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The following commit(s) were added to refs/heads/master by this push:
     new c24c313d54 HDDS-9998. Add static import for assertions and mocks in 
remaining ozone modules (#6056)
c24c313d54 is described below

commit c24c313d542deaf626024231142cae805aa84f31
Author: Raju Balpande <[email protected]>
AuthorDate: Tue Jan 23 01:46:10 2024 +0530

    HDDS-9998. Add static import for assertions and mocks in remaining ozone 
modules (#6056)
---
 .../TestVulnerableUnhealthyReplicasHandler.java    |  3 +-
 .../hdds/scm/node/TestDatanodeAdminMonitor.java    |  5 +-
 .../hadoop/ozone/insight/TestBaseInsightPoint.java | 16 ++--
 .../ozone/insight/TestConfigurationSubCommand.java | 15 ++--
 .../hadoop/ozone/insight/TestLogSubcommand.java    |  5 +-
 .../ozone/container/TestECContainerRecovery.java   |  9 ++-
 .../commandhandler/TestBlockDeletion.java          | 92 +++++++++++-----------
 .../commandhandler/TestCloseContainerHandler.java  |  7 +-
 .../commandhandler/TestDeleteContainerHandler.java | 85 ++++++++------------
 .../TestRefreshVolumeUsageHandler.java             |  6 +-
 .../ozone/om/helpers/TestOmPrefixInfoCodec.java    |  4 +-
 .../ozone/om/helpers/TestS3SecretValueCodec.java   |  9 ++-
 .../om/request/key/TestOMKeyDeleteRequest.java     |  3 +-
 .../request/key/TestOMKeyDeleteRequestWithFSO.java | 28 +++----
 .../security/acl/TestSharedTmpDirAuthorizer.java   | 14 ++--
 .../containergenerator/TestGeneratorDatanode.java  |  5 +-
 .../ozone/scm/TestDecommissionScmSubcommand.java   | 10 +--
 .../hadoop/ozone/shell/TestOzoneAddress.java       | 58 +++++++-------
 .../shell/TestOzoneAddressClientCreation.java      | 47 +++++------
 .../ozone/shell/keys/TestChecksumKeyHandler.java   | 30 ++++---
 20 files changed, 219 insertions(+), 232 deletions(-)

diff --git 
a/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/replication/health/TestVulnerableUnhealthyReplicasHandler.java
 
b/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/replication/health/TestVulnerableUnhealthyReplicasHandler.java
index 8fa4c974e1..28eccd5211 100644
--- 
a/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/replication/health/TestVulnerableUnhealthyReplicasHandler.java
+++ 
b/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/container/replication/health/TestVulnerableUnhealthyReplicasHandler.java
@@ -35,7 +35,6 @@ import org.apache.hadoop.hdds.scm.node.NodeStatus;
 import org.apache.hadoop.hdds.scm.node.states.NodeNotFoundException;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.mockito.Mockito;
 
 import java.util.Collections;
 import java.util.HashSet;
@@ -190,7 +189,7 @@ public class TestVulnerableUnhealthyReplicasHandler {
     ContainerReplica unhealthy =
         createContainerReplica(container.containerID(), 0, DECOMMISSIONING, 
State.UNHEALTHY, sequenceId);
     replicas.add(unhealthy);
-    
Mockito.when(replicationManager.getNodeStatus(Mockito.any(DatanodeDetails.class)))
+    when(replicationManager.getNodeStatus(any(DatanodeDetails.class)))
         .thenAnswer(invocation -> {
           DatanodeDetails dn = invocation.getArgument(0);
           if (dn.equals(unhealthy.getDatanodeDetails())) {
diff --git 
a/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/node/TestDatanodeAdminMonitor.java
 
b/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/node/TestDatanodeAdminMonitor.java
index 523d4226cb..a2df04742f 100644
--- 
a/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/node/TestDatanodeAdminMonitor.java
+++ 
b/hadoop-hdds/server-scm/src/test/java/org/apache/hadoop/hdds/scm/node/TestDatanodeAdminMonitor.java
@@ -41,7 +41,6 @@ import org.apache.hadoop.hdds.server.events.EventQueue;
 import 
org.apache.hadoop.security.authentication.client.AuthenticationException;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.mockito.Mockito;
 
 import java.io.IOException;
 import java.util.Collections;
@@ -406,7 +405,7 @@ public class TestDatanodeAdminMonitor {
     replicas.add(unhealthy);
     nodeManager.setContainers(dn1, ImmutableSet.of(containerID));
 
-    Mockito.when(repManager.getContainerReplicaCount(Mockito.eq(containerID)))
+    when(repManager.getContainerReplicaCount(eq(containerID)))
         .thenReturn(new RatisContainerReplicaCount(container, replicas,
             Collections.emptyList(), 2, false));
     DatanodeAdminMonitorTestUtil.mockCheckContainerState(repManager, true);
@@ -430,7 +429,7 @@ public class TestDatanodeAdminMonitor {
         .setDatanodeDetails(MockDatanodeDetails.randomDatanodeDetails())
         .build();
     replicas.add(copyOfUnhealthyOnNewNode);
-    Mockito.when(repManager.getContainerReplicaCount(Mockito.eq(containerID)))
+    when(repManager.getContainerReplicaCount(eq(containerID)))
         .thenReturn(new RatisContainerReplicaCount(container, replicas,
             Collections.emptyList(), 2, false));
     DatanodeAdminMonitorTestUtil.mockCheckContainerState(repManager, false);
diff --git 
a/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestBaseInsightPoint.java
 
b/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestBaseInsightPoint.java
index b2d68545d0..85faf99419 100644
--- 
a/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestBaseInsightPoint.java
+++ 
b/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestBaseInsightPoint.java
@@ -17,12 +17,14 @@
  */
 package org.apache.hadoop.ozone.insight;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import java.util.HashMap;
 import java.util.Map;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 /**
  * Test common insight point utility methods.
  */
@@ -42,14 +44,14 @@ public class TestBaseInsightPoint {
     Map<String, String> filters = new HashMap<>();
     filters.put("datanode", "123");
 
-    Assertions.assertTrue(insightPoint
+    assertTrue(insightPoint
         .filterLog(filters, "This a log specific to [datanode=123]"));
 
-    Assertions.assertFalse(insightPoint
+    assertFalse(insightPoint
         .filterLog(filters, "This a log specific to [datanode=234]"));
 
     //with empty filters
-    Assertions.assertTrue(insightPoint
+    assertTrue(insightPoint
         .filterLog(new HashMap<>(), "This a log specific to [datanode=234]"));
 
     //with multiple filters
@@ -57,14 +59,14 @@ public class TestBaseInsightPoint {
     filters.put("datanode", "123");
     filters.put("pipeline", "abcd");
 
-    Assertions.assertFalse(insightPoint
+    assertFalse(insightPoint
         .filterLog(filters, "This a log specific to [datanode=123]"));
 
-    Assertions.assertTrue(insightPoint
+    assertTrue(insightPoint
         .filterLog(filters,
             "This a log specific to [datanode=123] [pipeline=abcd]"));
 
-    Assertions.assertFalse(insightPoint
+    assertFalse(insightPoint
         .filterLog(filters,
             "This a log specific to [datanode=456] [pipeline=abcd]"));
 
diff --git 
a/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestConfigurationSubCommand.java
 
b/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestConfigurationSubCommand.java
index 9be82ebc41..701652bee0 100644
--- 
a/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestConfigurationSubCommand.java
+++ 
b/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestConfigurationSubCommand.java
@@ -27,11 +27,12 @@ import org.apache.hadoop.hdds.conf.ConfigGroup;
 import org.apache.hadoop.hdds.conf.ConfigTag;
 import org.apache.hadoop.hdds.conf.OzoneConfiguration;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
 /**
  * Test insight report which prints out configs.
  */
@@ -60,12 +61,12 @@ public class TestConfigurationSubCommand {
     subCommand.printConfig(CustomConfig.class, conf);
 
     final String output = out.toString(StandardCharsets.UTF_8.name());
-    Assertions.assertTrue(output.contains(">>> ozone.scm.client.address"));
-    Assertions.assertTrue(output.contains("default: localhost"));
-    Assertions.assertTrue(output.contains("current: omclient"));
-    Assertions.assertTrue(output.contains(">>> ozone.scm.client.secure"));
-    Assertions.assertTrue(output.contains("default: true"));
-    Assertions.assertTrue(output.contains("current: true"));
+    assertThat(output).contains(">>> ozone.scm.client.address");
+    assertThat(output).contains("default: localhost");
+    assertThat(output).contains("current: omclient");
+    assertThat(output).contains(">>> ozone.scm.client.secure");
+    assertThat(output).contains("default: true");
+    assertThat(output).contains("current: true");
   }
 
