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mmarshall pushed a commit to branch branch-2.8
in repository https://gitbox.apache.org/repos/asf/pulsar.git


The following commit(s) were added to refs/heads/branch-2.8 by this push:
     new 31d16dc  [Tests] Fix flaky 
org.mockito.exceptions.misusing.WrongTypeOfReturnValue issue in broker tests 
(#13621)
31d16dc is described below

commit 31d16dc3f8d4fa87802fbe0229503d680b585d65
Author: Lari Hotari <[email protected]>
AuthorDate: Wed Jan 5 18:05:32 2022 +0200

    [Tests] Fix flaky org.mockito.exceptions.misusing.WrongTypeOfReturnValue 
issue in broker tests (#13621)
    
    - replace spying of a instance with a spy created by Mockito with given
      constructor arguments
    
    (cherry picked from commit 17a971a132eff342e065d009a9cc553004e09b06)
---
 .../mledger/impl/OffloadPrefixReadTest.java        |  4 +-
 .../bookkeeper/test/MockedBookKeeperTestCase.java  |  1 -
 .../org/apache/pulsar/broker/BrokerTestUtil.java   | 15 ++++++
 .../broker/admin/AdminApiGetLastMessageIdTest.java |  2 +-
 .../org/apache/pulsar/broker/admin/AdminTest.java  | 16 +++----
 .../apache/pulsar/broker/admin/NamespacesTest.java |  6 +--
 .../pulsar/broker/admin/PersistentTopicsTest.java  |  5 +-
 .../pulsar/broker/admin/ResourceGroupsTest.java    |  2 +-
 .../broker/auth/MockedPulsarServiceBaseTest.java   |  5 +-
 .../loadbalance/LeaderElectionServiceTest.java     |  5 +-
 .../loadbalance/SimpleLoadManagerImplTest.java     |  5 +-
 .../broker/lookup/http/HttpTopicLookupv2Test.java  | 10 ++--
 .../OwnerShipForCurrentServerTestBase.java         |  7 +--
 .../PersistentDispatcherFailoverConsumerTest.java  | 17 +++----
 .../service/PersistentTopicConcurrentTest.java     | 24 ++++------
 .../pulsar/broker/service/PersistentTopicTest.java | 55 ++++++++++------------
 .../pulsar/broker/service/ServerCnxTest.java       | 21 +++++----
 .../service/TransactionMarkerDeleteTest.java       |  5 +-
 .../service/persistent/MessageDuplicationTest.java |  7 +--
 .../persistent/PersistentSubscriptionTest.java     |  7 +--
 .../broker/transaction/TransactionTestBase.java    |  5 +-
 .../coordinator/TransactionMetaStoreTestBase.java  |  3 +-
 .../apache/pulsar/broker/web/WebServiceTest.java   |  4 +-
 .../client/api/ClientDeduplicationFailureTest.java |  2 +-
 .../client/api/DispatcherBlockConsumerTest.java    |  4 +-
 .../client/impl/BrokerClientIntegrationTest.java   | 14 +++---
 .../pulsar/client/impl/ConnectionPoolTest.java     |  9 ++--
 .../worker/PulsarFunctionE2ESecurityTest.java      |  2 +-
 .../worker/PulsarFunctionLocalRunTest.java         |  2 +-
 .../worker/PulsarFunctionPublishTest.java          |  2 +-
 .../worker/PulsarWorkerAssignmentTest.java         |  2 +-
 .../apache/pulsar/io/AbstractPulsarE2ETest.java    |  2 +-
 .../apache/pulsar/io/PulsarFunctionAdminTest.java  |  2 +-
 .../apache/pulsar/io/PulsarFunctionTlsTest.java    |  2 +-
 .../websocket/proxy/ProxyAuthenticationTest.java   | 12 ++---
 .../websocket/proxy/ProxyAuthorizationTest.java    |  7 +--
 .../websocket/proxy/ProxyConfigurationTest.java    |  6 +--
 .../websocket/proxy/ProxyPublishConsumeTest.java   | 12 ++---
 .../proxy/ProxyPublishConsumeTlsTest.java          |  6 +--
 .../proxy/ProxyPublishConsumeWithoutZKTest.java    |  6 +--
 .../proxy/v1/V1_ProxyAuthenticationTest.java       |  8 +---
 .../pulsar/client/api/MessageRouterTest.java       |  4 +-
 .../worker/FunctionRuntimeManagerTest.java         |  4 +-
 .../pulsar/sql/presto/TestPulsarConnector.java     |  4 +-
 .../pulsar/sql/presto/TestPulsarRecordCursor.java  |  2 +-
 .../sql/presto/decoder/AbstractDecoderTester.java  |  2 +-
 46 files changed, 169 insertions(+), 178 deletions(-)

diff --git 
a/managed-ledger/src/test/java/org/apache/bookkeeper/mledger/impl/OffloadPrefixReadTest.java
 
b/managed-ledger/src/test/java/org/apache/bookkeeper/mledger/impl/OffloadPrefixReadTest.java
index 426a00d..e761b04 100644
--- 
a/managed-ledger/src/test/java/org/apache/bookkeeper/mledger/impl/OffloadPrefixReadTest.java
+++ 
b/managed-ledger/src/test/java/org/apache/bookkeeper/mledger/impl/OffloadPrefixReadTest.java
@@ -66,7 +66,7 @@ import org.testng.annotations.Test;
 public class OffloadPrefixReadTest extends MockedBookKeeperTestCase {
     @Test
     public void testOffloadRead() throws Exception {
-        MockLedgerOffloader offloader = spy(new MockLedgerOffloader());
+        MockLedgerOffloader offloader = spy(MockLedgerOffloader.class);
         ManagedLedgerConfig config = new ManagedLedgerConfig();
         config.setMaxEntriesPerLedger(10);
         config.setMinimumRolloverTime(0, TimeUnit.SECONDS);
@@ -122,7 +122,7 @@ public class OffloadPrefixReadTest extends 
MockedBookKeeperTestCase {
 
     @Test
     public void testBookkeeperFirstOffloadRead() throws Exception {
-        MockLedgerOffloader offloader = spy(new MockLedgerOffloader());
+        MockLedgerOffloader offloader = spy(MockLedgerOffloader.class);
         MockClock clock = new MockClock();
         offloader.getOffloadPolicies()
                 
.setManagedLedgerOffloadedReadPriority(OffloadedReadPriority.BOOKKEEPER_FIRST);
diff --git 
a/managed-ledger/src/test/java/org/apache/bookkeeper/test/MockedBookKeeperTestCase.java
 
b/managed-ledger/src/test/java/org/apache/bookkeeper/test/MockedBookKeeperTestCase.java
index a936165..5d2470c 100644
--- 
a/managed-ledger/src/test/java/org/apache/bookkeeper/test/MockedBookKeeperTestCase.java
+++ 
b/managed-ledger/src/test/java/org/apache/bookkeeper/test/MockedBookKeeperTestCase.java
@@ -22,7 +22,6 @@ import java.lang.reflect.Method;
 import java.util.Optional;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
-
 import org.apache.bookkeeper.client.PulsarMockBookKeeper;
 import org.apache.bookkeeper.common.util.OrderedScheduler;
 import org.apache.bookkeeper.mledger.impl.ManagedLedgerFactoryImpl;
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/BrokerTestUtil.java 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/BrokerTestUtil.java
index ff03e42..224060c 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/BrokerTestUtil.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/BrokerTestUtil.java
@@ -19,6 +19,7 @@
 package org.apache.pulsar.broker;
 
 import java.util.UUID;
+import org.mockito.Mockito;
 
 /**
  * Holds util methods used in test.
@@ -29,4 +30,18 @@ public class BrokerTestUtil {
         return prefix + "-" + UUID.randomUUID();
     }
 
+    /**
+     * Creates a Mockito spy directly without an intermediate instance to spy.
+     * This is to address flaky test issue where a spy created with a given 
instance fails with
+     * {@link org.mockito.exceptions.misusing.WrongTypeOfReturnValue} 
exception.
+     *
+     * @param classToSpy the class to spy
+     * @param args the constructor arguments to use when creating the spy 
instance
+     * @return a spy of the provided class created with given constructor 
arguments
+     */
+    public static <T> T spyWithClassAndConstructorArgs(Class<T> classToSpy, 
Object... args) {
+        return Mockito.mock(classToSpy, Mockito.withSettings()
+                .useConstructor(args)
+                .defaultAnswer(Mockito.CALLS_REAL_METHODS));
+    }
 }
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminApiGetLastMessageIdTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminApiGetLastMessageIdTest.java
index 533a2a5..cb2a8f1 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminApiGetLastMessageIdTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminApiGetLastMessageIdTest.java
@@ -83,7 +83,7 @@ public class AdminApiGetLastMessageIdTest extends 
MockedPulsarServiceBaseTest {
                 new TenantInfoImpl(Sets.newHashSet("appid1"), 
Sets.newHashSet("test")));
         admin.namespaces().createNamespace("prop/ns-abc");
         admin.namespaces().setNamespaceReplicationClusters("prop/ns-abc", 
Sets.newHashSet("test"));
-        persistentTopics = spy(new PersistentTopics());
+        persistentTopics = spy(PersistentTopics.class);
         persistentTopics.setServletContext(new MockServletContext());
         persistentTopics.setPulsar(pulsar);
 
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminTest.java 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminTest.java
index f807016..c19aa86 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/AdminTest.java
@@ -131,17 +131,17 @@ public class AdminTest extends 
MockedPulsarServiceBaseTest {
 
         configurationCache = pulsar.getConfigurationCache();
 
-        clusters = spy(new Clusters());
+        clusters = spy(Clusters.class);
         clusters.setPulsar(pulsar);
         doReturn("test").when(clusters).clientAppId();
         doNothing().when(clusters).validateSuperUserAccess();
 
-        properties = spy(new Properties());
+        properties = spy(Properties.class);
         properties.setPulsar(pulsar);
         doReturn("test").when(properties).clientAppId();
         doNothing().when(properties).validateSuperUserAccess();
 
-        namespaces = spy(new Namespaces());
+        namespaces = spy(Namespaces.class);
         namespaces.setServletContext(new MockServletContext());
         namespaces.setPulsar(pulsar);
         doReturn(mockZooKeeper).when(namespaces).localZk();
@@ -151,7 +151,7 @@ public class AdminTest extends MockedPulsarServiceBaseTest {
         
doNothing().when(namespaces).validateAdminAccessForTenant("other-tenant");
         
doNothing().when(namespaces).validateAdminAccessForTenant("new-property");
 
