From 7893cfe014258c5fb7f1f17058879d37abd74868 Mon Sep 17 00:00:00 2001
From: yichengxian <13272263301@163.com>
Date: Wed, 5 Aug 2020 22:12:32 +0800
Subject: [PATCH] =?UTF-8?q?[bug=E4=BF=AE=E5=A4=8D]=20=E4=BF=AE=E5=A4=8D?=
 =?UTF-8?q?=E5=A4=9A=E7=BA=BF=E7=A8=8B=E4=B8=8BThreadLocalRandom=E5=85=B1?=
 =?UTF-8?q?=E4=BA=ABseed=E5=AF=BC=E8=87=B4=E9=9A=8F=E6=9C=BA=E6=95=B0?=
 =?UTF-8?q?=E4=B8=80=E6=A0=B7,=E6=9D=83=E9=87=8D=E6=A6=82=E7=8E=87bug?=
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---
 .../src/main/java/cn/hutool/core/lang/WeightRandom.java      | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/hutool-core/src/main/java/cn/hutool/core/lang/WeightRandom.java b/hutool-core/src/main/java/cn/hutool/core/lang/WeightRandom.java
index fd5f4dd0e..346232860 100644
--- a/hutool-core/src/main/java/cn/hutool/core/lang/WeightRandom.java
+++ b/hutool-core/src/main/java/cn/hutool/core/lang/WeightRandom.java
@@ -32,7 +32,7 @@ public class WeightRandom<T> implements Serializable {
 	private static final long serialVersionUID = -8244697995702786499L;
 
 	private final TreeMap<Double, T> weightMap;
-	private final Random random;
+
 
 	/**
 	 * 创建权重随机获取器
@@ -50,7 +50,7 @@ public class WeightRandom<T> implements Serializable {
 	 */
 	public WeightRandom() {
 		weightMap = new TreeMap<>();
-		random = RandomUtil.getRandom();
+
 	}
 
 	/**
@@ -141,6 +141,7 @@ public class WeightRandom<T> implements Serializable {
 		if(MapUtil.isEmpty(this.weightMap)) {
 			return null;
 		}
+		final Random random = RandomUtil.getRandom();
 		final double randomWeight = this.weightMap.lastKey() * random.nextDouble();
 		final SortedMap<Double, T> tailMap = this.weightMap.tailMap(randomWeight, false);
 		return this.weightMap.get(tailMap.firstKey());