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The following commit(s) were added to refs/heads/master by this push:
     new 7e70ed855bc HDDS-13562. Convert redundant fields to local var in 
ozone-manager module (#8991)
7e70ed855bc is described below

commit 7e70ed855bcee4235e7a8d91e143bac4cd0ade4b
Author: Ivan Zlenko <[email protected]>
AuthorDate: Mon Sep 8 11:07:29 2025 +0400

    HDDS-13562. Convert redundant fields to local var in ozone-manager module 
(#8991)
---
 .../java/org/apache/hadoop/ozone/om/OmTestManagers.java   |  3 +--
 .../hadoop/ozone/om/TestGrpcOzoneManagerServer.java       |  9 +++------
 .../org/apache/hadoop/ozone/om/TestKeyManagerUnit.java    |  3 +--
 .../apache/hadoop/ozone/om/TestOMTenantCreateRequest.java |  3 +--
 .../java/org/apache/hadoop/ozone/om/TestScmClient.java    |  6 ++----
 .../apache/hadoop/ozone/om/TestServiceInfoProvider.java   |  3 +--
 .../org/apache/hadoop/ozone/om/ha/TestOMHAMetrics.java    |  9 +++------
 .../hadoop/ozone/om/lock/TestOzoneLockProvider.java       |  4 +---
 .../ratis/TestOzoneManagerDoubleBufferWithOMResponse.java |  6 ++----
 .../ozone/om/ratis/TestOzoneManagerRatisRequest.java      |  5 ++---
 .../ozone/om/ratis/TestOzoneManagerRatisServer.java       |  3 +--
 .../ozone/om/request/TestOMClientRequestWithUserInfo.java |  6 ++----
 .../request/file/TestOMDirectoryCreateRequestWithFSO.java |  3 +--
 .../om/request/s3/security/TestS3GetSecretRequest.java    |  6 ++----
 .../hadoop/ozone/om/service/TestCompactionService.java    |  3 +--
 .../ozone/om/service/TestDirectoryDeletingService.java    |  3 +--
 .../hadoop/ozone/security/TestAWSV4AuthValidator.java     | 13 ++-----------
 .../ozone/security/TestOmCertificateClientInit.java       |  6 ++----
 .../apache/hadoop/ozone/security/acl/TestOzoneObj.java    |  6 ++----
 .../apache/hadoop/ozone/security/acl/TestParentAcl.java   | 15 +++++----------
 .../apache/hadoop/ozone/security/acl/TestVolumeOwner.java | 15 +++++----------
 21 files changed, 41 insertions(+), 89 deletions(-)

diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/OmTestManagers.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/OmTestManagers.java
index 0e0088430ce..8b74dcd8a3d 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/OmTestManagers.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/OmTestManagers.java
@@ -47,7 +47,6 @@ public final class OmTestManagers {
   private final OzoneManager om;
   private final KeyManager keyManager;
   private final OMMetadataManager metadataManager;
-  private KeyProviderCryptoExtension kmsProvider;
   private final VolumeManager volumeManager;
   private final BucketManager bucketManager;
   private final PrefixManager prefixManager;
@@ -148,7 +147,7 @@ public OmTestManagers(OzoneConfiguration conf,
 
   //initializing and returning a mock kmsProvider
   public KeyProviderCryptoExtension kmsProviderInit() {
-    kmsProvider = mock(KeyProviderCryptoExtension.class);
+    KeyProviderCryptoExtension kmsProvider = 
mock(KeyProviderCryptoExtension.class);
 
     HddsWhiteboxTestUtils.setInternalState(om,
             "kmsProvider", kmsProvider);
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestGrpcOzoneManagerServer.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestGrpcOzoneManagerServer.java
index 2401e62bcd1..106efd73d68 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestGrpcOzoneManagerServer.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestGrpcOzoneManagerServer.java
@@ -27,17 +27,14 @@
  * Tests for GrpcOzoneManagerServer.
  */
 public class TestGrpcOzoneManagerServer {
-  private OzoneManager ozoneManager;
-  private OzoneManagerProtocolServerSideTranslatorPB omServerProtocol;
-  private GrpcOzoneManagerServer server;
 
