http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultStoreEngine.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultStoreEngine.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultStoreEngine.java
index a1a6022..98f9729 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultStoreEngine.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultStoreEngine.java
@@ -1,5 +1,4 @@
-/*
- *
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -16,23 +15,29 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.hadoop.hbase.regionserver;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.CellComparatorImpl;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.regionserver.compactions.DefaultCompactor;
 import 
org.apache.hadoop.hbase.regionserver.compactions.RatioBasedCompactionPolicy;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.junit.Assert;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 import org.mockito.Mockito;
 
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestDefaultStoreEngine {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestDefaultStoreEngine.class);
+
   public static class DummyStoreFlusher extends DefaultStoreFlusher {
     public DummyStoreFlusher(Configuration conf, HStore store) {
       super(conf, store);

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDeleteMobTable.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDeleteMobTable.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDeleteMobTable.java
index 9dd6885..859f069 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDeleteMobTable.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDeleteMobTable.java
@@ -19,9 +19,9 @@ package org.apache.hadoop.hbase.regionserver;
 
 import java.io.IOException;
 import java.util.Random;
-
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HTableDescriptor;
@@ -37,6 +37,7 @@ import org.apache.hadoop.hbase.util.HFileArchiveUtil;
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -45,6 +46,10 @@ import org.junit.rules.TestName;
 @Category(MediumTests.class)
 public class TestDeleteMobTable {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestDeleteMobTable.class);
+
   private final static HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();
   private final static byte[] FAMILY = Bytes.toBytes("family");
   private final static byte[] QF = Bytes.toBytes("qualifier");

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionKeyRotation.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionKeyRotation.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionKeyRotation.java
index ec714be..52d6aae 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionKeyRotation.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionKeyRotation.java
@@ -1,4 +1,4 @@
-/*
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -26,11 +26,10 @@ import java.security.SecureRandom;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
-
 import javax.crypto.spec.SecretKeySpec;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HConstants;
@@ -51,6 +50,7 @@ import 
org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -60,6 +60,11 @@ import org.slf4j.LoggerFactory;
 
 @Category({RegionServerTests.class, MediumTests.class})
 public class TestEncryptionKeyRotation {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestEncryptionKeyRotation.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestEncryptionKeyRotation.class);
   private static final HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();
   private static final Configuration conf = TEST_UTIL.getConfiguration();

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionRandomKeying.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionRandomKeying.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionRandomKeying.java
index 42ef533..eef0b90 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionRandomKeying.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEncryptionRandomKeying.java
@@ -1,4 +1,4 @@
-/*
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -23,9 +23,9 @@ import static org.junit.Assert.assertTrue;
 import java.security.Key;
 import java.util.ArrayList;
 import java.util.List;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HConstants;
@@ -42,11 +42,17 @@ import 
org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, MediumTests.class})
 public class TestEncryptionRandomKeying {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestEncryptionRandomKeying.class);
+
   private static final HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();
   private static Configuration conf = TEST_UTIL.getConfiguration();
   private static HTableDescriptor htd;

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java
index a770f8c..2c12341 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java
@@ -28,10 +28,10 @@ import java.util.Random;
 import java.util.Set;
 import java.util.TreeSet;
 import java.util.stream.Collectors;
-
 import org.apache.commons.io.IOUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.ChoreService;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.HRegionLocation;
@@ -57,16 +57,23 @@ import org.apache.hadoop.hbase.util.StoppableImplementation;
 import org.apache.hadoop.hbase.util.Threads;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 import org.junit.rules.TestName;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import org.apache.hbase.thirdparty.com.google.common.collect.Iterators;
 
 @Category(LargeTests.class)
 public class TestEndToEndSplitTransaction {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestEndToEndSplitTransaction.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestEndToEndSplitTransaction.class);
   private static final HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();
   private static final Configuration CONF = TEST_UTIL.getConfiguration();

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFSErrorsExposed.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFSErrorsExposed.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFSErrorsExposed.java
index bbf06fd..a7e959f 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFSErrorsExposed.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFSErrorsExposed.java
@@ -1,5 +1,4 @@
-/*
- *
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -28,12 +27,12 @@ import java.lang.ref.SoftReference;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-
 import org.apache.hadoop.fs.FSDataInputStream;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.FilterFileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.PositionedReadable;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HConstants;
@@ -52,6 +51,7 @@ import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.junit.Assume;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -65,6 +65,11 @@ import org.slf4j.LoggerFactory;
  */
 @Category({RegionServerTests.class, MediumTests.class})
 public class TestFSErrorsExposed {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestFSErrorsExposed.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestFSErrorsExposed.class);
 
   HBaseTestingUtility util = new HBaseTestingUtility();

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFailedAppendAndSync.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFailedAppendAndSync.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFailedAppendAndSync.java
index 84e424e..e27a986 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFailedAppendAndSync.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFailedAppendAndSync.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -18,7 +17,6 @@
  */
 package org.apache.hadoop.hbase.regionserver;
 
