From 6a69a6dd3c0eebeb12d05e115f2271fe1d2d0f0a Mon Sep 17 00:00:00 2001
From: bd2019us <bd2019us@126.com>
Date: Sat, 13 Apr 2019 20:01:55 -0500
Subject: [PATCH] [EAGLE-1096] use optJSONArray to avoid exception

---
 .../java/org/apache/eagle/topology/utils/JMXQueryHelper.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eagle-topology-check/eagle-topology-app/src/main/java/org/apache/eagle/topology/utils/JMXQueryHelper.java b/eagle-topology-check/eagle-topology-app/src/main/java/org/apache/eagle/topology/utils/JMXQueryHelper.java
index 860a1b895c..13e4d3ffc3 100644
--- a/eagle-topology-check/eagle-topology-app/src/main/java/org/apache/eagle/topology/utils/JMXQueryHelper.java
+++ b/eagle-topology-check/eagle-topology-app/src/main/java/org/apache/eagle/topology/utils/JMXQueryHelper.java
@@ -56,7 +56,7 @@ private static Map<String, JMXBean> parseStream(InputStream is) {
         final Map<String, JMXBean> resultMap = new HashMap<String, JMXBean>();
         final JSONTokener tokener = new JSONTokener(is);
         final JSONObject jsonBeansObject = new JSONObject(tokener);
-        final JSONArray jsonArray = jsonBeansObject.getJSONArray("beans");
+        final JSONArray jsonArray = jsonBeansObject.optJSONArray("beans");
         int size = jsonArray.length();
         for (int i = 0; i < size; ++i) {
             final JSONObject obj = (JSONObject) jsonArray.get(i);