-        brokers = spy(new Brokers());
+        brokers = spy(Brokers.class);
         brokers.setPulsar(pulsar);
         doReturn("test").when(brokers).clientAppId();
         doNothing().when(brokers).validateSuperUserAccess();
@@ -159,7 +159,7 @@ public class AdminTest extends MockedPulsarServiceBaseTest {
         uriField = PulsarWebResource.class.getDeclaredField("uri");
         uriField.setAccessible(true);
 
-        persistentTopics = spy(new PersistentTopics());
+        persistentTopics = spy(PersistentTopics.class);
         persistentTopics.setServletContext(new MockServletContext());
         persistentTopics.setPulsar(pulsar);
         doReturn(mockZooKeeper).when(persistentTopics).localZk();
@@ -170,11 +170,11 @@ public class AdminTest extends 
MockedPulsarServiceBaseTest {
         
doNothing().when(persistentTopics).validateAdminAccessForTenant("other-tenant");
         
doNothing().when(persistentTopics).validateAdminAccessForTenant("prop-xyz");
 
-        resourceQuotas = spy(new ResourceQuotas());
+        resourceQuotas = spy(ResourceQuotas.class);
         resourceQuotas.setServletContext(new MockServletContext());
         resourceQuotas.setPulsar(pulsar);
 
-        brokerStats = spy(new BrokerStats());
+        brokerStats = spy(BrokerStats.class);
         brokerStats.setServletContext(new MockServletContext());
         brokerStats.setPulsar(pulsar);
 
@@ -183,7 +183,7 @@ public class AdminTest extends MockedPulsarServiceBaseTest {
         doReturn("test").when(persistentTopics).clientAppId();
         
doReturn(mock(AuthenticationDataHttps.class)).when(persistentTopics).clientAuthData();
 
-        schemasResource = spy(new SchemasResource());
+        schemasResource = spy(SchemasResource.class);
         schemasResource.setServletContext(new MockServletContext());
         schemasResource.setPulsar(pulsar);
     }
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/NamespacesTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/NamespacesTest.java
index 1f840b1..ed04b50 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/NamespacesTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/NamespacesTest.java
@@ -158,7 +158,7 @@ public class NamespacesTest extends 
MockedPulsarServiceBaseTest {
         conf.setClusterName(testLocalCluster);
         super.internalSetup();
 
-        namespaces = spy(new Namespaces());
+        namespaces = spy(Namespaces.class);
         namespaces.setServletContext(new MockServletContext());
         namespaces.setPulsar(pulsar);
         doReturn(mockZooKeeper).when(namespaces).localZk();
@@ -1102,7 +1102,7 @@ public class NamespacesTest extends 
MockedPulsarServiceBaseTest {
         ownership.setAccessible(true);
         ownership.set(pulsar.getNamespaceService(), MockOwnershipCache);
         TopicName topicName = 
TopicName.get(testNs.getPersistentTopicName("my-topic"));
-        PersistentTopics topics = spy(new PersistentTopics());
+        PersistentTopics topics = spy(PersistentTopics.class);
         topics.setServletContext(new MockServletContext());
         topics.setPulsar(pulsar);
         doReturn(false).when(topics).isRequestHttps();
@@ -1267,7 +1267,7 @@ public class NamespacesTest extends 
MockedPulsarServiceBaseTest {
         admin.tenants().deleteTenant("my-tenants");
     }
 
-    class MockLedgerOffloader implements LedgerOffloader {
+    public static class MockLedgerOffloader implements LedgerOffloader {
         ConcurrentHashMap<Long, UUID> offloads = new ConcurrentHashMap<Long, 
UUID>();
         ConcurrentHashMap<Long, UUID> deletes = new ConcurrentHashMap<Long, 
UUID>();
 
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/PersistentTopicsTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/PersistentTopicsTest.java
index 5bc55a3..8cb5b76 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/PersistentTopicsTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/PersistentTopicsTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.admin;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyString;
@@ -110,7 +111,7 @@ public class PersistentTopicsTest extends 
MockedPulsarServiceBaseTest {
     @BeforeMethod
     protected void setup() throws Exception {
         super.internalSetup();
-        persistentTopics = spy(new PersistentTopics());
+        persistentTopics = spy(PersistentTopics.class);
         persistentTopics.setServletContext(new MockServletContext());
         persistentTopics.setPulsar(pulsar);
         doReturn(mockZooKeeper).when(persistentTopics).localZk();
@@ -121,7 +122,7 @@ public class PersistentTopicsTest extends 
MockedPulsarServiceBaseTest {
         
doNothing().when(persistentTopics).validateAdminAccessForTenant(this.testTenant);
         
doReturn(mock(AuthenticationDataHttps.class)).when(persistentTopics).clientAuthData();
 
-        nonPersistentTopic = spy(new NonPersistentTopics());
+        nonPersistentTopic = spy(NonPersistentTopics.class);
         nonPersistentTopic.setServletContext(new MockServletContext());
         nonPersistentTopic.setPulsar(pulsar);
         doReturn(mockZooKeeper).when(nonPersistentTopic).localZk();
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/ResourceGroupsTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/ResourceGroupsTest.java
index 40d82ca..bf02e00 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/ResourceGroupsTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/ResourceGroupsTest.java
@@ -52,7 +52,7 @@ public class ResourceGroupsTest extends 
MockedPulsarServiceBaseTest  {
     @Override
     protected void setup() throws Exception {
         super.internalSetup();
-        resourcegroups = spy(new ResourceGroups());
+        resourcegroups = spy(ResourceGroups.class);
         resourcegroups.setServletContext(new MockServletContext());
         resourcegroups.setPulsar(pulsar);
         doReturn(mockZooKeeper).when(resourcegroups).localZk();
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/auth/MockedPulsarServiceBaseTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/auth/MockedPulsarServiceBaseTest.java
index 0726a5d..a982831 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/auth/MockedPulsarServiceBaseTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/auth/MockedPulsarServiceBaseTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.auth;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -316,7 +317,7 @@ public abstract class MockedPulsarServiceBaseTest extends 
TestRetrySupport {
         
doReturn(createLocalMetadataStore()).when(pulsar).createLocalMetadataStore();
         
doReturn(createConfigurationMetadataStore()).when(pulsar).createConfigurationMetadataStore();
 
-        Supplier<NamespaceService> namespaceServiceSupplier = () -> spy(new 
NamespaceService(pulsar));
+        Supplier<NamespaceService> namespaceServiceSupplier = () -> 
spyWithClassAndConstructorArgs(NamespaceService.class, pulsar);
         
doReturn(namespaceServiceSupplier).when(pulsar).getNamespaceServiceProvider();
 
         
doReturn(sameThreadOrderedSafeExecutor).when(pulsar).getOrderedExecutor();
@@ -380,7 +381,7 @@ public abstract class MockedPulsarServiceBaseTest extends 
TestRetrySupport {
     }
 
     public static NonClosableMockBookKeeper 
createMockBookKeeper(OrderedExecutor executor) throws Exception {
-        return spy(new NonClosableMockBookKeeper(executor));
+        return spyWithClassAndConstructorArgs(NonClosableMockBookKeeper.class, 
executor);
     }
 
     // Prevent the MockBookKeeper instance from being closed when the broker 
is restarted within a test
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LeaderElectionServiceTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LeaderElectionServiceTest.java
index faf5125..5559a61 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LeaderElectionServiceTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LeaderElectionServiceTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.loadbalance;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import com.google.common.collect.Sets;
 import java.util.Optional;
 import java.util.concurrent.TimeUnit;
@@ -75,7 +76,7 @@ public class LeaderElectionServiceTest {
         config.setAdvertisedAddress("localhost");
         config.setZookeeperServers("127.0.0.1" + ":" + 
bkEnsemble.getZookeeperPort());
         @Cleanup
-        PulsarService pulsar = Mockito.spy(new MockPulsarService(config));
+        PulsarService pulsar = 
spyWithClassAndConstructorArgs(MockPulsarService.class, config);
         pulsar.start();
 
         // mock pulsar.getLeaderElectionService() in a thread safe way
@@ -133,7 +134,7 @@ public class LeaderElectionServiceTest {
         }
     }
 
-    private static class MockPulsarService extends PulsarService {
+    public static class MockPulsarService extends PulsarService {
 
         public MockPulsarService(ServiceConfiguration config) {
             super(config);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/SimpleLoadManagerImplTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/SimpleLoadManagerImplTest.java
index 10ddc23..72af7b8 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/SimpleLoadManagerImplTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/SimpleLoadManagerImplTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.loadbalance;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.Mockito.atLeastOnce;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
@@ -121,7 +122,7 @@ public class SimpleLoadManagerImplTest {
         bkEnsemble.start();
 
         // Start broker 1
-        ServiceConfiguration config1 = spy(new ServiceConfiguration());
+        ServiceConfiguration config1 = spy(ServiceConfiguration.class);
         config1.setClusterName("use");
         config1.setWebServicePort(Optional.of(0));
         config1.setZookeeperServers("127.0.0.1" + ":" + 
bkEnsemble.getZookeeperPort());
@@ -379,7 +380,7 @@ public class SimpleLoadManagerImplTest {
 
     @Test(enabled = true)
     public void testDoLoadShedding() throws Exception {
-        SimpleLoadManagerImpl loadManager = spy(new 
SimpleLoadManagerImpl(pulsar1));
+        SimpleLoadManagerImpl loadManager = 
spyWithClassAndConstructorArgs(SimpleLoadManagerImpl.class, pulsar1);
         PulsarResourceDescription rd = new PulsarResourceDescription();
         rd.put("memory", new ResourceUsage(1024, 4096));
         rd.put("cpu", new ResourceUsage(10, 100));
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/lookup/http/HttpTopicLookupv2Test.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/lookup/http/HttpTopicLookupv2Test.java
index 0f2977e..bc33132 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/lookup/http/HttpTopicLookupv2Test.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/lookup/http/HttpTopicLookupv2Test.java
@@ -88,7 +88,7 @@ public class HttpTopicLookupv2Test {
         clustersListCache = mock(ZooKeeperChildrenCache.class);
         clustersCache = mock(ZooKeeperDataCache.class);
         policiesCache = mock(ZooKeeperDataCache.class);
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setClusterName("use");
         clusters = new TreeSet<>();
         clusters.add("use");
@@ -119,7 +119,7 @@ public class HttpTopicLookupv2Test {
     @Test
     public void crossColoLookup() throws Exception {
 
