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The following commit(s) were added to refs/heads/master by this push:
     new 029db3947c HDDS-10068. Add static import for assertions and mocks in 
OM integration tests (#5962)
029db3947c is described below

commit 029db3947ccf342bf03166e8f5036a17760fe3be
Author: Zhaohui Wang <[email protected]>
AuthorDate: Wed Jan 10 15:36:38 2024 +0800

    HDDS-10068. Add static import for assertions and mocks in OM integration 
tests (#5962)
---
 .../apache/hadoop/ozone/om/TestKeyManagerImpl.java | 15 +++--
 .../hadoop/ozone/om/TestOMDbCheckpointServlet.java | 62 +++++++++--------
 .../hadoop/ozone/om/TestOMRatisSnapshots.java      | 11 ++-
 .../ozone/om/TestOMStartupWithBucketLayout.java    |  7 +-
 .../org/apache/hadoop/ozone/om/TestOmConf.java     |  6 +-
 .../ozone/om/TestOmContainerLocationCache.java     | 18 +++--
 .../org/apache/hadoop/ozone/om/TestOmInit.java     |  4 +-
 .../org/apache/hadoop/ozone/om/TestOmMetrics.java  | 34 +++++-----
 .../hadoop/ozone/om/TestOmSnapshotDisabled.java    | 11 +--
 .../ozone/om/TestOmSnapshotDisabledRestart.java    |  7 +-
 .../ozone/om/TestOzoneManagerHAWithAllRunning.java | 78 +++++++++++-----------
 .../om/TestOzoneManagerHAWithStoppedNodes.java     | 14 ++--
 .../ozone/om/TestOzoneManagerListVolumes.java      | 13 ++--
 .../apache/hadoop/ozone/om/TestScmSafeMode.java    | 13 ++--
 .../ozone/om/TestSnapshotBackgroundServices.java   | 40 +++++------
 .../om/ratis/TestOzoneManagerRatisRequest.java     | 11 ++-
 .../ozone/om/service/TestRangerBGSyncService.java  |  3 +-
 .../om/snapshot/TestOzoneManagerSnapshotAcl.java   | 51 +++++++-------
 .../om/snapshot/TestOzoneSnapshotRestore.java      |  4 +-
 19 files changed, 210 insertions(+), 192 deletions(-)

diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerImpl.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerImpl.java
index 6d9f2f363c..23697d9283 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerImpl.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerImpl.java
@@ -125,8 +125,6 @@ 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 static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
@@ -137,6 +135,9 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.junit.jupiter.api.Assertions.fail;
 import static org.junit.jupiter.api.Assumptions.assumeFalse;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
@@ -202,7 +203,7 @@ public class TestKeyManagerImpl {
     conf.setLong(OZONE_KEY_PREALLOCATION_BLOCKS_MAX, 10);
 
     mockScmContainerClient =
-        Mockito.mock(StorageContainerLocationProtocol.class);
+        mock(StorageContainerLocationProtocol.class);
     
     OmTestManagers omTestManagers
         = new OmTestManagers(conf, scm.getBlockProtocolServer(),
@@ -215,12 +216,12 @@ public class TestKeyManagerImpl {
 
     mockContainerClient();
 
-    Mockito.when(mockScmBlockLocationProtocol
-        .allocateBlock(Mockito.anyLong(), Mockito.anyInt(),
+    when(mockScmBlockLocationProtocol
+        .allocateBlock(anyLong(), anyInt(),
             any(ReplicationConfig.class),
-            Mockito.anyString(),
+            anyString(),
             any(ExcludeList.class),
-            Mockito.anyString())).thenThrow(
+            anyString())).thenThrow(
                 new SCMException("SafeModePrecheck failed for allocateBlock",
             ResultCodes.SAFE_MODE_EXCEPTION));
     createVolume(VOLUME_NAME);
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMDbCheckpointServlet.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMDbCheckpointServlet.java
index fba6a72363..5e3d4d77c9 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMDbCheckpointServlet.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMDbCheckpointServlet.java
@@ -88,7 +88,6 @@ import static 
org.apache.hadoop.ozone.om.OMConfigKeys.OZONE_OM_HTTP_AUTH_TYPE;
 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;
@@ -96,7 +95,6 @@ import org.junit.jupiter.api.io.TempDir;
 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 static 
org.apache.hadoop.ozone.om.OMConfigKeys.OZONE_OM_RATIS_ENABLE_KEY;
 import static org.apache.hadoop.ozone.om.OmSnapshotManager.OM_HARDLINK_FILE;
@@ -106,6 +104,13 @@ import static 
org.apache.hadoop.ozone.om.snapshot.OmSnapshotUtils.truncateFileNa
 import static org.apache.hadoop.ozone.om.OmSnapshotManager.getSnapshotPath;
 import static 
org.apache.ozone.rocksdiff.RocksDBCheckpointDiffer.COMPACTION_LOG_FILE_NAME_SUFFIX;
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+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.params.provider.Arguments.arguments;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
@@ -207,7 +212,7 @@ public class TestOMDbCheckpointServlet {
     BootstrapStateHandler.Lock lock =
         new OMDBCheckpointServlet.Lock(cluster.getOzoneManager());
     doCallRealMethod().when(omDbCheckpointServletMock).init();
-    Assertions.assertNull(
+    assertNull(
         doCallRealMethod().when(omDbCheckpointServletMock).getDbStore());
 
     requestMock = mock(HttpServletRequest.class);
@@ -284,7 +289,7 @@ public class TestOMDbCheckpointServlet {
     assertThat(omMetrics.getDBCheckpointMetrics().getNumCheckpoints())
         .isGreaterThan(initialCheckpointCount);
 
-    Mockito.verify(omDbCheckpointServletMock).writeDbDataToStream(any(),
+    verify(omDbCheckpointServletMock).writeDbDataToStream(any(),
         any(), any(), eq(toExcludeList), any(), any());
   }
 
@@ -322,7 +327,7 @@ public class TestOMDbCheckpointServlet {
     omDbCheckpointServletMock.init();
     omDbCheckpointServletMock.doPost(requestMock, responseMock);
 
-    Mockito.verify(responseMock).setStatus(HttpServletResponse.SC_BAD_REQUEST);
+    verify(responseMock).setStatus(HttpServletResponse.SC_BAD_REQUEST);
   }
 
   @ParameterizedTest
@@ -454,10 +459,10 @@ public class TestOMDbCheckpointServlet {
     when(responseMock.getOutputStream()).thenReturn(servletOutputStream);
     long tmpHardLinkFileCount = tmpHardLinkFileCount();
     omDbCheckpointServletMock.doGet(requestMock, responseMock);
-    Assertions.assertEquals(tmpHardLinkFileCount, tmpHardLinkFileCount());
+    assertEquals(tmpHardLinkFileCount, tmpHardLinkFileCount());
 
     // Verify that tarball request count reaches to zero once doGet completes.
-    Assertions.assertEquals(0,
+    assertEquals(0,
         dbStore.getRocksDBCheckpointDiffer().getTarballRequestCount());
     dbCheckpoint = realCheckpoint.get();
 
@@ -467,11 +472,11 @@ public class TestOMDbCheckpointServlet {
     String newDbDirName = testDirName + OM_KEY_PREFIX + OM_DB_NAME;
     int newDbDirLength = newDbDirName.length() + 1;
     File newDbDir = new File(newDbDirName);
-    Assertions.assertTrue(newDbDir.mkdirs());
+    assertTrue(newDbDir.mkdirs());
     FileUtil.unTar(tempFile, newDbDir);
 
     // Move snapshot dir to correct location.
-    Assertions.assertTrue(new File(newDbDirName, OM_SNAPSHOT_DIR)
+    assertTrue(new File(newDbDirName, OM_SNAPSHOT_DIR)
         .renameTo(new File(newDbDir.getParent(), OM_SNAPSHOT_DIR)));
 
     // Confirm the checkpoint directories match, (after remove extras).
@@ -485,7 +490,7 @@ public class TestOMDbCheckpointServlet {
     assertThat(finalCheckpointSet).withFailMessage("hardlink file exists in 
checkpoint dir")
         .contains(OM_HARDLINK_FILE);
     finalCheckpointSet.remove(OM_HARDLINK_FILE);
-    Assertions.assertEquals(initialCheckpointSet, finalCheckpointSet);
+    assertEquals(initialCheckpointSet, finalCheckpointSet);
 
     String shortSnapshotLocation =
         truncateFileName(metaDirLength, Paths.get(snapshotDirName));
@@ -503,7 +508,7 @@ public class TestOMDbCheckpointServlet {
         OM_HARDLINK_FILE))) {
 
       for (String line : lines.collect(Collectors.toList())) {
-        Assertions.assertFalse(line.contains("CURRENT"),
+        assertFalse(line.contains("CURRENT"),
             "CURRENT file is not a hard link");
         if (line.contains(FABRICATED_FILE_NAME)) {
           fabricatedLinkLines.add(line);
@@ -530,7 +535,7 @@ public class TestOMDbCheckpointServlet {
     // from the expected data.
     initialFullSet.remove(unExpectedLogStr);
     initialFullSet.remove(unExpectedSstStr);
-    Assertions.assertEquals(initialFullSet, finalFullSet,
+    assertEquals(initialFullSet, finalFullSet,
         "expected snapshot files not found");
   }
 
