Clarified role of postProcessAfterInstantiation

Issue: SPR-15732

spring-beans/src/main/java/org/springframework/beans/factory/config/InstantiationAwareBeanPostProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -71,9 +71,8 @@ public interface InstantiationAwareBeanPostProcessor extends BeanPostProcessor {
 	/**
 	 * Perform operations after the bean has been instantiated, via a constructor or factory method,
 	 * but before Spring property population (from explicit properties or autowiring) occurs.
-	 * <p>This is the ideal callback for performing field injection on the given bean instance.
-	 * See Spring's own {@link org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor}
-	 * for a typical example.
+	 * <p>This is the ideal callback for performing custom field injection on the given bean
+	 * instance, right before Spring's autowiring kicks in.
 	 * @param bean the bean instance created, with properties not having been set yet
 	 * @param beanName the name of the bean
 	 * @return {@code true} if properties should be set on the bean; {@code false}