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janh pushed a commit to branch branch-2.0
in repository https://gitbox.apache.org/repos/asf/hbase.git
The following commit(s) were added to refs/heads/branch-2.0 by this push:
new ecb0fd0 HBASE-22231 Removed unused and '*' import
ecb0fd0 is described below
commit ecb0fd0f280122774ae6ec21655ea797b16814b7
Author: Jan Hentschel <[email protected]>
AuthorDate: Sun Apr 21 23:37:22 2019 +0200
HBASE-22231 Removed unused and '*' import
---
.../hbase/client/ClientAsyncPrefetchScanner.java | 1 -
.../hbase/client/ImmutableHTableDescriptor.java | 5 ++--
.../hadoop/hbase/ipc/CoprocessorRpcUtils.java | 1 -
.../org/apache/hadoop/hbase/ipc/FailedServers.java | 3 ---
.../hbase/ipc/RemoteWithExtrasException.java | 3 +--
.../apache/hadoop/hbase/quotas/QuotaRetriever.java | 2 --
.../apache/hadoop/hbase/quotas/QuotaTableUtil.java | 1 -
.../hadoop/hbase/security/EncryptionUtil.java | 1 -
.../hadoop/hbase/shaded/protobuf/ProtobufUtil.java | 1 -
.../snapshot/ClientSnapshotDescriptionUtils.java | 1 -
.../hadoop/hbase/client/TestMetricsConnection.java | 1 -
.../hbase/client/TestReversedScannerCallable.java | 1 -
.../hadoop/hbase/filter/TestComparators.java | 1 -
.../hadoop/hbase/HBaseClassTestRuleChecker.java | 1 -
.../java/org/apache/hadoop/hbase/TestTimeout.java | 1 -
.../org/apache/hadoop/hbase/net/TestAddress.java | 1 -
.../hbase/IntegrationTestRegionReplicaPerf.java | 27 +++++++++++++---------
.../chaos/factories/MobNoKillMonkeyFactory.java | 19 ++++++++++++++-
.../MobSlowDeterministicMonkeyFactory.java | 24 ++++++++++++++++++-
.../factories/SlowDeterministicMonkeyFactory.java | 26 ++++++++++++++++++++-
.../StressAssignmentManagerMonkeyFactory.java | 20 +++++++++++++++-
.../hbase/mapred/TableSnapshotInputFormat.java | 1 -
.../apache/hadoop/hbase/mapreduce/CellCounter.java | 1 -
.../apache/hadoop/hbase/mapreduce/ExportUtils.java | 1 -
.../hbase/mapreduce/TableInputFormatBase.java | 1 -
.../hadoop/hbase/mapred/TestTableInputFormat.java | 7 ++++--
.../hadoop/hbase/mapreduce/TestCellCounter.java | 5 +++-
.../mapreduce/TestSimpleTotalOrderPartitioner.java | 3 ++-
.../hbase/mapreduce/TestTableInputFormat.java | 8 +++++--
.../hbase/snapshot/TestMobExportSnapshot.java | 1 -
.../snapshot/TestMobSecureExportSnapshot.java | 1 -
.../TestProcedureSchedulerConcurrency.java | 4 ----
.../wal/ProcedureWALPerformanceEvaluation.java | 8 ++++---
.../hbase/replication/ReplicationTableBase.java | 1 -
.../rest/filter/RestCsrfPreventionFilter.java | 1 -
.../apache/hadoop/hbase/rest/RowResourceBase.java | 3 ++-
.../hadoop/hbase/rest/TestSecureRESTServer.java | 1 -
.../hbase/client/ClientSideRegionScanner.java | 1 -
.../hadoop/hbase/coprocessor/EndpointObserver.java | 10 ++++----
.../hbase/coprocessor/RegionServerObserver.java | 1 -
.../hadoop/hbase/io/HalfStoreFileReader.java | 1 -
.../hadoop/hbase/ipc/RWQueueRpcExecutor.java | 1 -
.../org/apache/hadoop/hbase/master/HMaster.java | 1 -
.../apache/hadoop/hbase/master/MasterServices.java | 1 -
.../apache/hadoop/hbase/master/RackManager.java | 1 -
.../apache/hadoop/hbase/mob/MobCacheConfig.java | 1 -
.../hbase/procedure/MasterProcedureManager.java | 1 -
.../flush/MasterFlushTableProcedureManager.java | 1 -
.../hadoop/hbase/quotas/NoopQuotaLimiter.java | 1 -
.../apache/hadoop/hbase/quotas/QuotaLimiter.java | 1 -
.../ConstantSizeRegionSplitPolicy.java | 1 -
.../hbase/regionserver/FlushPolicyFactory.java | 1 -
.../hbase/regionserver/ScannerIdGenerator.java | 4 ----
.../hadoop/hbase/regionserver/StoreFlusher.java | 1 -
.../hbase/regionserver/TimeRangeTracker.java | 1 -
.../MajorCompactionScanQueryMatcher.java | 1 -
.../MinorCompactionScanQueryMatcher.java | 1 -
.../querymatcher/NewVersionBehaviorTracker.java | 1 -
.../querymatcher/NormalUserScanQueryMatcher.java | 1 -
.../StripeCompactionScanQueryMatcher.java | 1 -
.../regionserver/ReplicationObserver.java | 15 +++++-------
.../replication/regionserver/WALEntryStream.java | 1 -
.../apache/hadoop/hbase/util/CompressionTest.java | 1 -
.../apache/hadoop/hbase/util/RowBloomContext.java | 1 -
.../apache/hadoop/hbase/wal/FSHLogProvider.java | 1 -
.../hadoop/hbase/TestClientClusterStatus.java | 1 -
.../hadoop/hbase/TestClusterPortAssignment.java | 1 -
.../org/apache/hadoop/hbase/TestIOFencing.java | 1 -
.../hadoop/hbase/TestJMXConnectorServer.java | 2 --
.../hadoop/hbase/backup/TestHFileArchiving.java | 8 ++++---
