Add constructors with var args/Lists

For classes that have a setter for a List<T> field,
create Constructors that take List<T> and var args of T.

Issue #686

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2013 the original author or authors.
+ * Copyright 2006-2022 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.
@@ -15,6 +15,7 @@
  */
 package org.springframework.batch.core.listener;
 
+import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
 
@@ -30,6 +31,31 @@ public class CompositeChunkListener implements ChunkListener {
 
 	private OrderedComposite<ChunkListener> listeners = new OrderedComposite<>();
 
+	/**
+	 * Default constrcutor
+	 */
+	public CompositeChunkListener() {
+
+	}
+
+	/**
+	 * Convenience constructor for setting the {@link ChunkListener}s.
+	 *
+	 * @param listeners list of {@link ChunkListener}.
+	 */
+	public CompositeChunkListener(List<? extends ChunkListener> listeners) {
+		setListeners(listeners);
+	}
+
+	/**
+	 * Convenience constructor for setting the {@link ChunkListener}s.
+	 *
+	 * @param listeners array of {@link ChunkListener}.
+	 */
+	public CompositeChunkListener(ChunkListener... listeners) {
+		this(Arrays.asList(listeners));
+	}
+
 	/**
 	 * Public setter for the listeners.
 	 *