   /**
diff --git 
a/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestLogSubcommand.java
 
b/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestLogSubcommand.java
index 0140208586..f895a91c53 100644
--- 
a/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestLogSubcommand.java
+++ 
b/hadoop-ozone/insight/src/test/java/org/apache/hadoop/ozone/insight/TestLogSubcommand.java
@@ -17,9 +17,10 @@
  */
 package org.apache.hadoop.ozone.insight;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 /**
  * Testing utility methods of the log subcommand test.
  */
@@ -36,6 +37,6 @@ public class TestLogSubcommand {
             + "storageLocation: \"/tmp/hadoop-neo/dfs/data\"\\n  capacity: "
             + "250438021120\\n  scmUsed: 16384\\n  remaining: 212041244672\\n  
"
             + "storageType: DISK\\n  failed: false\\n}\\n</json>");
-    Assertions.assertEquals(10, result.split("\n").length);
+    assertEquals(10, result.split("\n").length);
   }
 }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/TestECContainerRecovery.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/TestECContainerRecovery.java
index b50f2ac8d6..5a7e404f50 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/TestECContainerRecovery.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/TestECContainerRecovery.java
@@ -52,7 +52,6 @@ import org.apache.ozone.test.GenericTestUtils;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
-import org.mockito.Mockito;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -72,6 +71,8 @@ import java.util.stream.Collectors;
 import static java.nio.charset.StandardCharsets.UTF_8;
 import static 
org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_RECOVERING_CONTAINER_TIMEOUT;
 import static 
org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_RECOVERING_CONTAINER_TIMEOUT_DEFAULT;
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.doAnswer;
 
 /**
  * Tests the EC recovery and over replication processing.
@@ -308,7 +309,7 @@ public class TestECContainerRecovery {
               .mockFieldReflection(handler,
                       "coordinator");
 
-      Mockito.doAnswer(invocation -> {
+      doAnswer(invocation -> {
         GenericTestUtils.waitFor(() ->
             dn.getDatanodeStateMachine()
                 .getContainer()
@@ -320,8 +321,8 @@ public class TestECContainerRecovery {
         reconstructedDN.set(dn);
         invocation.callRealMethod();
         return null;
-      }).when(coordinator).reconstructECBlockGroup(Mockito.any(), 
Mockito.any(),
-              Mockito.any(), Mockito.any());
+      }).when(coordinator).reconstructECBlockGroup(any(), any(),
+              any(), any());
     }
 
     // Shutting down DN triggers close pipeline and close container.
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestBlockDeletion.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestBlockDeletion.java
index 5dec1799b4..e5c0d5d253 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestBlockDeletion.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestBlockDeletion.java
@@ -72,7 +72,6 @@ import org.apache.ozone.test.GenericTestUtils;
 import org.apache.ozone.test.GenericTestUtils.LogCapturer;
 import org.apache.ozone.test.tag.Flaky;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
@@ -95,14 +94,19 @@ import java.util.concurrent.TimeUnit;
 import static java.lang.Math.max;
 import static java.nio.charset.StandardCharsets.UTF_8;
 import static 
org.apache.hadoop.hdds.HddsConfigKeys.HDDS_COMMAND_STATUS_REPORT_INTERVAL;
-import static org.apache.hadoop.hdds
-    .HddsConfigKeys.HDDS_CONTAINER_REPORT_INTERVAL;
+import static 
org.apache.hadoop.hdds.HddsConfigKeys.HDDS_CONTAINER_REPORT_INTERVAL;
 import static org.apache.hadoop.hdds.HddsConfigKeys.HDDS_HEARTBEAT_INTERVAL;
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_EXPIRED_CONTAINER_REPLICA_OP_SCRUB_INTERVAL;
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_PIPELINE_OWNER_CONTAINER_COUNT;
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_STALENODE_INTERVAL;
-import static org.apache.hadoop.ozone
-    .OzoneConfigKeys.OZONE_BLOCK_DELETING_SERVICE_INTERVAL;
+import static 
org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_BLOCK_DELETING_SERVICE_INTERVAL;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 /**
  * Tests for Block deletion.
@@ -246,23 +250,23 @@ public class TestBlockDeletion {
       }
     }, 1000, 10000);
     // No containers with deleted blocks
-    Assertions.assertTrue(containerIdsWithDeletedBlocks.isEmpty());
+    assertTrue(containerIdsWithDeletedBlocks.isEmpty());
     // Delete transactionIds for the containers should be 0.
     // NOTE: this test assumes that all the container is KetValueContainer. If
     // other container types is going to be added, this test should be checked.
     matchContainerTransactionIds();
 
-    Assertions.assertEquals(0L,
+    assertEquals(0L,
         metrics.getNumBlockDeletionTransactionCreated());
     writeClient.deleteKey(keyArgs);
     Thread.sleep(5000);
     // The blocks should not be deleted in the DN as the container is open
-    Throwable e = Assertions.assertThrows(AssertionError.class,
+    Throwable e = assertThrows(AssertionError.class,
         () -> verifyBlocksDeleted(omKeyLocationInfoGroupList));
-    Assertions.assertTrue(
+    assertTrue(
         e.getMessage().startsWith("expected: <null> but was:"));
 
-    Assertions.assertEquals(0L, metrics.getNumBlockDeletionTransactionSent());
+    assertEquals(0L, metrics.getNumBlockDeletionTransactionSent());
     // close the containers which hold the blocks for the key
     OzoneTestUtils.closeAllContainers(scm.getEventQueue(), scm);
 
@@ -291,7 +295,7 @@ public class TestBlockDeletion {
     }, 2000, 30000);
 
     // Few containers with deleted blocks
-    Assertions.assertFalse(containerIdsWithDeletedBlocks.isEmpty());
+    assertFalse(containerIdsWithDeletedBlocks.isEmpty());
     // Containers in the DN and SCM should have same delete transactionIds
     matchContainerTransactionIds();
 
@@ -312,12 +316,12 @@ public class TestBlockDeletion {
     cluster.restartHddsDatanode(0, true);
     matchContainerTransactionIds();
 
-    Assertions.assertEquals(metrics.getNumBlockDeletionTransactionCreated(),
+    assertEquals(metrics.getNumBlockDeletionTransactionCreated(),
         metrics.getNumBlockDeletionTransactionCompleted());
-    Assertions.assertTrue(metrics.getNumBlockDeletionCommandSent() >=
+    assertTrue(metrics.getNumBlockDeletionCommandSent() >=
         metrics.getNumBlockDeletionCommandSuccess() +
             metrics.getBNumBlockDeletionCommandFailure());
-    Assertions.assertTrue(metrics.getNumBlockDeletionTransactionSent() >=
+    assertTrue(metrics.getNumBlockDeletionTransactionSent() >=
         metrics.getNumBlockDeletionTransactionFailure() +
             metrics.getNumBlockDeletionTransactionSuccess());
     LOG.info(metrics.toString());
@@ -326,7 +330,7 @@ public class TestBlockDeletion {
     for (int i = 5; i >= 0; i--) {
       if (logCapturer.getOutput().contains("1(" + i + ")")) {
         for (int j = 0; j <= i; j++) {
-          Assertions.assertTrue(logCapturer.getOutput()
+          assertTrue(logCapturer.getOutput()
               .contains("1(" + i + ")"));
         }
         break;
@@ -367,8 +371,8 @@ public class TestBlockDeletion {
     final int valueSize = value.getBytes(UTF_8).length;
     final int keyCount = 1;
     containerInfos.stream().forEach(container -> {
-      Assertions.assertEquals(valueSize, container.getUsedBytes());
-      Assertions.assertEquals(keyCount, container.getNumberOfKeys());
+      assertEquals(valueSize, container.getUsedBytes());
+      assertEquals(keyCount, container.getNumberOfKeys());
     });
 
