From de27ef2455b0d70db26ef45ac908a230346d150a Mon Sep 17 00:00:00 2001
From: Paul Moineau <pmoineau@salesforce.com>
Date: Wed, 6 Sep 2023 12:04:20 -0400
Subject: [PATCH] W-14071255: set isAbsent(true) for null values

---
 .../service/engine/GraphiteSeriesDataServlet.java     | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/carbonj.service/src/main/java/com/demandware/carbonj/service/engine/GraphiteSeriesDataServlet.java b/carbonj.service/src/main/java/com/demandware/carbonj/service/engine/GraphiteSeriesDataServlet.java
index c086ff0f..751bf364 100644
--- a/carbonj.service/src/main/java/com/demandware/carbonj/service/engine/GraphiteSeriesDataServlet.java
+++ b/carbonj.service/src/main/java/com/demandware/carbonj/service/engine/GraphiteSeriesDataServlet.java
@@ -171,8 +171,15 @@ else if ( protobuf )
                 {
                     LOG.info( String.format( "carbonapi request: found value [%s]",
                         ( value == null ? "null" : (double) value ) ) );
-                    metricsSeriesBuilder.addValues(value);
-                    metricsSeriesBuilder.addIsAbsent(false);
+                    if ( value == null )
+                    {
+                        metricsSeriesBuilder.addIsAbsent(true);
+                    }
+                    else
+                    {
+                        metricsSeriesBuilder.addValues(value);
+                        metricsSeriesBuilder.addIsAbsent(false);
+                    }
                 }
 
                 MetricsResponse.Series metricsSeries = metricsSeriesBuilder.build();