.../hbase/client/HConnectionTestingUtility.java | 16 ++++++-------
.../hbase/client/TestAsyncNamespaceAdminApi.java | 1 -
.../TestAsyncTableLocateRegionForDeletedTable.java | 1 -
.../hadoop/hbase/client/TestClientPushback.java | 5 +++-
.../apache/hadoop/hbase/client/TestMetaCache.java | 11 ++++++++-
.../hbase/client/TestMultipleTimestamps.java | 9 +++++---
.../hadoop/hbase/client/TestPutWithDelete.java | 5 +++-
.../hadoop/hbase/client/TestScannerTimeout.java | 1 -
.../hadoop/hbase/client/TestTimestampsFilter.java | 8 +++++--
.../hadoop/hbase/constraint/TestConstraint.java | 3 ---
.../hbase/coprocessor/TestCoprocessorStop.java | 4 +++-
.../hadoop/hbase/filter/TestColumnRangeFilter.java | 8 +++++--
.../hbase/filter/TestDependentColumnFilter.java | 1 -
.../hadoop/hbase/filter/TestFilterListOnMini.java | 6 ++++-
.../hbase/filter/TestFilterSerialization.java | 1 -
.../hbase/filter/TestSingleColumnValueFilter.java | 1 -
.../hadoop/hbase/io/hfile/TestCacheOnWrite.java | 1 -
.../io/hfile/TestForceCacheImportantBlocks.java | 1 -
.../hfile/TestScannerSelectionUsingKeyRange.java | 1 -
.../apache/hadoop/hbase/ipc/AbstractTestIPC.java | 1 -
.../org/apache/hadoop/hbase/master/TestMaster.java | 2 --
.../hadoop/hbase/master/TestMasterFileSystem.java | 3 ---
.../master/TestMasterFileSystemWithWALDir.java | 1 -
.../hadoop/hbase/master/TestMasterMetrics.java | 1 -
.../master/TestMirroringTableStateManager.java | 1 -
.../hadoop/hbase/master/TestTableStateManager.java | 1 -
.../assignment/TestUnexpectedStateException.java | 1 -
.../balancer/TestFavoredNodeTableImport.java | 1 -
.../hbase/mob/TestDefaultMobStoreFlusher.java | 6 ++++-
.../hbase/mob/TestExpiredMobFileCleaner.java | 5 +++-
.../hbase/namespace/TestNamespaceAuditor.java | 3 ---
.../quotas/TestNamespaceQuotaViolationStore.java | 1 -
.../regionserver/DelegatingKeyValueScanner.java | 2 --
.../hbase/regionserver/OOMERegionServer.java | 1 -
.../hadoop/hbase/regionserver/TestBlocksRead.java | 8 +++++--
.../hbase/regionserver/TestCompactSplitThread.java | 8 +++++--
.../hbase/regionserver/TestDeleteMobTable.java | 6 ++++-
.../hadoop/hbase/regionserver/TestHRegionInfo.java | 3 ---
.../regionserver/TestMasterAddressTracker.java | 3 ++-
.../hadoop/hbase/regionserver/TestQosFunction.java | 4 +++-
.../hadoop/hbase/regionserver/TestRegionOpen.java | 1 -
.../hbase/regionserver/TestRegionServerAbort.java | 1 -
.../hbase/regionserver/TestResettingCounters.java | 11 +++++++--
.../hadoop/hbase/regionserver/TestRowTooBig.java | 7 +++++-
.../regionserver/TestSimpleTimeRangeTracker.java | 1 -
.../TestWalAndCompactingMemStoreFlush.java | 9 +++++++-
.../hbase/regionserver/wal/AbstractTestFSWAL.java | 5 ++--
.../regionserver/wal/FaultyProtobufLogReader.java | 2 --
.../regionserver/wal/TestWALConfiguration.java | 1 -
.../replication/TestMultiSlaveReplication.java | 10 +++++---
.../replication/TestReplicationDroppedTables.java | 2 --
...stRegionReplicaReplicationEndpointNoMaster.java | 1 -
.../apache/hadoop/hbase/tool/TestCanaryTool.java | 5 +++-
.../apache/hadoop/hbase/util/TestFSVisitor.java | 4 +++-
.../hbase/zookeeper/TestZKLeaderManager.java | 1 -
125 files changed, 266 insertions(+), 196 deletions(-)
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ClientAsyncPrefetchScanner.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ClientAsyncPrefetchScanner.java
index 4529cf5..7905a18 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ClientAsyncPrefetchScanner.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ClientAsyncPrefetchScanner.java
@@ -27,7 +27,6 @@ import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ImmutableHTableDescriptor.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ImmutableHTableDescriptor.java
index 328c62b..8539cef 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ImmutableHTableDescriptor.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ImmutableHTableDescriptor.java
@@ -18,11 +18,10 @@
*/
package org.apache.hadoop.hbase.client;
-import org.apache.yetus.audience.InterfaceAudience;
-import
org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor;
-import
org.apache.hadoop.hbase.client.TableDescriptorBuilder.ModifyableTableDescriptor;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
+import
org.apache.hadoop.hbase.client.TableDescriptorBuilder.ModifyableTableDescriptor;
+import org.apache.yetus.audience.InterfaceAudience;
/**
* Read-only table descriptor.