   @Test
   public void testStartStop() throws Exception {
     OzoneConfiguration conf = new OzoneConfiguration();
-    ozoneManager = mock(OzoneManager.class);
-    omServerProtocol = ozoneManager.getOmServerProtocol();
+    OzoneManager ozoneManager = mock(OzoneManager.class);
+    OzoneManagerProtocolServerSideTranslatorPB omServerProtocol = 
ozoneManager.getOmServerProtocol();
 
-    server = new GrpcOzoneManagerServer(conf,
+    GrpcOzoneManagerServer server = new GrpcOzoneManagerServer(conf,
         omServerProtocol,
         ozoneManager.getDelegationTokenMgr(),
         ozoneManager.getCertificateClient(),
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerUnit.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerUnit.java
index 60200cf1c71..8c0c936985f 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerUnit.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestKeyManagerUnit.java
@@ -100,7 +100,6 @@ class TestKeyManagerUnit extends OzoneTestBase {
 
   private static final AtomicLong CONTAINER_ID = new AtomicLong();
 
-  private OzoneConfiguration configuration;
   private OMMetadataManager metadataManager;
   private StorageContainerLocationProtocol containerClient;
   private KeyManagerImpl keyManager;
@@ -114,7 +113,7 @@ class TestKeyManagerUnit extends OzoneTestBase {
   @BeforeAll
   void setup(@TempDir Path testDir) throws Exception {
     ExitUtils.disableSystemExit();
-    configuration = new OzoneConfiguration();
+    OzoneConfiguration configuration = new OzoneConfiguration();
     configuration.set(HddsConfigKeys.OZONE_METADATA_DIRS, testDir.toString());
     containerClient = mock(StorageContainerLocationProtocol.class);
     blockClient = mock(ScmBlockLocationProtocol.class);
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestOMTenantCreateRequest.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestOMTenantCreateRequest.java
index 6c05ef8f36f..a37879e9c76 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestOMTenantCreateRequest.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestOMTenantCreateRequest.java
@@ -60,7 +60,6 @@ public class TestOMTenantCreateRequest {
   private OzoneManager ozoneManager;
   private OMMetrics omMetrics;
   private OMMetadataManager omMetadataManager;
-  private AuditLogger auditLogger;
 
   @BeforeEach
   public void setup() throws Exception {
@@ -78,7 +77,7 @@ public void setup() throws Exception {
     when(lvm.getMetadataLayoutVersion()).thenReturn(0);
     when(lvm.isAllowed(anyString())).thenReturn(true);
     when(ozoneManager.getVersionManager()).thenReturn(lvm);
-    auditLogger = mock(AuditLogger.class);
+    AuditLogger auditLogger = mock(AuditLogger.class);
     when(ozoneManager.getAuditLogger()).thenReturn(auditLogger);
     doNothing().when(auditLogger).logWrite(any(AuditMessage.class));
 
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestScmClient.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestScmClient.java
index 750fb9bf601..d055ac246c1 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestScmClient.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestScmClient.java
@@ -57,16 +57,14 @@
  * ScmClient test-cases.
  */
 public class TestScmClient {
-  private ScmBlockLocationProtocol scmBlockLocationProtocol;
   private StorageContainerLocationProtocol containerLocationProtocol;
-  private OzoneConfiguration conf;
   private ScmClient scmClient;
 
