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ava.lang.NullPointerException: 	at ninja.caio.restaurantes.infra.RestaurantDao.save(RestaurantDao.java:28)	at ninja.caio.restaurantes.infra.RestaurantDao$Proxy$_$$_WeldClientProxy.save(Unknown Source)	at br.com.caelum.vraptor.controller.IndexController.index(IndexController.java:32)	at br.com.caelum.vraptor.controller.IndexController$Proxy$_$$_WeldClientProxy.index(Unknown Source)	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:498)	at net.vidageek.mirror.provider.java.PureJavaMethodReflectionProvider.invoke(PureJavaMethodReflectionProvider.java:38)	at net.vidageek.mirror.invoke.MethodHandlerByMethod.withArgs(MethodHandlerByMethod.java:54)	at br.com.caelum.vraptor.core.DefaultReflectionProvider.invoke(DefaultReflectionProvider.java:42)	at br.com.caelum.vraptor.core.DefaultReflectionProvider$Proxy$_$$_WeldClientProxy.invoke(Unknown Source)	at br.com.caelum.vraptor.observer.ExecuteMethod$1.call(ExecuteMethod.java:82)	at br.com.caelum.vraptor.observer.ExecuteMethod$1.call(ExecuteMethod.java:72)	at br.com.caelum.vraptor.core.Try.run(Try.java:18)	at br.com.caelum.vraptor.observer.ExecuteMethod.execute(ExecuteMethod.java:72)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)	at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)	at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)	at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:165)	at org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:119)	at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:112)	at org.jboss.weld.event.EventImpl.fire(EventImpl.java:83)	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:78)	at br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:98)	at br.com.caelum.vraptor.interceptor.FlashInterceptor$Proxy$_$$_WeldClientProxy.intercept(Unknown Source)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler$1.call(ToInstantiateInterceptorHandler.java:71)	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler$1.call(ToInstantiateInterceptorHandler.java:68)