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/CoprocessorRpcUtils.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/CoprocessorRpcUtils.java
index c362725..cfee187 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/CoprocessorRpcUtils.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/CoprocessorRpcUtils.java
@@ -30,7 +30,6 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.hbase.exceptions.UnknownProtocolException;
import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;
-import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;
import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter;
import
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceCall;
import
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceRequest;
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/FailedServers.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/FailedServers.java
index 9b573ad..86b763b 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/FailedServers.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/FailedServers.java
@@ -19,8 +19,6 @@ package org.apache.hadoop.hbase.ipc;
import java.net.InetSocketAddress;
import java.util.HashMap;
-import java.util.Iterator;
-import java.util.LinkedList;
import java.util.Map;
import org.apache.hadoop.conf.Configuration;
@@ -28,7 +26,6 @@ import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
-import org.apache.hadoop.hbase.util.Pair;
/**
* A class to manage a list of servers that failed recently.
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/RemoteWithExtrasException.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/RemoteWithExtrasException.java
index 3a7540e..bfc66e6 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/RemoteWithExtrasException.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/RemoteWithExtrasException.java
@@ -25,10 +25,9 @@ import java.security.PrivilegedAction;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.DoNotRetryIOException;
import org.apache.hadoop.hbase.HBaseConfiguration;
-import org.apache.yetus.audience.InterfaceAudience;
-import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.util.DynamicClassLoader;
import org.apache.hadoop.ipc.RemoteException;
+import org.apache.yetus.audience.InterfaceAudience;
/**
* A {@link RemoteException} with some extra information. If source exception
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaRetriever.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaRetriever.java
index 1e79186..d8dd50b 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaRetriever.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaRetriever.java
@@ -26,7 +26,6 @@ import java.util.Objects;
import java.util.Queue;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.TableName;
import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -36,7 +35,6 @@ import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.Table;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.Quotas;
import org.apache.hadoop.util.StringUtils;
/**
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java
index 28ef3c2..925cb17 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaTableUtil.java
@@ -57,7 +57,6 @@ import org.apache.hadoop.hbase.filter.RowFilter;
import org.apache.hadoop.hbase.protobuf.ProtobufMagic;
import org.apache.hbase.thirdparty.com.google.protobuf.ByteString;
import
org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;
-import org.apache.hbase.thirdparty.com.google.protobuf.TextFormat;
import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;
import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/security/EncryptionUtil.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/security/EncryptionUtil.java
index c18b3e3..72fd0c8 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/security/EncryptionUtil.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/security/EncryptionUtil.java
@@ -29,7 +29,6 @@ import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.crypto.cipher.CryptoCipherFactory;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.yetus.audience.InterfaceStability;
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/ProtobufUtil.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/ProtobufUtil.java
index 9241334..a657563 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/ProtobufUtil.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/ProtobufUtil.java
@@ -39,7 +39,6 @@ import java.util.function.Function;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
-import org.apache.commons.io.input.BoundedInputStream;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.ByteBufferExtendedCell;
diff --git
a/hbase-client/src/main/java/org/apache/hadoop/hbase/snapshot/ClientSnapshotDescriptionUtils.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/snapshot/ClientSnapshotDescriptionUtils.java
index e3fd5e7..5a25c52 100644
---
a/hbase-client/src/main/java/org/apache/hadoop/hbase/snapshot/ClientSnapshotDescriptionUtils.java
+++
b/hbase-client/src/main/java/org/apache/hadoop/hbase/snapshot/ClientSnapshotDescriptionUtils.java
@@ -21,7 +21,6 @@ package org.apache.hadoop.hbase.snapshot;
import org.apache.hadoop.hbase.TableName;
import org.apache.yetus.audience.InterfaceAudience;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;
import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos;
import org.apache.hadoop.hbase.util.Bytes;
diff --git
a/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestMetricsConnection.java
b/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestMetricsConnection.java
index 97a672d..946cac7 100644
---
a/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestMetricsConnection.java
+++
b/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestMetricsConnection.java
@@ -24,7 +24,6 @@ import com.codahale.metrics.RatioGauge.Ratio;
import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
-import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.testclassification.ClientTests;
import org.apache.hadoop.hbase.testclassification.MetricsTests;
diff --git
a/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestReversedScannerCallable.java
b/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestReversedScannerCallable.java
index 1b554f7..8cef45d 100644
