From c942d442e82f5ccc3678969cac56e98e478a0a8c Mon Sep 17 00:00:00 2001
From: lilu <admin@lilu.org.cn>
Date: Mon, 29 Jun 2020 15:49:34 +0800
Subject: [PATCH] second commit #1789 update JobRegistryMonitorHelper.java,
 replace String with StringBuilder

---
 .../xxl/job/admin/core/thread/JobRegistryMonitorHelper.java  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobRegistryMonitorHelper.java b/xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobRegistryMonitorHelper.java
index 5c23237d..64a6921d 100644
--- a/xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobRegistryMonitorHelper.java
+++ b/xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobRegistryMonitorHelper.java
@@ -66,10 +66,11 @@ public class JobRegistryMonitorHelper {
 								String addressListStr = null;
 								if (registryList!=null && !registryList.isEmpty()) {
 									Collections.sort(registryList);
-									addressListStr = "";
+									StringBuilder sb = new StringBuilder();
 									for (String item:registryList) {
-										addressListStr += item + ",";
+										sb.append(item).append(",");
 									}
+									addressListStr = sb.toString();
 									addressListStr = addressListStr.substring(0, addressListStr.length()-1);
 								}
 								group.setAddressList(addressListStr);