From 23174526c58617264c6cb59dec34e2b699f8d3d7 Mon Sep 17 00:00:00 2001
From: gongdewei <kylixs@qq.com>
Date: Tue, 20 Jul 2021 15:37:14 +0800
Subject: [PATCH] Fix NPE of heartbeatInterval option

---
 core/src/main/java/com/taobao/arthas/core/Arthas.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/src/main/java/com/taobao/arthas/core/Arthas.java b/core/src/main/java/com/taobao/arthas/core/Arthas.java
index bfa75e006..ebdf4a7ab 100644
--- a/core/src/main/java/com/taobao/arthas/core/Arthas.java
+++ b/core/src/main/java/com/taobao/arthas/core/Arthas.java
@@ -78,7 +78,10 @@ public class Arthas {
         configure.setPassword((String) commandLine.getOptionValue("password"));
 
         configure.setChannelServer((String) commandLine.getOptionValue("channel-server"));
-        configure.setHeartbeatInterval((Integer) commandLine.getOptionValue("heartbeat-interval"));
+        Integer heartbeatIntervalValue = commandLine.getOptionValue("heartbeat-interval");
+        if (heartbeatIntervalValue != null) {
+            configure.setHeartbeatInterval(heartbeatIntervalValue);
+        }
 
         configure.setTunnelServer((String) commandLine.getOptionValue("tunnel-server"));
         configure.setAgentId((String) commandLine.getOptionValue("agent-id"));