void observesApple(@Observes Pear apple)

    void observesPearPOM(@Observes ProcessObserverMethod<Pear, FirstFruitObserver> event) {

        // set observed type to Apple

        event.configureObserverMethod().observedType(Apple.class);

    }

java.lang.IllegalArgumentException: argument type mismatch

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:497)

	at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:96)

	at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:86)

	at org.jboss.weld.injection.MethodInvocationStrategy$SimpleMethodInvocationStrategy.invoke(MethodInvocationStrategy.java:129)

	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:344)

	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:322)

	at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:300)

	at org.jboss.weld.bootstrap.events.builder.ObserverMethodConfiguratorImpl.lambda$read$47(ObserverMethodConfiguratorImpl.java:146)

	at org.jboss.weld.bootstrap.events.builder.ObserverMethodBuilderImpl$NotificationCallback.notify(ObserverMethodBuilderImpl.java:170)

	at org.jboss.weld.bootstrap.events.builder.ObserverMethodBuilderImpl$ImmutableObserverMethod.notify(ObserverMethodBuilderImpl.java:142)

	at org.jboss.weld.util.Observers.notify(Observers.java:138)

	at org.jboss.weld.event.ObserverNotifier.notifySyncObservers(ObserverNotifier.java:300)

	at org.jboss.weld.event.ObserverNotifier.notify(ObserverNotifier.java:288)

	at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:165)

	at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:147)

	at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:623)

	at org.jboss.weld.util.ForwardingBeanManager.fireEvent(ForwardingBeanManager.java:101)