-        TopicLookup destLookup = spy(new TopicLookup());
+        TopicLookup destLookup = spy(TopicLookup.class);
         doReturn(false).when(destLookup).isRequestHttps();
         destLookup.setPulsar(pulsar);
         doReturn("null").when(destLookup).clientAppId();
@@ -141,7 +141,7 @@ public class HttpTopicLookupv2Test {
         WebApplicationException wae = (WebApplicationException) arg.getValue();
         assertEquals(wae.getResponse().getStatus(), 
Status.TEMPORARY_REDIRECT.getStatusCode());
     }
-    
+
     
     @Test
     public void testNotEnoughLookupPermits() throws Exception {
@@ -149,7 +149,7 @@ public class HttpTopicLookupv2Test {
         BrokerService brokerService = pulsar.getBrokerService();
         doReturn(new 
Semaphore(0)).when(brokerService).getLookupRequestSemaphore();
 
-        TopicLookup destLookup = spy(new TopicLookup());
+        TopicLookup destLookup = spy(TopicLookup.class);
         doReturn(false).when(destLookup).isRequestHttps();
         destLookup.setPulsar(pulsar);
         doReturn("null").when(destLookup).clientAppId();
@@ -187,7 +187,7 @@ public class HttpTopicLookupv2Test {
         doReturn(Optional.of(policies2)).when(policiesCache)
                 .get(AdminResource.path(POLICIES, property, cluster, ns2));
 
-        TopicLookup destLookup = spy(new TopicLookup());
+        TopicLookup destLookup = spy(TopicLookup.class);
         doReturn(false).when(destLookup).isRequestHttps();
         destLookup.setPulsar(pulsar);
         doReturn("null").when(destLookup).clientAppId();
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/namespace/OwnerShipForCurrentServerTestBase.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/namespace/OwnerShipForCurrentServerTestBase.java
index 2efbb20..e8cccc4 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/namespace/OwnerShipForCurrentServerTestBase.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/namespace/OwnerShipForCurrentServerTestBase.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.namespace;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import com.google.common.util.concurrent.MoreExecutors;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 import io.netty.channel.EventLoopGroup;
@@ -120,7 +121,7 @@ public class OwnerShipForCurrentServerTestBase {
             conf.setWebServicePortTls(Optional.of(0));
             serviceConfigurationList.add(conf);
 
-            PulsarService pulsar = spy(new PulsarService(conf));
+            PulsarService pulsar = 
spyWithClassAndConstructorArgs(PulsarService.class, conf);
 
             setupBrokerMocks(pulsar);
             pulsar.start();
@@ -135,7 +136,7 @@ public class OwnerShipForCurrentServerTestBase {
         MockZooKeeperSession mockZooKeeperSession = 
MockZooKeeperSession.newInstance(mockZooKeeper);
         doReturn(new 
ZKMetadataStore(mockZooKeeperSession)).when(pulsar).createLocalMetadataStore();
         doReturn(new 
ZKMetadataStore(mockZooKeeperSession)).when(pulsar).createConfigurationMetadataStore();
-        Supplier<NamespaceService> namespaceServiceSupplier = () -> spy(new 
NamespaceService(pulsar));
+        Supplier<NamespaceService> namespaceServiceSupplier = () -> 
spyWithClassAndConstructorArgs(NamespaceService.class, pulsar);
         
doReturn(namespaceServiceSupplier).when(pulsar).getNamespaceServiceProvider();
 
         SameThreadOrderedSafeExecutor executor = new 
SameThreadOrderedSafeExecutor();
@@ -159,7 +160,7 @@ public class OwnerShipForCurrentServerTestBase {
     }
 
     public static NonClosableMockBookKeeper 
createMockBookKeeper(OrderedExecutor executor) throws Exception {
-        return spy(new NonClosableMockBookKeeper(executor));
+        return spyWithClassAndConstructorArgs(NonClosableMockBookKeeper.class, 
executor);
     }
 
     // Prevent the MockBookKeeper instance from being closed when the broker 
is restarted within a test
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentDispatcherFailoverConsumerTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentDispatcherFailoverConsumerTest.java
index 4b947aa..8a3870b 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentDispatcherFailoverConsumerTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentDispatcherFailoverConsumerTest.java
@@ -18,10 +18,10 @@
  */
 package org.apache.pulsar.broker.service;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.matches;
 import static org.mockito.ArgumentMatchers.same;
-import static org.mockito.Mockito.CALLS_REAL_METHODS;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -29,7 +29,6 @@ import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
-import static org.mockito.Mockito.withSettings;
 import static org.testng.Assert.assertFalse;
 import static org.testng.Assert.assertNull;
 import static org.testng.AssertJUnit.assertEquals;
@@ -119,9 +118,9 @@ public class PersistentDispatcherFailoverConsumerTest {
     @BeforeMethod
     public void setup() throws Exception {
         executor = 
OrderedExecutor.newBuilder().numThreads(1).name("persistent-dispatcher-failover-test").build();
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         svcConfig.setBrokerShutdownTimeoutMs(0L);
-        pulsar = spy(new PulsarService(svcConfig));
+        pulsar = spyWithClassAndConstructorArgs(PulsarService.class, 
svcConfig);
         doReturn(svcConfig).when(pulsar).getConfiguration();
 
         mlFactoryMock = mock(ManagedLedgerFactory.class);
@@ -145,7 +144,7 @@ public class PersistentDispatcherFailoverConsumerTest {
         doReturn(configCacheService).when(pulsar).getConfigurationCache();
         doReturn(zkCache).when(pulsar).getLocalZkCacheService();
 
-        brokerService = spy(new BrokerService(pulsar, eventLoopGroup));
+        brokerService = spyWithClassAndConstructorArgs(BrokerService.class, 
pulsar, eventLoopGroup);
         doReturn(brokerService).when(pulsar).getBrokerService();
 
         consumerChanges = new LinkedBlockingQueue<>();
@@ -171,9 +170,7 @@ public class PersistentDispatcherFailoverConsumerTest {
             return null;
         }).when(channelCtx).writeAndFlush(any(), any());
 
-        serverCnx = mock(ServerCnx.class, withSettings()
-                .useConstructor(pulsar)
-                .defaultAnswer(CALLS_REAL_METHODS));
+        serverCnx = spyWithClassAndConstructorArgs(ServerCnx.class, pulsar);
         doReturn(true).when(serverCnx).isActive();
         doReturn(true).when(serverCnx).isWritable();
         doReturn(new InetSocketAddress("localhost", 
1234)).when(serverCnx).clientAddress();
@@ -182,9 +179,7 @@ public class PersistentDispatcherFailoverConsumerTest {
         doReturn(new PulsarCommandSenderImpl(null, serverCnx))
                 .when(serverCnx).getCommandSender();
 
-        serverCnxWithOldVersion = mock(ServerCnx.class, withSettings()
-                .useConstructor(pulsar)
-                .defaultAnswer(CALLS_REAL_METHODS));
+        serverCnxWithOldVersion = 
spyWithClassAndConstructorArgs(ServerCnx.class, pulsar);
         doReturn(true).when(serverCnxWithOldVersion).isActive();
         doReturn(true).when(serverCnxWithOldVersion).isWritable();
         doReturn(new InetSocketAddress("localhost", 1234))
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentTopicConcurrentTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentTopicConcurrentTest.java
index 7ba35b9..d9e5837 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentTopicConcurrentTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentTopicConcurrentTest.java
@@ -18,14 +18,15 @@
  */
 package org.apache.pulsar.broker.service;
 
-import static org.mockito.Mockito.CALLS_REAL_METHODS;
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.withSettings;
 import static org.testng.Assert.assertFalse;
-
+import com.google.common.collect.Lists;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.nio.NioEventLoopGroup;
 import java.lang.reflect.Method;
 import java.util.Collections;
 import java.util.List;
@@ -34,9 +35,6 @@ import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.CyclicBarrier;
 import java.util.concurrent.Future;
 import java.util.concurrent.atomic.AtomicBoolean;
-
-import io.netty.channel.EventLoopGroup;
-import io.netty.channel.nio.NioEventLoopGroup;
 import lombok.Cleanup;
 import org.apache.bookkeeper.mledger.ManagedCursor;
 import org.apache.bookkeeper.mledger.ManagedLedger;
@@ -53,16 +51,14 @@ import 
org.apache.pulsar.broker.service.persistent.PersistentTopic;
 import org.apache.pulsar.broker.transaction.TransactionTestBase;
 import org.apache.pulsar.common.api.proto.CommandSubscribe;
 import org.apache.pulsar.common.api.proto.CommandSubscribe.InitialPosition;
-import org.apache.pulsar.common.naming.TopicName;
 import org.apache.pulsar.common.naming.NamespaceBundle;
+import org.apache.pulsar.common.naming.TopicName;
 import org.apache.pulsar.common.policies.data.InactiveTopicDeleteMode;
 import org.apache.pulsar.common.util.collections.ConcurrentOpenHashMap;
 import org.apache.zookeeper.ZooKeeper;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.testng.annotations.BeforeMethod;
-
-import com.google.common.collect.Lists;
 import org.testng.annotations.Test;
 
 @Test(groups = "broker")
@@ -83,10 +79,10 @@ public class PersistentTopicConcurrentTest extends 
MockedBookKeeperTestCase {
     @BeforeMethod
     public void setup(Method m) throws Exception {
         super.setUp(m);
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         svcConfig.setBrokerShutdownTimeoutMs(0L);
         @Cleanup
-        PulsarService pulsar = spy(new PulsarService(svcConfig));
+        PulsarService pulsar = 
spyWithClassAndConstructorArgs(PulsarService.class, svcConfig);
         doReturn(svcConfig).when(pulsar).getConfiguration();
 
         @Cleanup(value = "shutdownGracefully")
@@ -103,12 +99,10 @@ public class PersistentTopicConcurrentTest extends 
MockedBookKeeperTestCase {
         ZooKeeper mockZk = TransactionTestBase.createMockZooKeeper();
         doReturn(mockZk).when(pulsar).getZkClient();
 
-        brokerService = spy(new BrokerService(pulsar, eventLoopGroup));
+        brokerService = spyWithClassAndConstructorArgs(BrokerService.class, 
pulsar, eventLoopGroup);
         doReturn(brokerService).when(pulsar).getBrokerService();
 
-        serverCnx = mock(ServerCnx.class, withSettings()
-                .useConstructor(pulsar)
-                .defaultAnswer(CALLS_REAL_METHODS));
+        serverCnx = spyWithClassAndConstructorArgs(ServerCnx.class, pulsar);
         doReturn(true).when(serverCnx).isActive();
 
