diff --git a/core/src/com/cloud/agent/api/routing/SetStaticRouteAnswer.java b/core/src/com/cloud/agent/api/routing/SetStaticRouteAnswer.java
index abdcba86c6f..cf2b95288fe 100644
--- a/core/src/com/cloud/agent/api/routing/SetStaticRouteAnswer.java
+++ b/core/src/com/cloud/agent/api/routing/SetStaticRouteAnswer.java
@@ -16,6 +16,8 @@
 // under the License.
 package com.cloud.agent.api.routing;
 
+import java.util.Arrays;
+
 import com.cloud.agent.api.Answer;
 
 public class SetStaticRouteAnswer extends Answer {
@@ -26,11 +28,16 @@ public class SetStaticRouteAnswer extends Answer {
 
     public SetStaticRouteAnswer(SetStaticRouteCommand cmd, boolean success, String[] results) {
         super(cmd, success, null);
-        assert (cmd.getStaticRoutes().length == results.length) : "Static routes and their results should be the same length";
-        this.results = results;
+        if (results != null) {
+            assert (cmd.getStaticRoutes().length == results.length) : "Static routes and their results should be the same length";
+            this.results = Arrays.copyOf(results, results.length);
+        }
     }
 
     public String[] getResults() {
-        return results;
+        if (results != null) {
+            return Arrays.copyOf(results, results.length);
+        }
+        return null;
     }
 }