@@ -579,7 +584,7 @@ public class TestOMDbCheckpointServlet {
     Set<String> finalCheckpointSet = getFiles(finalCheckpointLocation,
         testDirLength);
 
-    Assertions.assertEquals(initialCheckpointSet, finalCheckpointSet);
+    assertEquals(initialCheckpointSet, finalCheckpointSet);
   }
 
   @Test
@@ -597,7 +602,7 @@ public class TestOMDbCheckpointServlet {
         new FileOutputStream(dummyFile), StandardCharsets.UTF_8)) {
       writer.write("Dummy data.");
     }
-    Assertions.assertTrue(dummyFile.exists());
+    assertTrue(dummyFile.exists());
     List<String> toExcludeList = new ArrayList<>();
     List<String> excludedList = new ArrayList<>();
     toExcludeList.add(dummyFile.getName());
@@ -690,7 +695,7 @@ public class TestOMDbCheckpointServlet {
     // Use generated form data as input stream to the HTTP request
     InputStream input = new ByteArrayInputStream(
         sb.toString().getBytes(StandardCharsets.UTF_8));
-    ServletInputStream inputStream = Mockito.mock(ServletInputStream.class);
+    ServletInputStream inputStream = mock(ServletInputStream.class);
     when(requestMock.getInputStream()).thenReturn(inputStream);
     when(inputStream.read(any(byte[].class), anyInt(), anyInt()))
         .thenAnswer(invocation -> {
@@ -735,7 +740,7 @@ public class TestOMDbCheckpointServlet {
         new File(snapshotDirName).getParent(),
         "fabricatedSnapshot");
     fabricatedSnapshot.toFile().mkdirs();
-    Assertions.assertTrue(Paths.get(fabricatedSnapshot.toString(),
+    assertTrue(Paths.get(fabricatedSnapshot.toString(),
         FABRICATED_FILE_NAME).toFile().createNewFile());
 
     // Create fabricated links to snapshot dirs
@@ -823,32 +828,31 @@ public class TestOMDbCheckpointServlet {
     String realDir = null;
     for (String dir: directories) {
       if (Paths.get(testDirName, dir, FABRICATED_FILE_NAME).toFile().exists()) 
{
-        Assertions.assertNull(realDir,
-            "Exactly one copy of the fabricated file exists in the tarball");
+        assertNull(realDir, "Exactly one copy of the fabricated file exists in 
the tarball");
         realDir = dir;
       }
     }
 
-    Assertions.assertNotNull(realDir, "real directory found");
+    assertNotNull(realDir, "real directory found");
     directories.remove(realDir);
     Iterator<String> directoryIterator = directories.iterator();
     String dir0 = directoryIterator.next();
     String dir1 = directoryIterator.next();
-    Assertions.assertNotEquals("link directories are different", dir0, dir1);
+    assertNotEquals("link directories are different", dir0, dir1);
 
     for (String line : lines) {
       String[] files = line.split("\t");
-      Assertions.assertTrue(
+      assertTrue(
           files[0].startsWith(dir0) || files[0].startsWith(dir1),
           "fabricated entry contains valid first directory: " + line);
-      Assertions.assertTrue(files[1].startsWith(realDir),
+      assertTrue(files[1].startsWith(realDir),
           "fabricated entry contains correct real directory: " + line);
       Path path0 = Paths.get(files[0]);
       Path path1 = Paths.get(files[1]);
-      Assertions.assertEquals(FABRICATED_FILE_NAME,
+      assertEquals(FABRICATED_FILE_NAME,
           String.valueOf(path0.getFileName()),
           "fabricated entries contains correct file name: " + line);
-      Assertions.assertEquals(FABRICATED_FILE_NAME,
+      assertEquals(FABRICATED_FILE_NAME,
           String.valueOf(path1.getFileName()),
           "fabricated entries contains correct file name: " + line);
     }
@@ -860,13 +864,13 @@ public class TestOMDbCheckpointServlet {
                             String shortSnapshotLocation2,
                             String line) {
     String[] files = line.split("\t");
-    Assertions.assertTrue(files[0].startsWith(shortSnapshotLocation) ||
+    assertTrue(files[0].startsWith(shortSnapshotLocation) ||
         files[0].startsWith(shortSnapshotLocation2),
         "hl entry starts with valid snapshot dir: " + line);
 
     String file0 = files[0].substring(shortSnapshotLocation.length() + 1);
     String file1 = files[1];
-    Assertions.assertEquals(file0, file1, "hl filenames are the same");
+    assertEquals(file0, file1, "hl filenames are the same");
   }
 
   @Test
@@ -922,7 +926,7 @@ public class TestOMDbCheckpointServlet {
     // Confirm that servlet takes the lock when none of the other
     //  handlers have it.
     Future<Boolean> servletTest = checkLock(spyServlet, executorService);
-    Assertions.assertTrue(servletTest.get(10000, TimeUnit.MILLISECONDS));
+    assertTrue(servletTest.get(10000, TimeUnit.MILLISECONDS));
 
     executorService.shutdownNow();
 
@@ -934,7 +938,7 @@ public class TestOMDbCheckpointServlet {
       ExecutorService executorService) {
     Future<Boolean> test = checkLock(handler, executorService);
     // Handler should fail to take the lock because the servlet has taken it.
-    Assertions.assertThrows(TimeoutException.class,
+    assertThrows(TimeoutException.class,
          () -> test.get(500, TimeUnit.MILLISECONDS));
   }
 
@@ -946,7 +950,7 @@ public class TestOMDbCheckpointServlet {
         handler.getBootstrapStateLock().lock()) {
       Future<Boolean> test = checkLock(servlet, executorService);
       // Servlet should fail to lock when other handler has taken it.
-      Assertions.assertThrows(TimeoutException.class,
+      assertThrows(TimeoutException.class,
           () -> test.get(500, TimeUnit.MILLISECONDS));
     }
   }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMRatisSnapshots.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMRatisSnapshots.java
index d823b8d968..71c6bc1c97 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMRatisSnapshots.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMRatisSnapshots.java
@@ -55,7 +55,6 @@ import org.apache.ozone.test.tag.Unhealthy;
 import org.apache.ratis.server.protocol.TermIndex;
 import org.assertj.core.api.Fail;
 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.TestInfo;
@@ -336,8 +335,8 @@ public class TestOMRatisSnapshots {
             keys.get(keys.size() - 1)).build();
     OmKeyInfo omKeyInfo;
     omKeyInfo = followerOM.lookupKey(omKeyArgs);
-    Assertions.assertNotNull(omKeyInfo);
-    Assertions.assertEquals(omKeyInfo.getKeyName(), omKeyArgs.getKeyName());
+    assertNotNull(omKeyInfo);
+    assertEquals(omKeyInfo.getKeyName(), omKeyArgs.getKeyName());
 
     // Confirm followers snapshot hard links are as expected
     File followerMetaDir = OMStorage.getOmDbDir(followerOM.getConfiguration());
@@ -370,7 +369,7 @@ public class TestOMRatisSnapshots {
                 Paths.get(followerSnapshotDir.toString(), fileName);
             Path followerActiveSST =
                 Paths.get(followerActiveDir.toString(), fileName);
-            Assertions.assertEquals(
+            assertEquals(
                 OmSnapshotUtils.getINode(followerActiveSST),
                 OmSnapshotUtils.getINode(followerSnapshotSST),
                 "Snapshot sst file is supposed to be a hard link");
@@ -505,7 +504,7 @@ public class TestOMRatisSnapshots {
         firstIncrement.getSnapshotInfo());
     checkSnapshot(leaderOM, followerOM, "snap240", secondIncrement.getKeys(),
         secondIncrement.getSnapshotInfo());
-    Assertions.assertEquals(
+    assertEquals(
         followerOM.getOmSnapshotProvider().getInitCount(), 2,
         "Only initialized twice");
   }
@@ -651,7 +650,7 @@ public class TestOMRatisSnapshots {
     assertThat(sstList.size()).isGreaterThan(0);
     for (int i = 0; i < sstList.size(); i += 2) {
       File victimSst = new File(followerCandidateDir, sstList.get(i));
-      Assertions.assertTrue(victimSst.delete());
+      assertTrue(victimSst.delete());
     }
 