         NamespaceService nsSvc = mock(NamespaceService.class);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentTopicTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentTopicTest.java
index 0a6c6b4..0480fa0 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentTopicTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/PersistentTopicTest.java
@@ -18,12 +18,12 @@
  */
 package org.apache.pulsar.broker.service;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static 
org.apache.pulsar.broker.auth.MockedPulsarServiceBaseTest.createMockBookKeeper;
 import static 
org.apache.pulsar.broker.auth.MockedPulsarServiceBaseTest.createMockZooKeeper;
 import static 
org.apache.pulsar.broker.cache.ConfigurationCacheService.POLICIES;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyLong;
-import static org.mockito.Mockito.CALLS_REAL_METHODS;
 import static org.mockito.Mockito.anyString;
 import static org.mockito.Mockito.atLeast;
 import static org.mockito.Mockito.doAnswer;
@@ -36,7 +36,6 @@ import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
-import static org.mockito.Mockito.withSettings;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertFalse;
 import static org.testng.Assert.assertNull;
@@ -181,10 +180,10 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
     public void setup() throws Exception {
         eventLoopGroup = new NioEventLoopGroup();
         executor = OrderedExecutor.newBuilder().numThreads(1).build();
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         svcConfig.setAdvertisedAddress("localhost");
         svcConfig.setBrokerShutdownTimeoutMs(0L);
-        pulsar = spy(new PulsarService(svcConfig));
+        pulsar = spyWithClassAndConstructorArgs(PulsarService.class, 
svcConfig);
         doReturn(svcConfig).when(pulsar).getConfiguration();
         doReturn(mock(Compactor.class)).when(pulsar).getCompactor();
 
@@ -221,17 +220,15 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
         doReturn(executor).when(pulsar).getOrderedExecutor();
 
         store = new ZKMetadataStore(mockZk);
-        PulsarResources pulsarResources = spy(new PulsarResources(store, 
store));
-        NamespaceResources nsr = spy(new NamespaceResources(store, 30));
+        PulsarResources pulsarResources = 
spyWithClassAndConstructorArgs(PulsarResources.class, store, store);
+        NamespaceResources nsr = 
spyWithClassAndConstructorArgs(NamespaceResources.class, store, 30);
         doReturn(nsr).when(pulsarResources).getNamespaceResources();
         doReturn(pulsarResources).when(pulsar).getPulsarResources();
 
-        brokerService = spy(new BrokerService(pulsar, eventLoopGroup));
+        brokerService = spyWithClassAndConstructorArgs(BrokerService.class, 
pulsar, eventLoopGroup);
         doReturn(brokerService).when(pulsar).getBrokerService();
 
-        serverCnx = mock(ServerCnx.class, withSettings()
-                .useConstructor(pulsar)
-                .defaultAnswer(CALLS_REAL_METHODS));
+        serverCnx = spyWithClassAndConstructorArgs(ServerCnx.class, pulsar);
         doReturn(true).when(serverCnx).isActive();
         doReturn(true).when(serverCnx).isWritable();
         doReturn(new InetSocketAddress("localhost", 
1234)).when(serverCnx).clientAddress();
@@ -372,7 +369,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
 
     @Test
     public void testDispatcherMultiConsumerReadFailed() throws Exception {
-        PersistentTopic topic = spy(new PersistentTopic(successTopicName, 
ledgerMock, brokerService));
+        PersistentTopic topic = 
spyWithClassAndConstructorArgs(PersistentTopic.class, successTopicName, 
ledgerMock, brokerService);
         ManagedCursor cursor = mock(ManagedCursor.class);
         when(cursor.getName()).thenReturn("cursor");
         PersistentDispatcherMultipleConsumers dispatcher = new 
PersistentDispatcherMultipleConsumers(topic, cursor, null);
@@ -382,7 +379,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
 
     @Test
     public void testDispatcherSingleConsumerReadFailed() throws Exception {
-        PersistentTopic topic = spy(new PersistentTopic(successTopicName, 
ledgerMock, brokerService));
+        PersistentTopic topic = 
spyWithClassAndConstructorArgs(PersistentTopic.class, successTopicName, 
ledgerMock, brokerService);
         ManagedCursor cursor = mock(ManagedCursor.class);
         when(cursor.getName()).thenReturn("cursor");
         PersistentDispatcherSingleActiveConsumer dispatcher = new 
PersistentDispatcherSingleActiveConsumer(cursor,
@@ -579,7 +576,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
     @Test
     public void testMaxProducersForBroker() throws Exception {
         // set max clients
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(2).when(svcConfig).getMaxProducersPerTopic();
         doReturn(svcConfig).when(pulsar).getConfiguration();
         testMaxProducers();
@@ -587,7 +584,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
 
     @Test
     public void testMaxProducersForNamespace() throws Exception {
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(svcConfig).when(pulsar).getConfiguration();
         // set max clients
         Policies policies = new Policies();
@@ -603,9 +600,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
         final String producerNameBase = "producer";
         final String role = "appid1";
 
-        ServerCnx cnx = mock(ServerCnx.class, withSettings()
-                .useConstructor(pulsar)
-                .defaultAnswer(CALLS_REAL_METHODS));
+        ServerCnx cnx = spyWithClassAndConstructorArgs(ServerCnx.class, 
pulsar);
         doReturn(true).when(cnx).isActive();
         doReturn(true).when(cnx).isWritable();
         doReturn(new InetSocketAddress(address, 
1234)).when(cnx).clientAddress();
@@ -619,7 +614,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
     @Test
     public void testMaxSameAddressProducers() throws Exception {
         // set max clients
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(2).when(svcConfig).getMaxSameAddressProducersPerTopic();
         doReturn(svcConfig).when(pulsar).getConfiguration();
 
@@ -912,7 +907,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
     @Test
     public void testMaxConsumersSharedForBroker() throws Exception {
         // set max clients
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(2).when(svcConfig).getMaxConsumersPerSubscription();
         doReturn(3).when(svcConfig).getMaxConsumersPerTopic();
         doReturn(svcConfig).when(pulsar).getConfiguration();
@@ -922,7 +917,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
 
     @Test
     public void testMaxConsumersSharedForNamespace() throws Exception {
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(svcConfig).when(pulsar).getConfiguration();
 
         // set max clients
@@ -1007,7 +1002,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
     @Test
     public void testMaxConsumersFailoverForBroker() throws Exception {
         // set max clients
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(2).when(svcConfig).getMaxConsumersPerSubscription();
         doReturn(3).when(svcConfig).getMaxConsumersPerTopic();
         doReturn(svcConfig).when(pulsar).getConfiguration();
@@ -1017,7 +1012,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
 
     @Test
     public void testMaxConsumersFailoverForNamespace() throws Exception {
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(svcConfig).when(pulsar).getConfiguration();
 
         // set max clients
@@ -1036,9 +1031,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
         final String consumerNameBase = "consumer";
         final String role = "appid1";
 
-        ServerCnx cnx = mock(ServerCnx.class, withSettings()
-                .useConstructor(pulsar)
-                .defaultAnswer(CALLS_REAL_METHODS));
+        ServerCnx cnx = spyWithClassAndConstructorArgs(ServerCnx.class, 
pulsar);
         doReturn(true).when(cnx).isActive();
         doReturn(true).when(cnx).isWritable();
         doReturn(new InetSocketAddress(address, 
1234)).when(cnx).clientAddress();
@@ -1052,7 +1045,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
     @Test
     public void testMaxSameAddressConsumers() throws Exception {
         // set max clients
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(2).when(svcConfig).getMaxSameAddressConsumersPerTopic();
         doReturn(svcConfig).when(pulsar).getConfiguration();
 
@@ -2090,13 +2083,13 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
 
         ConcurrentOpenHashMap<String, PersistentSubscription> subscriptions = 
new ConcurrentOpenHashMap<>(16, 1);
         // This subscription is connected by consumer.
-        PersistentSubscription nonDeletableSubscription1 = spy(new 
PersistentSubscription(topic, "nonDeletableSubscription1", cursorMock, false));
+        PersistentSubscription nonDeletableSubscription1 = 
spyWithClassAndConstructorArgs(PersistentSubscription.class, topic, 
"nonDeletableSubscription1", cursorMock, false);
         subscriptions.put(nonDeletableSubscription1.getName(), 
nonDeletableSubscription1);
         // This subscription is not connected by consumer.
-        PersistentSubscription deletableSubscription1 = spy(new 
PersistentSubscription(topic, "deletableSubscription1", cursorMock, false));
+        PersistentSubscription deletableSubscription1 = 
spyWithClassAndConstructorArgs(PersistentSubscription.class, topic, 
"deletableSubscription1", cursorMock, false);
         subscriptions.put(deletableSubscription1.getName(), 
deletableSubscription1);
         // This subscription is replicated.
-        PersistentSubscription nonDeletableSubscription2 = spy(new 
PersistentSubscription(topic, "nonDeletableSubscription2", cursorMock, true));
+        PersistentSubscription nonDeletableSubscription2 = 
spyWithClassAndConstructorArgs(PersistentSubscription.class, topic, 
"nonDeletableSubscription2", cursorMock, true);
         subscriptions.put(nonDeletableSubscription2.getName(), 
nonDeletableSubscription2);
 
         Field field = topic.getClass().getDeclaredField("subscriptions");
@@ -2115,7 +2108,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
                 .get(AdminResource.path(POLICIES, 
TopicName.get(successTopicName).getNamespace())))
                 .thenReturn(Optional.of(new Policies()));
 
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(5).when(svcConfig).getSubscriptionExpirationTimeMinutes();
         doReturn(svcConfig).when(pulsar).getConfiguration();
 
@@ -2130,7 +2123,7 @@ public class PersistentTopicTest extends 
MockedBookKeeperTestCase {
 
     @Test
     public void testTopicFencingTimeout() throws Exception {
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         doReturn(svcConfig).when(pulsar).getConfiguration();
         PersistentTopic topic = new PersistentTopic(successTopicName, 
ledgerMock, brokerService);
 