   @BeforeEach
   public void setUp() {
-    scmBlockLocationProtocol = mock(ScmBlockLocationProtocol.class);
+    ScmBlockLocationProtocol scmBlockLocationProtocol = 
mock(ScmBlockLocationProtocol.class);
     containerLocationProtocol = mock(StorageContainerLocationProtocol.class);
-    conf = new OzoneConfiguration();
+    OzoneConfiguration conf = new OzoneConfiguration();
     scmClient = new ScmClient(scmBlockLocationProtocol,
         containerLocationProtocol, conf);
   }
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestServiceInfoProvider.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestServiceInfoProvider.java
index a686f18d4e7..f437e441f67 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestServiceInfoProvider.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/TestServiceInfoProvider.java
@@ -92,7 +92,6 @@ public void test() throws Exception {
   public class TestSecureEnvironment {
 
     private CertificateClient certClient;
-    private X509Certificate cert1;
     private String pem1;
     private X509Certificate cert2;
     private String pem2;
@@ -102,7 +101,7 @@ public class TestSecureEnvironment {
     public void setup() throws Exception {
       conf.setBoolean(OZONE_SECURITY_ENABLED_KEY, true);
       certClient = mock(CertificateClient.class);
-      cert1 = createSelfSignedCert(aKeyPair(conf), "1st", Duration.ofDays(1));
+      X509Certificate cert1 = createSelfSignedCert(aKeyPair(conf), "1st", 
Duration.ofDays(1));
       pem1 = getPEMEncodedString(cert1);
       cert2 = createSelfSignedCert(aKeyPair(conf), "2nd", Duration.ofDays(2));
       pem2 = getPEMEncodedString(cert2);
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ha/TestOMHAMetrics.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ha/TestOMHAMetrics.java
index ee17a916bd0..f00ff60c8ea 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ha/TestOMHAMetrics.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ha/TestOMHAMetrics.java
@@ -33,8 +33,6 @@ public class TestOMHAMetrics {
       new MetricsCollectorImpl();
   private static final String NODE_ID =
       "om" + RandomStringUtils.secure().nextNumeric(5);
-  private OMHAMetrics omhaMetrics;
-  private String leaderId;
 
   @AfterEach
   public void cleanUp() {
@@ -43,8 +41,7 @@ public void cleanUp() {
 
   @Test
   public void testGetMetricsWithLeader() {
-    leaderId = NODE_ID;
-    omhaMetrics = OMHAMetrics.create(NODE_ID, leaderId);
+    OMHAMetrics omhaMetrics = OMHAMetrics.create(NODE_ID, NODE_ID);
 
     omhaMetrics.getMetrics(METRICS_COLLECTOR, true);
     assertEquals(1, omhaMetrics.getOmhaInfoOzoneManagerHALeaderState());
@@ -52,8 +49,8 @@ public void testGetMetricsWithLeader() {
 
   @Test
   public void testGetMetricsWithFollower() {
-    leaderId = "om" + RandomStringUtils.secure().nextNumeric(5);
-    omhaMetrics = OMHAMetrics.create(NODE_ID, leaderId);
+    String leaderId = "om" + RandomStringUtils.secure().nextNumeric(5);
+    OMHAMetrics omhaMetrics = OMHAMetrics.create(NODE_ID, leaderId);
 
     omhaMetrics.getMetrics(METRICS_COLLECTOR, true);
     assertEquals(0, omhaMetrics.getOmhaInfoOzoneManagerHALeaderState());
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/lock/TestOzoneLockProvider.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/lock/TestOzoneLockProvider.java
index 84c75e87bc5..f42dfad3df5 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/lock/TestOzoneLockProvider.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/lock/TestOzoneLockProvider.java
@@ -40,7 +40,6 @@ public class TestOzoneLockProvider {
       LoggerFactory.getLogger(TestOzoneLockProvider.class);
 
   private OzoneManager ozoneManager;
-  private OzoneLockStrategy ozoneLockStrategy;
 
   private boolean keyPathLockEnabled;
   private boolean enableFileSystemPaths;
@@ -77,8 +76,7 @@ public void testOzoneLockProviderUtil(BucketLayout 
bucketLayout) {
 
