From 79df8efeb746189b553aed3b1b03fa1573c6ca52 Mon Sep 17 00:00:00 2001
From: YevhenBondarenko <ybondarenko@thingsboard.io>
Date: Thu, 28 Oct 2021 11:34:39 +0300
Subject: [PATCH] fixed NPE

---
 .../thingsboard/rule/engine/rpc/TbSendRPCRequestNode.java   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rpc/TbSendRPCRequestNode.java b/rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rpc/TbSendRPCRequestNode.java
index 196dd1feb7..0a1cca72d9 100644
--- a/rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rpc/TbSendRPCRequestNode.java
+++ b/rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/rpc/TbSendRPCRequestNode.java
@@ -138,7 +138,11 @@ public class TbSendRPCRequestNode implements TbNode {
     }
 
     private String parseJsonData(JsonElement paramsEl) {
-        return paramsEl.isJsonPrimitive() ? paramsEl.getAsString() : gson.toJson(paramsEl);
+        if (paramsEl != null) {
+            return paramsEl.isJsonPrimitive() ? paramsEl.getAsString() : gson.toJson(paramsEl);
+        } else {
+            return null;
+        }
     }
 
 }