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/ServerCnxTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/ServerCnxTest.java
index 63347a3..ff9c188 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/ServerCnxTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/ServerCnxTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.service;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static 
org.apache.pulsar.broker.auth.MockedPulsarServiceBaseTest.createMockBookKeeper;
 import static 
org.apache.pulsar.broker.auth.MockedPulsarServiceBaseTest.createMockZooKeeper;
 import static 
org.apache.pulsar.broker.cache.ConfigurationCacheService.POLICIES;
@@ -155,9 +156,9 @@ public class ServerCnxTest {
     public void setup() throws Exception {
         eventLoopGroup = new NioEventLoopGroup();
         executor = OrderedExecutor.newBuilder().numThreads(1).build();
-        svcConfig = spy(new ServiceConfiguration());
+        svcConfig = spy(ServiceConfiguration.class);
         svcConfig.setBrokerShutdownTimeoutMs(0L);
-        pulsar = spy(new PulsarService(svcConfig));
+        pulsar = spyWithClassAndConstructorArgs(PulsarService.class, 
svcConfig);
         doReturn(new 
DefaultSchemaRegistryService()).when(pulsar).getSchemaRegistryService();
 
         svcConfig.setKeepAliveIntervalSeconds(inSec(1, TimeUnit.SECONDS));
@@ -189,7 +190,7 @@ public class ServerCnxTest {
         doReturn(configCacheService).when(pulsar).getConfigurationCache();
         doReturn(zkCache).when(pulsar).getLocalZkCacheService();
 
-        brokerService = spy(new BrokerService(pulsar, eventLoopGroup));
+        brokerService = spyWithClassAndConstructorArgs(BrokerService.class, 
pulsar, eventLoopGroup);
         BrokerInterceptor interceptor = mock(BrokerInterceptor.class);
         doReturn(interceptor).when(brokerService).getInterceptor();
         doReturn(brokerService).when(pulsar).getBrokerService();
@@ -515,13 +516,14 @@ public class ServerCnxTest {
         doReturn(zkDataCache).when(configCacheService).policiesCache();
         
doReturn(CompletableFuture.completedFuture(Optional.empty())).when(zkDataCache).getAsync(matches(".*nonexistent.*"));
 
-        AuthorizationService authorizationService = spy(new 
AuthorizationService(svcConfig, configCacheService));
+        AuthorizationService authorizationService = 
spyWithClassAndConstructorArgs(AuthorizationService.class, svcConfig, 
configCacheService);
         
doReturn(authorizationService).when(brokerService).getAuthorizationService();
         doReturn(true).when(brokerService).isAuthorizationEnabled();
         svcConfig.setAuthorizationEnabled(true);
         Field providerField = 
AuthorizationService.class.getDeclaredField("provider");
         providerField.setAccessible(true);
-        PulsarAuthorizationProvider authorizationProvider = spy(new 
PulsarAuthorizationProvider(svcConfig, configCacheService));
+        PulsarAuthorizationProvider authorizationProvider = 
spyWithClassAndConstructorArgs(PulsarAuthorizationProvider.class, svcConfig,
+                configCacheService);
         providerField.set(authorizationService, authorizationProvider);
         
doReturn(CompletableFuture.completedFuture(false)).when(authorizationProvider).isSuperUser(Mockito.anyString(),
 Mockito.any(), Mockito.any());
 
@@ -547,10 +549,11 @@ public class ServerCnxTest {
     @Test(timeOut = 30000)
     public void testClusterAccess() throws Exception {
         svcConfig.setAuthorizationEnabled(true);
-        AuthorizationService authorizationService = spy(new 
AuthorizationService(svcConfig, configCacheService));
+        AuthorizationService authorizationService = 
spyWithClassAndConstructorArgs(AuthorizationService.class, svcConfig, 
configCacheService);
         Field providerField = 
AuthorizationService.class.getDeclaredField("provider");
         providerField.setAccessible(true);
-        PulsarAuthorizationProvider authorizationProvider = spy(new 
PulsarAuthorizationProvider(svcConfig, configCacheService));
+        PulsarAuthorizationProvider authorizationProvider = 
spyWithClassAndConstructorArgs(PulsarAuthorizationProvider.class, svcConfig,
+                configCacheService);
         providerField.set(authorizationService, authorizationProvider);
         
doReturn(authorizationService).when(brokerService).getAuthorizationService();
         doReturn(true).when(brokerService).isAuthorizationEnabled();
@@ -577,12 +580,12 @@ public class ServerCnxTest {
 
     @Test(timeOut = 30000)
     public void testNonExistentTopicSuperUserAccess() throws Exception {
-        AuthorizationService authorizationService = spy(new 
AuthorizationService(svcConfig, configCacheService));
+        AuthorizationService authorizationService = 
spyWithClassAndConstructorArgs(AuthorizationService.class, svcConfig, 
configCacheService);
         
doReturn(authorizationService).when(brokerService).getAuthorizationService();
         doReturn(true).when(brokerService).isAuthorizationEnabled();
         Field providerField = 
AuthorizationService.class.getDeclaredField("provider");
         providerField.setAccessible(true);
-        PulsarAuthorizationProvider authorizationProvider = spy(new 
PulsarAuthorizationProvider(svcConfig, configCacheService));
+        PulsarAuthorizationProvider authorizationProvider = 
spyWithClassAndConstructorArgs(PulsarAuthorizationProvider.class, svcConfig, 
configCacheService);
         providerField.set(authorizationService, authorizationProvider);
         
doReturn(CompletableFuture.completedFuture(true)).when(authorizationProvider).isSuperUser(Mockito.anyString(),
 Mockito.any(), Mockito.any());
 
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/TransactionMarkerDeleteTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/TransactionMarkerDeleteTest.java
index d6e9c73..4527798 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/TransactionMarkerDeleteTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/TransactionMarkerDeleteTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.service;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -87,8 +88,8 @@ public class TransactionMarkerDeleteTest extends 
BrokerTestBase{
         doReturn(false).when(configuration).isTransactionCoordinatorEnabled();
         doReturn(managedLedger).when(topic).getManagedLedger();
         ManagedCursor cursor = managedLedger.openCursor("test");
-        PersistentSubscription persistentSubscription = spy(new 
PersistentSubscription(topic, "test",
-                cursor, false));
+        PersistentSubscription persistentSubscription = 
spyWithClassAndConstructorArgs(PersistentSubscription.class, topic, "test",
+                cursor, false);
         Position position = managedLedger.addEntry("test".getBytes());
         
persistentSubscription.acknowledgeMessage(Collections.singletonList(position),
                 AckType.Individual, Collections.emptyMap());
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/persistent/MessageDuplicationTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/persistent/MessageDuplicationTest.java
index 1777a0a..56f833f 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/persistent/MessageDuplicationTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/persistent/MessageDuplicationTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.service.persistent;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.EventLoopGroup;
 import lombok.extern.slf4j.Slf4j;
@@ -73,7 +74,7 @@ public class MessageDuplicationTest {
         doReturn(serviceConfiguration).when(pulsarService).getConfiguration();
         PersistentTopic persistentTopic = mock(PersistentTopic.class);
         ManagedLedger managedLedger = mock(ManagedLedger.class);
-        MessageDeduplication messageDeduplication = spy(new 
MessageDeduplication(pulsarService, persistentTopic, managedLedger));
+        MessageDeduplication messageDeduplication = 
spyWithClassAndConstructorArgs(MessageDeduplication.class, pulsarService, 
persistentTopic, managedLedger);
         doReturn(true).when(messageDeduplication).isEnabled();
 
         String producerName1 = "producer1";
@@ -166,7 +167,7 @@ public class MessageDuplicationTest {
         
serviceConfiguration.setBrokerDeduplicationProducerInactivityTimeoutMinutes(1);
 
         doReturn(serviceConfiguration).when(pulsarService).getConfiguration();
-        MessageDeduplication messageDeduplication = spy(new 
MessageDeduplication(pulsarService, topic, managedLedger));
+        MessageDeduplication messageDeduplication = 
spyWithClassAndConstructorArgs(MessageDeduplication.class, pulsarService, 
topic, managedLedger);
         doReturn(true).when(messageDeduplication).isEnabled();
 
         Topic.PublishContext publishContext = mock(Topic.PublishContext.class);
@@ -243,7 +244,7 @@ public class MessageDuplicationTest {
         doReturn(eventLoopGroup).when(brokerService).executor();
         doReturn(pulsarService).when(brokerService).pulsar();
 
-        PersistentTopic persistentTopic = spy(new PersistentTopic("topic-1", 
brokerService, managedLedger, messageDeduplication));
+        PersistentTopic persistentTopic = 
spyWithClassAndConstructorArgs(PersistentTopic.class, "topic-1", brokerService, 
managedLedger, messageDeduplication);
 
         String producerName1 = "producer1";
         ByteBuf byteBuf1 = getMessage(producerName1, 0);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/persistent/PersistentSubscriptionTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/persistent/PersistentSubscriptionTest.java
index 884d2a0..c7f068c 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/persistent/PersistentSubscriptionTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/service/persistent/PersistentSubscriptionTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.service.persistent;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static 
org.apache.pulsar.broker.auth.MockedPulsarServiceBaseTest.createMockBookKeeper;
 import static 
org.apache.pulsar.broker.auth.MockedPulsarServiceBaseTest.createMockZooKeeper;
 import static org.mockito.ArgumentMatchers.any;
@@ -115,10 +116,10 @@ public class PersistentSubscriptionTest {
         executor = 
OrderedExecutor.newBuilder().numThreads(1).name("persistent-subscription-test").build();
         eventLoopGroup = new NioEventLoopGroup();
 
-        ServiceConfiguration svcConfig = spy(new ServiceConfiguration());
+        ServiceConfiguration svcConfig = spy(ServiceConfiguration.class);
         svcConfig.setBrokerShutdownTimeoutMs(0L);
         svcConfig.setTransactionCoordinatorEnabled(true);
-        pulsarMock = spy(new PulsarService(svcConfig));
+        pulsarMock = spyWithClassAndConstructorArgs(PulsarService.class, 
svcConfig);
         doReturn(new 
InMemTransactionBufferProvider()).when(pulsarMock).getTransactionBufferProvider();
         doReturn(new TransactionPendingAckStoreProvider() {
             @Override
@@ -192,7 +193,7 @@ public class PersistentSubscriptionTest {
         doReturn(zkPoliciesDataCacheMock).when(zkCacheMock).policiesCache();
         doReturn(zkCacheMock).when(pulsarMock).getLocalZkCacheService();
 
-        brokerMock = spy(new BrokerService(pulsarMock, eventLoopGroup));
+        brokerMock = spyWithClassAndConstructorArgs(BrokerService.class, 
pulsarMock, eventLoopGroup);
         doNothing().when(brokerMock).unloadNamespaceBundlesGracefully();
         doReturn(brokerMock).when(pulsarMock).getBrokerService();
 
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/TransactionTestBase.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/TransactionTestBase.java
index 0a694c8..0e24f08 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/TransactionTestBase.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/TransactionTestBase.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.transaction;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.spy;
@@ -140,7 +141,7 @@ public abstract class TransactionTestBase extends 
TestRetrySupport {
             conf.setTopicLevelPoliciesEnabled(true);
             serviceConfigurationList.add(conf);
 
