Polish core retry internals

Author: sbrannen

spring-core/src/main/java/org/springframework/core/retry/RetryException.java

@@ -44,7 +44,7 @@
 public class RetryException extends Exception {
 
 	@Serial
-	private static final long serialVersionUID = 5439915454935047936L;
+	private static final long serialVersionUID = 1L;
 
 
 	/**

spring-core/src/main/java/org/springframework/core/retry/RetryTemplate.java

@@ -16,6 +16,7 @@
 
 package org.springframework.core.retry;
 
+import java.io.Serial;
 import java.util.ArrayDeque;
 import java.util.Deque;
 
@@ -148,7 +149,7 @@ public RetryListener getRetryListener() {
 							.formatted(retryableName));
 			// Retry process starts here
 			BackOffExecution backOffExecution = this.retryPolicy.getBackOff().start();
-			Deque<Throwable> exceptions = new ArrayDeque<>();
+			Deque<Throwable> exceptions = new ArrayDeque<>(4);
 			exceptions.add(initialException);
 
 			Throwable lastException = initialException;
@@ -200,8 +201,10 @@ public RetryListener getRetryListener() {
 		}
 	}
 
+
 	private static class RetryInterruptedException extends RetryException {
 
+		@Serial
 		private static final long serialVersionUID = 1L;
 
 
@@ -213,7 +216,6 @@ private static class RetryInterruptedException extends RetryException {
 		public int getRetryCount() {
 			return (getSuppressed().length - 1);
 		}
-
 	}
 
 }

spring-core/src/main/java/org/springframework/core/retry/support/CompositeRetryListener.java

@@ -46,6 +46,7 @@ public class CompositeRetryListener implements RetryListener {
 
 	/**
 	 * Create a new {@code CompositeRetryListener}.
+	 * @see #addListener(RetryListener)
 	 */
 	public CompositeRetryListener() {
 	}
@@ -56,7 +57,7 @@ public CompositeRetryListener() {
 	 * @param listeners the list of delegate listeners to register; must not be empty
 	 */
 	public CompositeRetryListener(List<RetryListener> listeners) {
-		Assert.notEmpty(listeners, "RetryListener List must not be empty");
+		Assert.notEmpty(listeners, "RetryListener list must not be empty");
 		this.listeners.addAll(listeners);
 	}