Deprecated support classes against interfaces with default methods

Author: parikshitdutta

spring-batch-core/src/main/java/org/springframework/batch/core/listener/ChunkListenerSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2013 the original author or authors.
+ * Copyright 2006-2021 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.
@@ -24,7 +24,9 @@
  * @author Lucas Ward
  * @author Michael Minella
  *
+ * @deprecated as of 5.0, in favor of the default methods on the {@link ChunkListener}
  */
+@Deprecated
 public class ChunkListenerSupport implements ChunkListener {
 
 	/* (non-Javadoc)

spring-batch-core/src/main/java/org/springframework/batch/core/listener/JobExecutionListenerSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2013 the original author or authors.
+ * Copyright 2006-2021 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.
@@ -21,7 +21,9 @@
 /**
  * @author Dave Syer
  *
+ * @deprecated as of 5.0, in favor of the default methods on the {@link JobExecutionListener}
  */
+@Deprecated
 public class JobExecutionListenerSupport implements JobExecutionListener {
 
 	/* (non-Javadoc)

spring-batch-core/src/main/java/org/springframework/batch/core/listener/StepExecutionListenerSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2019 the original author or authors.
+ * Copyright 2006-2021 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.
@@ -23,7 +23,9 @@
 /**
  * @author Dave Syer
  *
+ * @deprecated as of 5.0, in favor of the default methods on the {@link StepExecutionListener}
  */
+@Deprecated
 public class StepExecutionListenerSupport implements StepExecutionListener {
 
 	/* (non-Javadoc)