-
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 import static org.mockito.Mockito.mock;
@@ -26,11 +24,11 @@ import static org.mockito.Mockito.when;
 
 import java.io.IOException;
 import java.util.concurrent.atomic.AtomicLong;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hbase.DroppedSnapshotException;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.Server;
@@ -47,6 +45,7 @@ import org.apache.hadoop.hbase.wal.WAL;
 import org.apache.hadoop.hbase.wal.WALProvider.Writer;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -62,6 +61,11 @@ import org.slf4j.LoggerFactory;
  */
 @Category({MediumTests.class})
 public class TestFailedAppendAndSync {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestFailedAppendAndSync.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestFailedAppendAndSync.class);
   @Rule public TestName name = new TestName();
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushLifeCycleTracker.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushLifeCycleTracker.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushLifeCycleTracker.java
index 8550bdc..278afe0 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushLifeCycleTracker.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushLifeCycleTracker.java
@@ -27,10 +27,10 @@ import java.io.IOException;
 import java.io.InterruptedIOException;
 import java.util.Optional;
 import java.util.concurrent.CountDownLatch;
-
 import org.apache.hadoop.hbase.Cell.Type;
 import org.apache.hadoop.hbase.CellBuilderFactory;
 import org.apache.hadoop.hbase.CellBuilderType;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.TableName;
@@ -49,6 +49,7 @@ import org.junit.After;
 import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
@@ -58,6 +59,10 @@ import org.junit.experimental.categories.Category;
 @Category({ CoprocessorTests.class, MediumTests.class })
 public class TestFlushLifeCycleTracker {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestFlushLifeCycleTracker.class);
+
   private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
 
   private static final TableName NAME =

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushRegionEntry.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushRegionEntry.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushRegionEntry.java
index 12fdb77..8034365 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushRegionEntry.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestFlushRegionEntry.java
@@ -21,6 +21,7 @@ import static org.junit.Assert.assertEquals;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.client.RegionInfo;
 import org.apache.hadoop.hbase.client.RegionInfoBuilder;
@@ -31,6 +32,7 @@ import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
 import org.apache.hadoop.hbase.util.ManualEnvironmentEdge;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -38,6 +40,11 @@ import org.junit.rules.TestName;
 
 @Category({ RegionServerTests.class, MediumTests.class })
 public class TestFlushRegionEntry {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestFlushRegionEntry.class);
+
   @Rule
   public TestName name = new TestName();
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestGetClosestAtOrBefore.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestGetClosestAtOrBefore.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestGetClosestAtOrBefore.java
index aa38b7a..0db73ba 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestGetClosestAtOrBefore.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestGetClosestAtOrBefore.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -18,17 +17,20 @@
  */
 package org.apache.hadoop.hbase.regionserver;
 
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.CellUtil;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.HRegionInfo;
@@ -45,6 +47,7 @@ import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.wal.WAL;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -52,15 +55,17 @@ import org.junit.rules.TestName;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
-
 /**
  * TestGet is a medley of tests of get all done up as a single test.
  * This class
  */
 @Category({RegionServerTests.class, MediumTests.class})
 public class TestGetClosestAtOrBefore  {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestGetClosestAtOrBefore.class);
+
   @Rule public TestName testName = new TestName();
   private static final Logger LOG = 
LoggerFactory.getLogger(TestGetClosestAtOrBefore.class);
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHMobStore.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHMobStore.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHMobStore.java
index 9845d8a..e8dbdac 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHMobStore.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHMobStore.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -32,9 +31,7 @@ import java.util.List;
 import java.util.NavigableSet;
 import java.util.Optional;
 import java.util.concurrent.ConcurrentSkipListSet;
-
 import javax.crypto.spec.SecretKeySpec;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
@@ -42,6 +39,7 @@ import org.apache.hadoop.hbase.ArrayBackedTag;
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.CellComparatorImpl;
 import org.apache.hadoop.hbase.CellUtil;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
@@ -71,6 +69,7 @@ import org.apache.hadoop.hbase.util.FSUtils;
 import org.apache.hadoop.hbase.wal.WALFactory;
 import org.junit.Assert;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -81,6 +80,11 @@ import org.slf4j.LoggerFactory;
 
 @Category(MediumTests.class)
 public class TestHMobStore {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHMobStore.class);
+
   public static final Logger LOG = 
LoggerFactory.getLogger(TestHMobStore.class);
   @Rule public TestName name = new TestName();
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
index ee11075..e443503 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
@@ -1,5 +1,4 @@
-/*
- *
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -71,7 +70,6 @@ import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hbase.ArrayBackedTag;
-import org.apache.hadoop.hbase.CategoryBasedTimeout;
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.Cell.Type;
 import org.apache.hadoop.hbase.CellBuilderFactory;
@@ -80,6 +78,7 @@ import org.apache.hadoop.hbase.CellUtil;
 import org.apache.hadoop.hbase.CompareOperator;
 import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
 import org.apache.hadoop.hbase.DroppedSnapshotException;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
@@ -173,7 +172,6 @@ import org.junit.Test;
 import org.junit.experimental.categories.Category;
 import org.junit.rules.ExpectedException;
 import org.junit.rules.TestName;
-import org.junit.rules.TestRule;
 import org.mockito.ArgumentCaptor;
 import org.mockito.ArgumentMatcher;
 import org.mockito.Mockito;
@@ -202,14 +200,16 @@ import 
org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.StoreDescript
 @Category({VerySlowRegionServerTests.class, LargeTests.class})
 @SuppressWarnings("deprecation")
 public class TestHRegion {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHRegion.class);
+
   // Do not spin up clusters in here. If you need to spin up a cluster, do it
   // over in TestHRegionOnCluster.
   private static final Logger LOG = LoggerFactory.getLogger(TestHRegion.class);
   @Rule
   public TestName name = new TestName();
-  @ClassRule
-  public static final TestRule timeout =
-      CategoryBasedTimeout.forClass(TestHRegion.class);
   @Rule public final ExpectedException thrown = ExpectedException.none();
 
