet.Filter.doHandle(Filter.java:105)
   at org.restlet.Filter.handle (Filter.java:134)
   at com.noelios.restlet.application.ApplicationHelper.handle(
ApplicationHelper.java:92)
   at org.restlet.Application.handle(Application.java:290)
   at org.restlet.Filter.doHandle(Filter.java :105)
   at org.restlet.Filter.handle(Filter.java:134)
   at org.restlet.Router.handle(Router.java:441)
   at org.restlet.Filter.doHandle(Filter.java:105)
   at org.restlet.Filter.handle(Filter.java:134)
   at org.restlet.Router.handle(Router.java:441)
   at org.restlet.Filter.doHandle(Filter.java:105)
   at com.noelios.restlet.StatusFilter.doHandle(StatusFilter.java:87)
   at org.restlet.Filter.handle(Filter.java :134)
   at org.restlet.Filter.doHandle(Filter.java:105)
   at org.restlet.Filter.handle(Filter.java:134)
   at com.noelios.restlet.component.ComponentHelper.handle(
ComponentHelper.java:115)
   at org.restlet.Component.handle (Component.java:228)
   at org.restlet.Server.handle(Server.java:266)
   at com.noelios.restlet.ServerHelper.handle(ServerHelper.java:99)
   at com.noelios.restlet.http.HttpServerHelper.handle(
HttpServerHelper.java :94)
   at com.noelios.restlet.ext.jetty.JettyServerHelper$WrappedServer.handle(
JettyServerHelper.java:232)
   at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java
:458)
   at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete (
HttpConnection.java:776)
   at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:500)
   at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209)
   at org.mortbay.jetty.HttpConnection.handle( HttpConnection.java:358)
   at org.mortbay.io.nio.SelectChannelEndPoint.run(
SelectChannelEndPoint.java:336)
   at org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:442)

I'm using Jetty and the latest code (downloaded yesterday) from
http://www.restlet.org/downloads/1.0/current.zip

Am I missing something here?

Thanks,
Jeff

NPE with a simple Directory example

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