diff --git a/test-framework/junit5-config/src/main/java/io/quarkus/test/config/TestConfigProviderResolver.java b/test-framework/junit5-config/src/main/java/io/quarkus/test/config/TestConfigProviderResolver.java
index 9bda00bace7f1..13416d0ad087f 100644
--- a/test-framework/junit5-config/src/main/java/io/quarkus/test/config/TestConfigProviderResolver.java
+++ b/test-framework/junit5-config/src/main/java/io/quarkus/test/config/TestConfigProviderResolver.java
@@ -19,6 +19,8 @@
  * classloader.
  */
 public class TestConfigProviderResolver extends SmallRyeConfigProviderResolver {
+
+    // Note that this class both *extends* and *consumes* SmallRyeConfigProviderResolver. Every method in SmallRyeConfigProviderResolver should be replicated here with a delegation to the instance variable, or there will be subtle and horrible bugs.
     private final SmallRyeConfigProviderResolver resolver;
     private final ClassLoader classLoader;
     private final Map<LaunchMode, SmallRyeConfig> configs;
@@ -96,4 +98,9 @@ public void registerConfig(final Config config, final ClassLoader classLoader) {
     public void releaseConfig(final Config config) {
         resolver.releaseConfig(config);
     }
+
+    @Override
+    public void releaseConfig(final ClassLoader classLoader) {
+        resolver.releaseConfig(classLoader);
+    }
 }