---
a/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestReversedScannerCallable.java
+++
b/hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestReversedScannerCallable.java
@@ -19,7 +19,6 @@ package org.apache.hadoop.hbase.client;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseClassTestRule;
-import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.HRegionLocation;
import org.apache.hadoop.hbase.RegionLocations;
import org.apache.hadoop.hbase.ServerName;
diff --git
a/hbase-client/src/test/java/org/apache/hadoop/hbase/filter/TestComparators.java
b/hbase-client/src/test/java/org/apache/hadoop/hbase/filter/TestComparators.java
index ac17cba..7a4f970 100644
---
a/hbase-client/src/test/java/org/apache/hadoop/hbase/filter/TestComparators.java
+++
b/hbase-client/src/test/java/org/apache/hadoop/hbase/filter/TestComparators.java
@@ -23,7 +23,6 @@ import static org.junit.Assert.assertTrue;
import java.nio.ByteBuffer;
import org.apache.hadoop.hbase.ByteBufferKeyValue;
import org.apache.hadoop.hbase.Cell;
-import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.PrivateCellUtil;
diff --git
a/hbase-common/src/test/java/org/apache/hadoop/hbase/HBaseClassTestRuleChecker.java
b/hbase-common/src/test/java/org/apache/hadoop/hbase/HBaseClassTestRuleChecker.java
index c374903..708f37c 100644
---
a/hbase-common/src/test/java/org/apache/hadoop/hbase/HBaseClassTestRuleChecker.java
+++
b/hbase-common/src/test/java/org/apache/hadoop/hbase/HBaseClassTestRuleChecker.java
@@ -22,7 +22,6 @@ import static org.junit.Assert.fail;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
-import java.util.concurrent.TimeUnit;
import org.apache.hadoop.hbase.testclassification.IntegrationTests;
import org.apache.yetus.audience.InterfaceAudience;
diff --git
a/hbase-common/src/test/java/org/apache/hadoop/hbase/TestTimeout.java
b/hbase-common/src/test/java/org/apache/hadoop/hbase/TestTimeout.java
index d547ddb..59420eb 100644
--- a/hbase-common/src/test/java/org/apache/hadoop/hbase/TestTimeout.java
+++ b/hbase-common/src/test/java/org/apache/hadoop/hbase/TestTimeout.java
@@ -18,7 +18,6 @@
package org.apache.hadoop.hbase;
import org.apache.hadoop.hbase.testclassification.SmallTests;
-import org.apache.hadoop.hbase.util.Threads;
import org.junit.ClassRule;
import org.junit.Ignore;
import org.junit.Test;
diff --git
a/hbase-common/src/test/java/org/apache/hadoop/hbase/net/TestAddress.java
b/hbase-common/src/test/java/org/apache/hadoop/hbase/net/TestAddress.java
index 22c7940..340f864 100644
--- a/hbase-common/src/test/java/org/apache/hadoop/hbase/net/TestAddress.java
+++ b/hbase-common/src/test/java/org/apache/hadoop/hbase/net/TestAddress.java
@@ -21,7 +21,6 @@ package org.apache.hadoop.hbase.net;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.testclassification.MiscTests;
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;
diff --git
a/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestRegionReplicaPerf.java
b/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestRegionReplicaPerf.java
index d1f466e..1ff74c4 100644
---
a/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestRegionReplicaPerf.java
+++
b/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestRegionReplicaPerf.java
@@ -18,9 +18,21 @@
*/
package org.apache.hadoop.hbase;
-import org.apache.hbase.thirdparty.com.google.common.base.MoreObjects;
-import org.apache.hbase.thirdparty.com.google.common.collect.Sets;
+import static java.lang.String.format;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
import com.codahale.metrics.Histogram;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import java.util.Set;
+import java.util.concurrent.Callable;
+
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.chaos.actions.MoveRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.RestartRandomRsExceptMetaAction;
@@ -31,7 +43,6 @@ import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.ipc.RpcClient;
import org.apache.hadoop.hbase.regionserver.DisabledRegionSplitPolicy;
import org.apache.hadoop.hbase.testclassification.IntegrationTests;
-import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.YammerHistogramUtils;
import org.apache.hadoop.mapreduce.Counters;
import org.apache.hadoop.mapreduce.Job;
@@ -40,16 +51,10 @@ import org.junit.experimental.categories.Category;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import org.apache.hbase.thirdparty.com.google.common.base.MoreObjects;
+import org.apache.hbase.thirdparty.com.google.common.collect.Sets;
import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;
-import java.util.*;
-import java.util.concurrent.Callable;
-
-import static java.lang.String.format;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
-
/**
* Test for comparing the performance impact of region replicas. Uses
* components of {@link PerformanceEvaluation}. Does not run from
diff --git
a/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/MobNoKillMonkeyFactory.java
b/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/MobNoKillMonkeyFactory.java
index ba7f67f..6399378 100644
---
a/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/MobNoKillMonkeyFactory.java
+++
b/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/MobNoKillMonkeyFactory.java
@@ -17,7 +17,24 @@
*/
package org.apache.hadoop.hbase.chaos.factories;
-import org.apache.hadoop.hbase.chaos.actions.*;
+import org.apache.hadoop.hbase.chaos.actions.Action;
+import org.apache.hadoop.hbase.chaos.actions.AddColumnAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeBloomFilterAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeCompressionAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeEncodingAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeVersionsAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactMobAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactTableAction;
+import org.apache.hadoop.hbase.chaos.actions.DumpClusterStatusAction;
+import org.apache.hadoop.hbase.chaos.actions.FlushRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.FlushTableAction;
+import
org.apache.hadoop.hbase.chaos.actions.MergeRandomAdjacentRegionsOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.MoveRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.MoveRegionsOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.RemoveColumnAction;