   private static final String COLUMN_FAMILY = "MyCF";

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java
index 0514005..a4e8e19 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java
@@ -1,5 +1,4 @@
-/*
- *
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -16,7 +15,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.hadoop.hbase.regionserver;
 
 import static org.junit.Assert.assertEquals;
@@ -29,7 +27,6 @@ import java.io.IOException;
 import java.net.URI;
 import java.util.Collection;
 import java.util.List;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FSDataInputStream;
 import org.apache.hadoop.fs.FSDataOutputStream;
@@ -37,6 +34,7 @@ import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.TableName;
@@ -46,11 +44,12 @@ import org.apache.hadoop.hbase.client.Put;
 import org.apache.hadoop.hbase.client.RegionInfo;
 import org.apache.hadoop.hbase.client.RegionInfoBuilder;
 import org.apache.hadoop.hbase.fs.HFileSystem;
+import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
-import org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.FSUtils;
 import org.apache.hadoop.util.Progressable;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -58,8 +57,13 @@ import org.junit.rules.TestName;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-@Category({RegionServerTests.class, SmallTests.class})
+@Category({RegionServerTests.class, MediumTests.class})
 public class TestHRegionFileSystem {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHRegionFileSystem.class);
+
   private static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
   private static final Logger LOG = 
LoggerFactory.getLogger(TestHRegionFileSystem.class);
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionInfo.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionInfo.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionInfo.java
index ae54505..50b675d 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionInfo.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionInfo.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -26,32 +25,40 @@ import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
 import java.io.IOException;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HRegionInfo;
 import org.apache.hadoop.hbase.HTableDescriptor;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.exceptions.DeserializationException;
 import org.apache.hadoop.hbase.master.RegionState;
-import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;
-import 
org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionInfo;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.FSTableDescriptors;
 import org.apache.hadoop.hbase.util.MD5Hash;
 import org.junit.Assert;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 import org.junit.rules.TestName;
 
+import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;
+
+import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;
+import 
org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionInfo;
+
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestHRegionInfo {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHRegionInfo.class);
+
   @Rule
   public TestName name = new TestName();
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionOnCluster.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionOnCluster.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionOnCluster.java
index 9b89768..fd44802 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionOnCluster.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionOnCluster.java
@@ -24,7 +24,7 @@ import static org.junit.Assert.assertTrue;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
-
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HRegionInfo;
@@ -42,6 +42,7 @@ import org.apache.hadoop.hbase.master.HMaster;
 import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.util.Bytes;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -49,7 +50,6 @@ import org.junit.rules.TestName;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-
 /**
  * Tests that need to spin up a cluster testing an {@link HRegion}.  Use
  * {@link TestHRegion} if you don't need a cluster, if you can test w/ a
@@ -58,6 +58,10 @@ import org.slf4j.LoggerFactory;
 @Category({RegionServerTests.class, MediumTests.class})
 public class TestHRegionOnCluster {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHRegionOnCluster.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestHRegionOnCluster.class);
   private static final HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionReplayEvents.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionReplayEvents.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionReplayEvents.java
index dcd7ff7..31eea48 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionReplayEvents.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionReplayEvents.java
@@ -47,6 +47,7 @@ import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.CellUtil;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.KeyValue;
@@ -81,6 +82,7 @@ import org.apache.hadoop.hbase.wal.WALSplitter.MutationReplay;
 import org.apache.hadoop.util.StringUtils;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -110,6 +112,10 @@ import 
org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.StoreDescript
 @Category(MediumTests.class)
 public class TestHRegionReplayEvents {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHRegionReplayEvents.class);
+
   private static final Logger LOG = LoggerFactory.getLogger(TestHRegion.class);
   @Rule public TestName name = new TestName();
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoad.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoad.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoad.java
index 034d9d7..51d2f02 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoad.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoad.java
@@ -29,11 +29,11 @@ import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.concurrent.atomic.AtomicLong;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hbase.Cell;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
@@ -45,7 +45,6 @@ import 
org.apache.hadoop.hbase.MultithreadedTestUtil.RepeatingTestThread;
 import org.apache.hadoop.hbase.MultithreadedTestUtil.TestContext;
 import org.apache.hadoop.hbase.TableExistsException;
 import org.apache.hadoop.hbase.TableName;
-import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;
 import org.apache.hadoop.hbase.client.ClientServiceCallable;
 import org.apache.hadoop.hbase.client.ClusterConnection;
 import org.apache.hadoop.hbase.client.Result;
@@ -56,6 +55,7 @@ import org.apache.hadoop.hbase.client.Scan;
 import org.apache.hadoop.hbase.client.SecureBulkLoadClient;
 import org.apache.hadoop.hbase.client.Table;
 import org.apache.hadoop.hbase.coprocessor.ObserverContext;
+import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;
 import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
 import org.apache.hadoop.hbase.coprocessor.RegionObserver;
 import org.apache.hadoop.hbase.io.compress.Compression;
@@ -76,6 +76,7 @@ import org.apache.hadoop.hbase.wal.WAL;
 import org.apache.hadoop.hbase.wal.WALEdit;
 import org.apache.hadoop.hbase.wal.WALKey;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 import org.junit.runner.RunWith;
@@ -83,7 +84,9 @@ import org.junit.runners.Parameterized;
 import org.junit.runners.Parameterized.Parameters;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
+
 import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;
 import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;
 import 
org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionRequest;
@@ -95,6 +98,11 @@ import 
org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegi
 @RunWith(Parameterized.class)
 @Category({RegionServerTests.class, LargeTests.class})
 public class TestHRegionServerBulkLoad {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHRegionServerBulkLoad.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestHRegionServerBulkLoad.class);
   protected static HBaseTestingUtility UTIL = new HBaseTestingUtility();
   protected final static Configuration conf = UTIL.getConfiguration();