     // Resume the follower thread, it would download the full snapshot again
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMStartupWithBucketLayout.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMStartupWithBucketLayout.java
index 50cb298977..00b5b2a624 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMStartupWithBucketLayout.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOMStartupWithBucketLayout.java
@@ -16,6 +16,8 @@
  */
 package org.apache.hadoop.ozone.om;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 import org.apache.hadoop.hdds.utils.IOUtils;
 import org.apache.hadoop.hdds.conf.OzoneConfiguration;
 import org.apache.hadoop.ozone.MiniOzoneCluster;
@@ -23,7 +25,6 @@ import org.apache.hadoop.ozone.TestDataUtil;
 import org.apache.hadoop.ozone.client.OzoneBucket;
 import org.apache.hadoop.ozone.client.OzoneClient;
 import org.apache.hadoop.ozone.om.helpers.BucketLayout;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Timeout;
 
@@ -153,8 +154,8 @@ public class TestOMStartupWithBucketLayout {
 
   private void verifyBucketLayout(OzoneBucket bucket,
       BucketLayout metadataLayout) {
-    Assertions.assertNotNull(bucket);
-    Assertions.assertEquals(metadataLayout, bucket.getBucketLayout());
+    assertNotNull(bucket);
+    assertEquals(metadataLayout, bucket.getBucketLayout());
   }
 
 }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmConf.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmConf.java
index d46e0526b9..f9271b57af 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmConf.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmConf.java
@@ -17,13 +17,13 @@
  */
 package org.apache.hadoop.ozone.om;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import org.apache.hadoop.hdds.conf.OzoneConfiguration;
 import org.apache.hadoop.ozone.om.ratis.OzoneManagerRatisServer;
 import org.apache.hadoop.ozone.om.ratis.OzoneManagerRatisServerConfig;
 import org.apache.ratis.conf.RaftProperties;
 import org.apache.ratis.server.RaftServerConfigKeys;
 import org.apache.ratis.util.TimeDuration;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 /**
@@ -36,7 +36,7 @@ public class TestOmConf {
     final OzoneConfiguration conf = new OzoneConfiguration();
     final OzoneManagerRatisServerConfig ratisConf = conf.getObject(
         OzoneManagerRatisServerConfig.class);
-    Assertions.assertEquals(0, ratisConf.getLogAppenderWaitTimeMin(),
+    assertEquals(0, ratisConf.getLogAppenderWaitTimeMin(),
         "getLogAppenderWaitTimeMin");
     assertWaitTimeMin(TimeDuration.ZERO, conf);
 
@@ -51,7 +51,7 @@ public class TestOmConf {
     final RaftProperties p = OzoneManagerRatisServer.newRaftProperties(
         conf, 1000, "dummy/dir");
     final TimeDuration t = RaftServerConfigKeys.Log.Appender.waitTimeMin(p);
-    Assertions.assertEquals(expected, t,
+    assertEquals(expected, t,
         RaftServerConfigKeys.Log.Appender.WAIT_TIME_MIN_KEY);
   }
 }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmContainerLocationCache.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmContainerLocationCache.java
index fe1fdb54f6..5b6beebee2 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmContainerLocationCache.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmContainerLocationCache.java
@@ -82,7 +82,6 @@ import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 import org.mockito.ArgumentMatcher;
-import org.mockito.Mockito;
 
 import java.io.File;
 import java.io.IOException;
@@ -104,9 +103,14 @@ import static 
org.junit.jupiter.api.Assertions.assertArrayEquals;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.argThat;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
@@ -157,7 +161,7 @@ public class TestOmContainerLocationCache {
 
     mockScmBlockLocationProtocol = mock(ScmBlockLocationProtocol.class);
     mockScmContainerClient =
-        Mockito.mock(StorageContainerLocationProtocol.class);
+        mock(StorageContainerLocationProtocol.class);
 
     OmTestManagers omTestManagers = new OmTestManagers(conf,
         mockScmBlockLocationProtocol, mockScmContainerClient);
@@ -194,7 +198,7 @@ public class TestOmContainerLocationCache {
     when(manager.acquireClient(argThat(matchEmptyPipeline())))
         .thenCallRealMethod();
     when(manager.acquireClient(argThat(matchEmptyPipeline()),
-        Mockito.anyBoolean())).thenCallRealMethod();
+        anyBoolean())).thenCallRealMethod();
     when(manager.acquireClientForReadData(argThat(matchEmptyPipeline())))
         .thenCallRealMethod();
 
@@ -245,7 +249,7 @@ public class TestOmContainerLocationCache {
   @BeforeEach
   public void beforeEach() {
     CONTAINER_ID.getAndIncrement();
-    Mockito.reset(mockScmBlockLocationProtocol, mockScmContainerClient,
+    reset(mockScmBlockLocationProtocol, mockScmContainerClient,
         mockDn1Protocol, mockDn2Protocol);
     when(mockDn1Protocol.getPipeline()).thenReturn(createPipeline(DN1));
     when(mockDn2Protocol.getPipeline()).thenReturn(createPipeline(DN2));
@@ -618,11 +622,11 @@ public class TestOmContainerLocationCache {
         .setContainerBlockID(blockId)
         .build();
     when(mockScmBlockLocationProtocol
-        .allocateBlock(Mockito.anyLong(), Mockito.anyInt(),
+        .allocateBlock(anyLong(), anyInt(),
             any(ReplicationConfig.class),
-            Mockito.anyString(),
+            anyString(),
             any(ExcludeList.class),
-            Mockito.anyString()))
+            anyString()))
         .thenReturn(Collections.singletonList(block));
   }
 
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmInit.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmInit.java
index b9feec93a9..84387a232d 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmInit.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmInit.java
@@ -16,6 +16,7 @@
  */
 package org.apache.hadoop.ozone.om;
 
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.io.IOException;
 import java.util.UUID;
 
@@ -23,7 +24,6 @@ import org.apache.hadoop.hdds.conf.OzoneConfiguration;
 import org.apache.hadoop.ozone.MiniOzoneCluster;
 import 
org.apache.hadoop.security.authentication.client.AuthenticationException;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
@@ -85,7 +85,7 @@ public class TestOmInit {
     // Stop the Ozone Manager
     cluster.getOzoneManager().stop();
     // Now try to init the OM again. It should succeed
-    Assertions.assertTrue(OzoneManager.omInit(conf));
+    assertTrue(OzoneManager.omInit(conf));
   }
 
 }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmMetrics.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmMetrics.java
index cd92ed6acb..d1c43b185a 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmMetrics.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmMetrics.java
@@ -32,6 +32,9 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.spy;
 
 import java.io.IOException;
 import java.util.Collections;
@@ -86,7 +89,6 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Timeout;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.EnumSource;
-import org.mockito.Mockito;
 
 /**
  * Test for OM metrics.
@@ -142,7 +144,7 @@ public class TestOmMetrics {
     VolumeManager volumeManager =
         (VolumeManager) HddsWhiteboxTestUtils.getInternalState(
             ozoneManager, "volumeManager");
-    VolumeManager mockVm = Mockito.spy(volumeManager);
+    VolumeManager mockVm = spy(volumeManager);
 
     OmVolumeArgs volumeArgs = createVolumeArgs();
     doVolumeOps(volumeArgs);
@@ -170,8 +172,8 @@ public class TestOmMetrics {
 
 
     // inject exception to test for Failure Metrics on the read path
-    Mockito.doThrow(exception).when(mockVm).getVolumeInfo(any());
-    Mockito.doThrow(exception).when(mockVm).listVolumes(any(), any(),
+    doThrow(exception).when(mockVm).getVolumeInfo(any());
+    doThrow(exception).when(mockVm).listVolumes(any(), any(),
         any(), anyInt());
 
     HddsWhiteboxTestUtils.setInternalState(ozoneManager,
@@ -211,7 +213,7 @@ public class TestOmMetrics {
     BucketManager bucketManager =
         (BucketManager) HddsWhiteboxTestUtils.getInternalState(
             ozoneManager, "bucketManager");
-    BucketManager mockBm = Mockito.spy(bucketManager);
+    BucketManager mockBm = spy(bucketManager);
 
     OmBucketInfo bucketInfo = createBucketInfo(false);
     doBucketOps(bucketInfo);
@@ -245,8 +247,8 @@ public class TestOmMetrics {
     assertCounter("NumBuckets", 2L, omMetrics);
 
     // inject exception to test for Failure Metrics on the read path
-    Mockito.doThrow(exception).when(mockBm).getBucketInfo(any(), any());
-    Mockito.doThrow(exception).when(mockBm).listBuckets(any(), any(),
+    doThrow(exception).when(mockBm).getBucketInfo(any(), any());
+    doThrow(exception).when(mockBm).listBuckets(any(), any(),
         any(), anyInt(), eq(false));
 
     HddsWhiteboxTestUtils.setInternalState(
@@ -295,7 +297,7 @@ public class TestOmMetrics {
     String bucketName = UUID.randomUUID().toString();
     KeyManager keyManager = (KeyManager) HddsWhiteboxTestUtils
         .getInternalState(ozoneManager, "keyManager");
-    KeyManager mockKm = Mockito.spy(keyManager);
+    KeyManager mockKm = spy(keyManager);
     // see HDDS-10078 for making this work with FILE_SYSTEM_OPTIMIZED layout
     TestDataUtil.createVolumeAndBucket(client, volumeName, bucketName, 
BucketLayout.LEGACY);
     OmKeyArgs keyArgs = createKeyArgs(volumeName, bucketName,
@@ -348,10 +350,10 @@ public class TestOmMetrics {
     assertCounter("NumBlockAllocationFails", 1L, omMetrics);
 