     OzoneTestUtils.closeAllContainers(scm.getEventQueue(), scm);
@@ -389,7 +393,7 @@ public class TestBlockDeletion {
       containerMap.values().forEach(container -> {
         KeyValueContainerData containerData =
             (KeyValueContainerData)container.getContainerData();
-        Assertions.assertEquals(0, 
containerData.getNumPendingDeletionBlocks());
+        assertEquals(0, containerData.getNumPendingDeletionBlocks());
       });
     });
 
@@ -398,7 +402,7 @@ public class TestBlockDeletion {
     ((EventQueue)scm.getEventQueue()).processAll(1000);
     containerInfos = scm.getContainerManager().getContainers();
     containerInfos.stream().forEach(container ->
-        Assertions.assertEquals(HddsProtos.LifeCycleState.DELETING,
+        assertEquals(HddsProtos.LifeCycleState.DELETING,
             container.getState()));
     LogCapturer logCapturer = LogCapturer.captureLogs(
         legacyEnabled ? LegacyReplicationManager.LOG  : 
ReplicationManager.LOG);
@@ -422,14 +426,14 @@ public class TestBlockDeletion {
       List<ContainerInfo> infos = scm.getContainerManager().getContainers();
       try {
         infos.stream().forEach(container -> {
-          Assertions.assertEquals(HddsProtos.LifeCycleState.DELETED,
+          assertEquals(HddsProtos.LifeCycleState.DELETED,
               container.getState());
           try {
-            Assertions.assertEquals(HddsProtos.LifeCycleState.DELETED,
+            assertEquals(HddsProtos.LifeCycleState.DELETED,
                 scm.getScmMetadataStore().getContainerTable()
                     .get(container.containerID()).getState());
           } catch (IOException e) {
-            Assertions.fail(
+            fail(
                 "Container from SCM DB should be marked as DELETED");
           }
         });
@@ -477,8 +481,8 @@ public class TestBlockDeletion {
     final int keyCount = 1;
     List<Long> containerIdList = new ArrayList<>();
     containerInfos.stream().forEach(container -> {
-      Assertions.assertEquals(valueSize, container.getUsedBytes());
-      Assertions.assertEquals(keyCount, container.getNumberOfKeys());
+      assertEquals(valueSize, container.getUsedBytes());
+      assertEquals(keyCount, container.getNumberOfKeys());
       containerIdList.add(container.getContainerID());
     });
 
@@ -499,14 +503,14 @@ public class TestBlockDeletion {
     ContainerID containerId = ContainerID.valueOf(
         containerInfos.get(0).getContainerID());
     // Before restart container state is non-empty
-    Assertions.assertFalse(getContainerFromDN(
+    assertFalse(getContainerFromDN(
         cluster.getHddsDatanodes().get(0), containerId.getId())
         .getContainerData().isEmpty());
     // Restart DataNode
     cluster.restartHddsDatanode(0, true);
 
     // After restart also container state remains non-empty.
-    Assertions.assertFalse(getContainerFromDN(
+    assertFalse(getContainerFromDN(
         cluster.getHddsDatanodes().get(0), containerId.getId())
         .getContainerData().isEmpty());
 
@@ -526,14 +530,14 @@ public class TestBlockDeletion {
         100, 10 * 1000);
 
     // Container state should be empty now as key got deleted
-    Assertions.assertTrue(getContainerFromDN(
+    assertTrue(getContainerFromDN(
         cluster.getHddsDatanodes().get(0), containerId.getId())
         .getContainerData().isEmpty());
 
     // Restart DataNode
     cluster.restartHddsDatanode(0, true);
     // Container state should be empty even after restart
-    Assertions.assertTrue(getContainerFromDN(
+    assertTrue(getContainerFromDN(
         cluster.getHddsDatanodes().get(0), containerId.getId())
         .getContainerData().isEmpty());
 
@@ -543,14 +547,14 @@ public class TestBlockDeletion {
       List<ContainerInfo> infos = scm.getContainerManager().getContainers();
       try {
         infos.stream().forEach(container -> {
-          Assertions.assertEquals(HddsProtos.LifeCycleState.DELETED,
+          assertEquals(HddsProtos.LifeCycleState.DELETED,
               container.getState());
           try {
-            Assertions.assertEquals(HddsProtos.LifeCycleState.DELETED,
+            assertEquals(HddsProtos.LifeCycleState.DELETED,
                 scm.getScmMetadataStore().getContainerTable()
                     .get(container.containerID()).getState());
           } catch (IOException e) {
-            Assertions.fail(
+            fail(
                 "Container from SCM DB should be marked as DELETED");
           }
         });
@@ -607,8 +611,8 @@ public class TestBlockDeletion {
     final int keyCount = 1;
     List<Long> containerIdList = new ArrayList<>();
     containerInfos.stream().forEach(container -> {
-      Assertions.assertEquals(valueSize, container.getUsedBytes());
-      Assertions.assertEquals(keyCount, container.getNumberOfKeys());
+      assertEquals(valueSize, container.getUsedBytes());
+      assertEquals(keyCount, container.getNumberOfKeys());
       containerIdList.add(container.getContainerID());
     });
 
@@ -635,7 +639,7 @@ public class TestBlockDeletion {
         = scm.getContainerManager().getContainerReplicas(containerId);
 
     // Ensure for all replica isEmpty are false in SCM
-    Assertions.assertTrue(scm.getContainerManager().getContainerReplicas(
+    assertTrue(scm.getContainerManager().getContainerReplicas(
             containerId).stream().
         allMatch(replica -> !replica.isEmpty()));
 
@@ -680,14 +684,14 @@ public class TestBlockDeletion {
       List<ContainerInfo> infos = scm.getContainerManager().getContainers();
       try {
         infos.stream().forEach(container -> {
-          Assertions.assertEquals(HddsProtos.LifeCycleState.DELETED,
+          assertEquals(HddsProtos.LifeCycleState.DELETED,
               container.getState());
           try {
-            Assertions.assertEquals(HddsProtos.LifeCycleState.DELETED,
+            assertEquals(HddsProtos.LifeCycleState.DELETED,
                 scm.getScmMetadataStore().getContainerTable()
                     .get(container.containerID()).getState());
           } catch (IOException e) {
-            Assertions.fail(
+            fail(
                 "Container from SCM DB should be marked as DELETED");
           }
         });
@@ -702,7 +706,7 @@ public class TestBlockDeletion {
   private void verifyTransactionsCommitted() throws IOException {
     scm.getScmBlockManager().getDeletedBlockLog();
     for (long txnID = 1; txnID <= maxTransactionId; txnID++) {
-      Assertions.assertNull(
+      assertNull(
           scm.getScmMetadataStore().getDeletedBlocksTXTable().get(txnID));
     }
   }
@@ -716,15 +720,15 @@ public class TestBlockDeletion {
       for (ContainerData containerData : containerDataList) {
         long containerId = containerData.getContainerID();
         if (containerIdsWithDeletedBlocks.contains(containerId)) {
-          Assertions.assertTrue(
+          assertTrue(
               scm.getContainerInfo(containerId).getDeleteTransactionId() > 0);
           maxTransactionId = max(maxTransactionId,
               scm.getContainerInfo(containerId).getDeleteTransactionId());
         } else {
-          Assertions.assertEquals(
+          assertEquals(
               scm.getContainerInfo(containerId).getDeleteTransactionId(), 0);
         }
-        Assertions.assertEquals(
+        assertEquals(
             ((KeyValueContainerData) dnContainerSet.getContainer(containerId)
                 .getContainerData()).getDeleteTransactionId(),
             scm.getContainerInfo(containerId).getDeleteTransactionId());
@@ -741,7 +745,7 @@ public class TestBlockDeletion {
         KeyValueContainerData cData = (KeyValueContainerData) dnContainerSet
             .getContainer(blockID.getContainerID()).getContainerData();
         try (DBHandle db = BlockUtils.getDB(cData, conf)) {
-          Assertions.assertNotNull(db.getStore().getBlockDataTable()
+          assertNotNull(db.getStore().getBlockDataTable()
               .get(cData.getBlockKey(blockID.getLocalID())));
         }
       }, omKeyLocationInfoGroups);
@@ -763,11 +767,11 @@ public class TestBlockDeletion {
           String blockKey = cData.getBlockKey(blockID.getLocalID());
 