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoadWithOldClient.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoadWithOldClient.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoadWithOldClient.java
index 3e0b727..de01401 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoadWithOldClient.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionServerBulkLoadWithOldClient.java
@@ -21,9 +21,9 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicLong;
-
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.MultithreadedTestUtil.RepeatingTestThread;
 import org.apache.hadoop.hbase.MultithreadedTestUtil.TestContext;
@@ -33,21 +33,24 @@ import org.apache.hadoop.hbase.client.ClusterConnection;
 import org.apache.hadoop.hbase.client.RpcRetryingCaller;
 import org.apache.hadoop.hbase.client.RpcRetryingCallerFactory;
 import org.apache.hadoop.hbase.ipc.RpcControllerFactory;
-import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;
-import 
org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionRequest;
-import 
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileRequest;
 import org.apache.hadoop.hbase.testclassification.LargeTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.Pair;
+import org.junit.ClassRule;
 import org.junit.experimental.categories.Category;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
 
+import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;
+import 
org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionRequest;
+import 
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileRequest;
+
 /**
  * Tests bulk loading of HFiles with old non-secure client for backward 
compatibility. Will be
  * removed when old non-secure client for backward compatibility is not 
supported.
@@ -55,6 +58,11 @@ import 
org.apache.hbase.thirdparty.com.google.common.collect.Lists;
 @RunWith(Parameterized.class)
 @Category({RegionServerTests.class, LargeTests.class})
 public class TestHRegionServerBulkLoadWithOldClient extends 
TestHRegionServerBulkLoad {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      
HBaseClassTestRule.forClass(TestHRegionServerBulkLoadWithOldClient.class);
+
   private static final Logger LOG =
       LoggerFactory.getLogger(TestHRegionServerBulkLoadWithOldClient.class);
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionWithInMemoryFlush.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionWithInMemoryFlush.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionWithInMemoryFlush.java
index ac10a35..dfe52d0 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionWithInMemoryFlush.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionWithInMemoryFlush.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -19,8 +18,7 @@
 package org.apache.hadoop.hbase.regionserver;
 
 import java.io.IOException;
-
-import org.apache.hadoop.hbase.CategoryBasedTimeout;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.client.Durability;
@@ -29,7 +27,6 @@ import 
org.apache.hadoop.hbase.testclassification.VerySlowRegionServerTests;
 import org.apache.hadoop.hbase.wal.WAL;
 import org.junit.ClassRule;
 import org.junit.experimental.categories.Category;
-import org.junit.rules.TestRule;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -40,12 +37,14 @@ import org.slf4j.LoggerFactory;
 @Category({VerySlowRegionServerTests.class, LargeTests.class})
 @SuppressWarnings("deprecation")
 public class TestHRegionWithInMemoryFlush extends TestHRegion{
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHRegionWithInMemoryFlush.class);
+
   // Do not spin up clusters in here. If you need to spin up a cluster, do it
   // over in TestHRegionOnCluster.
   private static final Logger LOG = 
LoggerFactory.getLogger(TestHRegionWithInMemoryFlush.class);
-  @ClassRule
-  public static final TestRule timeout =
-      CategoryBasedTimeout.forClass(TestHRegionWithInMemoryFlush.class);
 