     // inject exception to test for Failure Metrics on the read path
-    Mockito.doThrow(exception).when(mockKm).lookupKey(any(), any(), any());
-    Mockito.doThrow(exception).when(mockKm).listKeys(
+    doThrow(exception).when(mockKm).lookupKey(any(), any(), any());
+    doThrow(exception).when(mockKm).listKeys(
         any(), any(), any(), any(), anyInt());
-    Mockito.doThrow(exception).when(mockKm).listTrash(
+    doThrow(exception).when(mockKm).listTrash(
         any(), any(), any(), any(), anyInt());
     OmMetadataReader omMetadataReader =
         (OmMetadataReader) ozoneManager.getOmMetadataReader().get();
@@ -594,16 +596,16 @@ public class TestOmMetrics {
     }
     OMMetadataManager metadataManager = (OMMetadataManager)
         HddsWhiteboxTestUtils.getInternalState(ozoneManager, 
"metadataManager");
-    OMMetadataManager mockMm = Mockito.spy(metadataManager);
+    OMMetadataManager mockMm = spy(metadataManager);
     @SuppressWarnings("unchecked")
     Table<String, T> table = (Table<String, T>)
         HddsWhiteboxTestUtils.getInternalState(metadataManager, tableName);
-    Table<String, T> mockTable = Mockito.spy(table);
-    Mockito.doThrow(exception).when(mockTable).isExist(any());
+    Table<String, T> mockTable = spy(table);
+    doThrow(exception).when(mockTable).isExist(any());
     if (klass == OmBucketInfo.class) {
-      Mockito.doReturn(mockTable).when(mockMm).getBucketTable();
+      doReturn(mockTable).when(mockMm).getBucketTable();
     } else {
-      Mockito.doReturn(mockTable).when(mockMm).getVolumeTable();
+      doReturn(mockTable).when(mockMm).getVolumeTable();
     }
     HddsWhiteboxTestUtils.setInternalState(
         ozoneManager, "metadataManager", mockMm);
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmSnapshotDisabled.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmSnapshotDisabled.java
index 08c0676116..1e6cd96954 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmSnapshotDisabled.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmSnapshotDisabled.java
@@ -29,7 +29,6 @@ import org.apache.hadoop.ozone.client.OzoneVolume;
 import org.apache.hadoop.ozone.om.exceptions.OMException;
 import org.apache.hadoop.ozone.om.helpers.BucketLayout;
 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;
@@ -38,6 +37,8 @@ import java.util.UUID;
 
 import static org.apache.hadoop.hdds.HddsConfigKeys.HDDS_DB_PROFILE;
 import static 
org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes.FEATURE_NOT_ENABLED;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 /**
  * Integration test to verify Ozone snapshot RPCs throw exception when called.
@@ -95,12 +96,12 @@ public class TestOmSnapshotDisabled {
     volume.createBucket(bucketName);
 
     // create snapshot should throw
-    OMException omException = Assertions.assertThrows(OMException.class,
+    OMException omException = assertThrows(OMException.class,
         () -> store.createSnapshot(volumeName, bucketName, snapshotName));
-    Assertions.assertEquals(FEATURE_NOT_ENABLED, omException.getResult());
+    assertEquals(FEATURE_NOT_ENABLED, omException.getResult());
     // delete snapshot should throw
-    omException = Assertions.assertThrows(OMException.class,
+    omException = assertThrows(OMException.class,
         () -> store.deleteSnapshot(volumeName, bucketName, snapshotName));
-    Assertions.assertEquals(FEATURE_NOT_ENABLED, omException.getResult());
+    assertEquals(FEATURE_NOT_ENABLED, omException.getResult());
   }
 }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmSnapshotDisabledRestart.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmSnapshotDisabledRestart.java
index 613ebc58b5..6048f1e4d6 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmSnapshotDisabledRestart.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOmSnapshotDisabledRestart.java
@@ -27,7 +27,6 @@ import org.apache.hadoop.ozone.client.OzoneClient;
 import org.apache.hadoop.ozone.client.OzoneVolume;
 import org.apache.ozone.test.tag.Unhealthy;
 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;
@@ -35,6 +34,8 @@ import org.junit.jupiter.api.Timeout;
 import java.util.UUID;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.fail;
 
 /**
  * Integration test to verify that if snapshot feature is disabled, OM start up
@@ -102,7 +103,7 @@ public class TestOmSnapshotDisabledRestart {
         om.getConfiguration().setBoolean(
             OMConfigKeys.OZONE_FILESYSTEM_SNAPSHOT_ENABLED_KEY, false);
         // Restart OM, expect OM start up failure
-        RuntimeException rte = Assertions.assertThrows(RuntimeException.class,
+        RuntimeException rte = assertThrows(RuntimeException.class,
             () -> cluster.restartOzoneManager(om, true));
         assertThat(rte.getMessage()).contains("snapshots remaining");
         // Enable snapshot feature again
@@ -111,7 +112,7 @@ public class TestOmSnapshotDisabledRestart {
         // Should pass this time
         cluster.restartOzoneManager(om, true);
       } catch (Exception e) {
-        Assertions.fail("Failed to restart OM", e);
+        fail("Failed to restart OM", e);
       }
     });
   }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithAllRunning.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithAllRunning.java
index d55f6fd527..fbf80a8a87 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithAllRunning.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithAllRunning.java
@@ -49,7 +49,6 @@ import org.apache.ratis.protocol.Message;
 import org.apache.ratis.protocol.RaftClientReply;
 import org.apache.ratis.protocol.RaftClientRequest;
 import org.apache.ratis.server.RaftServer;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import javax.management.MBeanInfo;
@@ -78,9 +77,12 @@ import static 
org.apache.ratis.metrics.RatisMetrics.RATIS_APPLICATION_NAME_METRI
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 /**
  * Ozone Manager HA tests where all OMs are running throughout all tests.
@@ -334,7 +336,7 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
     omFailoverProxyProvider.performFailover(null);
 
     String newProxyNodeId = omFailoverProxyProvider.getCurrentProxyOMNodeId();
-    Assertions.assertNotEquals(leaderOMNodeId, newProxyNodeId);
+    assertNotEquals(leaderOMNodeId, newProxyNodeId);
 
     // Once another request is sent to this new proxy node, the leader
     // information must be returned via the response and a failover must
@@ -376,7 +378,7 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
       }
     }
     assertNotNull(followerOM);
-    Assertions.assertSame(followerOM.getOmRatisServer().checkLeaderStatus(),
+    assertSame(followerOM.getOmRatisServer().checkLeaderStatus(),
         OzoneManagerRatisServer.RaftServerStatus.NOT_LEADER);
 
     OzoneManagerProtocolProtos.OMRequest writeRequest =
@@ -685,20 +687,20 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
     ObjectStore objectStore = getObjectStore();
 
     boolean result = objectStore.addAcl(ozoneObj, userAcl);
-    Assertions.assertTrue(result);
+    assertTrue(result);
 
     result = objectStore.addAcl(ozoneObj, userAcl1);
-    Assertions.assertTrue(result);
+    assertTrue(result);
 
     result = objectStore.removeAcl(ozoneObj, userAcl);
-    Assertions.assertTrue(result);
+    assertTrue(result);
 
     // try removing already removed acl.
     result = objectStore.removeAcl(ozoneObj, userAcl);
-    Assertions.assertFalse(result);
+    assertFalse(result);
 
     result = objectStore.removeAcl(ozoneObj, userAcl1);
-    Assertions.assertTrue(result);
+    assertTrue(result);
 
   }
 
@@ -726,13 +728,13 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
     // Add ACL to the LINK and verify that it is added to the source bucket
     OzoneAcl acl1 = new OzoneAcl(USER, "remoteUser1", READ, DEFAULT);
     boolean addAcl = getObjectStore().addAcl(linkObj, acl1);
-    Assertions.assertTrue(addAcl);
+    assertTrue(addAcl);
     assertEqualsAcls(srcObj, linkObj);
 
     // Add ACL to the SOURCE and verify that it from link
     OzoneAcl acl2 = new OzoneAcl(USER, "remoteUser2", WRITE, DEFAULT);
     boolean addAcl2 = getObjectStore().addAcl(srcObj, acl2);
-    Assertions.assertTrue(addAcl2);
+    assertTrue(addAcl2);
     assertEqualsAcls(srcObj, linkObj);
 
   }
@@ -746,10 +748,10 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
     OzoneObj srcObj = buildBucketObj(srcBucket);
     // As by default create will add some default acls in RpcClient.
     List<OzoneAcl> acls = getObjectStore().getAcl(linkObj);
-    Assertions.assertTrue(acls.size() > 0);
+    assertTrue(acls.size() > 0);
     // Remove an existing acl.
     boolean removeAcl = getObjectStore().removeAcl(linkObj, acls.get(0));
-    Assertions.assertTrue(removeAcl);
+    assertTrue(removeAcl);
     assertEqualsAcls(srcObj, linkObj);
 
