final FooExtension extension = new FooExtension();

        // Create a deployment, that we can use to mirror the structure of one Extension inside a BDA, and one outside

            public BeanDeploymentArchive loadBeanDeploymentArchive(Class<?> beanClass) {

                // Return bda2 if it is Observer2. Stick anything else which this test isn't about in bda1

                if (beanClass.equals(FooExtension.class)) {

                    return bda1;

        // bda2 is accessible from bda1, but isn't added to it's accessibility graph by default. This similar to an archive which doesn't contain a beans.xml but does contain an extension

        final BeanDeploymentArchive bda2 = new BeanDeploymentArchiveImpl("2", Observer2.class);

        // Create a deployment, that we can use to mirror the structure of one Extension inside a BDA, and one outside

            public BeanDeploymentArchive loadBeanDeploymentArchive(Class<?> beanClass) {

                // Return bda2 if it is Observer2. Stick anything else which this test isn't about in bda1

                if (beanClass.equals(Observer2.class)) {

                    // If Observer2 is requested, then we need to add bda2 to the accessibility graph of bda1

        // bda2 is accessible from bda1, but isn't added to it's accessibility graph by default. This similar to an archive which doesn't contain a beans.xml but does contain an extension

        final BeanDeploymentArchive bda2 = new BeanDeploymentArchiveImpl("2", CountingObserver2.class);

        // Create a deployment, that we can use to mirror the structure of one Extension inside a BDA, and one outside

            public BeanDeploymentArchive loadBeanDeploymentArchive(Class<?> beanClass) {

                // Return bda2 if it is Observer2. Stick anything else which this test isn't about in bda1

                if (beanClass.equals(CountingObserver2.class) || beanClass.equals(Bar.class)) {

                    // If Observer2 is requested, then we need to add bda2 to the accessibility graph of bda1

        war.getBeanDeploymentArchives().add(ejbJar);

        // Create a deployment, any other classes are put into the ejb-jar (not

        // relevant to test)

            public BeanDeploymentArchive loadBeanDeploymentArchive(Class<?> beanClass) {

                return ejbJar;

            }

        war.getBeanDeploymentArchives().add(ejbJar);

        // Create a deployment, any other classes are put into the ejb-jar (not

        // relevant to test)

            public BeanDeploymentArchive loadBeanDeploymentArchive(Class<?> beanClass) {

                return ejbJar;

            }

        war.getBeanDeploymentArchives().add(ejbJar);

        // Create a deployment, any other classes are put into the ejb-jar (not

        // relevant to test)

            public BeanDeploymentArchive loadBeanDeploymentArchive(Class<?> beanClass) {

                return ejbJar;

            }

                return ImmutableSet.<EjbDescriptor<?>>of(fooDescriptor, barDescriptor, bazDescriptor);

            }

        };

            @Override

            public BeanDeploymentArchive loadBeanDeploymentArchive(Class<?> beanClass) {

                return bda;

            }

            @Override

            }

        };

        // Create a deployment, that we can use to mirror the structure of one Extension inside a BDA, and one outside

            @Override

            public BeanDeploymentArchive loadBeanDeploymentArchive(Class<?> beanClass) {

                return bda;

            }