ulysses-you commented on a change in pull request #35972:
URL: https://github.com/apache/spark/pull/35972#discussion_r835124708



##########
File path: 
sql/core/src/main/scala/org/apache/spark/sql/execution/ui/ExecutionPage.scala
##########
@@ -148,6 +155,8 @@ class ExecutionPage(parent: SQLTab) extends 
WebUIPage("execution") with Logging
   }
 
   private def modifiedConfigs(modifiedConfigs: Map[String, String]): Seq[Node] 
= {
+    if (modifiedConfigs.isEmpty) return Nil

Review comment:
       it's nice, acutally save the life. I always click SQL Properties even if 
the Spark version is old ...
   
   But it can be null that we should handle it carefully




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