     // case2 : test remove src acl
@@ -759,10 +761,10 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
     OzoneObj srcObj2 = buildBucketObj(srcBucket2);
     // As by default create will add some default acls in RpcClient.
     List<OzoneAcl> acls2 = getObjectStore().getAcl(srcObj2);
-    Assertions.assertTrue(acls2.size() > 0);
+    assertTrue(acls2.size() > 0);
     // Remove an existing acl.
     boolean removeAcl2 = getObjectStore().removeAcl(srcObj2, acls.get(0));
-    Assertions.assertTrue(removeAcl2);
+    assertTrue(removeAcl2);
     assertEqualsAcls(srcObj2, linkObj2);
 
   }
@@ -779,14 +781,14 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
     List<OzoneAcl> acl1 = Collections.singletonList(
         new OzoneAcl(USER, "remoteUser1", READ, DEFAULT));
     boolean setAcl1 = getObjectStore().setAcl(linkObj, acl1);
-    Assertions.assertTrue(setAcl1);
+    assertTrue(setAcl1);
     assertEqualsAcls(srcObj, linkObj);
 
     // Set ACL to the SOURCE and verify that it from link
     List<OzoneAcl> acl2 = Collections.singletonList(
         new OzoneAcl(USER, "remoteUser2", WRITE, DEFAULT));
     boolean setAcl2 = getObjectStore().setAcl(srcObj, acl2);
-    Assertions.assertTrue(setAcl2);
+    assertTrue(setAcl2);
     assertEqualsAcls(srcObj, linkObj);
 
   }
@@ -889,7 +891,7 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
     if (linkObj.getResourceType() == OzoneObj.ResourceType.BUCKET) {
       linkObj = getSourceBucketObj(linkObj);
     }
-    Assertions.assertEquals(getObjectStore().getAcl(srcObj),
+    assertEquals(getObjectStore().getAcl(srcObj),
         getObjectStore().getAcl(linkObj));
   }
 
@@ -921,7 +923,7 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
         OzoneObj.ResourceType.PREFIX.name())) {
       List<OzoneAcl> acls = objectStore.getAcl(ozoneObj);
 
-      Assertions.assertTrue(acls.size() > 0);
+      assertTrue(acls.size() > 0);
     }
 
     OzoneAcl modifiedUserAcl = new OzoneAcl(USER, remoteUserName,
@@ -929,15 +931,15 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
 
     List<OzoneAcl> newAcls = Collections.singletonList(modifiedUserAcl);
     boolean setAcl = objectStore.setAcl(ozoneObj, newAcls);
-    Assertions.assertTrue(setAcl);
+    assertTrue(setAcl);
 
     // Get acls and check whether they are reset or not.
     List<OzoneAcl> getAcls = objectStore.getAcl(ozoneObj);
 
-    Assertions.assertEquals(newAcls.size(), getAcls.size());
+    assertEquals(newAcls.size(), getAcls.size());
     int i = 0;
     for (OzoneAcl ozoneAcl : newAcls) {
-      Assertions.assertTrue(compareAcls(getAcls.get(i++), ozoneAcl));
+      assertTrue(compareAcls(getAcls.get(i++), ozoneAcl));
     }
 
   }
@@ -946,42 +948,42 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
       OzoneAcl userAcl) throws Exception {
     ObjectStore objectStore = getObjectStore();
     boolean addAcl = objectStore.addAcl(ozoneObj, userAcl);
-    Assertions.assertTrue(addAcl);
+    assertTrue(addAcl);
 
     List<OzoneAcl> acls = objectStore.getAcl(ozoneObj);
 
-    Assertions.assertTrue(containsAcl(userAcl, acls));
+    assertTrue(containsAcl(userAcl, acls));
 
     // Add an already existing acl.
     addAcl = objectStore.addAcl(ozoneObj, userAcl);
-    Assertions.assertFalse(addAcl);
+    assertFalse(addAcl);
 
     // Add an acl by changing acl type with same type, name and scope.
     userAcl = new OzoneAcl(USER, remoteUserName,
         WRITE, DEFAULT);
     addAcl = objectStore.addAcl(ozoneObj, userAcl);
-    Assertions.assertTrue(addAcl);
+    assertTrue(addAcl);
   }
 
   private void testAddLinkAcl(String remoteUserName, OzoneObj ozoneObj,
       OzoneAcl userAcl) throws Exception {
     ObjectStore objectStore = getObjectStore();
     boolean addAcl = objectStore.addAcl(ozoneObj, userAcl);
-    Assertions.assertTrue(addAcl);
+    assertTrue(addAcl);
 
     List<OzoneAcl> acls = objectStore.getAcl(ozoneObj);
 
-    Assertions.assertTrue(containsAcl(userAcl, acls));
+    assertTrue(containsAcl(userAcl, acls));
 
     // Add an already existing acl.
     addAcl = objectStore.addAcl(ozoneObj, userAcl);
-    Assertions.assertFalse(addAcl);
+    assertFalse(addAcl);
 
     // Add an acl by changing acl type with same type, name and scope.
     userAcl = new OzoneAcl(USER, remoteUserName,
         WRITE, DEFAULT);
     addAcl = objectStore.addAcl(ozoneObj, userAcl);
-    Assertions.assertTrue(addAcl);
+    assertTrue(addAcl);
   }
 
   private void testRemoveAcl(String remoteUserName, OzoneObj ozoneObj,
@@ -991,30 +993,30 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
     // As by default create will add some default acls in RpcClient.
     List<OzoneAcl> acls = objectStore.getAcl(ozoneObj);
 
-    Assertions.assertTrue(acls.size() > 0);
+    assertTrue(acls.size() > 0);
 
     // Remove an existing acl.
     boolean removeAcl = objectStore.removeAcl(ozoneObj, acls.get(0));
-    Assertions.assertTrue(removeAcl);
+    assertTrue(removeAcl);
 
     // Trying to remove an already removed acl.
     removeAcl = objectStore.removeAcl(ozoneObj, acls.get(0));
-    Assertions.assertFalse(removeAcl);
+    assertFalse(removeAcl);
 
     boolean addAcl = objectStore.addAcl(ozoneObj, userAcl);
-    Assertions.assertTrue(addAcl);
+    assertTrue(addAcl);
 
     // Just changed acl type here to write, rest all is same as defaultUserAcl.
     OzoneAcl modifiedUserAcl = new OzoneAcl(USER, remoteUserName,
         WRITE, DEFAULT);
     addAcl = objectStore.addAcl(ozoneObj, modifiedUserAcl);
-    Assertions.assertTrue(addAcl);
+    assertTrue(addAcl);
 
     removeAcl = objectStore.removeAcl(ozoneObj, modifiedUserAcl);
-    Assertions.assertTrue(removeAcl);
+    assertTrue(removeAcl);
 
     removeAcl = objectStore.removeAcl(ozoneObj, userAcl);
-    Assertions.assertTrue(removeAcl);
+    assertTrue(removeAcl);
   }
 
   @Test
@@ -1058,7 +1060,7 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
           return true;
         }
       } catch (IOException ex) {
-        Assertions.fail("test failed during transactionInfo read");
+        fail("test failed during transactionInfo read");
       }
       return false;
     }, 1000, 100000);
@@ -1087,7 +1089,7 @@ class TestOzoneManagerHAWithAllRunning extends 
TestOzoneManagerHA {
           return true;
         }
       } catch (IOException ex) {
-        Assertions.fail("test failed during transactionInfo read");
+        fail("test failed during transactionInfo read");
       }
       return false;
     }, 1000, 100000);
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithStoppedNodes.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithStoppedNodes.java
index 99b9cac544..ab9f6382f0 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithStoppedNodes.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithStoppedNodes.java
@@ -44,7 +44,6 @@ import org.apache.ratis.conf.RaftProperties;
 import org.apache.ratis.server.RaftServerConfigKeys;
 import org.apache.ratis.util.TimeDuration;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.MethodOrderer;
 import org.junit.jupiter.api.Order;
@@ -65,8 +64,11 @@ import static 
org.apache.hadoop.ozone.MiniOzoneHAClusterImpl.NODE_FAILURE_TIMEOU
 import static 
org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_CLIENT_WAIT_BETWEEN_RETRIES_MILLIS_DEFAULT;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.fail;
 
 /**
  * Ozone Manager HA tests that stop/restart one or more OM nodes.
@@ -174,7 +176,7 @@ public class TestOzoneManagerHAWithStoppedNodes extends 
TestOzoneManagerHA {
             ReplicationFactor.ONE);
 
     String uploadID = omMultipartInfo.getUploadID();
-    Assertions.assertNotNull(uploadID);
+    assertNotNull(uploadID);
     return uploadID;
   }
 