           BlockData blockData = blockDataTable.get(blockKey);
-          Assertions.assertNull(blockData);
+          assertNull(blockData);
 
           String deletingKey = cData.getDeletingBlockKey(
               blockID.getLocalID());
-          Assertions.assertNull(blockDataTable.get(deletingKey));
+          assertNull(blockDataTable.get(deletingKey));
         }
         containerIdsWithDeletedBlocks.add(blockID.getContainerID());
       }, omKeyLocationInfoGroups);
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestCloseContainerHandler.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestCloseContainerHandler.java
index ec47c76d94..7cb3c7797f 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestCloseContainerHandler.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestCloseContainerHandler.java
@@ -45,9 +45,10 @@ import static java.nio.charset.StandardCharsets.UTF_8;
 import static 
org.apache.hadoop.hdds.protocol.proto.HddsProtos.ReplicationFactor.ONE;
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_DATANODE_RATIS_VOLUME_FREE_SPACE_MIN;
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_CONTAINER_SIZE;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Timeout;
@@ -117,7 +118,7 @@ public class TestCloseContainerHandler {
     Pipeline pipeline = cluster.getStorageContainerManager()
         .getPipelineManager().getPipeline(container.getPipelineID());
 
-    Assertions.assertFalse(isContainerClosed(cluster, containerId.getId()));
+    assertFalse(isContainerClosed(cluster, containerId.getId()));
 
     DatanodeDetails datanodeDetails =
         cluster.getHddsDatanodes().get(0).getDatanodeDetails();
@@ -135,7 +136,7 @@ public class TestCloseContainerHandler {
             5 * 1000);
 
     //double check if it's really closed (waitFor also throws an exception)
-    Assertions.assertTrue(isContainerClosed(cluster, containerId.getId()));
+    assertTrue(isContainerClosed(cluster, containerId.getId()));
   }
 
   private static Boolean isContainerClosed(MiniOzoneCluster cluster,
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestDeleteContainerHandler.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestDeleteContainerHandler.java
index 332683658b..b74e6f3c91 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestDeleteContainerHandler.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestDeleteContainerHandler.java
@@ -57,7 +57,6 @@ import 
org.apache.hadoop.ozone.protocol.commands.DeleteContainerCommand;
 import org.apache.hadoop.ozone.protocol.commands.SCMCommand;
 import org.apache.ozone.test.GenericTestUtils;
 import org.junit.jupiter.api.AfterAll;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Timeout;
@@ -77,6 +76,9 @@ import static 
org.apache.hadoop.hdds.protocol.proto.HddsProtos.ReplicationFactor
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_DATANODE_RATIS_VOLUME_FREE_SPACE_MIN;
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_CONTAINER_SIZE;
 import static 
org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_BLOCK_DELETING_SERVICE_INTERVAL;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Tests DeleteContainerCommand Handler.
@@ -165,8 +167,7 @@ public class TestDeleteContainerHandler {
     HddsDatanodeService hddsDatanodeService =
         cluster.getHddsDatanodes().get(0);
 
-    Assertions.assertFalse(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     DatanodeDetails datanodeDetails = hddsDatanodeService.getDatanodeDetails();
 
@@ -189,8 +190,7 @@ public class TestDeleteContainerHandler {
         500, 5 * 1000);
 
     //double check if it's really closed (waitFor also throws an exception)
-    Assertions.assertTrue(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertTrue(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     // Delete key, which will make isEmpty flag to true in containerData
     objectStore.getVolume(volumeName)
@@ -217,8 +217,7 @@ public class TestDeleteContainerHandler {
     lingeringBlock.createNewFile();
 
     // Check container exists before sending delete container command
-    Assertions.assertFalse(isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerDeleted(hddsDatanodeService, containerId.getId()));
 
     // Set container blockCount to 0 to mock that it is empty as per RocksDB
     getContainerfromDN(hddsDatanodeService, containerId.getId())
@@ -243,10 +242,8 @@ public class TestDeleteContainerHandler {
                 contains("Files still part of the container on delete"),
         500,
         5 * 2000);
-    Assertions.assertTrue(!isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
-    Assertions.assertTrue(beforeDeleteFailedCount <
-        metrics.getContainerDeleteFailedNonEmpty());
+    assertTrue(!isContainerDeleted(hddsDatanodeService, containerId.getId()));
+    assertTrue(beforeDeleteFailedCount < 
metrics.getContainerDeleteFailedNonEmpty());
     // Send the delete command. It should pass with force flag.
     // Deleting a non-empty container should pass on the DN when the force flag
     // is true
@@ -260,10 +257,8 @@ public class TestDeleteContainerHandler {
     GenericTestUtils.waitFor(() ->
             isContainerDeleted(hddsDatanodeService, containerId.getId()),
         500, 5 * 1000);
-    Assertions.assertTrue(isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
-    Assertions.assertTrue(beforeForceCount <
-        metrics.getContainerForceDelete());
+    assertTrue(isContainerDeleted(hddsDatanodeService, containerId.getId()));
+    assertTrue(beforeForceCount < metrics.getContainerForceDelete());
 
     kv.setCheckChunksFilePath(false);
   }
@@ -297,8 +292,7 @@ public class TestDeleteContainerHandler {
     HddsDatanodeService hddsDatanodeService =
         cluster.getHddsDatanodes().get(0);
 
-    Assertions.assertFalse(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     DatanodeDetails datanodeDetails = hddsDatanodeService.getDatanodeDetails();
 
@@ -313,8 +307,7 @@ public class TestDeleteContainerHandler {
         500, 5 * 1000);
 
     //double check if it's really closed (waitFor also throws an exception)
-    Assertions.assertTrue(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertTrue(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     // Delete key, which will make isEmpty flag to true in containerData
     objectStore.getVolume(volumeName)
@@ -341,8 +334,7 @@ public class TestDeleteContainerHandler {
     lingeringBlock.createNewFile();
 
     // Check container exists before sending delete container command
-    Assertions.assertFalse(isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerDeleted(hddsDatanodeService, containerId.getId()));
 
     // send delete container to the datanode
     SCMCommand<?> command = new DeleteContainerCommand(containerId.getId(),
@@ -357,8 +349,7 @@ public class TestDeleteContainerHandler {
     GenericTestUtils.waitFor(() ->
             isContainerDeleted(hddsDatanodeService, containerId.getId()),
         500, 5 * 1000);
-    Assertions.assertTrue(isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
+    assertTrue(isContainerDeleted(hddsDatanodeService, containerId.getId()));
   }
 
   @Test
@@ -384,8 +375,7 @@ public class TestDeleteContainerHandler {
     HddsDatanodeService hddsDatanodeService =
         cluster.getHddsDatanodes().get(0);
 
-    Assertions.assertFalse(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     DatanodeDetails datanodeDetails = hddsDatanodeService.getDatanodeDetails();
 
@@ -418,11 +408,11 @@ public class TestDeleteContainerHandler {
         500, 5 * 1000);
 
     //double check if it's really closed (waitFor also throws an exception)
-    Assertions.assertTrue(isContainerClosed(hddsDatanodeService,
+    assertTrue(isContainerClosed(hddsDatanodeService,
         containerId.getId()));
 
     // Check container exists before sending delete container command
-    Assertions.assertFalse(isContainerDeleted(hddsDatanodeService,
+    assertFalse(isContainerDeleted(hddsDatanodeService,
         containerId.getId()));
 
     long containerDeleteFailedNonEmptyBlockDB =
@@ -446,9 +436,9 @@ public class TestDeleteContainerHandler {
                 contains("the container is not empty with blockCount"),
         500,
         5 * 2000);
-    Assertions.assertTrue(!isContainerDeleted(hddsDatanodeService,
+    assertTrue(!isContainerDeleted(hddsDatanodeService,
         containerId.getId()));
-    Assertions.assertTrue(containerDeleteFailedNonEmptyBlockDB <
+    assertTrue(containerDeleteFailedNonEmptyBlockDB <
         metrics.getContainerDeleteFailedNonEmpty());
 