     when(ozoneManager.getOzoneLockProvider()).thenReturn(
         new OzoneLockProvider(keyPathLockEnabled, enableFileSystemPaths));
-    ozoneLockStrategy =
-        ozoneManager.getOzoneLockProvider().createLockStrategy(bucketLayout);
+    OzoneLockStrategy ozoneLockStrategy = 
ozoneManager.getOzoneLockProvider().createLockStrategy(bucketLayout);
 
     if (keyPathLockEnabled) {
       if (bucketLayout == BucketLayout.OBJECT_STORE) {
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerDoubleBufferWithOMResponse.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerDoubleBufferWithOMResponse.java
index 3f1d1df52f3..4ba3c6b5d1b 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerDoubleBufferWithOMResponse.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerDoubleBufferWithOMResponse.java
@@ -80,8 +80,6 @@ public class TestOzoneManagerDoubleBufferWithOMResponse {
   private static final int MAX_VOLUMES = 1000;
 
   private OzoneManager ozoneManager;
-  private OMMetrics omMetrics;
-  private AuditLogger auditLogger;
   private OMMetadataManager omMetadataManager;
   private OzoneManagerDoubleBuffer doubleBuffer;
   private final AtomicLong trxId = new AtomicLong(0);
@@ -93,7 +91,7 @@ public class TestOzoneManagerDoubleBufferWithOMResponse {
   @BeforeEach
   public void setup() throws IOException {
     ozoneManager = mock(OzoneManager.class, withSettings().stubOnly());
-    omMetrics = OMMetrics.create();
+    OMMetrics omMetrics = OMMetrics.create();
     OzoneConfiguration ozoneConfiguration = new OzoneConfiguration();
     ozoneConfiguration.set(OMConfigKeys.OZONE_OM_DB_DIRS,
         folder.toAbsolutePath().toString());
@@ -102,7 +100,7 @@ public void setup() throws IOException {
     when(ozoneManager.getMetrics()).thenReturn(omMetrics);
     when(ozoneManager.getMetadataManager()).thenReturn(omMetadataManager);
     when(ozoneManager.getMaxUserVolumeCount()).thenReturn(10L);
-    auditLogger = mock(AuditLogger.class);
+    AuditLogger auditLogger = mock(AuditLogger.class);
     when(ozoneManager.getAuditLogger()).thenReturn(auditLogger);
     when(ozoneManager.getConfiguration()).thenReturn(ozoneConfiguration);
     
when(ozoneManager.getConfig()).thenReturn(ozoneConfiguration.getObject(OmConfig.class));
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
index 50ffa6c3538..fdc9e0f008d 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisRequest.java
@@ -57,14 +57,13 @@ public class TestOzoneManagerRatisRequest {
   private OzoneManager ozoneManager;
   private final OzoneConfiguration ozoneConfiguration =
       new OzoneConfiguration();
-  private OMMetadataManager omMetadataManager;
 
   @Test
   public void testRequestWithNonExistentBucket() throws Exception {
     ozoneManager = mock(OzoneManager.class);
     ozoneConfiguration.set(OMConfigKeys.OZONE_OM_DB_DIRS,
         folder.resolve("om").toAbsolutePath().toString());
-    omMetadataManager = new OmMetadataManagerImpl(ozoneConfiguration,
+    OMMetadataManager omMetadataManager = new 
OmMetadataManagerImpl(ozoneConfiguration,
         ozoneManager);
     when(ozoneManager.getMetadataManager()).thenReturn(omMetadataManager);
 
@@ -105,7 +104,7 @@ public void testUnknownRequestHandling()
     ozoneManager = mock(OzoneManager.class);
     ozoneConfiguration.set(OMConfigKeys.OZONE_OM_DB_DIRS,
         folder.resolve("om").toAbsolutePath().toString());
-    omMetadataManager = new OmMetadataManagerImpl(ozoneConfiguration,
+    OMMetadataManager omMetadataManager = new 
OmMetadataManagerImpl(ozoneConfiguration,
         ozoneManager);
     when(ozoneManager.getMetadataManager()).thenReturn(omMetadataManager);
     OMExecutionFlow omExecutionFlow = new OMExecutionFlow(ozoneManager);
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisServer.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisServer.java
index f832c61d9e8..f5e1b2dce81 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisServer.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/ratis/TestOzoneManagerRatisServer.java
@@ -69,7 +69,6 @@ public class TestOzoneManagerRatisServer {
 