@@ -193,8 +195,8 @@ public class TestOzoneManagerHAWithStoppedNodes extends 
TestOzoneManagerHA {
     OmMultipartUploadCompleteInfo omMultipartUploadCompleteInfo =
         ozoneBucket.completeMultipartUpload(keyName, uploadID, partsMap);
 
-    Assertions.assertNotNull(omMultipartUploadCompleteInfo);
-    Assertions.assertNotNull(omMultipartUploadCompleteInfo.getHash());
+    assertNotNull(omMultipartUploadCompleteInfo);
+    assertNotNull(omMultipartUploadCompleteInfo.getHash());
 
 
     try (OzoneInputStream ozoneInputStream = ozoneBucket.readKey(keyName)) {
@@ -364,7 +366,7 @@ public class TestOzoneManagerHAWithStoppedNodes extends 
TestOzoneManagerHA {
 
     }
 
-    Assertions.assertFalse(ozoneMultipartUploadPartListParts.isTruncated());
+    assertFalse(ozoneMultipartUploadPartListParts.isTruncated());
   }
 
   /**
@@ -441,7 +443,7 @@ public class TestOzoneManagerHAWithStoppedNodes extends 
TestOzoneManagerHA {
         },
             10000, 120000);
       } catch (Exception ex) {
-        Assertions.fail("TestOzoneManagerHAKeyDeletion failed");
+        fail("TestOzoneManagerHAKeyDeletion failed");
       }
     });
   }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerListVolumes.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerListVolumes.java
index 530da077c3..3abcba4a9a 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerListVolumes.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerListVolumes.java
@@ -46,8 +46,10 @@ import static 
org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_ACL_AUTHORIZER_CLASS
 import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_ACL_ENABLED;
 import static 
org.apache.hadoop.ozone.om.OMConfigKeys.OZONE_OM_VOLUME_LISTALL_ALLOWED;
 import static org.apache.hadoop.ozone.security.acl.OzoneObj.StoreType.OZONE;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeAll;
@@ -174,8 +176,7 @@ public class TestOzoneManagerListVolumes {
                                    String aclString) throws IOException {
     OzoneObj obj = OzoneObjInfo.Builder.newBuilder().setVolumeName(volumeName)
         .setResType(OzoneObj.ResourceType.VOLUME).setStoreType(OZONE).build();
-    Assertions.assertTrue(objectStore.setAcl(
-        obj, OzoneAcl.parseAcls(aclString)));
+    assertTrue(objectStore.setAcl(obj, OzoneAcl.parseAcls(aclString)));
   }
 
   /**
@@ -208,7 +209,7 @@ public class TestOzoneManagerListVolumes {
         String volumeName = vol.getName();
         accessibleVolumes.add(volumeName);
       }
-      Assertions.assertEquals(new HashSet<>(expectVol), accessibleVolumes);
+      assertEquals(new HashSet<>(expectVol), accessibleVolumes);
     } catch (RuntimeException ex) {
       if (expectListByUserSuccess) {
         throw ex;
@@ -234,11 +235,11 @@ public class TestOzoneManagerListVolumes {
         it.next();
         count++;
       }
-      Assertions.assertEquals(5, count);
+      assertEquals(5, count);
     } else {
       try {
         objectStore.listVolumes("volume");
-        Assertions.fail("listAllVolumes should fail for " + 
user.getUserName());
+        fail("listAllVolumes should fail for " + user.getUserName());
       } catch (RuntimeException ex) {
         // Current listAllVolumes throws RuntimeException
         if (ex.getCause() instanceof OMException) {
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestScmSafeMode.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestScmSafeMode.java
index d8e8580ae4..0a8c256b46 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestScmSafeMode.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestScmSafeMode.java
@@ -44,7 +44,6 @@ import 
org.apache.hadoop.ozone.common.statemachine.InvalidStateTransitionExcepti
 import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
 import org.apache.ozone.test.GenericTestUtils;
 import org.apache.ozone.test.tag.Unhealthy;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -159,7 +158,7 @@ public class TestScmSafeMode {
     StorageContainerManager scm;
 
     scm = cluster.getStorageContainerManager();
-    Assertions.assertTrue(scm.isInSafeMode());
+    assertTrue(scm.isInSafeMode());
 
     om = cluster.getOzoneManager();
 
@@ -182,20 +181,20 @@ public class TestScmSafeMode {
   @Test
   public void testIsScmInSafeModeAndForceExit() throws Exception {
     // Test 1: SCM should be out of safe mode.
-    Assertions.assertFalse(storageContainerLocationClient.inSafeMode());
+    assertFalse(storageContainerLocationClient.inSafeMode());
     cluster.stop();
     // Restart the cluster with same metadata dir.
 
     try {
       cluster = builder.build();
     } catch (IOException e) {
-      Assertions.fail("Cluster startup failed.");
+      fail("Cluster startup failed.");
     }
 
     // Test 2: Scm should be in safe mode as datanodes are not started yet.
     storageContainerLocationClient = cluster
         .getStorageContainerLocationClient();
-    Assertions.assertTrue(storageContainerLocationClient.inSafeMode());
+    assertTrue(storageContainerLocationClient.inSafeMode());
     // Force scm out of safe mode.
     cluster.getStorageContainerManager().getClientProtocolServer()
         .forceExitSafeMode();
@@ -205,7 +204,7 @@ public class TestScmSafeMode {
         return !cluster.getStorageContainerManager().getClientProtocolServer()
             .inSafeMode();
       } catch (IOException e) {
-        Assertions.fail("Cluster");
+        fail("Cluster");
         return false;
       }
     }, 10, 1000 * 5);
@@ -220,7 +219,7 @@ public class TestScmSafeMode {
     try {
       cluster = builder.build();
     } catch (IOException e) {
-      Assertions.fail("Cluster startup failed.");
+      fail("Cluster startup failed.");
     }
     assertTrue(cluster.getStorageContainerManager().isInSafeMode());
     cluster.startHddsDatanodes();
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestSnapshotBackgroundServices.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestSnapshotBackgroundServices.java
index cc78452c7c..dd0af27c95 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestSnapshotBackgroundServices.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestSnapshotBackgroundServices.java
@@ -51,7 +51,6 @@ import org.apache.ozone.test.LambdaTestUtils;
 import org.apache.ozone.test.tag.Flaky;
 import org.apache.ratis.server.protocol.TermIndex;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -81,6 +80,9 @@ import static 
org.apache.hadoop.ozone.om.OmSnapshotManager.getSnapshotPath;
 import static org.apache.hadoop.ozone.om.OmSnapshotManager.getSnapshotPrefix;
 import static 
org.apache.hadoop.ozone.om.TestOzoneManagerHAWithStoppedNodes.createKey;
 import static 
org.apache.hadoop.ozone.snapshot.SnapshotDiffResponse.JobStatus.DONE;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.fail;
 
 /**
  * Tests snapshot background services.
@@ -222,7 +224,7 @@ public class TestSnapshotBackgroundServices {
         getNewLeader(leaderOM, followerOM.getOMNodeId(), followerOM);
     OzoneManager newFollowerOM =
         cluster.getOzoneManager(leaderOM.getOMNodeId());
-    Assertions.assertEquals(leaderOM, newFollowerOM);
+    assertEquals(leaderOM, newFollowerOM);
 
     SnapshotInfo newSnapshot = createOzoneSnapshot(newLeaderOM,
         SNAPSHOT_NAME_PREFIX + RandomStringUtils.randomNumeric(5));
@@ -247,12 +249,12 @@ public class TestSnapshotBackgroundServices {
         .getMetadataManager()
         .getKeyTable(ozoneBucket.getBucketLayout());
     OmKeyInfo keyInfoA = omKeyInfoTable.get(keyA);
-    Assertions.assertNotNull(keyInfoA);
+    assertNotNull(keyInfoA);
 
     // create snapshot b
     SnapshotInfo snapshotInfoB = createOzoneSnapshot(newLeaderOM,
         SNAPSHOT_NAME_PREFIX + RandomStringUtils.randomNumeric(5));
-    Assertions.assertNotNull(snapshotInfoB);
+    assertNotNull(snapshotInfoB);
 
     // delete key a
     ozoneBucket.deleteKey(keyNameA);
@@ -270,7 +272,7 @@ public class TestSnapshotBackgroundServices {
         .getOmSnapshotManager()
         .checkForSnapshot(volumeName, bucketName,
             getSnapshotPrefix(snapshotInfoC.getName()), true)) {
-      Assertions.assertNotNull(rcC);
+      assertNotNull(rcC);
       snapC = (OmSnapshot) rcC.get();
     }
 
@@ -296,7 +298,7 @@ public class TestSnapshotBackgroundServices {
         .getOmSnapshotManager()
         .checkForSnapshot(volumeName, bucketName,
             getSnapshotPrefix(snapshotInfoD.getName()), true)) {
-      Assertions.assertNotNull(rcD);
+      assertNotNull(rcD);
       snapD = (OmSnapshot) rcD.get();
     }
 
