Hi Erdinc,
I do not think this is a GAE issue.
I think the problem is the following:
> @Inject
> SessionHandler sessionHandler;
Are you using Jersey's @Inject or Guice's @Inject in the above? the
stack trace indicates the former.
There is an ordering issue when Jersey;s @Inject is utilized. The fix
looks simple. Could you log an issue?
A workaround is to inject ResourceContext:
@Context ResourceContext rc;
an do:
SessionHandler sessionHandler = rc.get(SessionHandler.class);
Or uses Guice's @Inject if that is what you really intended.
Paul.
On Jan 22, 2010, at 6:58 PM, Erdinc Yilmazel wrote:
> Ok, I think I narrowed the problem and I am a bit closer to
> solution. I am using a class which extends
> com.sun.jersey.spi.container.servlet.ServletContainer as a servlet
> filter to make Guice integration possible, (Using modified code from
> jersey-guice package). In the same class I am also registering a
> ResourceFilterFactory and an InjectableProvider.
>
> I am doing this by the following code in the void
> configure(WebConfig wc, ResourceConfig rc, WebApplication wa) method:
>
> @Override
> protected void configure(WebConfig wc, ResourceConfig rc,
> WebApplication wa) {
> super.configure(wc, rc, wa);
> rc.getSingletons().add(new LoginResourceFilterFactory());
> rc.getSingletons().add(new SessionDataProvider());
> }
>
>
> This was working fine in previous versions of Jersey, but now It is
> causing a NullPointerException that is described in my previous
> email. When I don't override the method above, everything works fine
> including guice integration. The ResourceFilterFactory that is
> causing the problem is something like this:
>
>
> import com.sun.jersey.api.model.AbstractMethod;
> import com.sun.jersey.spi.container.ResourceFilter;
> import com.sun.jersey.spi.container.ResourceFilterFactory;
> import com.sun.jersey.spi.inject.Inject;
> import javax.ws.rs.ext.Provider;
> import java.util.ArrayList;
> import java.util.List;
>
> @Provider
> public class LoginResourceFilterFactory implements
> ResourceFilterFactory {
> @Inject
> SessionHandler sessionHandler;
>
> @Override
> public List<ResourceFilter> create(AbstractMethod am) {
> LoginRequired lr = am.getAnnotation(LoginRequired.class);
> if (lr == null) {
> lr = am.getResource().getAnnotation(LoginRequired.class);
> if (lr == null) {
> return null;
> }
> }
> final LoginResourceFilter filter =
> LoginResourceFilter.instance(sessionHandler, lr.value());
>
> return new ArrayList<ResourceFilter>() {{
> add(filter);
> }};
> }
> }
>
>
> Erdinc
>
>
> On Fri, Jan 22, 2010 at 3:52 PM, Erdinc Yilmazel
> <erdinc_at_yilmazel.com> wrote:
> Hi,
>
> I'm trying to use Jersey 1.1.5 Final along with the Google Guice
> integration. I am getting a NullPointerException on
> ResourceClass.java..
>
>
> WARNING: failed GuiceFilter
> java.lang.NullPointerException
> at
> com
> .sun
> .jersey
> .server.impl.model.ResourceClass.processOptions(ResourceClass.java:
> 374)
> at
> com
> .sun
> .jersey
> .server.impl.model.ResourceClass.processMethods(ResourceClass.java:
> 323)
> at
> com
> .sun
> .jersey.server.impl.model.ResourceClass.<init>(ResourceClass.java:133)
> at
> com
> .sun
> .jersey
> .server
> .impl
> .application
> .WebApplicationImpl.newResourceClass(WebApplicationImpl.java:554)
> at
> com
> .sun
> .jersey
> .server
> .impl
> .application
> .WebApplicationImpl.getResourceClass(WebApplicationImpl.java:459)
> at
> com
> .sun
> .jersey
> .server
> .impl
> .application
> .WebApplicationImpl.getResourceClass(WebApplicationImpl.java:481)
> at com.sun.jersey.server.impl.application.WebApplicationImpl
> $9.getInjectable(WebApplicationImpl.java:709)
> at com.sun.jersey.server.impl.application.WebApplicationImpl
> $9.getInjectable(WebApplicationImpl.java:705)
> at
> com
> .sun
> .jersey
> .core
> .spi
> .factory
> .InjectableProviderFactory
> .getInjectable(InjectableProviderFactory.java:202)
> at
> com
> .sun
> .jersey
> .core
> .spi
> .factory
> .InjectableProviderFactory
> .getInjectable(InjectableProviderFactory.java:216)
> at
> com
> .sun
> .jersey
> .core.spi.component.ComponentInjector.inject(ComponentInjector.java:
> 89)
> at
> com
> .sun
> .jersey
> .core
> .spi
> .component
> .ProviderFactory.injectOnProviderInstance(ProviderFactory.java:240)
> at
> com
> .sun
> .jersey
> .core
> .spi
> .component
> .ProviderFactory.injectOnProviderInstances(ProviderFactory.java:228)
> at
> com
> .sun
> .jersey
> .server
> .impl
> .application.WebApplicationImpl.initiate(WebApplicationImpl.java:907)
>
>
> The problem is at this method, where this.wadlFactory is null.
>
> private void processOptions(ResourceMethodMap methodMap,
> AbstractResource resource, PathPattern p) {
> List<ResourceMethod> l = methodMap.get("OPTIONS");
> if (l != null) {
> return;
> }
>
> ResourceMethod optionsMethod =
> this.wadlFactory.createWadlOptionsMethod(methodMap, resource, p);
> if (optionsMethod == null)
> optionsMethod = new ResourceHttpOptionsMethod(methodMap);
> methodMap.put(optionsMethod);
> }
>
> Any thoughts? I am currently trying to deploy my application locally
> using the Google Appengine Dev Server. Could it be something about
> appengine restrictions?
>
> Erdinc
>