   /**
    * @return A region on which you must call

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStore.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStore.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStore.java
index 288333b..9d6aedb 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStore.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStore.java
@@ -61,6 +61,7 @@ import org.apache.hadoop.hbase.CellBuilderType;
 import org.apache.hadoop.hbase.CellComparator;
 import org.apache.hadoop.hbase.CellComparatorImpl;
 import org.apache.hadoop.hbase.CellUtil;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
@@ -105,6 +106,7 @@ import org.apache.hadoop.util.Progressable;
 import org.junit.After;
 import org.junit.AfterClass;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -120,6 +122,11 @@ import 
org.apache.hbase.thirdparty.com.google.common.collect.Lists;
  */
 @Category({ RegionServerTests.class, MediumTests.class })
 public class TestHStore {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHStore.class);
+
   private static final Logger LOG = LoggerFactory.getLogger(TestHStore.class);
   @Rule
   public TestName name = new TestName();

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStoreFile.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStoreFile.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStoreFile.java
index 1a38d7f..72da1a3 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStoreFile.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHStoreFile.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -18,6 +17,9 @@
  */
 package org.apache.hadoop.hbase.regionserver;
 
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
@@ -29,20 +31,20 @@ import java.util.Map;
 import java.util.OptionalLong;
 import java.util.TreeSet;
 import java.util.concurrent.atomic.AtomicInteger;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.CellUtil;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestCase;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.HRegionInfo;
-import org.apache.hadoop.hbase.PrivateCellUtil;
 import org.apache.hadoop.hbase.KeyValue;
 import org.apache.hadoop.hbase.KeyValueUtil;
+import org.apache.hadoop.hbase.PrivateCellUtil;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
 import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
@@ -65,23 +67,27 @@ import org.apache.hadoop.hbase.util.ChecksumType;
 import org.apache.hadoop.hbase.util.FSUtils;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 import org.mockito.Mockito;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import org.apache.hbase.thirdparty.com.google.common.base.Joiner;
 import org.apache.hbase.thirdparty.com.google.common.collect.Iterables;
 import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
 
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.when;
-
 /**
  * Test HStoreFile
  */
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestHStoreFile extends HBaseTestCase {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHStoreFile.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestHStoreFile.class);
   private static final HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();
   private CacheConfig cacheConf =  new 
CacheConfig(TEST_UTIL.getConfiguration());

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHdfsSnapshotHRegion.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHdfsSnapshotHRegion.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHdfsSnapshotHRegion.java
index 17e698f..feea086 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHdfsSnapshotHRegion.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHdfsSnapshotHRegion.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -22,6 +21,7 @@ import java.io.IOException;
 import org.apache.commons.lang.StringUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.client.RegionInfo;
@@ -34,12 +34,17 @@ import org.apache.hadoop.hdfs.DFSClient;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, MediumTests.class})
 public class TestHdfsSnapshotHRegion {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHdfsSnapshotHRegion.class);
+
   private static final HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();
   private static final String SNAPSHOT_NAME = "foo_snapshot";
   private Table table;

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHeapMemoryManager.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHeapMemoryManager.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHeapMemoryManager.java
index c71e0c7..41bfd48 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHeapMemoryManager.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHeapMemoryManager.java
@@ -1,5 +1,4 @@
-/*
- *
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -26,11 +25,11 @@ import static org.junit.Assert.fail;
 import java.io.IOException;
 import java.lang.management.ManagementFactory;
 import java.util.Iterator;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.hbase.ChoreService;
 import org.apache.hadoop.hbase.CoordinatedStateManager;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
@@ -52,12 +51,17 @@ import 
org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;
 import org.apache.hadoop.hbase.zookeeper.ZKWatcher;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestHeapMemoryManager {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestHeapMemoryManager.class);
+
   private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
 
   private long maxHeapSize = 
ManagementFactory.getMemoryMXBean().getHeapMemoryUsage().getMax();

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestJoinedScanners.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestJoinedScanners.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestJoinedScanners.java
index d218389..8e84f8a 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestJoinedScanners.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestJoinedScanners.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -22,13 +21,13 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Random;
-
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.CommandLineParser;
 import org.apache.commons.cli.GnuParser;
 import org.apache.commons.cli.HelpFormatter;
 import org.apache.commons.cli.Option;
 import org.apache.commons.cli.Options;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HColumnDescriptor;
 import org.apache.hadoop.hbase.HTableDescriptor;
@@ -45,6 +44,7 @@ import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding;
 import org.apache.hadoop.hbase.testclassification.LargeTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.util.Bytes;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -58,6 +58,11 @@ import org.slf4j.LoggerFactory;
  */
 @Category({RegionServerTests.class, LargeTests.class})
 public class TestJoinedScanners {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestJoinedScanners.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestJoinedScanners.class);
 
   private static final HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();
@@ -188,24 +193,24 @@ public class TestJoinedScanners {
       "Data block encoding; Default: FAST_DIFF");
     encodingOption.setRequired(false);
     options.addOption(encodingOption);
-    
+
     Option ratioOption = new Option("r", "selectionRatio", true,
       "Ratio of selected rows using essential column family");
     ratioOption.setRequired(false);
     options.addOption(ratioOption);
-    
+
     Option widthOption = new Option("w", "valueWidth", true,
       "Width of value for non-essential column family");
     widthOption.setRequired(false);
     options.addOption(widthOption);
-    
+
     CommandLineParser parser = new GnuParser();
     CommandLine cmd = parser.parse(options, args);
     if (args.length < 1) {
       HelpFormatter formatter = new HelpFormatter();
       formatter.printHelp("TestJoinedScanners", options, true);
     }
-    
+
     if (cmd.hasOption("e")) {
       blockEncoding = DataBlockEncoding.valueOf(cmd.getOptionValue("e"));
     }