+import org.apache.hadoop.hbase.chaos.actions.SnapshotTableAction;
+import org.apache.hadoop.hbase.chaos.actions.SplitRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
import org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy;
diff --git
a/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/MobSlowDeterministicMonkeyFactory.java
b/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/MobSlowDeterministicMonkeyFactory.java
index 8d08bdb..b875033 100644
---
a/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/MobSlowDeterministicMonkeyFactory.java
+++
b/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/MobSlowDeterministicMonkeyFactory.java
@@ -18,7 +18,29 @@
package org.apache.hadoop.hbase.chaos.factories;
-import org.apache.hadoop.hbase.chaos.actions.*;
+import org.apache.hadoop.hbase.chaos.actions.Action;
+import org.apache.hadoop.hbase.chaos.actions.AddColumnAction;
+import org.apache.hadoop.hbase.chaos.actions.BatchRestartRsAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeBloomFilterAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeCompressionAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeEncodingAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeVersionsAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactMobAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactTableAction;
+import org.apache.hadoop.hbase.chaos.actions.DumpClusterStatusAction;
+import org.apache.hadoop.hbase.chaos.actions.FlushRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.FlushTableAction;
+import
org.apache.hadoop.hbase.chaos.actions.MergeRandomAdjacentRegionsOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.MoveRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.MoveRegionsOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.RemoveColumnAction;
+import org.apache.hadoop.hbase.chaos.actions.RestartActiveMasterAction;
+import org.apache.hadoop.hbase.chaos.actions.RestartRandomRsAction;
+import org.apache.hadoop.hbase.chaos.actions.RestartRsHoldingMetaAction;
+import org.apache.hadoop.hbase.chaos.actions.RollingBatchRestartRsAction;
+import org.apache.hadoop.hbase.chaos.actions.SnapshotTableAction;
+import org.apache.hadoop.hbase.chaos.actions.SplitRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
import org.apache.hadoop.hbase.chaos.policies.CompositeSequentialPolicy;
diff --git
a/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/SlowDeterministicMonkeyFactory.java
b/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/SlowDeterministicMonkeyFactory.java
index 093df2a..c97a565 100644
---
a/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/SlowDeterministicMonkeyFactory.java
+++
b/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/SlowDeterministicMonkeyFactory.java
@@ -18,7 +18,31 @@
package org.apache.hadoop.hbase.chaos.factories;
-import org.apache.hadoop.hbase.chaos.actions.*;
+import org.apache.hadoop.hbase.chaos.actions.Action;
+import org.apache.hadoop.hbase.chaos.actions.AddColumnAction;
+import org.apache.hadoop.hbase.chaos.actions.BatchRestartRsAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeBloomFilterAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeCompressionAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeEncodingAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeSplitPolicyAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeVersionsAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactTableAction;
+import org.apache.hadoop.hbase.chaos.actions.DecreaseMaxHFileSizeAction;
+import org.apache.hadoop.hbase.chaos.actions.DumpClusterStatusAction;
+import org.apache.hadoop.hbase.chaos.actions.FlushRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.FlushTableAction;
+import
org.apache.hadoop.hbase.chaos.actions.MergeRandomAdjacentRegionsOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.MoveRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.MoveRegionsOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.RemoveColumnAction;
+import org.apache.hadoop.hbase.chaos.actions.RestartActiveMasterAction;
+import org.apache.hadoop.hbase.chaos.actions.RestartRandomRsAction;
+import org.apache.hadoop.hbase.chaos.actions.RestartRsHoldingMetaAction;
+import org.apache.hadoop.hbase.chaos.actions.RollingBatchRestartRsAction;
+import org.apache.hadoop.hbase.chaos.actions.SnapshotTableAction;
+import org.apache.hadoop.hbase.chaos.actions.SplitAllRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.SplitRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
import org.apache.hadoop.hbase.chaos.policies.CompositeSequentialPolicy;
diff --git
a/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/StressAssignmentManagerMonkeyFactory.java
b/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/StressAssignmentManagerMonkeyFactory.java
index 03471ab..c150135 100644
---
a/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/StressAssignmentManagerMonkeyFactory.java
+++
b/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/StressAssignmentManagerMonkeyFactory.java
@@ -17,7 +17,25 @@
*/
package org.apache.hadoop.hbase.chaos.factories;
-import org.apache.hadoop.hbase.chaos.actions.*;
+import org.apache.hadoop.hbase.chaos.actions.Action;
+import org.apache.hadoop.hbase.chaos.actions.AddColumnAction;
+import org.apache.hadoop.hbase.chaos.actions.BatchRestartRsAction;
+import org.apache.hadoop.hbase.chaos.actions.ChangeSplitPolicyAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.CompactTableAction;
+import org.apache.hadoop.hbase.chaos.actions.DecreaseMaxHFileSizeAction;
+import org.apache.hadoop.hbase.chaos.actions.DumpClusterStatusAction;
+import org.apache.hadoop.hbase.chaos.actions.FlushRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.FlushTableAction;
+import
org.apache.hadoop.hbase.chaos.actions.MergeRandomAdjacentRegionsOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.MoveRandomRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.MoveRegionsOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.RemoveColumnAction;
+import org.apache.hadoop.hbase.chaos.actions.RestartRandomRsAction;
+import org.apache.hadoop.hbase.chaos.actions.RestartRsHoldingMetaAction;
