{Synapse} Fixed issue for "Start-AzSynapseTrigger/Stop-AzSynapseTrigger" to not throw exception when Request Status is 202 (#21839)

Author: SaurabhSharma-MSFT

src/Synapse/Synapse/ChangeLog.md

@@ -20,6 +20,7 @@
 
 ## Upcoming Release
 * Remove the unnecessary breaking change of parameter '-SparkConfigFilePath' for `New-AzSynapseSparkPool` and `Update-AzSynapseSparkPool` cmdlets
+* Fixed the issue for "Start-AzSynapseTrigger/Stop-AzSynapseTrigger" to not throw exception when Request Status is 202
 
 ## Version 2.3.1
 * Updated Azure.Core to 1.31.0.

src/Synapse/Synapse/Common/Utils.cs

@@ -21,6 +21,7 @@
 using Microsoft.Azure.Management.Internal.Resources.Utilities.Models;
 using Microsoft.Azure.Management.Synapse.Models;
 using Microsoft.Rest.Azure;
+using Newtonsoft.Json;
 using System;
 using System.Collections;
 using System.Collections.Generic;
@@ -238,8 +239,10 @@ public static Response Poll(this Operation operation)
         {
             var result = operation.WaitForCompletionResponseAsync().Result;
             var responseContent = result.Content;
-            if (responseContent?.ToString().IsEmptyOrWhiteSpace() == false)
+            
+            if (responseContent?.ToString() != "{}" && responseContent?.ToString().IsEmptyOrWhiteSpace() == false)
             {
+
                 throw new Exception(responseContent?.ToString());
             }
             return result;