   private OzoneConfiguration conf;
   private OzoneManagerRatisServer omRatisServer;
-  private String omID;
   private String clientId = UUID.randomUUID().toString();
   private static final long RATIS_RPC_TIMEOUT = 500L;
   private OMMetadataManager omMetadataManager;
@@ -86,7 +85,7 @@ public static void setup() {
   @BeforeEach
   public void init(@TempDir Path metaDirPath) throws Exception {
     conf = new OzoneConfiguration();
-    omID = UUID.randomUUID().toString();
+    String omID = UUID.randomUUID().toString();
     conf.set(HddsConfigKeys.OZONE_METADATA_DIRS, metaDirPath.toString());
     conf.setTimeDuration(OMConfigKeys.OZONE_OM_RATIS_MINIMUM_TIMEOUT_KEY,
         RATIS_RPC_TIMEOUT, TimeUnit.MILLISECONDS);
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/TestOMClientRequestWithUserInfo.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/TestOMClientRequestWithUserInfo.java
index 138f6f28122..f2542251ab7 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/TestOMClientRequestWithUserInfo.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/TestOMClientRequestWithUserInfo.java
@@ -61,8 +61,6 @@ public class TestOMClientRequestWithUserInfo {
   private Path folder;
 
   private OzoneManager ozoneManager;
-  private OMMetrics omMetrics;
-  private OMMetadataManager omMetadataManager;
   private UserGroupInformation userGroupInformation =
       UserGroupInformation.createRemoteUser("temp");
   private InetAddress inetAddress;
@@ -70,11 +68,11 @@ public class TestOMClientRequestWithUserInfo {
   @BeforeEach
   public void setup() throws Exception {
     ozoneManager = mock(OzoneManager.class);
-    omMetrics = OMMetrics.create();
+    OMMetrics omMetrics = OMMetrics.create();
     OzoneConfiguration ozoneConfiguration = new OzoneConfiguration();
     ozoneConfiguration.set(OMConfigKeys.OZONE_OM_DB_DIRS,
         folder.toAbsolutePath().toString());
-    omMetadataManager = new OmMetadataManagerImpl(ozoneConfiguration,
+    OMMetadataManager omMetadataManager = new 
OmMetadataManagerImpl(ozoneConfiguration,
         ozoneManager);
     when(ozoneManager.getMetrics()).thenReturn(omMetrics);
     when(ozoneManager.getMetadataManager()).thenReturn(omMetadataManager);
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/file/TestOMDirectoryCreateRequestWithFSO.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/file/TestOMDirectoryCreateRequestWithFSO.java
index 2f8fdffc5f5..0c87607c3bc 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/file/TestOMDirectoryCreateRequestWithFSO.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/file/TestOMDirectoryCreateRequestWithFSO.java
@@ -85,7 +85,6 @@ public class TestOMDirectoryCreateRequestWithFSO {
   private OzoneManager ozoneManager;
   private OMMetrics omMetrics;
   private OMMetadataManager omMetadataManager;
-  private AuditLogger auditLogger;
 
