Fix annotation styling issues

Update all annotations so that each is on its own line and
consistently use the short form (i.e. don't use `value=`) when
possible.

Issue: SPR-16968

spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java

@@ -875,7 +875,11 @@ public abstract class AbstractAutowireCapableBeanFactory extends AbstractBeanFac
 		/**
 		 * Holder used to keep a reference to a {@code Class} value.
 		 */
-		class Holder { @Nullable Class<?> value = null; }
+		class Holder {
+
+			@Nullable
+			Class<?> value = null;
+		}
 
 		final Holder objectType = new Holder();