Update Javadoc regarding repeatable annotation support

spring-context/src/main/java/org/springframework/jmx/export/annotation/ManagedNotification.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -27,7 +27,8 @@ import java.lang.annotation.Target;
 /**
  * Type-level annotation that indicates a JMX notification emitted by a bean.
  *
- * <p>As of Spring Framework 4.2.4, this annotation is declared as repeatable.
+ * <p>This annotation can be used as a <em>{@linkplain Repeatable repeatable}</em>
+ * annotation.
  *
  * @author Rob Harrop
  * @since 2.0

spring-context/src/main/java/org/springframework/jmx/export/annotation/ManagedOperationParameter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -26,9 +26,9 @@ import java.lang.annotation.Target;
 /**
  * Method-level annotation used to provide metadata about operation parameters,
  * corresponding to a {@code ManagedOperationParameter} attribute.
- * Used as part of a {@link ManagedOperationParameters} annotation.
  *
- * <p>As of Spring Framework 4.2.4, this annotation is declared as repeatable.
+ * <p>This annotation can be used as a <em>{@linkplain Repeatable repeatable}</em>
+ * annotation.
  *
  * @author Rob Harrop
  * @since 1.2

spring-context/src/main/java/org/springframework/scheduling/annotation/Scheduled.java

@@ -40,6 +40,9 @@ import org.springframework.scheduling.config.ScheduledTaskRegistrar;
  * done manually or, more conveniently, through the {@code <task:annotation-driven/>}
  * XML element or {@link EnableScheduling @EnableScheduling} annotation.
  *
+ * <p>This annotation can be used as a <em>{@linkplain Repeatable repeatable}</em>
+ * annotation.
+ *
  * <p>This annotation may be used as a <em>meta-annotation</em> to create custom
  * <em>composed annotations</em> with attribute overrides.
  *