     // Now empty the container Dir and try with a non-empty block table
@@ -470,8 +460,7 @@ public class TestDeleteContainerHandler {
         
cluster.getStorageContainerManager().getScmContext().getTermOfLeader());
     nodeManager.addDatanodeCommand(datanodeDetails.getUuid(), command);
     Thread.sleep(5000);
-    Assertions.assertTrue(!isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerDeleted(hddsDatanodeService, containerId.getId()));
     // Send the delete command. It should pass with force flag.
     long beforeForceCount = metrics.getContainerForceDelete();
     command = new DeleteContainerCommand(containerId.getId(), true);
@@ -483,9 +472,9 @@ public class TestDeleteContainerHandler {
     GenericTestUtils.waitFor(() ->
             isContainerDeleted(hddsDatanodeService, containerId.getId()),
         500, 5 * 1000);
-    Assertions.assertTrue(isContainerDeleted(hddsDatanodeService,
+    assertTrue(isContainerDeleted(hddsDatanodeService,
         containerId.getId()));
-    Assertions.assertTrue(beforeForceCount <
+    assertTrue(beforeForceCount <
         metrics.getContainerForceDelete());
   }
 
@@ -507,8 +496,7 @@ public class TestDeleteContainerHandler {
     HddsDatanodeService hddsDatanodeService =
         cluster.getHddsDatanodes().get(0);
 
-    Assertions.assertFalse(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     DatanodeDetails datanodeDetails = hddsDatanodeService.getDatanodeDetails();
     NodeManager nodeManager =
@@ -525,12 +513,10 @@ public class TestDeleteContainerHandler {
         500, 5 * 1000);
 
     //double check if it's really closed (waitFor also throws an exception)
-    Assertions.assertTrue(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertTrue(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     // Check container exists before sending delete container command
-    Assertions.assertFalse(isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerDeleted(hddsDatanodeService, containerId.getId()));
 
     // Clear block table
     clearBlocksTable(getContainerfromDN(hddsDatanodeService,
@@ -561,8 +547,7 @@ public class TestDeleteContainerHandler {
     GenericTestUtils.waitFor(() ->
             isContainerDeleted(hddsDatanodeService, containerId.getId()),
         500, 5 * 1000);
-    Assertions.assertTrue(isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
+    assertTrue(isContainerDeleted(hddsDatanodeService, containerId.getId()));
 
   }
 
@@ -612,8 +597,7 @@ public class TestDeleteContainerHandler {
     HddsDatanodeService hddsDatanodeService =
         cluster.getHddsDatanodes().get(0);
 
-    Assertions.assertFalse(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     DatanodeDetails datanodeDetails = hddsDatanodeService.getDatanodeDetails();
 
@@ -630,12 +614,10 @@ public class TestDeleteContainerHandler {
         500, 5 * 1000);
 
     //double check if it's really closed (waitFor also throws an exception)
-    Assertions.assertTrue(isContainerClosed(hddsDatanodeService,
-        containerId.getId()));
+    assertTrue(isContainerClosed(hddsDatanodeService, containerId.getId()));
 
     // Check container exists before sending delete container command
-    Assertions.assertFalse(isContainerDeleted(hddsDatanodeService,
-        containerId.getId()));
+    assertFalse(isContainerDeleted(hddsDatanodeService, containerId.getId()));
 
     // send delete container to the datanode
     SCMCommand<?> command = new DeleteContainerCommand(containerId.getId(),
@@ -656,8 +638,7 @@ public class TestDeleteContainerHandler {
     ContainerMetrics metrics =
         hddsDatanodeService
             .getDatanodeStateMachine().getContainer().getMetrics();
-    Assertions.assertEquals(1,
-        metrics.getContainerDeleteFailedNonEmpty());
+    assertEquals(1, metrics.getContainerDeleteFailedNonEmpty());
 
     // Delete key, which will make isEmpty flag to true in containerData
     objectStore.getVolume(volumeName)
@@ -678,7 +659,7 @@ public class TestDeleteContainerHandler {
             isContainerDeleted(hddsDatanodeService, containerId.getId()),
         500, 5 * 1000);
 
-    Assertions.assertTrue(isContainerDeleted(hddsDatanodeService,
+    assertTrue(isContainerDeleted(hddsDatanodeService,
         containerId.getId()));
   }
 
@@ -723,7 +704,7 @@ public class TestDeleteContainerHandler {
       }
     }
 
-    Assertions.assertFalse(isContainerDeleted(hddsDatanodeService,
+    assertFalse(isContainerDeleted(hddsDatanodeService,
         containerId.getId()));
 
 
@@ -738,7 +719,7 @@ public class TestDeleteContainerHandler {
             isContainerDeleted(hddsDatanodeService, containerId.getId()),
         500, 5 * 1000);
 
-    Assertions.assertTrue(isContainerDeleted(hddsDatanodeService,
+    assertTrue(isContainerDeleted(hddsDatanodeService,
         containerId.getId()));
 
   }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestRefreshVolumeUsageHandler.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestRefreshVolumeUsageHandler.java
index c47f099309..23382b2abe 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestRefreshVolumeUsageHandler.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/container/common/statemachine/commandhandler/TestRefreshVolumeUsageHandler.java
@@ -30,7 +30,6 @@ import org.apache.hadoop.ozone.client.OzoneClientFactory;
 import org.apache.hadoop.ozone.client.io.OzoneOutputStream;
 import org.apache.ozone.test.GenericTestUtils;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Timeout;
@@ -43,6 +42,7 @@ import static 
org.apache.hadoop.hdds.HddsConfigKeys.HDDS_NODE_REPORT_INTERVAL;
 import static 
org.apache.hadoop.hdds.protocol.proto.HddsProtos.ReplicationFactor.ONE;
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_DATANODE_RATIS_VOLUME_FREE_SPACE_MIN;
 import static 
org.apache.hadoop.hdds.scm.ScmConfigKeys.OZONE_SCM_CONTAINER_SIZE;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Test the behaviour of the datanode and scm when communicating
@@ -101,7 +101,7 @@ public class TestRefreshVolumeUsageHandler {
       //a new key is created, but the datanode default REFRESH_PERIOD is 1 
hour,
       //still the cache is updated, so the scm will eventually get the new
       //used space from the datanode through node report.
-      Assertions.assertTrue(cluster.getStorageContainerManager()
+      assertTrue(cluster.getStorageContainerManager()
           .getScmNodeManager().getUsageInfo(datanodeDetails)
           .getScmNodeStat().getScmUsed().isEqual(currentScmUsed));
 
@@ -116,7 +116,7 @@ public class TestRefreshVolumeUsageHandler {
 
       //after waiting for several node report , this usage info
       //in SCM should be updated as we have updated the DN's cached usage info.
-      Assertions.assertTrue(cluster.getStorageContainerManager()
+      assertTrue(cluster.getStorageContainerManager()
           .getScmNodeManager().getUsageInfo(datanodeDetails)
           .getScmNodeStat().getScmUsed().isGreater(currentScmUsed));
 
diff --git 
a/hadoop-ozone/interface-storage/src/test/java/org/apache/hadoop/ozone/om/helpers/TestOmPrefixInfoCodec.java
 
b/hadoop-ozone/interface-storage/src/test/java/org/apache/hadoop/ozone/om/helpers/TestOmPrefixInfoCodec.java
index 6015491468..f3ad1d8c76 100644
--- 
a/hadoop-ozone/interface-storage/src/test/java/org/apache/hadoop/ozone/om/helpers/TestOmPrefixInfoCodec.java
+++ 
b/hadoop-ozone/interface-storage/src/test/java/org/apache/hadoop/ozone/om/helpers/TestOmPrefixInfoCodec.java
@@ -22,7 +22,6 @@ import org.apache.hadoop.hdds.utils.db.Proto2CodecTestBase;
 import org.apache.hadoop.ozone.OzoneAcl;
 import org.apache.hadoop.ozone.security.acl.IAccessAuthorizer.ACLIdentityType;
 import org.apache.hadoop.ozone.security.acl.IAccessAuthorizer.ACLType;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
@@ -30,6 +29,7 @@ import java.util.LinkedList;
 import java.util.List;
 
 import static org.apache.hadoop.ozone.OzoneAcl.AclScope.ACCESS;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * Test {@link OmPrefixInfo#getCodec()}.
@@ -57,6 +57,6 @@ public class TestOmPrefixInfoCodec extends 
Proto2CodecTestBase<OmPrefixInfo> {
     OmPrefixInfo opiLoad = codec.fromPersistedFormat(
         codec.toPersistedFormat(opiSave));
 