-            PulsarService pulsar = spy(new PulsarService(conf));
+            PulsarService pulsar = 
spyWithClassAndConstructorArgs(PulsarService.class, conf);
 
             setupBrokerMocks(pulsar);
             pulsar.start();
@@ -156,7 +157,7 @@ public abstract class TransactionTestBase extends 
TestRetrySupport {
         MockZooKeeperSession mockZooKeeperSession = 
MockZooKeeperSession.newInstance(mockZooKeeper);
         doReturn(new 
ZKMetadataStore(mockZooKeeperSession)).when(pulsar).createLocalMetadataStore();
         doReturn(new 
ZKMetadataStore(mockZooKeeperSession)).when(pulsar).createConfigurationMetadataStore();
-        Supplier<NamespaceService> namespaceServiceSupplier = () -> spy(new 
NamespaceService(pulsar));
+        Supplier<NamespaceService> namespaceServiceSupplier = () -> 
spyWithClassAndConstructorArgs(NamespaceService.class, pulsar);
         
doReturn(namespaceServiceSupplier).when(pulsar).getNamespaceServiceProvider();
 
         SameThreadOrderedSafeExecutor executor = new 
SameThreadOrderedSafeExecutor();
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/coordinator/TransactionMetaStoreTestBase.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/coordinator/TransactionMetaStoreTestBase.java
index 0457907..aba5b04 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/coordinator/TransactionMetaStoreTestBase.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/transaction/coordinator/TransactionMetaStoreTestBase.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.broker.transaction.coordinator;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import java.util.Optional;
 import org.apache.pulsar.PulsarTransactionCoordinatorMetadataSetup;
 import org.apache.pulsar.broker.PulsarService;
@@ -76,7 +77,7 @@ public abstract class TransactionMetaStoreTestBase extends 
TestRetrySupport {
             config.setTransactionCoordinatorEnabled(true);
             configurations[i] = config;
 
-            pulsarServices[i] = Mockito.spy(new PulsarService(config));
+            pulsarServices[i] = 
spyWithClassAndConstructorArgs(PulsarService.class, config);
             pulsarServices[i].start();
 
             pulsarAdmins[i] = PulsarAdmin.builder()
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/web/WebServiceTest.java 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/web/WebServiceTest.java
index 48bf602..3dacdeb 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/web/WebServiceTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/web/WebServiceTest.java
@@ -18,8 +18,8 @@
  */
 package org.apache.pulsar.broker.web;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertTrue;
 import static org.testng.Assert.fail;
@@ -390,7 +390,7 @@ public class WebServiceTest {
             config.setHttpRequestsLimitEnabled(true);
             config.setHttpRequestsMaxPerSecond(rateLimit);
         }
-        pulsar = spy(new PulsarService(config));
+        pulsar = spyWithClassAndConstructorArgs(PulsarService.class, config);
      // mock zk
         MockZooKeeper mockZooKeeper = 
MockedPulsarServiceBaseTest.createMockZooKeeper();
         ZooKeeperClientFactory mockZooKeeperClientFactory = new 
ZooKeeperClientFactory() {
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/client/api/ClientDeduplicationFailureTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/client/api/ClientDeduplicationFailureTest.java
index 538bb89..4d7fece 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/client/api/ClientDeduplicationFailureTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/client/api/ClientDeduplicationFailureTest.java
@@ -80,7 +80,7 @@ public class ClientDeduplicationFailureTest {
         bkEnsemble = new LocalBookkeeperEnsemble(3, 0, () -> 0);
         bkEnsemble.start();
 
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setClusterName("use");
         config.setWebServicePort(Optional.of(0));
         config.setZookeeperServers("127.0.0.1" + ":" + 
bkEnsemble.getZookeeperPort());
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/client/api/DispatcherBlockConsumerTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/client/api/DispatcherBlockConsumerTest.java
index 00f52ad..cb1f44b 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/client/api/DispatcherBlockConsumerTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/client/api/DispatcherBlockConsumerTest.java
@@ -18,8 +18,8 @@
  */
 package org.apache.pulsar.client.api;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertNotEquals;
 import static org.testng.Assert.assertNotNull;
@@ -630,7 +630,7 @@ public class DispatcherBlockConsumerTest extends 
ProducerConsumerBase {
         // if broker unload bundle gracefully then cursor metadata recovered 
from zk else from ledger
         if (unloadBundleGracefully) {
             // set clean namespace which will not let broker unload bundle 
gracefully: stop broker
-            Supplier<NamespaceService> namespaceServiceSupplier = () -> 
spy(new NamespaceService(pulsar));
+            Supplier<NamespaceService> namespaceServiceSupplier = () -> 
spyWithClassAndConstructorArgs(NamespaceService.class, pulsar);
             
doReturn(namespaceServiceSupplier).when(pulsar).getNamespaceServiceProvider();
         }
         stopBroker();
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/BrokerClientIntegrationTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/BrokerClientIntegrationTest.java
index d90ecb0..084d951 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/BrokerClientIntegrationTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/BrokerClientIntegrationTest.java
@@ -20,6 +20,7 @@ package org.apache.pulsar.client.impl;
 
 import static java.nio.charset.StandardCharsets.UTF_8;
 import static java.util.UUID.randomUUID;
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static 
org.apache.pulsar.broker.service.BrokerService.BROKER_SERVICE_CONFIGURATION_PATH;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.atLeastOnce;
@@ -890,8 +891,9 @@ public class BrokerClientIntegrationTest extends 
ProducerConsumerBase {
     public void testJsonSchemaProducerConsumerWithSpecifiedReaderAndWriter() 
throws PulsarClientException {
         final String topicName = "persistent://my-property/my-ns/my-topic1";
         ObjectMapper mapper = new ObjectMapper();
-        SchemaReader<TestMessageObject> reader = Mockito.spy(new 
JacksonJsonReader<>(mapper, TestMessageObject.class));
-        SchemaWriter<TestMessageObject> writer = Mockito.spy(new 
JacksonJsonWriter<>(mapper));
+        SchemaReader<TestMessageObject> reader =
+                spyWithClassAndConstructorArgs(JacksonJsonReader.class, 
mapper, TestMessageObject.class);
+        SchemaWriter<TestMessageObject> writer = 
spyWithClassAndConstructorArgs(JacksonJsonWriter.class, mapper);
 
         SchemaDefinition<TestMessageObject> schemaDefinition = new 
SchemaDefinitionBuilderImpl<TestMessageObject>()
                 .withPojo(TestMessageObject.class)
@@ -926,10 +928,10 @@ public class BrokerClientIntegrationTest extends 
ProducerConsumerBase {
     private static final class TestMessageObject{
         private String value;
     }
-    
+
     /**
      * It validates pooled message consumption for batch and non-batch 
messages.
-     * 
+     *
      * @throws Exception
      */
     @Test(dataProvider = "booleanFlagProvider")
@@ -980,10 +982,10 @@ public class BrokerClientIntegrationTest extends 
ProducerConsumerBase {
         consumer.close();
         producer.close();
     }
-    
+
     /**
      * It verifies that expiry/redelivery of messages relesaes the messages 
without leak.
-     * 
+     *
      * @param isBatchingEnabled
      * @throws Exception
      */
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/ConnectionPoolTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/ConnectionPoolTest.java
index 1e97550..0193f59 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/ConnectionPoolTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/client/impl/ConnectionPoolTest.java
@@ -18,6 +18,7 @@
  */
 package org.apache.pulsar.client.impl;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import com.google.common.collect.Lists;
 import io.netty.channel.EventLoopGroup;
 import io.netty.util.concurrent.DefaultThreadFactory;
@@ -58,7 +59,7 @@ public class ConnectionPoolTest extends 
MockedPulsarServiceBaseTest {
     public void testSingleIpAddress() throws Exception {
         ClientConfigurationData conf = new ClientConfigurationData();
         EventLoopGroup eventLoop = EventLoopUtil.newEventLoopGroup(1, false, 
new DefaultThreadFactory("test"));
-        ConnectionPool pool = Mockito.spy(new ConnectionPool(conf, eventLoop));
+        ConnectionPool pool = 
spyWithClassAndConstructorArgs(ConnectionPool.class, conf, eventLoop);
         conf.setServiceUrl(serviceUrl);
         PulsarClientImpl client = new PulsarClientImpl(conf, eventLoop, pool);
 
@@ -78,7 +79,7 @@ public class ConnectionPoolTest extends 
MockedPulsarServiceBaseTest {
 
         ClientConfigurationData conf = new ClientConfigurationData();
         EventLoopGroup eventLoop = EventLoopUtil.newEventLoopGroup(1, false, 
new DefaultThreadFactory("test"));
-        ConnectionPool pool = Mockito.spy(new ConnectionPool(conf, eventLoop));
+        ConnectionPool pool = 
spyWithClassAndConstructorArgs(ConnectionPool.class, conf, eventLoop);
         conf.setServiceUrl(serviceUrl);
         PulsarClientImpl client = new PulsarClientImpl(conf, eventLoop, pool);
 
@@ -101,7 +102,7 @@ public class ConnectionPoolTest extends 
MockedPulsarServiceBaseTest {
         ClientConfigurationData conf = new ClientConfigurationData();
         conf.setConnectionsPerBroker(0);
         EventLoopGroup eventLoop = EventLoopUtil.newEventLoopGroup(8, false, 
new DefaultThreadFactory("test"));
-        ConnectionPool pool = Mockito.spy(new ConnectionPool(conf, eventLoop));
+        ConnectionPool pool = 
spyWithClassAndConstructorArgs(ConnectionPool.class, conf, eventLoop);
 
         InetSocketAddress brokerAddress =
             InetSocketAddress.createUnresolved("127.0.0.1", 
pulsar.getBrokerListenPort().get());
@@ -123,7 +124,7 @@ public class ConnectionPoolTest extends 
MockedPulsarServiceBaseTest {
         ClientConfigurationData conf = new ClientConfigurationData();
         conf.setConnectionsPerBroker(5);
         EventLoopGroup eventLoop = EventLoopUtil.newEventLoopGroup(8, false, 
new DefaultThreadFactory("test"));
-        ConnectionPool pool = Mockito.spy(new ConnectionPool(conf, eventLoop));
+        ConnectionPool pool = 
spyWithClassAndConstructorArgs(ConnectionPool.class, conf, eventLoop);
 
