MyTest.java

package org.jboss.forge.addon.ui.input;

import javax.inject.Inject;

import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.forge.arquillian.AddonDependencies;
import org.jboss.forge.arquillian.archive.AddonArchive;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(Arquillian.class)
public class MyTest
{
   @Deployment
   @AddonDependencies
   public static AddonArchive getDeployment()
   {
      return ShrinkWrap.create(AddonArchive.class).addClasses(TargetPackage.class, TargetPackageProducer.class)
               .addBeansXML();
   }

   @Inject
   private TargetPackage targetPackage;

   @Test
   public void test()
   {
      Assert.assertNotNull(targetPackage);
      Assert.assertEquals("targetPackage", targetPackage.getName());
   }

}

TargetPackage.java

package org.jboss.forge.addon.ui.input;

public interface TargetPackage extends UIInput<String>
{

}

TargetPackageProducer.java

package org.jboss.forge.addon.ui.input;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;

import javax.enterprise.inject.Produces;

public class TargetPackageProducer
{
  // We could @Inject UIInput<String> input in here
  
   @Produces
   public TargetPackage createTargetPackage(InputComponentFactory factory)
   {
      final UIInput<String> input = factory.createInput("targetPackage", String.class);
      return (TargetPackage) Proxy.newProxyInstance(getClass().getClassLoader(), new Class[] { TargetPackage.class },
               new InvocationHandler()
               {
                  @Override
                  public Object invoke(Object proxy, Method method, Object[] args) throws Throwable
                  {
                     return method.invoke(input, args);
                  }
               });
   }

}

a @typed(TargetPackage.class) is missing in the @produces method