Fix potential NPE in MicrometerRecorder

Fixes: quarkusio#35443 (cherry picked from commit a8b1641)
gsmet · Aug 26, 2023 · 75cd41d · 75cd41d
1 parent c9265e3
commit 75cd41d
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/...ns/micrometer/runtime/src/main/java/io/quarkus/micrometer/runtime/MicrometerRecorder.java b/...ns/micrometer/runtime/src/main/java/io/quarkus/micrometer/runtime/MicrometerRecorder.java
@@ -94,7 +94,8 @@ public void configureRegistries(MicrometerConfig config,
                 Class<?> registryClass = registry.getClass();
                 applyMeterFilters(registry, classMeterFilters.get(registryClass));
 
-                var classSpecificCustomizers = classMeterRegistryCustomizers.get(registryClass);
+                var classSpecificCustomizers = classMeterRegistryCustomizers.getOrDefault(registryClass,
+                        Collections.emptyList());
                 var newList = new ArrayList<MeterRegistryCustomizer>(
                         globalMeterRegistryCustomizers.size() + classSpecificCustomizers.size());
                 newList.addAll(globalMeterRegistryCustomizers);