-    Assertions.assertEquals(opiSave, opiLoad, "Loaded not equals to saved");
+    assertEquals(opiSave, opiLoad, "Loaded not equals to saved");
   }
 }
diff --git 
a/hadoop-ozone/interface-storage/src/test/java/org/apache/hadoop/ozone/om/helpers/TestS3SecretValueCodec.java
 
b/hadoop-ozone/interface-storage/src/test/java/org/apache/hadoop/ozone/om/helpers/TestS3SecretValueCodec.java
index 19cb686197..d1c4372ca9 100644
--- 
a/hadoop-ozone/interface-storage/src/test/java/org/apache/hadoop/ozone/om/helpers/TestS3SecretValueCodec.java
+++ 
b/hadoop-ozone/interface-storage/src/test/java/org/apache/hadoop/ozone/om/helpers/TestS3SecretValueCodec.java
@@ -22,9 +22,12 @@ import java.util.UUID;
 
 import org.apache.hadoop.hdds.utils.db.Codec;
 import org.apache.hadoop.hdds.utils.db.Proto2CodecTestBase;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+
 /**
  * Test {@link S3SecretValue#getCodec()}.
  */
@@ -44,10 +47,10 @@ public class TestS3SecretValueCodec
             UUID.randomUUID().toString());
 
     byte[] data = codec.toPersistedFormat(s3SecretValue);
-    Assertions.assertNotNull(data);
+    assertNotNull(data);
 
     S3SecretValue docdedS3Secret = codec.fromPersistedFormat(data);
 
-    Assertions.assertEquals(s3SecretValue, docdedS3Secret);
+    assertEquals(s3SecretValue, docdedS3Secret);
   }
 }
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/key/TestOMKeyDeleteRequest.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/key/TestOMKeyDeleteRequest.java
index cb585caefd..00d1883d74 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/key/TestOMKeyDeleteRequest.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/key/TestOMKeyDeleteRequest.java
@@ -28,7 +28,6 @@ import java.util.UUID;
 import org.apache.hadoop.ozone.om.exceptions.OMException;
 import org.apache.hadoop.ozone.om.helpers.BucketLayout;
 import org.apache.hadoop.ozone.om.request.OMRequestTestUtils;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
@@ -52,7 +51,7 @@ public class TestOMKeyDeleteRequest extends TestOMKeyRequest {
     OMRequestTestUtils.addVolumeAndBucketToDB(volumeName, bucketName, 
omMetadataManager, getBucketLayout());
     String ozoneKey = addKeyToTable(testKeyName);
     OmKeyInfo omKeyInfo = 
omMetadataManager.getKeyTable(getBucketLayout()).get(ozoneKey);
-    Assertions.assertNotNull(omKeyInfo);
+    assertNotNull(omKeyInfo);
 
     doPreExecute(createDeleteKeyRequest(testKeyName));
   }
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/key/TestOMKeyDeleteRequestWithFSO.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/key/TestOMKeyDeleteRequestWithFSO.java
index 96483fb587..9dafab0902 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/key/TestOMKeyDeleteRequestWithFSO.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/key/TestOMKeyDeleteRequestWithFSO.java
@@ -21,8 +21,9 @@ package org.apache.hadoop.ozone.om.request.key;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
-import static org.junit.jupiter.api.Assertions.fail;
+
 import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
 import org.apache.hadoop.ozone.om.OzonePrefixPathImpl;
 import org.apache.hadoop.ozone.om.exceptions.OMException;
@@ -33,7 +34,6 @@ import org.apache.hadoop.ozone.om.request.OMRequestTestUtils;
 import 
org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMRequest;
 import org.apache.hadoop.ozone.security.acl.OzonePrefixPath;
 import org.apache.hadoop.util.Time;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
@@ -112,7 +112,7 @@ public class TestOMKeyDeleteRequestWithFSO extends 
TestOMKeyDeleteRequest {
     OMRequestTestUtils.addVolumeAndBucketToDB(volumeName, bucketName, 
omMetadataManager, getBucketLayout());
     String ozoneKey = addKeyToTable();
     OmKeyInfo omKeyInfo = 
omMetadataManager.getKeyTable(getBucketLayout()).get(ozoneKey);
-    Assertions.assertNotNull(omKeyInfo);
+    assertNotNull(omKeyInfo);
 
     doPreExecute(createDeleteKeyRequest());
   }
@@ -142,19 +142,14 @@ public class TestOMKeyDeleteRequestWithFSO extends 
TestOMKeyDeleteRequest {
     verifyPath(ozonePrefixPath, "c/d", "c/d/e");
     verifyPath(ozonePrefixPath, "c/d/e", "c/d/e/file1");
 
-    try {
-      ozonePrefixPath.getChildren("c/d/e/file1");
-      fail("Should throw INVALID_KEY_NAME as the given " +
-          "path is a file.");
-    } catch (OMException ome) {
-      assertEquals(OMException.ResultCodes.INVALID_KEY_NAME,
-          ome.getResult());
-    }
+    OMException ome = assertThrows(OMException.class, () -> 
ozonePrefixPath.getChildren("c/d/e/file1"),
+        "Should throw INVALID_KEY_NAME as the given path is a file.");
+    assertEquals(OMException.ResultCodes.INVALID_KEY_NAME, ome.getResult());
 
     // OzonePrefixPathImpl on a file
-    ozonePrefixPath = new OzonePrefixPathImpl(volumeName,
+    OzonePrefixPathImpl ozonePrefixPathFile1 = new 
OzonePrefixPathImpl(volumeName,
         bucketName, "c/d/e/file1", keyManager);
-    status = ozonePrefixPath.getOzoneFileStatus();
+    status = ozonePrefixPathFile1.getOzoneFileStatus();
     assertNotNull(status);
     assertEquals("c/d/e/file1", status.getTrimmedName());
     assertEquals("c/d/e/file1", status.getKeyInfo().getKeyName());
@@ -168,12 +163,7 @@ public class TestOMKeyDeleteRequestWithFSO extends 
TestOMKeyDeleteRequest {
         pathName);
     assertTrue(pathItr.hasNext(), "Failed to list keyPaths");
     assertEquals(expectedPath, pathItr.next().getTrimmedName());
-    try {
-      pathItr.next();
-      fail("Reached end of the list!");
-    } catch (NoSuchElementException nse) {
-      // expected
-    }
+    assertThrows(NoSuchElementException.class, () -> pathItr.next(), "Reached 
end of the list!");
   }
 
   @Test
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestSharedTmpDirAuthorizer.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestSharedTmpDirAuthorizer.java
index ff3609b810..ce5aa12c56 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestSharedTmpDirAuthorizer.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestSharedTmpDirAuthorizer.java
@@ -22,10 +22,12 @@ import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
-import org.mockito.Mockito;
 
 import java.util.stream.Stream;
 
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
 /**
  * Tests for {@link SharedTmpDirAuthorizer}.
  */
@@ -37,8 +39,8 @@ public class TestSharedTmpDirAuthorizer {
 
   @BeforeAll
   public static void setUp() {
-    nativeAuthorizer = Mockito.mock(OzoneNativeAuthorizer.class);
-    authorizer = Mockito.mock(TestOzoneAuthorizerFactory
+    nativeAuthorizer = mock(OzoneNativeAuthorizer.class);
+    authorizer = mock(TestOzoneAuthorizerFactory
                                   .MockThirdPartyAuthorizer.class);
 
     sharedTmpDirAuthorizer =
@@ -65,13 +67,13 @@ public class TestSharedTmpDirAuthorizer {
                                .setKeyName("key1")
                                .build();
 
