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Re: [jersey-dev] Cannot @Inject into ExceptionMapper
General questions are fine to be asked here, but there is only about 80 people subscribed to this mailing list. Asking on SO can get more attention, so it is more likely to get answered sooner. 

-- Jan

On 06.04.2020 21:12, Martynas Jusevičius wrote:

Thanks Jan.

I'll create issues for what I think are bugs.

Where is the place to ask general questions? StackOverflow? Because I
have quite a few of them, now that I'm upgrading from 1.x.

On Mon, Apr 6, 2020 at 5:15 PM Jan Supol <jan.supol@xxxxxxxxxx> wrote:

Hi,

This mailing list's primary purpose is not for solving bugs, rather it
should be used for a discussion and announcements.

Feel free to file us an issue on our bug tracker
https://github.com/eclipse-ee4j/jersey/issues and provide a reproducer,
best in a form of JerseyTest or a standalone github project.

I tried to reproduce the issue, but no success. What comes on my mind
right now is that you try to inject out of the Request scope, or I have
seen a similar issue when multiple classloaders were involved.

Thanks,

Jan

On 04.04.2020 13:09, Martynas Jusevičius wrote:

TemplateCallProvider is a Factory:

@Provider
public class TemplateCallProvider implements Factory<TemplateCall>

On Sat, Apr 4, 2020 at 1:05 PM Martynas Jusevičius
<martynas@xxxxxxxxxxxxx> wrote:

Hi,

I'm attempting to inject some RequestScoped objects into an ExceptionMapper:

      public class NotFoundExceptionMapper extends ExceptionMapperBase
implements ExceptionMapper<NotFoundException>
      {

          @Inject TemplateCall templateCall;
      ...

In my ResourceConfig I have

      register(new AbstractBinder()
      {
          @Override
          protected void configure()
          {
              bindFactory(TemplateCallProvider.class).to(TemplateCall.class).
              proxy(true).proxyForSameScope(false).in(RequestScoped.class);
          }
      });
      ...
      register(new NotFoundExceptionMapper());
      // register(NotFoundExceptionMapper.class); // also tried this, same effect

However I get an error when NotFoundException should be mapped:

04-Apr-2020 10:57:22.213 SEVERE [main]
org.apache.catalina.core.ApplicationContext.log Servlet.init() for
servlet [com.atomgraph.server.Application] threw exception
MultiException stack 1 of 2
          java.lang.RuntimeException: java.lang.InstantiationException:
com.atomgraph.processor.util.TemplateCall_$$_jvstb48_0
                  at
org.jvnet.hk2.internal.ProxyUtilities$4.run(ProxyUtilities.java:157)
                  at java.security.AccessController.doPrivileged(Native Method)
                  at
org.jvnet.hk2.internal.ProxyUtilities.secureCreate(ProxyUtilities.java:128)
                  at
org.jvnet.hk2.internal.ProxyUtilities.generateProxy(ProxyUtilities.java:194)
                  at
org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2074)
                  at
org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:666)
                  at
org.jvnet.hk2.internal.ThreeThirtyResolver.resolve(ThreeThirtyResolver.java:54)
                  at
org.jvnet.hk2.internal.Utilities.justInject(Utilities.java:988)
                  at
org.jvnet.hk2.internal.ServiceLocatorImpl.inject(ServiceLocatorImpl.java:998)
                  at
org.jvnet.hk2.internal.ServiceLocatorImpl.inject(ServiceLocatorImpl.java:976)
                  at
org.glassfish.jersey.inject.hk2.AbstractHk2InjectionManager.inject(AbstractHk2InjectionManager.java:202)
                  at
org.glassfish.jersey.inject.hk2.ImmediateHk2InjectionManager.inject(ImmediateHk2InjectionManager.java:30)
      ...
MultiException stack 2 of 2
          java.lang.IllegalArgumentException: While attempting to create
a Proxy for com.atomgraph.processor.util.TemplateCall in scope
org.glassfish.jersey.process.internal.RequestScoped an error occured
while creating the proxy
                  at
org.jvnet.hk2.internal.ProxyUtilities.generateProxy(ProxyUtilities.java:201)
                  at
org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2074)
                  at
org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:666)
                  at
org.jvnet.hk2.internal.ThreeThirtyResolver.resolve(ThreeThirtyResolver.java:54)
                  at
org.jvnet.hk2.internal.Utilities.justInject(Utilities.java:988)
                  at
org.jvnet.hk2.internal.ServiceLocatorImpl.inject(ServiceLocatorImpl.java:998)
                  at
org.jvnet.hk2.internal.ServiceLocatorImpl.inject(ServiceLocatorImpl.java:976)
                  at
org.glassfish.jersey.inject.hk2.AbstractHk2InjectionManager.inject(AbstractHk2InjectionManager.java:202)
                  at
org.glassfish.jersey.inject.hk2.ImmediateHk2InjectionManager.inject(ImmediateHk2InjectionManager.java:30)
      ...

Looking at similar problems online, my guess is that it has to do with
a RequestScoped object being injected into Singleton. However I
haven't been able to find a solution yet.

Thanks.


Martynas

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