From 7d4224e3a5f12887a7e4df4dd14675f9895254ad Mon Sep 17 00:00:00 2001
From: "koo.taejin" <koo.taejin@navercorp.com>
Date: Thu, 3 Mar 2016 18:45:43 +0900
Subject: [PATCH] Add method, that get scatter data made of dot group . #1518

fixed bug.
---
 .../pinpoint/web/applicationmap/ApplicationMapBuilder.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/web/src/main/java/com/navercorp/pinpoint/web/applicationmap/ApplicationMapBuilder.java b/web/src/main/java/com/navercorp/pinpoint/web/applicationmap/ApplicationMapBuilder.java
index 46ade3352030..4dbf470a4314 100644
--- a/web/src/main/java/com/navercorp/pinpoint/web/applicationmap/ApplicationMapBuilder.java
+++ b/web/src/main/java/com/navercorp/pinpoint/web/applicationmap/ApplicationMapBuilder.java
@@ -137,6 +137,10 @@ public NodeHistogram createNodeHistogram(Application application) {
 
     private ServerInstanceList getServerInstanceList(final Node node, final AgentInfoService agentInfoService) {
         long timestamp = range.getTo();
+        if (timestamp < 0) {
+            return new ServerInstanceList();
+        }
+
         Set<AgentInfo> agentList = agentInfoService.getAgentsByApplicationNameWithoutStatus(node.getApplication().getName(), timestamp);
         if (agentList.isEmpty()) {
             logger.warn("agentInfo not found. applicationName:{}", node.getApplication());