From 2f47e8a3d3603dfb30811621edadc0ef648e6010 Mon Sep 17 00:00:00 2001
From: jack-berg <34418638+jack-berg@users.noreply.github.com>
Date: Fri, 5 Nov 2021 15:16:32 -0500
Subject: [PATCH] Update garbage collector instruments to be async counters
 (#4600)

---
 .../instrumentation/runtimemetrics/GarbageCollector.java    | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/instrumentation/runtime-metrics/library/src/main/java/io/opentelemetry/instrumentation/runtimemetrics/GarbageCollector.java b/instrumentation/runtime-metrics/library/src/main/java/io/opentelemetry/instrumentation/runtimemetrics/GarbageCollector.java
index aed06af2bb..7878f43d88 100644
--- a/instrumentation/runtime-metrics/library/src/main/java/io/opentelemetry/instrumentation/runtimemetrics/GarbageCollector.java
+++ b/instrumentation/runtime-metrics/library/src/main/java/io/opentelemetry/instrumentation/runtimemetrics/GarbageCollector.java
@@ -42,8 +42,7 @@ public final class GarbageCollector {
       labelSets.add(Attributes.of(GC_KEY, gc.getName()));
     }
     meter
-        .gaugeBuilder("runtime.jvm.gc.time")
-        .ofLongs()
+        .counterBuilder("runtime.jvm.gc.time")
         .setDescription("Time spent in a given JVM garbage collector in milliseconds.")
         .setUnit("ms")
         .buildWithCallback(
@@ -54,8 +53,7 @@ public final class GarbageCollector {
               }
             });
     meter
-        .gaugeBuilder("runtime.jvm.gc.count")
-        .ofLongs()
+        .counterBuilder("runtime.jvm.gc.count")
         .setDescription(
             "The number of collections that have occurred for a given JVM garbage collector.")
         .setUnit("collections")