   @BeforeEach
   public void setup() throws Exception {
@@ -101,7 +100,7 @@ public void setup() throws Exception {
     
when(ozoneManager.getConfig()).thenReturn(ozoneConfiguration.getObject(OmConfig.class));
     when(ozoneManager.getMetrics()).thenReturn(omMetrics);
     when(ozoneManager.getMetadataManager()).thenReturn(omMetadataManager);
-    auditLogger = mock(AuditLogger.class);
+    AuditLogger auditLogger = mock(AuditLogger.class);
     when(ozoneManager.getAuditLogger()).thenReturn(auditLogger);
     doNothing().when(auditLogger).logWrite(any(AuditMessage.class));
     when(ozoneManager.resolveBucketLink(any(KeyArgs.class),
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/s3/security/TestS3GetSecretRequest.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/s3/security/TestS3GetSecretRequest.java
index b41bc687807..b5080d24eb1 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/s3/security/TestS3GetSecretRequest.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/request/s3/security/TestS3GetSecretRequest.java
@@ -97,7 +97,6 @@ public class TestS3GetSecretRequest {
 
   private OzoneManager ozoneManager;
   private OMMetrics omMetrics;
-  private AuditLogger auditLogger;
   private OmMetadataManagerImpl omMetadataManager;
 
   // Multi-tenant related vars
@@ -112,7 +111,6 @@ public class TestS3GetSecretRequest {
   private UserGroupInformation ugiCarol;
 
   private OMMultiTenantManager omMultiTenantManager;
-  private Tenant tenant;
 
   @BeforeEach
   public void setUp() throws Exception {
@@ -154,13 +152,13 @@ public void setUp() throws Exception {
     );
     when(ozoneManager.getS3SecretManager()).thenReturn(secretManager);
 
-    auditLogger = mock(AuditLogger.class);
+    AuditLogger auditLogger = mock(AuditLogger.class);
     when(ozoneManager.getAuditLogger()).thenReturn(auditLogger);
     doNothing().when(auditLogger).logWrite(any(AuditMessage.class));
 
     // Multi-tenant related initializations
     omMultiTenantManager = mock(OMMultiTenantManager.class);
-    tenant = mock(Tenant.class);
+    Tenant tenant = mock(Tenant.class);
     
when(ozoneManager.getMultiTenantManager()).thenReturn(omMultiTenantManager);
 
     when(tenant.getTenantAccessPolicies()).thenReturn(new ArrayList<>());
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/service/TestCompactionService.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/service/TestCompactionService.java
index bd10bd59e55..d2542315670 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/service/TestCompactionService.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/service/TestCompactionService.java
@@ -58,7 +58,6 @@ class TestCompactionService {
   private static final int SERVICE_INTERVAL = 1;
   private static final int WAIT_TIME = (int) Duration.ofSeconds(10).toMillis();
   private OzoneManager ozoneManager;
-  private OMMetadataManager metadataManager;
 
   @BeforeAll
   void setup(@TempDir Path tempDir) {
@@ -73,7 +72,7 @@ void setup(@TempDir Path tempDir) {
     conf.setQuietMode(false);
 
     ozoneManager = mock(OzoneManager.class);
-    metadataManager = mock(OMMetadataManager.class);
+    OMMetadataManager metadataManager = mock(OMMetadataManager.class);
     when(ozoneManager.getMetadataManager()).thenReturn(metadataManager);
     TypedTable table = mock(TypedTable.class);
 
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/service/TestDirectoryDeletingService.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/service/TestDirectoryDeletingService.java
index 1a55b63bb27..9fabe5a4650 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/service/TestDirectoryDeletingService.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/om/service/TestDirectoryDeletingService.java
@@ -72,7 +72,6 @@ public class TestDirectoryDeletingService {
 
   @TempDir
   private Path folder;
-  private OzoneManagerProtocol writeClient;
   private OzoneManager om;
   private String volumeName;
   private String bucketName;
@@ -115,7 +114,7 @@ public void testDeleteDirectoryCrossingSizeLimit() throws 
Exception {
     OmTestManagers omTestManagers
         = new OmTestManagers(conf);
     KeyManager keyManager = omTestManagers.getKeyManager();
-    writeClient = omTestManagers.getWriteClient();
+    OzoneManagerProtocol writeClient = omTestManagers.getWriteClient();
     om = omTestManagers.getOzoneManager();
 