@@ -403,23 +405,23 @@ public class TestSnapshotBackgroundServices {
         getNewLeader(leaderOM, followerOM.getOMNodeId(), followerOM);
     OzoneManager newFollowerOM =
         cluster.getOzoneManager(leaderOM.getOMNodeId());
-    Assertions.assertEquals(leaderOM, newFollowerOM);
+    assertEquals(leaderOM, newFollowerOM);
 
     List<CompactionLogEntry> compactionLogEntriesOnPreviousLeader =
         getCompactionLogEntries(leaderOM);
 
     List<CompactionLogEntry> compactionLogEntriesOnNewLeader =
         getCompactionLogEntries(newLeaderOM);
-    Assertions.assertEquals(compactionLogEntriesOnPreviousLeader,
+    assertEquals(compactionLogEntriesOnPreviousLeader,
         compactionLogEntriesOnNewLeader);
 
-    Assertions.assertEquals(leaderOM.getMetadataManager().getStore()
+    assertEquals(leaderOM.getMetadataManager().getStore()
             .getRocksDBCheckpointDiffer().getForwardCompactionDAG().nodes()
             .stream().map(CompactionNode::getFileName).collect(toSet()),
         newLeaderOM.getMetadataManager().getStore()
             .getRocksDBCheckpointDiffer().getForwardCompactionDAG().nodes()
             .stream().map(CompactionNode::getFileName).collect(toSet()));
-    Assertions.assertEquals(leaderOM.getMetadataManager().getStore()
+    assertEquals(leaderOM.getMetadataManager().getStore()
             .getRocksDBCheckpointDiffer().getForwardCompactionDAG().edges()
             .stream().map(edge ->
                 edge.source().getFileName() + "-" + 
edge.target().getFileName())
@@ -467,13 +469,13 @@ public class TestSnapshotBackgroundServices {
         getNewLeader(leaderOM, followerOM.getOMNodeId(), followerOM);
     OzoneManager newFollowerOM =
         cluster.getOzoneManager(leaderOM.getOMNodeId());
-    Assertions.assertEquals(leaderOM, newFollowerOM);
+    assertEquals(leaderOM, newFollowerOM);
 
     createSnapshotsEachWithNewKeys(newLeaderOM);
 
     File sstBackupDir = getSstBackupDir(newLeaderOM);
     File[] files = sstBackupDir.listFiles();
-    Assertions.assertNotNull(files);
+    assertNotNull(files);
     int numberOfSstFiles = files.length;
 
     resumeBackupCompactionFilesPruning(newLeaderOM);
@@ -522,7 +524,7 @@ public class TestSnapshotBackgroundServices {
         getNewLeader(leaderOM, followerOM.getOMNodeId(), followerOM);
     OzoneManager newFollowerOM =
         cluster.getOzoneManager(leaderOM.getOMNodeId());
-    Assertions.assertEquals(leaderOM, newFollowerOM);
+    assertEquals(leaderOM, newFollowerOM);
 
     checkIfSnapshotGetsProcessedBySFS(newLeaderOM);
 
@@ -542,7 +544,7 @@ public class TestSnapshotBackgroundServices {
             RandomStringUtils.randomNumeric(10)).getName();
     SnapshotDiffReportOzone diff = getSnapDiffReport(volumeName, bucketName,
         firstSnapshot, secondSnapshot);
-    Assertions.assertEquals(Collections.singletonList(
+    assertEquals(Collections.singletonList(
             SnapshotDiffReportOzone.getDiffReportEntry(
                 SnapshotDiffReport.DiffType.CREATE, diffKey, null)),
         diff.getDiffList());
@@ -565,9 +567,9 @@ public class TestSnapshotBackgroundServices {
         .getStore()
         .getRocksDBCheckpointDiffer()
         .getSSTBackupDir();
-    Assertions.assertNotNull(sstBackupDirPath);
+    assertNotNull(sstBackupDirPath);
     File sstBackupDir = new File(sstBackupDirPath);
-    Assertions.assertNotNull(sstBackupDir);
+    assertNotNull(sstBackupDir);
     return sstBackupDir;
   }
 
@@ -577,7 +579,7 @@ public class TestSnapshotBackgroundServices {
     SnapshotInfo newSnapshot = createOzoneSnapshot(ozoneManager,
         TestSnapshotBackgroundServices.SNAPSHOT_NAME_PREFIX +
             RandomStringUtils.randomNumeric(5));
-    Assertions.assertNotNull(newSnapshot);
+    assertNotNull(newSnapshot);
     Table<String, SnapshotInfo> snapshotInfoTable =
         ozoneManager.getMetadataManager().getSnapshotInfoTable();
     GenericTestUtils.waitFor(() -> {
@@ -585,7 +587,7 @@ public class TestSnapshotBackgroundServices {
       try {
         snapshotInfo = snapshotInfoTable.get(newSnapshot.getTableKey());
       } catch (IOException e) {
-        Assertions.fail();
+        fail();
       }
       return snapshotInfo.isSstFiltered();
     }, 1000, 10000);
@@ -597,7 +599,7 @@ public class TestSnapshotBackgroundServices {
       throws IOException, TimeoutException, InterruptedException {
     verifyLeadershipTransfer(leaderOM, followerNodeId, followerOM);
     OzoneManager newLeaderOM = cluster.getOMLeader();
-    Assertions.assertEquals(followerOM, newLeaderOM);
+    assertEquals(followerOM, newLeaderOM);
     return newLeaderOM;
   }
 
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
index d25cdf298e..6d396cf3af 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
@@ -36,7 +36,6 @@ import 
org.apache.hadoop.ozone.protocolPB.OzoneManagerProtocolServerSideTranslat
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Timeout;
 import org.junit.jupiter.api.io.TempDir;
-import org.mockito.Mockito;
 
 import java.io.IOException;
 import java.nio.file.Path;
@@ -45,6 +44,7 @@ import java.util.ArrayList;
 import static 
org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.Status.INVALID_REQUEST;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
 /**
@@ -62,7 +62,7 @@ public class TestOzoneManagerRatisRequest {
 
   @Test
   public void testRequestWithNonExistentBucket() throws Exception {
-    ozoneManager = Mockito.mock(OzoneManager.class);
+    ozoneManager = mock(OzoneManager.class);
     ozoneConfiguration.set(OMConfigKeys.OZONE_OM_DB_DIRS,
         folder.resolve("om").toAbsolutePath().toString());
     omMetadataManager = new OmMetadataManagerImpl(ozoneConfiguration,
@@ -103,7 +103,7 @@ public class TestOzoneManagerRatisRequest {
             .setClientId("test-client-id")
             .build();
 
-    ozoneManager = Mockito.mock(OzoneManager.class);
+    ozoneManager = mock(OzoneManager.class);
     ozoneConfiguration.set(OMConfigKeys.OZONE_OM_DB_DIRS,
         folder.resolve("om").toAbsolutePath().toString());
     omMetadataManager = new OmMetadataManagerImpl(ozoneConfiguration,
@@ -111,10 +111,9 @@ public class TestOzoneManagerRatisRequest {
     when(ozoneManager.getMetadataManager()).thenReturn(omMetadataManager);
     when(ozoneManager.getConfiguration()).thenReturn(ozoneConfiguration);
 
-    OzoneManagerRatisServer ratisServer =
-        Mockito.mock(OzoneManagerRatisServer.class);
+    OzoneManagerRatisServer ratisServer = mock(OzoneManagerRatisServer.class);
     ProtocolMessageMetrics<ProtocolMessageEnum> protocolMessageMetrics =
-        Mockito.mock(ProtocolMessageMetrics.class);
+        mock(ProtocolMessageMetrics.class);
     long lastTransactionIndexForNonRatis = 100L;
 
     OzoneManagerProtocolProtos.OMResponse expectedResponse =
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/service/TestRangerBGSyncService.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/service/TestRangerBGSyncService.java
index c01d0c9044..161d1b755a 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/service/TestRangerBGSyncService.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/service/TestRangerBGSyncService.java
@@ -53,7 +53,6 @@ import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.Timeout;
 import org.junit.jupiter.api.io.TempDir;
-import org.mockito.Mockito;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.slf4j.event.Level;
@@ -233,7 +232,7 @@ public class TestRangerBGSyncService {
         ozoneManager.getMetadataManager().getMetaTable().put(
             OzoneConsts.RANGER_OZONE_SERVICE_VERSION_KEY, String.valueOf(v));
         return null;
-      }).when(omRatisServer).submitRequest(Mockito.any(), Mockito.any());
+      }).when(omRatisServer).submitRequest(any(), any());
     } catch (ServiceException e) {
       throw new RuntimeException(e);
     }
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOzoneManagerSnapshotAcl.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOzoneManagerSnapshotAcl.java
index b2074b49fe..efe854dbc3 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOzoneManagerSnapshotAcl.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOzoneManagerSnapshotAcl.java
@@ -50,7 +50,6 @@ import org.apache.hadoop.ozone.security.acl.OzoneObj;
 import org.apache.hadoop.ozone.security.acl.OzoneObjInfo;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.junit.jupiter.api.AfterAll;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Timeout;
 import org.junit.jupiter.params.ParameterizedTest;
@@ -66,6 +65,9 @@ import static 
org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_ACL_ENABLED;
 import static org.apache.hadoop.ozone.OzoneConsts.ADMIN;
 import static org.apache.hadoop.ozone.OzoneConsts.OZONE_OFS_URI_SCHEME;
 import static org.apache.hadoop.ozone.om.OmSnapshotManager.getSnapshotPath;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.params.provider.Arguments.arguments;
 