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeepDeletes.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeepDeletes.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeepDeletes.java
index ee29ef2..12a5312 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeepDeletes.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeepDeletes.java
@@ -27,14 +27,14 @@ import static org.junit.Assert.fail;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
-
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.CellUtil;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
 import org.apache.hadoop.hbase.HTableDescriptor;
-import org.apache.hadoop.hbase.PrivateCellUtil;
 import org.apache.hadoop.hbase.KeepDeletedCells;
+import org.apache.hadoop.hbase.PrivateCellUtil;
 import org.apache.hadoop.hbase.client.Delete;
 import org.apache.hadoop.hbase.client.Get;
 import org.apache.hadoop.hbase.client.Put;
@@ -48,6 +48,7 @@ import 
org.apache.hadoop.hbase.util.EnvironmentEdgeManagerTestHelper;
 import org.apache.hadoop.hbase.util.IncrementingEnvironmentEdge;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -55,6 +56,11 @@ import org.junit.rules.TestName;
 
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestKeepDeletes {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestKeepDeletes.class);
+
   HBaseTestingUtility hbu = HBaseTestingUtility.createLocalHTU();
   private final byte[] T0 = Bytes.toBytes("0");
   private final byte[] T1 = Bytes.toBytes("1");
@@ -68,7 +74,7 @@ public class TestKeepDeletes {
   private final byte[] c1 = COLUMNS[1];
 
   @Rule public TestName name = new TestName();
-  
+
   @Before
   public void setUp() throws Exception {
     /* HBASE-6832: [WINDOWS] Tests should use explicit timestamp for Puts, and 
not rely on

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueHeap.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueHeap.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueHeap.java
index d9956de..839bcaa 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueHeap.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueHeap.java
@@ -1,5 +1,4 @@
-/*
- *
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -16,16 +15,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.hadoop.hbase.regionserver;
 
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
-
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.CellComparatorImpl;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestCase;
 import org.apache.hadoop.hbase.KeyValue;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
@@ -33,11 +31,17 @@ import 
org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.util.CollectionBackedScanner;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestKeyValueHeap extends HBaseTestCase {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestKeyValueHeap.class);
+
   private byte[] row1 = Bytes.toBytes("row1");
   private byte[] fam1 = Bytes.toBytes("fam1");
   private byte[] col1 = Bytes.toBytes("col1");

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueScanFixture.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueScanFixture.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueScanFixture.java
index 0c071a6..da46ef5 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueScanFixture.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestKeyValueScanFixture.java
@@ -1,5 +1,4 @@
-/*
- *
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -16,26 +15,29 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.hadoop.hbase.regionserver;
 
 import java.io.IOException;
-
 import junit.framework.TestCase;
-
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.CellComparator;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.KeyValue;
 import org.apache.hadoop.hbase.KeyValueTestUtil;
 import org.apache.hadoop.hbase.KeyValueUtil;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.apache.hadoop.hbase.util.Bytes;
+import org.junit.ClassRule;
 import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestKeyValueScanFixture extends TestCase {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestKeyValueScanFixture.class);
+
 
   public void testKeyValueScanFixture() throws IOException {
     KeyValue kvs[] = new KeyValue[]{

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMajorCompaction.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMajorCompaction.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMajorCompaction.java
index 0840a63..e261886 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMajorCompaction.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMajorCompaction.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -34,10 +33,10 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.Cell;
 import org.apache.hadoop.hbase.CellUtil;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseTestCase;
 import org.apache.hadoop.hbase.HBaseTestingUtility;
 import org.apache.hadoop.hbase.HConstants;
@@ -61,6 +60,7 @@ import org.apache.hadoop.hbase.util.Bytes;
 import org.apache.hadoop.hbase.wal.WAL;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
@@ -76,6 +76,11 @@ import org.slf4j.LoggerFactory;
 @Category({RegionServerTests.class, MediumTests.class})
 @RunWith(Parameterized.class)
 public class TestMajorCompaction {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMajorCompaction.class);
+
   @Parameterized.Parameters
   public static Object[] data() {
     return new Object[] { "NONE", "BASIC", "EAGER" };