+import org.apache.hadoop.hbase.chaos.actions.RollingBatchRestartRsAction;
+import org.apache.hadoop.hbase.chaos.actions.SplitAllRegionOfTableAction;
+import org.apache.hadoop.hbase.chaos.actions.SplitRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
import org.apache.hadoop.hbase.chaos.policies.CompositeSequentialPolicy;
diff --git
a/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapred/TableSnapshotInputFormat.java
b/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapred/TableSnapshotInputFormat.java
index 50c26db..1bacb89 100644
---
a/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapred/TableSnapshotInputFormat.java
+++
b/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapred/TableSnapshotInputFormat.java
@@ -32,7 +32,6 @@ import org.apache.hadoop.mapred.InputSplit;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.RecordReader;
import org.apache.hadoop.mapred.Reporter;
-import org.apache.hadoop.mapreduce.Job;
import java.io.DataInput;
import java.io.DataOutput;
diff --git
a/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/CellCounter.java
b/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/CellCounter.java
index ff0f01c..cc3d554 100644
---
a/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/CellCounter.java
+++
b/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/CellCounter.java
@@ -33,7 +33,6 @@ import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.Scan;
-import org.apache.hadoop.hbase.filter.CompareFilter;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.PrefixFilter;
import org.apache.hadoop.hbase.filter.RegexStringComparator;
diff --git
a/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/ExportUtils.java
b/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/ExportUtils.java
index f164771..dfa3d31 100644
---
a/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/ExportUtils.java
+++
b/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/ExportUtils.java
@@ -31,7 +31,6 @@ import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.hbase.client.Scan;
-import org.apache.hadoop.hbase.filter.CompareFilter;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.IncompatibleFilterException;
import org.apache.hadoop.hbase.filter.PrefixFilter;
diff --git
a/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/TableInputFormatBase.java
b/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/TableInputFormatBase.java
index d8031d9..53c108b 100644
---
a/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/TableInputFormatBase.java
+++
b/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/TableInputFormatBase.java
@@ -26,7 +26,6 @@ import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
-import java.util.Map;
import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
diff --git
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapred/TestTableInputFormat.java
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapred/TestTableInputFormat.java
index 91bf3ef..64fe7a1 100644
---
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapred/TestTableInputFormat.java
+++
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapred/TestTableInputFormat.java
@@ -31,9 +31,13 @@ import java.io.IOException;
import java.util.Arrays;
import java.util.Map;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.Cell;
+import org.apache.hadoop.hbase.CompareOperator;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseConfiguration;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.NotServingRegionException;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Put;
@@ -41,7 +45,6 @@ import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.Table;
-import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.RegexStringComparator;
import org.apache.hadoop.hbase.filter.RowFilter;
diff --git
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestCellCounter.java
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestCellCounter.java
index b15116a..7930c9f 100644
---
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestCellCounter.java
+++
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestCellCounter.java
@@ -21,7 +21,10 @@ import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
-import java.io.*;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.PrintStream;
import org.apache.commons.io.IOUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileUtil;
diff --git
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestSimpleTotalOrderPartitioner.java
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestSimpleTotalOrderPartitioner.java
index 9a91013..b28d8d9 100644
---
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestSimpleTotalOrderPartitioner.java
+++
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestSimpleTotalOrderPartitioner.java
@@ -20,8 +20,9 @@ package org.apache.hadoop.hbase.mapreduce;
import static org.junit.Assert.assertEquals;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
import org.apache.hadoop.hbase.testclassification.MapReduceTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
diff --git
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestTableInputFormat.java
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestTableInputFormat.java
index b7ea5d0..8e085be 100644
---
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestTableInputFormat.java
+++
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestTableInputFormat.java
@@ -30,8 +30,13 @@ import static org.mockito.Mockito.spy;
import java.io.IOException;
import java.util.Arrays;
import java.util.Map;
-import org.apache.hadoop.hbase.*;
+import org.apache.hadoop.hbase.Cell;
+import org.apache.hadoop.hbase.CompareOperator;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseConfiguration;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.NotServingRegionException;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Put;
@@ -39,7 +44,6 @@ import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.Table;
-import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.RegexStringComparator;
import org.apache.hadoop.hbase.filter.RowFilter;
diff --git
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/snapshot/TestMobExportSnapshot.java
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/snapshot/TestMobExportSnapshot.java