 /**
@@ -153,8 +155,7 @@ public class TestOzoneManagerSnapshotAcl {
     final OmKeyArgs snapshotKeyArgs = getOmKeyArgs(true);
 
     // WHEN-THEN
-    Assertions.assertDoesNotThrow(
-        () -> ozoneManager.lookupKey(snapshotKeyArgs));
+    assertDoesNotThrow(() -> ozoneManager.lookupKey(snapshotKeyArgs));
   }
 
   @ParameterizedTest
@@ -168,14 +169,14 @@ public class TestOzoneManagerSnapshotAcl {
 
     // when reading from snapshot, read disallowed.
     UserGroupInformation.setLoginUser(UGI2);
-    final OMException ex = Assertions.assertThrows(OMException.class,
+    final OMException ex = assertThrows(OMException.class,
         () -> ozoneManager.lookupKey(snapshotKeyArgs));
 
     // THEN
-    Assertions.assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
+    assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
         ex.getResult());
     // when same user reads same key from active fs, read allowed.
-    Assertions.assertDoesNotThrow(() -> ozoneManager.lookupKey(keyArgs));
+    assertDoesNotThrow(() -> ozoneManager.lookupKey(keyArgs));
   }
 
   @ParameterizedTest
@@ -188,7 +189,7 @@ public class TestOzoneManagerSnapshotAcl {
     final boolean assumeS3Context = false;
 
     // WHEN-THEN
-    Assertions.assertDoesNotThrow(
+    assertDoesNotThrow(
         () -> ozoneManager.getKeyInfo(snapshotKeyArgs, assumeS3Context));
   }
 
@@ -205,15 +206,15 @@ public class TestOzoneManagerSnapshotAcl {
     // when reading from snapshot, read disallowed.
     UserGroupInformation.setLoginUser(UGI2);
     final OMException ex =
-        Assertions.assertThrows(OMException.class,
+        assertThrows(OMException.class,
             () -> ozoneManager.getKeyInfo(snapshotKeyOmKeyArgs,
                 assumeS3Context));
 
     // THEN
-    Assertions.assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
+    assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
         ex.getResult());
     // when same user reads same key from active fs, read allowed.
-    Assertions.assertDoesNotThrow(
+    assertDoesNotThrow(
         () -> ozoneManager.getKeyInfo(omKeyArgs, assumeS3Context));
   }
 
@@ -228,7 +229,7 @@ public class TestOzoneManagerSnapshotAcl {
     final long numEntries = Long.parseLong(RandomStringUtils.randomNumeric(1));
 
     // WHEN-THEN
-    Assertions.assertDoesNotThrow(
+    assertDoesNotThrow(
         () -> ozoneManager.listStatus(snapshotKeyArgs, recursive,
             snapshotKeyArgs.getKeyName(), numEntries,
             allowPartialPrefixes));
@@ -248,16 +249,16 @@ public class TestOzoneManagerSnapshotAcl {
     // when reading from snapshot, read disallowed.
     UserGroupInformation.setLoginUser(UGI2);
     final OMException ex =
-        Assertions.assertThrows(OMException.class,
+        assertThrows(OMException.class,
             () -> ozoneManager.listStatus(snapshotKeyArgs, recursive,
                 snapshotKeyArgs.getKeyName(), numEntries,
                 allowPartialPrefixes));
 
     // THEN
-    Assertions.assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
+    assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
         ex.getResult());
     // when same user reads same key from active fs, read allowed.
-    Assertions.assertDoesNotThrow(() -> ozoneManager.listStatus(keyArgs,
+    assertDoesNotThrow(() -> ozoneManager.listStatus(keyArgs,
         recursive, keyName, numEntries, allowPartialPrefixes));
   }
 
@@ -270,7 +271,7 @@ public class TestOzoneManagerSnapshotAcl {
     final OmKeyArgs snapshotKeyArgs = getOmKeyArgs(true);
 
     // WHEN-THEN
-    Assertions.assertDoesNotThrow(
+    assertDoesNotThrow(
         () -> ozoneManager.lookupFile(snapshotKeyArgs));
   }
 
@@ -285,14 +286,14 @@ public class TestOzoneManagerSnapshotAcl {
 
     // when reading from snapshot, read disallowed.
     UserGroupInformation.setLoginUser(UGI2);
-    final OMException ex = Assertions.assertThrows(OMException.class,
+    final OMException ex = assertThrows(OMException.class,
         () -> ozoneManager.lookupFile(snapshotKeyArgs));
 
     // THEN
-    Assertions.assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
+    assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
         ex.getResult());
     // when same user reads same key from active fs, read allowed.
-    Assertions.assertDoesNotThrow(() -> ozoneManager.lookupFile(keyArgs));
+    assertDoesNotThrow(() -> ozoneManager.lookupFile(keyArgs));
   }
 
   @ParameterizedTest
@@ -305,7 +306,7 @@ public class TestOzoneManagerSnapshotAcl {
     final int maxKeys = Integer.parseInt(RandomStringUtils.randomNumeric(1));
 
     // WHEN-THEN
-    Assertions.assertDoesNotThrow(() -> ozoneManager.listKeys(volumeName,
+    assertDoesNotThrow(() -> ozoneManager.listKeys(volumeName,
         bucketName, snapshotKeyArgs.getKeyName(), snapshotKeyPrefix, maxKeys));
   }
 
@@ -322,10 +323,10 @@ public class TestOzoneManagerSnapshotAcl {
     UserGroupInformation.setLoginUser(UGI2);
 
     // THEN
-    Assertions.assertDoesNotThrow(
+    assertDoesNotThrow(
         () -> ozoneManager.listKeys(volumeName, bucketName,
             snapshotKeyArgs.getKeyName(), snapshotKeyPrefix, maxKeys));
-    Assertions.assertDoesNotThrow(() -> ozoneManager.listKeys(volumeName,
+    assertDoesNotThrow(() -> ozoneManager.listKeys(volumeName,
         bucketName, keyName, KEY_PREFIX, maxKeys));
   }
 
@@ -345,7 +346,7 @@ public class TestOzoneManagerSnapshotAcl {
         .build();
 
     // WHEN-THEN
-    Assertions.assertDoesNotThrow(() -> ozoneManager.getAcl(ozoneObj));
+    assertDoesNotThrow(() -> ozoneManager.getAcl(ozoneObj));
   }
 
   @ParameterizedTest
@@ -371,14 +372,14 @@ public class TestOzoneManagerSnapshotAcl {
 
     // when reading from snapshot, read disallowed.
     UserGroupInformation.setLoginUser(UGI2);
-    final OMException ex = Assertions.assertThrows(OMException.class,
+    final OMException ex = assertThrows(OMException.class,
         () -> ozoneManager.getAcl(snapshotObj));
 
     // THEN
-    Assertions.assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
+    assertEquals(OMException.ResultCodes.PERMISSION_DENIED,
         ex.getResult());
     // when same user reads same key from active fs, read allowed.
-    Assertions.assertDoesNotThrow(() -> ozoneManager.getAcl(keyObj));
+    assertDoesNotThrow(() -> ozoneManager.getAcl(keyObj));
   }
 
   private void setup(BucketLayout bucketLayout)
diff --git 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOzoneSnapshotRestore.java
 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOzoneSnapshotRestore.java
index 944f2636d2..21fdd853b9 100644
--- 
a/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOzoneSnapshotRestore.java
+++ 
b/hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/snapshot/TestOzoneSnapshotRestore.java
@@ -43,7 +43,6 @@ import org.apache.hadoop.ozone.om.helpers.SnapshotInfo;
 import org.apache.hadoop.util.ToolRunner;
 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.TestInstance;
 import org.junit.jupiter.api.Timeout;
@@ -64,6 +63,7 @@ import static 
org.apache.hadoop.fs.FileSystem.FS_DEFAULT_NAME_KEY;
 import static org.apache.hadoop.ozone.OzoneConsts.OM_KEY_PREFIX;
 import static org.apache.hadoop.ozone.OzoneConsts.OZONE_OFS_URI_SCHEME;
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.params.provider.Arguments.arguments;
 
 /**
@@ -196,7 +196,7 @@ public class TestOzoneSnapshotRestore {
       // Copy key from source to destination path
       int res = ToolRunner.run(shell,
               new String[]{"-cp", sourcePath, destPath});
-      Assertions.assertEquals(0, res);
+      assertEquals(0, res);
     } finally {
       shell.close();
     }


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