From c72863825401b1bb2ccb6049fec0eec14959e5b5 Mon Sep 17 00:00:00 2001
From: Naveen Malik <nmalik@redhat.com>
Date: Fri, 16 Jan 2015 08:32:35 -0500
Subject: [PATCH] Updated HystrixServoMetricsPublisher initalization of
 singleton

---
 .../HystrixServoMetricsPublisher.java              | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/hystrix-contrib/hystrix-servo-metrics-publisher/src/main/java/com/netflix/hystrix/contrib/servopublisher/HystrixServoMetricsPublisher.java b/hystrix-contrib/hystrix-servo-metrics-publisher/src/main/java/com/netflix/hystrix/contrib/servopublisher/HystrixServoMetricsPublisher.java
index 7d81d391c..d5c74f8c1 100644
--- a/hystrix-contrib/hystrix-servo-metrics-publisher/src/main/java/com/netflix/hystrix/contrib/servopublisher/HystrixServoMetricsPublisher.java
+++ b/hystrix-contrib/hystrix-servo-metrics-publisher/src/main/java/com/netflix/hystrix/contrib/servopublisher/HystrixServoMetricsPublisher.java
@@ -34,12 +34,24 @@
  */
 public class HystrixServoMetricsPublisher extends HystrixMetricsPublisher {
 
-    private static HystrixServoMetricsPublisher INSTANCE = new HystrixServoMetricsPublisher();
+    private static HystrixServoMetricsPublisher INSTANCE = null;
 
     public static HystrixServoMetricsPublisher getInstance() {
+        if (INSTANCE == null) {
+            HystrixServoMetricsPublisher temp = createInstance();
+            INSTANCE = temp;
+        }
         return INSTANCE;
     }
 
+    private static synchronized HystrixServoMetricsPublisher createInstance() {
+        if (INSTANCE == null) {
+            return new HystrixServoMetricsPublisher();
+        } else {
+            return INSTANCE;
+        }
+    }
+
     private HystrixServoMetricsPublisher() {
     }