     OMRequestTestUtils.addVolumeAndBucketToDB(volumeName, bucketName,
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/TestAWSV4AuthValidator.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/TestAWSV4AuthValidator.java
index c036ac3c7ee..5564947c1bb 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/TestAWSV4AuthValidator.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/TestAWSV4AuthValidator.java
@@ -29,11 +29,6 @@
  */
 public class TestAWSV4AuthValidator {
 
-  private String strToSign;
-  private String signature;
-  private String awsAccessKey;
-  private Boolean result;
-
   public static Collection<Object[]> data() {
     return Arrays.asList(new Object[][]{
         {
@@ -77,11 +72,7 @@ public static Collection<Object[]> data() {
   @MethodSource("data")
   public void testValidateRequest(String stringToSign, String sign,
                                   String accessKey, Boolean testResult) {
-    this.strToSign = stringToSign;
-    this.signature = sign;
-    this.awsAccessKey = accessKey;
-    this.result = testResult;
-    assertEquals(result, AWSV4AuthValidator.validateRequest(
-            strToSign, signature, awsAccessKey));
+    assertEquals(testResult, AWSV4AuthValidator.validateRequest(
+        stringToSign, sign, accessKey));
   }
 }
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/TestOmCertificateClientInit.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/TestOmCertificateClientInit.java
index 73f8656ea0a..d5fdd032a38 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/TestOmCertificateClientInit.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/TestOmCertificateClientInit.java
@@ -60,9 +60,7 @@
 public class TestOmCertificateClientInit {
 
   private KeyPair keyPair;
-  private String certSerialId = "3284792342234";
   private OMCertificateClient omCertificateClient;
-  private HDDSKeyGenerator keyGenerator;
   private SecurityConfig securityConfig;
   private KeyStorage omKeyStorage;
   private X509Certificate x509Certificate;
@@ -86,10 +84,10 @@ public void setUp(@TempDir Path metaDirPath) throws 
Exception {
     OzoneConfiguration config = new OzoneConfiguration();
     config.set(HDDS_METADATA_DIR_NAME, metaDirPath.toString());
     securityConfig = new SecurityConfig(config);
-    keyGenerator = new HDDSKeyGenerator(securityConfig);
+    HDDSKeyGenerator keyGenerator = new HDDSKeyGenerator(securityConfig);
     keyPair = keyGenerator.generateKey();
     x509Certificate = getX509Certificate();
-    certSerialId = x509Certificate.getSerialNumber().toString();
+    String certSerialId = x509Certificate.getSerialNumber().toString();
     OMStorage storage = mock(OMStorage.class);
     when(storage.getOmCertSerialId()).thenReturn(certSerialId);
     when(storage.getClusterID()).thenReturn("test");
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestOzoneObj.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestOzoneObj.java
index b750b1a85ca..e65d8eb17c8 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestOzoneObj.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestOzoneObj.java
@@ -32,8 +32,6 @@
  */
 public class TestOzoneObj {
 
-  private OzoneObjInfo objInfo;
-  private OzoneObjInfo.Builder builder;
   private String volume = "vol1";
   private String bucket = "bucket1";
   private String key = "key1";
@@ -42,8 +40,8 @@ public class TestOzoneObj {
   @Test
   public void testGetPathViewer() throws IOException {
 
-    builder = getBuilder(volume, bucket, key);
-    objInfo = builder.build();
+    OzoneObjInfo.Builder builder = getBuilder(volume, bucket, key);
+    OzoneObjInfo objInfo = builder.build();
     assertEquals(objInfo.getVolumeName(), volume);
     assertNotNull(objInfo.getOzonePrefixPathViewer(),
         "unexpected path accessor");
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestParentAcl.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestParentAcl.java
index 92bcc7b7a2b..ed47b957826 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestParentAcl.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestParentAcl.java
@@ -74,11 +74,6 @@
  * Test parent acl requirements when accessing children with native authorizer.
  */
 public class TestParentAcl {
-  private static OzoneConfiguration ozConfig;
-  private static KeyManager keyManager;
-  private static VolumeManager volumeManager;
-  private static BucketManager bucketManager;
-  private static PrefixManager prefixManager;
   private static OMMetadataManager metadataManager;
   private static OzoneNativeAuthorizer nativeAuthorizer;
   private static UserGroupInformation adminUgi;
@@ -89,7 +84,7 @@ public class TestParentAcl {
 