index ed605b9..66c81da 100644
---
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/snapshot/TestMobExportSnapshot.java
+++
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/snapshot/TestMobExportSnapshot.java
@@ -26,7 +26,6 @@ import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.VerySlowRegionServerTests;
import org.junit.BeforeClass;
import org.junit.ClassRule;
-import org.junit.Ignore;
import org.junit.experimental.categories.Category;
/**
diff --git
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/snapshot/TestMobSecureExportSnapshot.java
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/snapshot/TestMobSecureExportSnapshot.java
index b4e0afd..9d9c640 100644
---
a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/snapshot/TestMobSecureExportSnapshot.java
+++
b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/snapshot/TestMobSecureExportSnapshot.java
@@ -26,7 +26,6 @@ import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.VerySlowRegionServerTests;
import org.junit.BeforeClass;
import org.junit.ClassRule;
-import org.junit.Ignore;
import org.junit.experimental.categories.Category;
/**
diff --git
a/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/TestProcedureSchedulerConcurrency.java
b/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/TestProcedureSchedulerConcurrency.java
index d3c0ed4..93c9ad1 100644
---
a/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/TestProcedureSchedulerConcurrency.java
+++
b/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/TestProcedureSchedulerConcurrency.java
@@ -17,10 +17,6 @@
*/
package org.apache.hadoop.hbase.procedure2;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
import java.io.IOException;
import java.util.concurrent.ConcurrentSkipListSet;
import java.util.concurrent.atomic.AtomicInteger;
diff --git
a/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALPerformanceEvaluation.java
b/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALPerformanceEvaluation.java
index f37ccb3..d2f94d3 100644
---
a/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALPerformanceEvaluation.java
+++
b/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALPerformanceEvaluation.java
@@ -27,12 +27,14 @@ import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
-import org.apache.hadoop.fs.*;
-import org.apache.hadoop.conf.*;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FSDataOutputStream;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseCommonTestingUtility;
import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;
-import org.apache.hadoop.hbase.procedure2.util.*;
+import org.apache.hadoop.hbase.procedure2.util.StringUtils;
import org.apache.hadoop.hbase.util.AbstractHBaseTool;
import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;
diff --git
a/hbase-replication/src/main/java/org/apache/hadoop/hbase/replication/ReplicationTableBase.java
b/hbase-replication/src/main/java/org/apache/hadoop/hbase/replication/ReplicationTableBase.java
index 0d8427c..d785039 100644
---
a/hbase-replication/src/main/java/org/apache/hadoop/hbase/replication/ReplicationTableBase.java
+++
b/hbase-replication/src/main/java/org/apache/hadoop/hbase/replication/ReplicationTableBase.java
@@ -37,7 +37,6 @@ import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.Table;
-import org.apache.hadoop.hbase.filter.CompareFilter;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.util.Bytes;
diff --git
a/hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/filter/RestCsrfPreventionFilter.java
b/hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/filter/RestCsrfPreventionFilter.java
index 31a437a..51b454b 100644
---
a/hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/filter/RestCsrfPreventionFilter.java
+++
b/hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/filter/RestCsrfPreventionFilter.java
@@ -35,7 +35,6 @@ import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.yetus.audience.InterfaceAudience;
-import org.apache.yetus.audience.InterfaceStability;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.conf.Configuration;
diff --git
a/hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/RowResourceBase.java
b/hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/RowResourceBase.java
index 347b68b..5ab45f8 100644
--- a/hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/RowResourceBase.java
+++ b/hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/RowResourceBase.java
@@ -22,8 +22,9 @@ import static org.junit.Assert.assertEquals;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.StringWriter;
-import java.util.*;
+import java.util.HashMap;
+import java.util.Map;
import javax.ws.rs.core.MediaType;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
diff --git
a/hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/TestSecureRESTServer.java
b/hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/TestSecureRESTServer.java
index c954658..49ff867 100644
---
a/hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/TestSecureRESTServer.java
+++
b/hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/TestSecureRESTServer.java
@@ -33,7 +33,6 @@ import javax.ws.rs.core.MediaType;
import org.apache.commons.io.FileUtils;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.MiniHBaseCluster;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/client/ClientSideRegionScanner.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/client/ClientSideRegionScanner.java
index 7a1a578..820e44d 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/client/ClientSideRegionScanner.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/client/ClientSideRegionScanner.java
@@ -26,7 +26,6 @@ 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.PrivateCellUtil;
import org.apache.hadoop.hbase.client.metrics.ScanMetrics;
import org.apache.hadoop.hbase.regionserver.HRegion;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/EndpointObserver.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/EndpointObserver.java
index 096247c..0fa5ea9 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/EndpointObserver.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/EndpointObserver.java
@@ -16,18 +16,16 @@
* specific language governing permissions and limitations
* under the License.