         InetSocketAddress brokerAddress =
             InetSocketAddress.createUnresolved("127.0.0.1", 
pulsar.getBrokerListenPort().get());
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionE2ESecurityTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionE2ESecurityTest.java
index e7173a2..c399cd8 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionE2ESecurityTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionE2ESecurityTest.java
@@ -125,7 +125,7 @@ public class PulsarFunctionE2ESecurityTest {
         bkEnsemble = new LocalBookkeeperEnsemble(3, 0, () -> 0);
         bkEnsemble.start();
 
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setClusterName("use");
         Set<String> superUsers = Sets.newHashSet(ADMIN_SUBJECT);
         config.setSuperUserRoles(superUsers);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionLocalRunTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionLocalRunTest.java
index 232f7dc..8e95bd9 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionLocalRunTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionLocalRunTest.java
@@ -190,7 +190,7 @@ public class PulsarFunctionLocalRunTest {
         bkEnsemble = new LocalBookkeeperEnsemble(3, 0, () -> 0);
         bkEnsemble.start();
 
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setClusterName(CLUSTER);
         Set<String> superUsers = Sets.newHashSet("superUser", "admin");
         config.setSuperUserRoles(superUsers);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionPublishTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionPublishTest.java
index 3b704b6..e9847b0 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionPublishTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarFunctionPublishTest.java
@@ -121,7 +121,7 @@ public class PulsarFunctionPublishTest {
         bkEnsemble = new LocalBookkeeperEnsemble(3, 0, () -> 0);
         bkEnsemble.start();
 
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setClusterName("use");
         Set<String> superUsers = Sets.newHashSet("superUser", "admin");
         config.setSuperUserRoles(superUsers);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarWorkerAssignmentTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarWorkerAssignmentTest.java
index 019ca0b..1b66099 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarWorkerAssignmentTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/functions/worker/PulsarWorkerAssignmentTest.java
@@ -89,7 +89,7 @@ public class PulsarWorkerAssignmentTest {
         bkEnsemble = new LocalBookkeeperEnsemble(3, 0, () -> 0);
         bkEnsemble.start();
 
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setClusterName("use");
         final Set<String> superUsers = Sets.newHashSet("superUser", "admin");
         config.setSuperUserRoles(superUsers);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/io/AbstractPulsarE2ETest.java 
b/pulsar-broker/src/test/java/org/apache/pulsar/io/AbstractPulsarE2ETest.java
index 1df4be1..93cdd79 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/io/AbstractPulsarE2ETest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/io/AbstractPulsarE2ETest.java
@@ -114,7 +114,7 @@ public abstract class AbstractPulsarE2ETest {
         bkEnsemble = new LocalBookkeeperEnsemble(3, 0, () -> 0);
         bkEnsemble.start();
 
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setClusterName("use");
         Set<String> superUsers = Sets.newHashSet("superUser", "admin");
         config.setSuperUserRoles(superUsers);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/io/PulsarFunctionAdminTest.java 
b/pulsar-broker/src/test/java/org/apache/pulsar/io/PulsarFunctionAdminTest.java
index ddb1fb3..ffab0b7 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/io/PulsarFunctionAdminTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/io/PulsarFunctionAdminTest.java
@@ -96,7 +96,7 @@ public class PulsarFunctionAdminTest {
         bkEnsemble = new LocalBookkeeperEnsemble(3, 0, () -> 0);
         bkEnsemble.start();
 
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setClusterName("use");
         Set<String> superUsers = Sets.newHashSet("superUser", "admin");
         config.setSuperUserRoles(superUsers);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/io/PulsarFunctionTlsTest.java 
b/pulsar-broker/src/test/java/org/apache/pulsar/io/PulsarFunctionTlsTest.java
index fcb2a44..31fe8e7 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/io/PulsarFunctionTlsTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/io/PulsarFunctionTlsTest.java
@@ -106,7 +106,7 @@ public class PulsarFunctionTlsTest {
         bkEnsemble = new LocalBookkeeperEnsemble(3, 0, () -> 0);
         bkEnsemble.start();
 
-        config = spy(new ServiceConfiguration());
+        config = spy(ServiceConfiguration.class);
         config.setBrokerShutdownTimeoutMs(0L);
         config.setClusterName("use");
         Set<String> superUsers = Sets.newHashSet("superUser", "admin");
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyAuthenticationTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyAuthenticationTest.java
index 5741a5e..764d4a5 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyAuthenticationTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyAuthenticationTest.java
@@ -19,26 +19,22 @@
 package org.apache.pulsar.websocket.proxy;
 
 import static java.util.concurrent.Executors.newFixedThreadPool;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
-import static org.mockito.ArgumentMatchers.anyString;
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.anyInt;
-
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.doReturn;
 import com.google.common.collect.Sets;
-
 import java.net.URI;
 import java.util.Optional;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
-
 import javax.ws.rs.client.Client;
 import javax.ws.rs.client.ClientBuilder;
 import javax.ws.rs.client.Invocation;
 import javax.ws.rs.client.WebTarget;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
-
 import lombok.Cleanup;
 import org.apache.pulsar.client.api.ProducerConsumerBase;
 import org.apache.pulsar.metadata.impl.ZKMetadataStore;
@@ -86,7 +82,7 @@ public class ProxyAuthenticationTest extends 
ProducerConsumerBase {
             config.setAnonymousUserRole("anonymousUser");
         }
 
-        service = spy(new WebSocketService(config));
+        service = spyWithClassAndConstructorArgs(WebSocketService.class, 
config);
         doReturn(new 
ZKMetadataStore(mockZooKeeperGlobal)).when(service).createMetadataStore(anyString(),
 anyInt());
         proxyServer = new ProxyServer(config);
         WebSocketServiceStarter.start(proxyServer, service);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyAuthorizationTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyAuthorizationTest.java
index 78f3370..561fdd7 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyAuthorizationTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyAuthorizationTest.java
@@ -18,19 +18,16 @@
  */
 package org.apache.pulsar.websocket.proxy;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
 import static org.testng.Assert.assertFalse;
 import static org.testng.Assert.assertTrue;
-
 import com.google.common.collect.Sets;
-
 import java.util.EnumSet;
 import java.util.Optional;
 import java.util.Set;
-
 import org.apache.pulsar.broker.auth.MockedPulsarServiceBaseTest;
 import org.apache.pulsar.broker.authorization.AuthorizationService;
 import org.apache.pulsar.common.naming.TopicName;
@@ -68,7 +65,7 @@ public class ProxyAuthorizationTest extends 
MockedPulsarServiceBaseTest {
         config.setClusterName("c1");
         config.setWebServicePort(Optional.of(0));
         config.setConfigurationStoreServers(GLOBAL_DUMMY_VALUE);
-        service = spy(new WebSocketService(config));
+        service = spyWithClassAndConstructorArgs(WebSocketService.class, 
config);
         doReturn(new 
ZKMetadataStore(mockZooKeeperGlobal)).when(service).createMetadataStore(anyString(),
 anyInt());
         service.start();
     }
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyConfigurationTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyConfigurationTest.java
index 3848d6e..aeeab2a 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyConfigurationTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyConfigurationTest.java
@@ -18,14 +18,12 @@
  */
 package org.apache.pulsar.websocket.proxy;
 
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
 import static org.testng.Assert.assertEquals;
-
 import java.util.Optional;
-
 import org.apache.pulsar.client.api.ProducerConsumerBase;
 import org.apache.pulsar.client.impl.PulsarClientImpl;
 import org.apache.pulsar.metadata.impl.ZKMetadataStore;
@@ -65,7 +63,7 @@ public class ProxyConfigurationTest extends 
ProducerConsumerBase {
     public void configTest(int numIoThreads, int connectionsPerBroker) throws 
Exception {
         config.setWebSocketNumIoThreads(numIoThreads);
         config.setWebSocketConnectionsPerBroker(connectionsPerBroker);
-        WebSocketService service = spy(new WebSocketService(config));
+        WebSocketService service = 
spyWithClassAndConstructorArgs(WebSocketService.class, config);
         doReturn(new 
ZKMetadataStore(mockZooKeeperGlobal)).when(service).createMetadataStore(anyString(),
 anyInt());
         service.start();
 
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeTest.java
index b12f670..177f6f8 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeTest.java
@@ -19,20 +19,20 @@
 package org.apache.pulsar.websocket.proxy;
 
 import static java.util.concurrent.Executors.newFixedThreadPool;
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertFalse;
 import static org.testng.Assert.assertNotNull;
 import static org.testng.Assert.assertTrue;
 import static org.testng.Assert.fail;
-
 import com.google.common.collect.Sets;
 import com.google.gson.Gson;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonPrimitive;
 import com.google.gson.reflect.TypeToken;
-
 import java.net.URI;
 import java.nio.charset.StandardCharsets;
 import java.util.List;
@@ -43,7 +43,6 @@ import java.util.UUID;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
-
 import javax.servlet.http.HttpServletResponse;
 import javax.ws.rs.client.Client;
 import javax.ws.rs.client.ClientBuilder;
@@ -51,7 +50,6 @@ import javax.ws.rs.client.Invocation;
 import javax.ws.rs.client.WebTarget;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
-
 import lombok.Cleanup;
 import org.apache.pulsar.broker.BrokerTestUtil;
 import org.apache.pulsar.client.api.Producer;
@@ -81,8 +79,6 @@ import org.slf4j.LoggerFactory;
 import org.testng.annotations.AfterMethod;
 import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonPrimitive;
 
