Use newCachedTreadPool() instead of newSingleThreadExecutor() in InetUtils (#1365)

Co-authored-by: tsypanovs <serhii.tsypanov@dxc.com>

Author: stsypanov

spring-cloud-commons/src/main/java/org/springframework/cloud/commons/util/InetUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2024 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.
@@ -35,10 +35,10 @@
 
 /**
  * @author Spencer Gibb
+ * @author Sergey Tsypanov
  */
 public class InetUtils implements Closeable {
 
-	// TODO: maybe shutdown the thread pool if it isn't being used?
 	private final ExecutorService executorService;
 
 	private final InetUtilsProperties properties;
@@ -47,7 +47,7 @@ public class InetUtils implements Closeable {
 
 	public InetUtils(final InetUtilsProperties properties) {
 		this.properties = properties;
-		this.executorService = Executors.newSingleThreadExecutor(r -> {
+		this.executorService = Executors.newCachedThreadPool(r -> {
 			Thread thread = new Thread(r);
 			thread.setName(InetUtilsProperties.PREFIX);
 			thread.setDaemon(true);