-    RequestContext context = Mockito.mock(RequestContext.class);
+    RequestContext context = mock(RequestContext.class);
     sharedTmpDirAuthorizer.checkAccess(objInfo, context);
 
     if (isNative) {
-      Mockito.verify(nativeAuthorizer).checkAccess(objInfo, context);
+      verify(nativeAuthorizer).checkAccess(objInfo, context);
     } else {
-      Mockito.verify(authorizer).checkAccess(objInfo, context);
+      verify(authorizer).checkAccess(objInfo, context);
     }
   }
 }
diff --git 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/freon/containergenerator/TestGeneratorDatanode.java
 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/freon/containergenerator/TestGeneratorDatanode.java
index 7792e03e11..35a1ba20bb 100644
--- 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/freon/containergenerator/TestGeneratorDatanode.java
+++ 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/freon/containergenerator/TestGeneratorDatanode.java
@@ -16,12 +16,13 @@
  */
 package org.apache.hadoop.ozone.freon.containergenerator;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import java.util.Arrays;
 import java.util.HashSet;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 /**
  * Test datanode container generation placement.
  */
@@ -64,7 +65,7 @@ public class TestGeneratorDatanode {
       int maxDatanodes,
       int overlap,
       Integer... expectations) {
-    Assertions.assertEquals(
+    assertEquals(
         new HashSet<Integer>(Arrays.asList(expectations)),
         GeneratorDatanode.getPlacement(containerId, maxDatanodes, overlap));
   }
diff --git 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/scm/TestDecommissionScmSubcommand.java
 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/scm/TestDecommissionScmSubcommand.java
index 2cb3be1d0b..77191df75a 100644
--- 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/scm/TestDecommissionScmSubcommand.java
+++ 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/scm/TestDecommissionScmSubcommand.java
@@ -25,14 +25,14 @@ import org.apache.ozone.test.GenericTestUtils;
 
 import java.io.IOException;
 import java.util.UUID;
-
 import org.junit.jupiter.api.Test;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-import org.mockito.Mockito;
 
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.junit.jupiter.api.Assertions.fail;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
 import picocli.CommandLine;
 
 /**
@@ -66,7 +66,7 @@ public class TestDecommissionScmSubcommand {
             .setSuccess(true)
             .build();
 
-    Mockito.when(client.decommissionScm(any()))
+    when(client.decommissionScm(any()))
         .thenAnswer(invocation -> (
             response));
 
@@ -94,7 +94,7 @@ public class TestDecommissionScmSubcommand {
             .setErrorMsg("Cannot remove current leader.")
             .build();
 
-    Mockito.when(client.decommissionScm(any()))
+    when(client.decommissionScm(any()))
         .thenAnswer(invocation -> (
             response));
 
diff --git 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneAddress.java
 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneAddress.java
index e831bf5f67..8ace369b8c 100644
--- 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneAddress.java
+++ 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneAddress.java
@@ -23,10 +23,14 @@ import java.util.Collection;
 
 import org.apache.hadoop.ozone.client.OzoneClientException;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.MethodSource;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 
 /**
  * Test ozone URL parsing.
@@ -60,7 +64,7 @@ public class TestOzoneAddress {
   public void checkVolumeUrlType(String prefix) throws OzoneClientException {
     address = new OzoneAddress(prefix + "vol1");
     address.ensureVolumeAddress();
-    Assertions.assertEquals("vol1", address.getVolumeName());
+    assertEquals("vol1", address.getVolumeName());
   }
 
   @ParameterizedTest
@@ -68,13 +72,13 @@ public class TestOzoneAddress {
   public void checkBucketUrlType(String prefix) throws OzoneClientException {
     address = new OzoneAddress(prefix + "vol1/bucket");
     address.ensureBucketAddress();
-    Assertions.assertEquals("vol1", address.getVolumeName());
-    Assertions.assertEquals("bucket", address.getBucketName());
+    assertEquals("vol1", address.getVolumeName());
+    assertEquals("bucket", address.getBucketName());
 
     address = new OzoneAddress(prefix + "vol1/bucket/");
     address.ensureBucketAddress();
-    Assertions.assertEquals("vol1", address.getVolumeName());
-    Assertions.assertEquals("bucket", address.getBucketName());
+    assertEquals("vol1", address.getVolumeName());
+    assertEquals("bucket", address.getBucketName());
   }
 
   @ParameterizedTest
@@ -82,22 +86,22 @@ public class TestOzoneAddress {
   public void checkKeyUrlType(String prefix) throws OzoneClientException {
     address = new OzoneAddress(prefix + "vol1/bucket/key");
     address.ensureKeyAddress();
-    Assertions.assertEquals("vol1", address.getVolumeName());
-    Assertions.assertEquals("bucket", address.getBucketName());
-    Assertions.assertEquals("key", address.getKeyName());
+    assertEquals("vol1", address.getVolumeName());
+    assertEquals("bucket", address.getBucketName());
+    assertEquals("key", address.getKeyName());
 
     address = new OzoneAddress(prefix + "vol1/bucket/key/");
     address.ensureKeyAddress();
-    Assertions.assertEquals("vol1", address.getVolumeName());
-    Assertions.assertEquals("bucket", address.getBucketName());
-    Assertions.assertEquals("key/", address.getKeyName());
+    assertEquals("vol1", address.getVolumeName());
+    assertEquals("bucket", address.getBucketName());
+    assertEquals("key/", address.getKeyName());
 
     address = new OzoneAddress(prefix + "vol1/bucket/key1/key3/key");
     address.ensureKeyAddress();
-    Assertions.assertEquals("vol1", address.getVolumeName());
-    Assertions.assertEquals("bucket", address.getBucketName());
-    Assertions.assertEquals("key1/key3/key", address.getKeyName());
-    Assertions.assertFalse(address.isPrefix(), "this should not be a prefix");
+    assertEquals("vol1", address.getVolumeName());
+    assertEquals("bucket", address.getBucketName());
+    assertEquals("key1/key3/key", address.getKeyName());
+    assertFalse(address.isPrefix(), "this should not be a prefix");
   }
 
   @ParameterizedTest
@@ -105,10 +109,10 @@ public class TestOzoneAddress {
   public void checkPrefixUrlType(String prefix) throws OzoneClientException {
     address = new OzoneAddress(prefix + "vol1/bucket/prefix");
     address.ensurePrefixAddress();
-    Assertions.assertEquals("vol1", address.getVolumeName());
-    Assertions.assertEquals("bucket", address.getBucketName());
-    Assertions.assertEquals("prefix", address.getKeyName());
-    Assertions.assertTrue(address.isPrefix(), "this should be a prefix");
+    assertEquals("vol1", address.getVolumeName());
+    assertEquals("bucket", address.getBucketName());
+    assertEquals("prefix", address.getKeyName());
+    assertTrue(address.isPrefix(), "this should be a prefix");
   }
 
   @ParameterizedTest
@@ -116,11 +120,10 @@ public class TestOzoneAddress {
   public void checkSnapshotUrlType(String prefix) throws OzoneClientException {
     address = new OzoneAddress(prefix + "vol1/bucket/.snapshot/snap1");
     address.ensureSnapshotAddress();
-    Assertions.assertEquals("vol1", address.getVolumeName());
-    Assertions.assertEquals("bucket", address.getBucketName());
-    Assertions.assertEquals(".snapshot/snap1",
-        address.getSnapshotNameWithIndicator());
-    Assertions.assertEquals(".snapshot/snap1", address.getKeyName());
+    assertEquals("vol1", address.getVolumeName());
+    assertEquals("bucket", address.getBucketName());
+    assertEquals(".snapshot/snap1", address.getSnapshotNameWithIndicator());
+    assertEquals(".snapshot/snap1", address.getKeyName());
 
 
     String message = "Only a snapshot name with " +
@@ -128,9 +131,8 @@ public class TestOzoneAddress {
 
     address = new OzoneAddress(prefix + "vol1/bucket/.snapshot");
 
-    OzoneClientException exception = Assertions
-        .assertThrows(OzoneClientException.class,
+    OzoneClientException exception = assertThrows(OzoneClientException.class,
             () -> address.ensureSnapshotAddress());
-    Assertions.assertTrue(exception.getMessage().contains(message));
+    assertTrue(exception.getMessage().contains(message));
   }
 }
diff --git 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneAddressClientCreation.java
 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneAddressClientCreation.java
index 02bc2cade0..2457a00fe5 100644
--- 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneAddressClientCreation.java
+++ 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/TestOzoneAddressClientCreation.java
@@ -27,7 +27,10 @@ import org.apache.hadoop.ozone.client.OzoneClientException;
 import org.apache.hadoop.hdds.conf.InMemoryConfiguration;
 
 import static org.apache.hadoop.ozone.om.OMConfigKeys.OZONE_OM_SERVICE_IDS_KEY;
-import org.junit.jupiter.api.Assertions;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.junit.jupiter.api.Test;
 
