diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/BrokerInterceptorTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/BrokerInterceptorTest.java
index 06f091ba9059e..d6b26f31a1f18 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/BrokerInterceptorTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/BrokerInterceptorTest.java
@@ -18,12 +18,15 @@
  */
 package org.apache.pulsar.broker.intercept;
 
+import static org.mockito.AdditionalAnswers.delegatesTo;
 import static org.mockito.ArgumentMatchers.same;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.testng.Assert.assertEquals;
 import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
@@ -93,7 +96,9 @@ public void setup() throws Exception {
     @Override
     protected void customizeMainPulsarTestContextBuilder(PulsarTestContext.Builder pulsarTestContextBuilder) {
         HashMap<String, BrokerInterceptorWithClassLoader> brokerInterceptorWithClassLoaderHashMap = new HashMap<>();
-        NarClassLoader narClassLoader = mock(NarClassLoader.class);
+        // The filter chain uses this context class loader for resource and service-provider lookup.
+        NarClassLoader narClassLoader = mock(NarClassLoader.class,
+                delegatesTo(new URLClassLoader(new URL[0], getClass().getClassLoader())));
         BrokerInterceptorWithClassLoader counterBrokerInterceptor =
                 new BrokerInterceptorWithClassLoader(new CounterBrokerInterceptor(), narClassLoader);
         brokerInterceptorWithClassLoaderHashMap.put(CounterBrokerInterceptor.NAME, counterBrokerInterceptor);
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/ExceptionsBrokerInterceptorTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/ExceptionsBrokerInterceptorTest.java
index d08209be88dda..982c7c47e082e 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/ExceptionsBrokerInterceptorTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/intercept/ExceptionsBrokerInterceptorTest.java
@@ -18,10 +18,13 @@
  */
 package org.apache.pulsar.broker.intercept;
 
+import static org.mockito.AdditionalAnswers.delegatesTo;
 import static org.mockito.Mockito.mock;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertNotNull;
 import static org.testng.Assert.assertTrue;
+import java.net.URL;
+import java.net.URLClassLoader;
 import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Map;
@@ -63,7 +66,9 @@ protected void cleanup() throws Exception {
     protected void customizeMainPulsarTestContextBuilder(PulsarTestContext.Builder pulsarTestContextBuilder) {
         Map<String, BrokerInterceptorWithClassLoader> listenerMap = new HashMap<>();
         BrokerInterceptor interceptor = new ExceptionsBrokerInterceptor();
-        NarClassLoader narClassLoader = mock(NarClassLoader.class);
+        // The filter chain uses this context class loader for resource and service-provider lookup.
+        NarClassLoader narClassLoader = mock(NarClassLoader.class,
+                delegatesTo(new URLClassLoader(new URL[0], getClass().getClassLoader())));
         listenerMap.put(interceptorName, new BrokerInterceptorWithClassLoader(interceptor, narClassLoader));
         pulsarTestContextBuilder.brokerInterceptor(new BrokerInterceptors(listenerMap));
     }