From 79100f6f27e521a7d00569541f171450b4507760 Mon Sep 17 00:00:00 2001
From: taoxin <hhdd1209>
Date: Thu, 21 Oct 2021 20:42:37 +0800
Subject: [PATCH] fix npe if network is error when download remote versions

---
 boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java b/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
index e3685f15..31a74515 100644
--- a/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
+++ b/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
@@ -699,6 +699,12 @@ public class Bootstrap {
         result.append("Remote versions:\n");
 
 		List<String> remoteVersions = DownloadUtils.readRemoteVersions();
+		//npe fix
+        if(remoteVersions==null){
+            AnsiLog.error("Read remote versions fail");
+            return "";
+        }
+
 		Collections.reverse(remoteVersions);
 		for (String version : remoteVersions) {
 			result.append(" " + version).append('\n');
-- 
Gitee