 @Test(groups = "websocket")
 public class ProxyPublishConsumeTest extends ProducerConsumerBase {
@@ -104,7 +100,7 @@ public class ProxyPublishConsumeTest extends 
ProducerConsumerBase {
         config.setWebServicePort(Optional.of(0));
         config.setClusterName("test");
         config.setConfigurationStoreServers(GLOBAL_DUMMY_VALUE);
-        service = spy(new WebSocketService(config));
+        service = spyWithClassAndConstructorArgs(WebSocketService.class, 
config);
         doReturn(new 
ZKMetadataStore(mockZooKeeperGlobal)).when(service).createMetadataStore(anyString(),
 anyInt());
         proxyServer = new ProxyServer(config);
         WebSocketServiceStarter.start(proxyServer, service);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeTlsTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeTlsTest.java
index 4c82615..b870252 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeTlsTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeTlsTest.java
@@ -19,18 +19,16 @@
 package org.apache.pulsar.websocket.proxy;
 
 import static java.util.concurrent.Executors.newFixedThreadPool;
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
-
 import java.net.URI;
 import java.security.GeneralSecurityException;
 import java.util.Optional;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
-
 import lombok.Cleanup;
 import org.apache.pulsar.client.api.TlsProducerConsumerBase;
 import org.apache.pulsar.client.impl.auth.AuthenticationTls;
@@ -76,7 +74,7 @@ public class ProxyPublishConsumeTlsTest extends 
TlsProducerConsumerBase {
         config.setBrokerClientAuthenticationParameters("tlsCertFile:" + 
TLS_CLIENT_CERT_FILE_PATH + ",tlsKeyFile:" + TLS_CLIENT_KEY_FILE_PATH);
         
config.setBrokerClientAuthenticationPlugin(AuthenticationTls.class.getName());
         config.setConfigurationStoreServers(GLOBAL_DUMMY_VALUE);
-        service = spy(new WebSocketService(config));
+        service = spyWithClassAndConstructorArgs(WebSocketService.class, 
config);
         doReturn(new 
ZKMetadataStore(mockZooKeeperGlobal)).when(service).createMetadataStore(anyString(),
 anyInt());
         proxyServer = new ProxyServer(config);
         WebSocketServiceStarter.start(proxyServer, service);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeWithoutZKTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeWithoutZKTest.java
index 485f23b..1fb1264 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeWithoutZKTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/ProxyPublishConsumeWithoutZKTest.java
@@ -19,17 +19,15 @@
 package org.apache.pulsar.websocket.proxy;
 
 import static java.util.concurrent.Executors.newFixedThreadPool;
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
-
 import java.net.URI;
 import java.util.Optional;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
-
 import lombok.Cleanup;
 import org.apache.pulsar.client.api.ProducerConsumerBase;
 import org.apache.pulsar.metadata.impl.ZKMetadataStore;
@@ -63,7 +61,7 @@ public class ProxyPublishConsumeWithoutZKTest extends 
ProducerConsumerBase {
         config.setClusterName("test");
         config.setServiceUrl(pulsar.getSafeWebServiceAddress());
         config.setServiceUrlTls(pulsar.getWebServiceAddressTls());
-        service = spy(new WebSocketService(config));
+        service = spyWithClassAndConstructorArgs(WebSocketService.class, 
config);
         doReturn(new 
ZKMetadataStore(mockZooKeeper)).when(service).createMetadataStore(anyString(), 
anyInt());
         proxyServer = new ProxyServer(config);
         WebSocketServiceStarter.start(proxyServer, service);
diff --git 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/v1/V1_ProxyAuthenticationTest.java
 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/v1/V1_ProxyAuthenticationTest.java
index d315a10..842aced 100644
--- 
a/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/v1/V1_ProxyAuthenticationTest.java
+++ 
b/pulsar-broker/src/test/java/org/apache/pulsar/websocket/proxy/v1/V1_ProxyAuthenticationTest.java
@@ -19,26 +19,22 @@
 package org.apache.pulsar.websocket.proxy.v1;
 
 import static java.util.concurrent.Executors.newFixedThreadPool;
+import static 
org.apache.pulsar.broker.BrokerTestUtil.spyWithClassAndConstructorArgs;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.spy;
-
 import com.google.common.collect.Sets;
-
 import java.net.URI;
 import java.util.Optional;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
-
 import javax.ws.rs.client.Client;
 import javax.ws.rs.client.ClientBuilder;
 import javax.ws.rs.client.Invocation;
 import javax.ws.rs.client.WebTarget;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
-
 import lombok.Cleanup;
 import org.apache.pulsar.client.api.v1.V1_ProducerConsumerBase;
 import org.apache.pulsar.metadata.impl.ZKMetadataStore;
@@ -88,7 +84,7 @@ public class V1_ProxyAuthenticationTest extends 
V1_ProducerConsumerBase {
             config.setAnonymousUserRole("anonymousUser");
         }
 
-        service = spy(new WebSocketService(config));
+        service = spyWithClassAndConstructorArgs(WebSocketService.class, 
config);
         doReturn(new 
ZKMetadataStore(mockZooKeeperGlobal)).when(service).createMetadataStore(anyString(),
 anyInt());
         proxyServer = new ProxyServer(config);
         WebSocketServiceStarter.start(proxyServer, service);
diff --git 
a/pulsar-client/src/test/java/org/apache/pulsar/client/api/MessageRouterTest.java
 
b/pulsar-client/src/test/java/org/apache/pulsar/client/api/MessageRouterTest.java
index 48f5816..0c29ecb 100644
--- 
a/pulsar-client/src/test/java/org/apache/pulsar/client/api/MessageRouterTest.java
+++ 
b/pulsar-client/src/test/java/org/apache/pulsar/client/api/MessageRouterTest.java
@@ -32,7 +32,7 @@ import org.testng.annotations.Test;
  */
 public class MessageRouterTest {
 
-    private static class TestMessageRouter implements MessageRouter {
+    public static class TestMessageRouter implements MessageRouter {
 
         @Override
         public int choosePartition(Message<?> msg) {
@@ -43,7 +43,7 @@ public class MessageRouterTest {
     @SuppressWarnings("deprecation")
     @Test
     public void testChoosePartition() {
-        MessageRouter router = spy(new TestMessageRouter());
+        MessageRouter router = spy(TestMessageRouter.class);
         Message<?> mockedMsg = mock(Message.class);
         TopicMetadata mockedMetadata = mock(TopicMetadata.class);
 
diff --git 
a/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/FunctionRuntimeManagerTest.java
 
b/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/FunctionRuntimeManagerTest.java
index 93e0e37..02e67a2 100644
--- 
a/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/FunctionRuntimeManagerTest.java
+++ 
b/pulsar-functions/worker/src/test/java/org/apache/pulsar/functions/worker/FunctionRuntimeManagerTest.java
@@ -946,7 +946,7 @@ public class FunctionRuntimeManagerTest {
         WorkerConfig workerConfig = new WorkerConfig();
         workerConfig.setKubernetesContainerFactory(kubernetesContainerFactory);
 
-        KubernetesRuntimeFactory mockedKubernetesRuntimeFactory = spy(new 
KubernetesRuntimeFactory());
+        KubernetesRuntimeFactory mockedKubernetesRuntimeFactory = 
spy(KubernetesRuntimeFactory.class);
         doNothing().when(mockedKubernetesRuntimeFactory).initialize(
             any(WorkerConfig.class),
             any(AuthenticationConfig.class),
@@ -1111,7 +1111,7 @@ public class FunctionRuntimeManagerTest {
         WorkerConfig.KubernetesContainerFactory kubernetesContainerFactory
                 = new WorkerConfig.KubernetesContainerFactory();
         workerConfig.setKubernetesContainerFactory(kubernetesContainerFactory);
-        KubernetesRuntimeFactory mockedKubernetesRuntimeFactory = spy(new 
KubernetesRuntimeFactory());
+        KubernetesRuntimeFactory mockedKubernetesRuntimeFactory = 
spy(KubernetesRuntimeFactory.class);
         doNothing().when(mockedKubernetesRuntimeFactory).initialize(
                 any(WorkerConfig.class),
                 any(AuthenticationConfig.class),
diff --git 
a/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/TestPulsarConnector.java
 
b/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/TestPulsarConnector.java
index 5d9f363..a91290c 100644
--- 
a/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/TestPulsarConnector.java
+++ 
b/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/TestPulsarConnector.java
@@ -347,7 +347,7 @@ public abstract class TestPulsarConnector {
 
     public static PulsarMetadata mockColumnMetadata() {
         ConnectorContext prestoConnectorContext = new 
TestingConnectorContext();
-        PulsarConnectorConfig pulsarConnectorConfig = spy(new 
PulsarConnectorConfig());
+        PulsarConnectorConfig pulsarConnectorConfig = 
spy(PulsarConnectorConfig.class);
         pulsarConnectorConfig.setMaxEntryReadBatchSize(1);
         pulsarConnectorConfig.setMaxSplitEntryQueueSize(10);
         pulsarConnectorConfig.setMaxSplitMessageQueueSize(100);
@@ -436,7 +436,7 @@ public abstract class TestPulsarConnector {
 
     @BeforeMethod
     public void setup() throws Exception {
-        this.pulsarConnectorConfig = spy(new PulsarConnectorConfig());
+        this.pulsarConnectorConfig = spy(PulsarConnectorConfig.class);
         this.pulsarConnectorConfig.setMaxEntryReadBatchSize(1);
         this.pulsarConnectorConfig.setMaxSplitEntryQueueSize(10);
         this.pulsarConnectorConfig.setMaxSplitMessageQueueSize(100);
diff --git 
a/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/TestPulsarRecordCursor.java
 
b/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/TestPulsarRecordCursor.java
index 60d3fed..3b853b7 100644
--- 
a/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/TestPulsarRecordCursor.java
+++ 
b/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/TestPulsarRecordCursor.java
@@ -446,7 +446,7 @@ public class TestPulsarRecordCursor extends 
TestPulsarConnector {
         PulsarAdmin pulsarAdmin = Mockito.mock(PulsarAdmin.class);
         Schemas schemas = Mockito.mock(Schemas.class);
         Mockito.when(pulsarAdmin.schemas()).thenReturn(schemas);
-        PulsarConnectorConfig connectorConfig = spy(new 
PulsarConnectorConfig());
+        PulsarConnectorConfig connectorConfig = 
spy(PulsarConnectorConfig.class);
         Mockito.when(connectorConfig.getPulsarAdmin()).thenReturn(pulsarAdmin);
         PulsarRecordCursor pulsarRecordCursor = spy(new PulsarRecordCursor(
                 new ArrayList<>(), pulsarSplit, connectorConfig, 
Mockito.mock(ManagedLedgerFactory.class),
diff --git 
a/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/decoder/AbstractDecoderTester.java
 
b/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/decoder/AbstractDecoderTester.java
index cd4fcaf..5cd4683 100644
--- 
a/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/decoder/AbstractDecoderTester.java
+++ 
b/pulsar-sql/presto-pulsar/src/test/java/org/apache/pulsar/sql/presto/decoder/AbstractDecoderTester.java
@@ -62,7 +62,7 @@ public abstract class AbstractDecoderTester {
     protected void init() {
         ConnectorContext prestoConnectorContext = new 
TestingConnectorContext();
         this.decoderFactory = new 
PulsarDispatchingRowDecoderFactory(prestoConnectorContext.getTypeManager());
-        this.pulsarConnectorConfig = spy(new PulsarConnectorConfig());
+        this.pulsarConnectorConfig = spy(PulsarConnectorConfig.class);
         this.pulsarConnectorConfig.setMaxEntryReadBatchSize(1);
         this.pulsarConnectorConfig.setMaxSplitEntryQueueSize(10);
         this.pulsarConnectorConfig.setMaxSplitMessageQueueSize(100);

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