From 28314d4fed2721dbabac426b41a416c79df772f0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=B1=E9=80=9A=E9=80=9A?= <zhutong66@163.com>
Date: Thu, 14 Dec 2023 20:05:28 +0800
Subject: [PATCH] Fix NullArgumentException of getQuantile method in
 DescriptiveStatisticsHistogramStatistics

(cherry picked from commit 5e1deeea19c2e73f3bc6f1f9881a778d13abf6a4)
---
 .../metrics/DescriptiveStatisticsHistogramStatistics.java       | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/flink-runtime/src/main/java/org/apache/flink/runtime/metrics/DescriptiveStatisticsHistogramStatistics.java b/flink-runtime/src/main/java/org/apache/flink/runtime/metrics/DescriptiveStatisticsHistogramStatistics.java
index 7995a2edc5edd..c8fa2b2a4d9c9 100644
--- a/flink-runtime/src/main/java/org/apache/flink/runtime/metrics/DescriptiveStatisticsHistogramStatistics.java
+++ b/flink-runtime/src/main/java/org/apache/flink/runtime/metrics/DescriptiveStatisticsHistogramStatistics.java
@@ -174,6 +174,8 @@ private void maybeInitPercentile() {
             }
             if (data != null) {
                 percentilesImpl.setData(data);
+            } else {
+                percentilesImpl.setData(new double[] {0.0});
             }
         }
     }