@@ -41,7 +44,7 @@ public class TestOzoneAddressClientCreation {
     TestableOzoneAddress address =
         new TestableOzoneAddress("/vol1/bucket1/key1");
     address.createClient(new InMemoryConfiguration());
-    Assertions.assertTrue(address.simpleCreation);
+    assertTrue(address.simpleCreation);
   }
 
   @Test
@@ -51,8 +54,8 @@ public class TestOzoneAddressClientCreation {
         new TestableOzoneAddress("/vol1/bucket1/key1");
     address.createClient(
         new InMemoryConfiguration(OZONE_OM_SERVICE_IDS_KEY, "service1"));
-    Assertions.assertFalse(address.simpleCreation);
-    Assertions.assertEquals("service1", address.serviceId);
+    assertFalse(address.simpleCreation);
+    assertEquals("service1", address.serviceId);
   }
 
   @Test
@@ -60,7 +63,7 @@ public class TestOzoneAddressClientCreation {
       throws OzoneClientException, IOException {
     TestableOzoneAddress address =
         new TestableOzoneAddress("/vol1/bucket1/key1");
-    Assertions.assertThrows(OzoneClientException.class, () ->
+    assertThrows(OzoneClientException.class, () ->
         address.createClient(new 
InMemoryConfiguration(OZONE_OM_SERVICE_IDS_KEY,
             "service1,service2")));
   }
@@ -73,8 +76,8 @@ public class TestOzoneAddressClientCreation {
     address.createClient(
         new InMemoryConfiguration(OZONE_OM_SERVICE_IDS_KEY,
             "service1,service2"));
-    Assertions.assertFalse(address.simpleCreation);
-    Assertions.assertEquals("service1", address.serviceId);
+    assertFalse(address.simpleCreation);
+    assertEquals("service1", address.serviceId);
   }
 
   @Test
@@ -82,9 +85,9 @@ public class TestOzoneAddressClientCreation {
     TestableOzoneAddress address =
         new TestableOzoneAddress("o3://om:9862/vol1/bucket1/key1");
     address.createClient(new InMemoryConfiguration());
-    Assertions.assertFalse(address.simpleCreation);
-    Assertions.assertEquals("om", address.host);
-    Assertions.assertEquals(9862, address.port);
+    assertFalse(address.simpleCreation);
+    assertEquals("om", address.host);
+    assertEquals(9862, address.port);
   }
 
   @Test
@@ -94,9 +97,9 @@ public class TestOzoneAddressClientCreation {
         new TestableOzoneAddress("o3://om:9862/vol1/bucket1/key1");
     address.createClient(
         new InMemoryConfiguration(OZONE_OM_SERVICE_IDS_KEY, "service1"));
-    Assertions.assertFalse(address.simpleCreation);
-    Assertions.assertEquals("om", address.host);
-    Assertions.assertEquals(9862, address.port);
+    assertFalse(address.simpleCreation);
+    assertEquals("om", address.host);
+    assertEquals(9862, address.port);
   }
 
   @Test
@@ -107,9 +110,9 @@ public class TestOzoneAddressClientCreation {
     address.createClient(
         new InMemoryConfiguration(OZONE_OM_SERVICE_IDS_KEY,
             "service1,service2"));
-    Assertions.assertFalse(address.simpleCreation);
-    Assertions.assertEquals("om", address.host);
-    Assertions.assertEquals(9862, address.port);
+    assertFalse(address.simpleCreation);
+    assertEquals("om", address.host);
+    assertEquals(9862, address.port);
   }
 
   @Test
@@ -118,8 +121,8 @@ public class TestOzoneAddressClientCreation {
         new TestableOzoneAddress("o3://om/vol1/bucket1/key1");
     address.createClient(
         new InMemoryConfiguration(OZONE_OM_SERVICE_IDS_KEY, "service1"));
-    Assertions.assertFalse(address.simpleCreation);
-    Assertions.assertEquals("om", address.host);
+    assertFalse(address.simpleCreation);
+    assertEquals("om", address.host);
   }
 
   @Test
@@ -127,16 +130,16 @@ public class TestOzoneAddressClientCreation {
     TestableOzoneAddress address =
         new TestableOzoneAddress("o3://om:1234/vol1/bucket1/key1");
     address.createClient(new InMemoryConfiguration());
-    Assertions.assertFalse(address.simpleCreation);
-    Assertions.assertEquals("om", address.host);
-    Assertions.assertEquals(1234, address.port);
+    assertFalse(address.simpleCreation);
+    assertEquals("om", address.host);
+    assertEquals(1234, address.port);
   }
 
   @Test
   public void explicitWrongScheme() throws OzoneClientException, IOException {
     TestableOzoneAddress address =
         new TestableOzoneAddress("ssh://host/vol1/bucket1/key1");
-    Assertions.assertThrows(OzoneClientException.class, () ->
+    assertThrows(OzoneClientException.class, () ->
         address.createClient(new InMemoryConfiguration()));
   }
 
diff --git 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/keys/TestChecksumKeyHandler.java
 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/keys/TestChecksumKeyHandler.java
index c55cb9f55a..d4fa929614 100644
--- 
a/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/keys/TestChecksumKeyHandler.java
+++ 
b/hadoop-ozone/tools/src/test/java/org/apache/hadoop/ozone/shell/keys/TestChecksumKeyHandler.java
@@ -32,10 +32,8 @@ import org.apache.hadoop.ozone.shell.OzoneAddress;
 import org.apache.hadoop.ozone.client.checksum.CrcUtil;
 import org.apache.hadoop.util.DataChecksum;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.mockito.Mockito;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
@@ -43,8 +41,10 @@ import java.io.PrintStream;
 import java.io.UnsupportedEncodingException;
 import java.nio.charset.StandardCharsets;
 
-import static org.mockito.ArgumentMatchers.anyString;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.mockito.Mockito.anyString;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
 
 /**
  * Tests for ChecksumKeyHandler.
@@ -91,32 +91,30 @@ public class TestChecksumKeyHandler {
 
     ObjectStore objectStore = mock(ObjectStore.class);
     OzoneClient client = mock(OzoneClient.class);
-    Mockito.when(client.getObjectStore()).thenReturn(objectStore);
+    when(client.getObjectStore()).thenReturn(objectStore);
 
     OzoneVolume volume = mock(OzoneVolume.class);
     OzoneBucket bucket = mock(OzoneBucket.class);
     OzoneKeyDetails key = mock(OzoneKeyDetails.class);
 
-    Mockito.when(volume.getBucket(anyString())).thenReturn(bucket);
-    Mockito.when(bucket.getKey(anyString()))
-        .thenReturn(key);
-    Mockito.when(objectStore.getVolume(anyString())).
-        thenReturn(volume);
-    Mockito.when(key.getDataSize()).thenReturn(keySize);
+    when(volume.getBucket(anyString())).thenReturn(bucket);
+    when(bucket.getKey(anyString())).thenReturn(key);
+    when(objectStore.getVolume(anyString())).thenReturn(volume);
+    when(key.getDataSize()).thenReturn(keySize);
 
     cmd.execute(client, address);
 
     ObjectMapper mapper = new ObjectMapper();
     JsonNode json = mapper.readTree(outContent.toString("UTF-8"));
-    Assertions.assertEquals("volume", json.get("volumeName").asText());
-    Assertions.assertEquals("bucket", json.get("bucketName").asText());
-    Assertions.assertEquals("key", json.get("name").asText());
-    Assertions.assertEquals(keySize, json.get("dataSize").asLong());
-    Assertions.assertEquals("COMPOSITE-CRC32", json.get("algorithm").asText());
+    assertEquals("volume", json.get("volumeName").asText());
+    assertEquals("bucket", json.get("bucketName").asText());
+    assertEquals("key", json.get("name").asText());
+    assertEquals(keySize, json.get("dataSize").asLong());
+    assertEquals("COMPOSITE-CRC32", json.get("algorithm").asText());
 
     String expectedChecksum = javax.xml.bind.DatatypeConverter.printHexBinary(
         CrcUtil.intToBytes(Integer.valueOf(CHECKSUM)));
-    Assertions.assertEquals(expectedChecksum, json.get("checksum").asText());
+    assertEquals(expectedChecksum, json.get("checksum").asText());
   }
 
 }


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