Controller/Repository/Service declare value attribute as alias for Component

Issue: SPR-16066

Author: jhoeller

spring-context/src/main/java/org/springframework/stereotype/Controller.java

@@ -22,6 +22,8 @@
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+import org.springframework.core.annotation.AliasFor;
+
 /**
  * Indicates that an annotated class is a "Controller" (e.g. a web controller).
  *
@@ -48,6 +50,7 @@
 	 * to be turned into a Spring bean in case of an autodetected component.
 	 * @return the suggested component name, if any
 	 */
+	@AliasFor(annotation = Component.class)
 	String value() default "";
 
 }

spring-context/src/main/java/org/springframework/stereotype/Repository.java

@@ -22,6 +22,8 @@
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+import org.springframework.core.annotation.AliasFor;
+
 /**
  * Indicates that an annotated class is a "Repository", originally defined by
  * Domain-Driven Design (Evans, 2003) as "a mechanism for encapsulating storage,
@@ -64,6 +66,7 @@
 	 * to be turned into a Spring bean in case of an autodetected component.
 	 * @return the suggested component name, if any
 	 */
+	@AliasFor(annotation = Component.class)
 	String value() default "";
 
 }

spring-context/src/main/java/org/springframework/stereotype/Service.java

@@ -22,6 +22,8 @@
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+import org.springframework.core.annotation.AliasFor;
+
 /**
  * Indicates that an annotated class is a "Service", originally defined by Domain-Driven
  * Design (Evans, 2003) as "an operation offered as an interface that stands alone in the
@@ -50,6 +52,7 @@
 	 * to be turned into a Spring bean in case of an autodetected component.
 	 * @return the suggested component name, if any
 	 */
+	@AliasFor(annotation = Component.class)
 	String value() default "";
 
 }