Service: switch method declaration order

We do this mainly so the next commit is cleaner & easier to understand.

Author: ctrueden

src/main/java/org/scijava/service/Service.java

@@ -52,31 +52,30 @@
 public interface Service extends RichPlugin, Disposable {
 
 	/**
-	 * Performs any needed initialization when the service is first loaded.
+	 * Registers the service's event handler methods.
 	 * <p>
 	 * NB: This method is not intended to be called directly. It is called by
 	 * the service framework itself (specifically by the {@link ServiceHelper})
 	 * when initializing the service. It should not be called a second time.
 	 * </p>
 	 */
-	default void initialize() {
-		// NB: Do nothing by default.
+	default void registerEventHandlers() {
+		// TODO: Consider removing this method in scijava-common 3.0.0.
+		// Instead, the ServiceHelper could just invoke the lines below directly,
+		// and there would be one less boilerplate Service method to implement.
+		final EventService eventService = context().getService(EventService.class);
+		if (eventService != null) eventService.subscribe(this);
 	}
 
 	/**
-	 * Registers the service's event handler methods.
+	 * Performs any needed initialization when the service is first loaded.
 	 * <p>
 	 * NB: This method is not intended to be called directly. It is called by
 	 * the service framework itself (specifically by the {@link ServiceHelper})
 	 * when initializing the service. It should not be called a second time.
 	 * </p>
 	 */
-	default void registerEventHandlers() {
-		// TODO: Consider removing this method in scijava-common 3.0.0.
-		// Instead, the ServiceHelper could just invoke the lines below directly,
-		// and there would be one less boilerplate Service method to implement.
-		final EventService eventService = context().getService(EventService.class);
-		if (eventService != null) eventService.subscribe(this);
+	default void initialize() {
+		// NB: Do nothing by default.
 	}
-
 }