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMasterAddressTracker.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMasterAddressTracker.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMasterAddressTracker.java
index e4b3754..2a89b99 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMasterAddressTracker.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMasterAddressTracker.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -24,8 +23,8 @@ import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 
 import java.util.concurrent.Semaphore;
-
 import org.apache.hadoop.hbase.*;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.testclassification.MediumTests;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.zookeeper.MasterAddressTracker;
@@ -34,15 +33,21 @@ import org.apache.hadoop.hbase.zookeeper.ZKUtil;
 import org.apache.hadoop.hbase.zookeeper.ZKWatcher;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
-import org.junit.Test;
+import org.junit.ClassRule;
 import org.junit.Rule;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
 import org.junit.rules.TestName;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, MediumTests.class})
 public class TestMasterAddressTracker {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMasterAddressTracker.class);
+
   private static final Logger LOG = 
LoggerFactory.getLogger(TestMasterAddressTracker.class);
 
   private final static HBaseTestingUtility TEST_UTIL = new 
HBaseTestingUtility();

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreChunkPool.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreChunkPool.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreChunkPool.java
index 69d7589..891e835 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreChunkPool.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreChunkPool.java
@@ -1,25 +1,33 @@
 /**
- * Copyright The Apache Software Foundation
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with this
- * work for additional information regarding copyright ownership. The ASF
- * licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 package org.apache.hadoop.hbase.regionserver;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.lang.management.ManagementFactory;
+import java.nio.ByteBuffer;
+import java.util.List;
+import java.util.Random;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.ByteBufferKeyValue;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.KeyValue;
 import org.apache.hadoop.hbase.KeyValueUtil;
 import org.apache.hadoop.hbase.exceptions.UnexpectedStateException;
@@ -30,23 +38,20 @@ import org.apache.hadoop.hbase.util.Bytes;
 import org.junit.After;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
-import java.io.IOException;
-import java.lang.management.ManagementFactory;
-import java.nio.ByteBuffer;
-import java.util.List;
-import java.util.Random;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
 /**
  * Test the {@link MemStoreChunkPool} class
  */
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestMemStoreChunkPool {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMemStoreChunkPool.class);
+
   private final static Configuration conf = new Configuration();
   private static ChunkCreator chunkCreator;
   private static boolean chunkPoolDisabledBeforeTest;

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreLAB.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreLAB.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreLAB.java
index 795fa2f..52491e7 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreLAB.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreLAB.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -27,10 +26,10 @@ import java.util.List;
 import java.util.Map;
 import java.util.Random;
 import java.util.concurrent.atomic.AtomicInteger;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.ByteBufferKeyValue;
 import org.apache.hadoop.hbase.Cell;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.KeyValue;
 import org.apache.hadoop.hbase.KeyValueUtil;
@@ -42,18 +41,22 @@ import 
org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Test;
+import org.junit.experimental.categories.Category;
 
 import org.apache.hbase.thirdparty.com.google.common.collect.Iterables;
 import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
 import org.apache.hbase.thirdparty.com.google.common.collect.Maps;
 import org.apache.hbase.thirdparty.com.google.common.primitives.Ints;
 
-import org.junit.experimental.categories.Category;
-
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestMemStoreLAB {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMemStoreLAB.class);
+
   private final static Configuration conf = new Configuration();
 
   private static final byte[] rk = Bytes.toBytes("r1");
@@ -126,16 +129,16 @@ public class TestMemStoreLAB {
     Configuration conf = new Configuration();
     MultithreadedTestUtil.TestContext ctx =
       new MultithreadedTestUtil.TestContext(conf);
-    
+
     final AtomicInteger totalAllocated = new AtomicInteger();
-    
+
     final MemStoreLAB mslab = new MemStoreLABImpl();
     List<List<AllocRecord>> allocations = Lists.newArrayList();
-    
+
     for (int i = 0; i < 10; i++) {
       final List<AllocRecord> allocsByThisThread = Lists.newLinkedList();
       allocations.add(allocsByThisThread);
-      
+
       TestThread t = new MultithreadedTestUtil.RepeatingTestThread(ctx) {
         private Random r = new Random();
         @Override
@@ -176,7 +179,7 @@ public class TestMemStoreLAB {
           oldVal);
     }
     assertEquals("Sanity check test", sizeCounted, totalAllocated.get());
-    
+
     // Now check each byte array to make sure allocations don't overlap
     for (Map<Integer, AllocRecord> allocsInChunk : mapsByChunk.values()) {
       // since we add the chunkID at the 0th offset of the chunk and the
@@ -304,7 +307,7 @@ public class TestMemStoreLAB {
       }
       return Ints.compare(this.offset, e.offset);
     }
-    
+
     @Override
     public String toString() {
       return "AllocRecord(offset=" + this.offset + ", size=" + size + ")";

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemstoreLABWithoutPool.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemstoreLABWithoutPool.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemstoreLABWithoutPool.java
index 1378087..0813a8c 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemstoreLABWithoutPool.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemstoreLABWithoutPool.java
@@ -1,5 +1,4 @@
 /**
- *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -26,10 +25,10 @@ import java.nio.ByteBuffer;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Random;
-
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.ByteBufferKeyValue;
 import org.apache.hadoop.hbase.Cell;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.HBaseConfiguration;
 import org.apache.hadoop.hbase.KeyValue;
 import org.apache.hadoop.hbase.KeyValueUtil;
@@ -37,14 +36,19 @@ import 
org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.apache.hadoop.hbase.util.Bytes;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
-
 @Ignore // See HBASE-19742 for issue on reenabling.
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestMemstoreLABWithoutPool {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMemstoreLABWithoutPool.class);
+
   private final static Configuration conf = new Configuration();
 
   private static final byte[] rk = Bytes.toBytes("r1");

