[GitHub] [spark] martin-g commented on a change in pull request #35884: [SPARK-38579][SQL][WEBUI]Requesting Restful API can cause NullPointerException

[GitBox <gi...@apache.org>]

martin-g commented on a change in pull request #35884:
URL: https://github.com/apache/spark/pull/35884#discussion_r831854998



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File path: sql/core/src/main/scala/org/apache/spark/status/api/v1/sql/SqlResource.scala
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@@ -94,7 +94,8 @@ private[v1] class SqlResource extends BaseAppResource {
 
     val duration = exec.completionTime.getOrElse(new Date()).getTime - exec.submissionTime
     val planDetails = if (planDescription) exec.physicalPlanDescription else ""
-    val nodes = if (details) printableMetrics(graph.allNodes, exec.metricValues) else Seq.empty
+    val nodes = if (details) printableMetrics(graph.allNodes,
+      Option(exec.metricValues).getOrElse(Map())) else Seq.empty

Review comment:
       ```suggestion
         Option(exec.metricValues).getOrElse(Map.empty)) else Seq.empty
   ```




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