From 32337a52a63960426f9175ddddbd5c4e514a02d1 Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Wed, 4 Sep 2019 09:26:57 +0800
Subject: [PATCH] fix NetUtil.getUsableLocalPort

---
 hutool-core/src/main/java/cn/hutool/core/net/NetUtil.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/hutool-core/src/main/java/cn/hutool/core/net/NetUtil.java b/hutool-core/src/main/java/cn/hutool/core/net/NetUtil.java
index 41a7ba0f5..85bedbfb4 100644
--- a/hutool-core/src/main/java/cn/hutool/core/net/NetUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/net/NetUtil.java
@@ -159,8 +159,10 @@ public class NetUtil {
 	 * @since 4.5.4
 	 */
 	public static int getUsableLocalPort(int minPort, int maxPort) {
-		for (int i = minPort; i <= maxPort; i++) {
-			int randomPort = RandomUtil.randomInt(minPort, maxPort + 1);
+		final int maxPortExclude = maxPort +1;
+		int randomPort;
+		for (int i = minPort; i < maxPortExclude; i++) {
+			randomPort = RandomUtil.randomInt(minPort, maxPortExclude);
 			if (isUsableLocalPort(randomPort)) {
 				return randomPort;
 			}