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsHeapMemoryManager.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsHeapMemoryManager.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsHeapMemoryManager.java
index 44f4961..9958ca6 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsHeapMemoryManager.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsHeapMemoryManager.java
@@ -1,30 +1,31 @@
-/*
- * Copyright The Apache Software Foundation
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with this
- * work for additional information regarding copyright ownership. The ASF
- * licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 package org.apache.hadoop.hbase.regionserver;
 
 import static org.junit.Assert.assertNotNull;
 
 import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.test.MetricsAssertHelper;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
 import org.junit.Before;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
@@ -33,6 +34,11 @@ import org.junit.experimental.categories.Category;
  */
 @Category({ RegionServerTests.class, SmallTests.class })
 public class TestMetricsHeapMemoryManager {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMetricsHeapMemoryManager.class);
+
   public static MetricsAssertHelper HELPER = CompatibilitySingletonFactory
       .getInstance(MetricsAssertHelper.class);
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegion.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegion.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegion.java
index e86f1e5..2119b91 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegion.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegion.java
@@ -15,19 +15,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.apache.hadoop.hbase.regionserver;
 
 import org.apache.hadoop.hbase.CompatibilityFactory;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.test.MetricsAssertHelper;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
-import org.apache.hadoop.hbase.test.MetricsAssertHelper;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestMetricsRegion {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMetricsRegion.class);
+
 
   public MetricsAssertHelper HELPER = 
CompatibilityFactory.getInstance(MetricsAssertHelper.class);
 
@@ -37,7 +42,7 @@ public class TestMetricsRegion {
     MetricsRegionAggregateSource agg = mr.getSource().getAggregateSource();
 
     HELPER.assertGauge(
-      
"namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeCount",
 
+      
"namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeCount",
       101, agg);
     HELPER.assertGauge(
       
"namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeFileCount",
@@ -62,7 +67,7 @@ public class TestMetricsRegion {
         "filteredReadRequestCount",
       107, agg);
     HELPER.assertCounter(
-      
"namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_replicaid",
 
+      
"namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_replicaid",
       0, agg);
     mr.close();
 
@@ -70,7 +75,7 @@ public class TestMetricsRegion {
     mr = new MetricsRegion(new MetricsRegionWrapperStub(1));
     agg = mr.getSource().getAggregateSource();
     HELPER.assertGauge(
-      
"namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeCount",
 
+      
"namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeCount",
       101, agg);
     HELPER.assertGauge(
       
"namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeFileCount",

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegionServer.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegionServer.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegionServer.java
index 67b186e..bfc0b63 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegionServer.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegionServer.java
@@ -17,24 +17,31 @@
  */
 package org.apache.hadoop.hbase.regionserver;
 
+import static org.junit.Assert.assertNotNull;
+
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hbase.CompatibilityFactory;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.test.MetricsAssertHelper;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
-import org.apache.hadoop.hbase.test.MetricsAssertHelper;
 import org.apache.hadoop.hbase.util.JvmPauseMonitor;
 import org.junit.Before;
 import org.junit.BeforeClass;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
-import static org.junit.Assert.assertNotNull;
-
 /**
  * Unit test version of rs metrics tests.
  */
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestMetricsRegionServer {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMetricsRegionServer.class);
+
   public static MetricsAssertHelper HELPER =
       CompatibilityFactory.getInstance(MetricsAssertHelper.class);
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableAggregate.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableAggregate.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableAggregate.java
index 5130e57..e3bac65 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableAggregate.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableAggregate.java
@@ -20,15 +20,21 @@ package org.apache.hadoop.hbase.regionserver;
 import java.io.IOException;
 import org.apache.hadoop.hbase.CompatibilityFactory;
 import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.test.MetricsAssertHelper;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestMetricsTableAggregate {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMetricsTableAggregate.class);
+
   public static MetricsAssertHelper HELPER =
       CompatibilityFactory.getInstance(MetricsAssertHelper.class);
 

http://git-wip-us.apache.org/repos/asf/hbase/blob/bbf3bae7/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableLatencies.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableLatencies.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableLatencies.java
index a845acd..43e8d58 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableLatencies.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsTableLatencies.java
@@ -22,16 +22,22 @@ import static org.junit.Assert.assertTrue;
 import java.io.IOException;
 import org.apache.hadoop.hbase.CompatibilityFactory;
 import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.test.MetricsAssertHelper;
 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
 import org.apache.hadoop.hbase.testclassification.SmallTests;
+import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
 @Category({RegionServerTests.class, SmallTests.class})
 public class TestMetricsTableLatencies {
 
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+      HBaseClassTestRule.forClass(TestMetricsTableLatencies.class);
+
   public static MetricsAssertHelper HELPER =
       CompatibilityFactory.getInstance(MetricsAssertHelper.class);
 

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