Polishing

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

@@ -238,6 +238,7 @@ public interface BeanDefinition extends AttributeAccessor, BeanMetadataElement {
 	/**
 	 * Return whether this a <b>Prototype</b>, with an independent instance
 	 * returned for each call.
+	 * @since 3.0
 	 * @see #SCOPE_PROTOTYPE
 	 */
 	boolean isPrototype();