DATAREST-606 - Polishing.

Moved the accessibility tweak to the EventHandlerMethod's constructor so that the modification only occurs at detection time. Polished unit test.

Original pull request: #187.

spring-data-rest-core/src/main/java/org/springframework/data/rest/core/event/AnnotatedEventHandlerInvoker.java

@@ -89,7 +89,6 @@ public class AnnotatedEventHandlerInvoker implements ApplicationListener<Reposit
 				LOG.debug("Invoking {} handler for {}.", event.getClass().getSimpleName(), event.getSource());
 			}
 
-			ReflectionUtils.makeAccessible(handlerMethod.method);
 			ReflectionUtils.invokeMethod(handlerMethod.method, handlerMethod.handler, parameters.toArray());
 		}
 	}
@@ -109,7 +108,7 @@ public class AnnotatedEventHandlerInvoker implements ApplicationListener<Reposit
 	 */
 	@Override
 	public Object postProcessAfterInitialization(final Object bean, String beanName) throws BeansException {
-		
+
 		Class<?> beanType = ClassUtils.getUserClass(bean);
 		RepositoryEventHandler typeAnno = AnnotationUtils.findAnnotation(beanType, RepositoryEventHandler.class);
 
@@ -182,10 +181,12 @@ public class AnnotatedEventHandlerInvoker implements ApplicationListener<Reposit
 		final Object handler;
 
 		private EventHandlerMethod(Class<?> targetType, Object handler, Method method) {
-			
+
 			this.targetType = targetType;
 			this.method = method;
 			this.handler = handler;
+
+			ReflectionUtils.makeAccessible(this.method);
 		}
 
 		/*

spring-data-rest-core/src/test/java/org/springframework/data/rest/core/event/AnnotatedEventHandlerInvokerUnitTests.java

@@ -31,6 +31,7 @@ import org.springframework.util.MultiValueMap;
  * Unit tests for {@link AnnotatedEventHandlerInvoker}.
  *
  * @author Oliver Gierke
+ * @author Fabian Trampusch
  */
 public class AnnotatedEventHandlerInvokerUnitTests {
 
@@ -58,15 +59,16 @@ public class AnnotatedEventHandlerInvokerUnitTests {
 	 * @see DATAREST-606
 	 */
 	@Test
-	public void canInvokePrivateEventHandlerMethods() {
+	public void invokesPrivateEventHandlerMethods() {
+
 		SampleWithPrivateHandler sampleHandler = new SampleWithPrivateHandler();
+
 		AnnotatedEventHandlerInvoker invoker = new AnnotatedEventHandlerInvoker();
 		invoker.postProcessAfterInitialization(sampleHandler, "sampleHandler");
-		BeforeCreateEvent beforeCreateEvent = new BeforeCreateEvent(new Person());
 
-		invoker.onApplicationEvent(beforeCreateEvent);
+		invoker.onApplicationEvent(new BeforeCreateEvent(new Person()));
 
-		assertThat(sampleHandler.wasCalled(), is(true));
+		assertThat(sampleHandler.wasCalled, is(true));
 	}
 
 	@RepositoryEventHandler
@@ -79,15 +81,11 @@ public class AnnotatedEventHandlerInvokerUnitTests {
 	@RepositoryEventHandler
 	static class SampleWithPrivateHandler {
 
-		private boolean wasCalled = false;
+		boolean wasCalled = false;
 
 		@HandleBeforeCreate
 		private void method(Person sample) {
 			wasCalled = true;
 		}
-
-		public boolean wasCalled() {
-			return wasCalled;
-		}
 	}
 }