   @BeforeAll
   static void setup() throws Exception {
-    ozConfig = new OzoneConfiguration();
+    OzoneConfiguration ozConfig = new OzoneConfiguration();
     ozConfig.set(OZONE_ACL_AUTHORIZER_CLASS,
         OZONE_ACL_AUTHORIZER_CLASS_NATIVE);
     ozConfig.set(OZONE_METADATA_DIRS, testDir.toString());
@@ -98,10 +93,10 @@ static void setup() throws Exception {
     OmTestManagers omTestManagers =
         new OmTestManagers(ozConfig);
     metadataManager = omTestManagers.getMetadataManager();
-    volumeManager = omTestManagers.getVolumeManager();
-    bucketManager = omTestManagers.getBucketManager();
-    prefixManager = omTestManagers.getPrefixManager();
-    keyManager = omTestManagers.getKeyManager();
+    VolumeManager volumeManager = omTestManagers.getVolumeManager();
+    BucketManager bucketManager = omTestManagers.getBucketManager();
+    PrefixManager prefixManager = omTestManagers.getPrefixManager();
+    KeyManager keyManager = omTestManagers.getKeyManager();
     writeClient = omTestManagers.getWriteClient();
     nativeAuthorizer = new OzoneNativeAuthorizer(volumeManager, bucketManager,
         keyManager, prefixManager,
diff --git 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestVolumeOwner.java
 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestVolumeOwner.java
index acddf20d27b..43c0d0a39ac 100644
--- 
a/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestVolumeOwner.java
+++ 
b/hadoop-ozone/ozone-manager/src/test/java/org/apache/hadoop/ozone/security/acl/TestVolumeOwner.java
@@ -59,12 +59,7 @@
  */
 public class TestVolumeOwner {
 
-  private static OzoneConfiguration ozoneConfig;
   private static OzoneNativeAuthorizer nativeAuthorizer;
-  private static KeyManager keyManager;
-  private static VolumeManager volumeManager;
-  private static BucketManager bucketManager;
-  private static PrefixManager prefixManager;
   private static OMMetadataManager metadataManager;
   private static UserGroupInformation testUgi;
   private static OzoneManagerProtocol writeClient;
@@ -73,7 +68,7 @@ public class TestVolumeOwner {
 
   @BeforeAll
   static void setup() throws Exception {
-    ozoneConfig = new OzoneConfiguration();
+    OzoneConfiguration ozoneConfig = new OzoneConfiguration();
     ozoneConfig.set(OZONE_ACL_AUTHORIZER_CLASS,
         OZONE_ACL_AUTHORIZER_CLASS_NATIVE);
     ozoneConfig.set(OZONE_METADATA_DIRS, testDir.toString());
@@ -81,10 +76,10 @@ static void setup() throws Exception {
     OmTestManagers omTestManagers =
         new OmTestManagers(ozoneConfig);
     metadataManager = omTestManagers.getMetadataManager();
-    volumeManager = omTestManagers.getVolumeManager();
-    bucketManager = omTestManagers.getBucketManager();
-    keyManager = omTestManagers.getKeyManager();
-    prefixManager = omTestManagers.getPrefixManager();
+    VolumeManager volumeManager = omTestManagers.getVolumeManager();
+    BucketManager bucketManager = omTestManagers.getBucketManager();
+    KeyManager keyManager = omTestManagers.getKeyManager();
+    PrefixManager prefixManager = omTestManagers.getPrefixManager();
     writeClient = omTestManagers.getWriteClient();
     nativeAuthorizer = new OzoneNativeAuthorizer(volumeManager, bucketManager,
         keyManager, prefixManager,


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