*/
-
package org.apache.hadoop.hbase.coprocessor;
+import com.google.protobuf.Message;
+import com.google.protobuf.Service;
+
import java.io.IOException;
+import org.apache.hadoop.hbase.HBaseInterfaceAudience;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.yetus.audience.InterfaceStability;
-import org.apache.hadoop.hbase.Coprocessor;
-import org.apache.hadoop.hbase.HBaseInterfaceAudience;
-
-import com.google.protobuf.Message;
-import com.google.protobuf.Service;
/**
* Coprocessors implement this interface to observe and mediate endpoint
invocations
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/RegionServerObserver.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/RegionServerObserver.java
index c1af3fb..b5552bf 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/RegionServerObserver.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/RegionServerObserver.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hbase.coprocessor;
import java.io.IOException;
-import org.apache.hadoop.hbase.Coprocessor;
import org.apache.hadoop.hbase.HBaseInterfaceAudience;
import org.apache.hadoop.hbase.replication.ReplicationEndpoint;
import org.apache.yetus.audience.InterfaceAudience;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java
index f30d488..2e112c1 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java
@@ -30,7 +30,6 @@ 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.HConstants;
import org.apache.hadoop.hbase.PrivateCellUtil;
import org.apache.hadoop.hbase.KeyValue;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.java
index 28a8ecc..7187a71 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/RWQueueRpcExecutor.java
@@ -32,7 +32,6 @@ import org.slf4j.LoggerFactory;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.Action;
import
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiRequest;
import
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateRequest;
-import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
import
org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos;
import
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.RegionAction;
import
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanRequest;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
index 326cd88..6ac78f6 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
@@ -183,7 +183,6 @@ import org.apache.hadoop.hbase.util.HFileArchiveUtil;
import org.apache.hadoop.hbase.util.HasThread;
import org.apache.hadoop.hbase.util.IdLock;
import org.apache.hadoop.hbase.util.ModifyRegionUtils;
-import org.apache.hadoop.hbase.util.Pair;
import org.apache.hadoop.hbase.util.RetryCounter;
import org.apache.hadoop.hbase.util.RetryCounterFactory;
import org.apache.hadoop.hbase.util.Threads;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterServices.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterServices.java
index 815f9f0..ee5f1e9 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterServices.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterServices.java
@@ -21,7 +21,6 @@ package org.apache.hadoop.hbase.master;
import java.io.IOException;
import java.util.List;
-import org.apache.hadoop.hbase.HBaseIOException;
import org.apache.hadoop.hbase.Server;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.TableDescriptors;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/RackManager.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/RackManager.java
index 447c6a6..3ed2006 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/RackManager.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/RackManager.java
@@ -18,7 +18,6 @@
package org.apache.hadoop.hbase.master;
import java.util.ArrayList;
-import java.util.Arrays;
import java.util.Collections;
import java.util.List;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobCacheConfig.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobCacheConfig.java
index 2305eba..b6a9339 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobCacheConfig.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/mob/MobCacheConfig.java
@@ -19,7 +19,6 @@
package org.apache.hadoop.hbase.mob;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
import org.apache.hadoop.hbase.io.hfile.CacheConfig;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/MasterProcedureManager.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/MasterProcedureManager.java
index b705157..44bb506 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/MasterProcedureManager.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/MasterProcedureManager.java
@@ -22,7 +22,6 @@ import java.io.IOException;
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.hbase.security.access.AccessChecker;
import org.apache.yetus.audience.InterfaceAudience;
-import org.apache.yetus.audience.InterfaceStability;
import org.apache.hadoop.hbase.Stoppable;
import org.apache.hadoop.hbase.master.MasterServices;
import org.apache.hadoop.hbase.master.MetricsMaster;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/flush/MasterFlushTableProcedureManager.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/flush/MasterFlushTableProcedureManager.java
index 381e526..fa9712b 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/flush/MasterFlushTableProcedureManager.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/procedure/flush/MasterFlushTableProcedureManager.java
@@ -43,7 +43,6 @@ import
org.apache.hadoop.hbase.procedure.ProcedureCoordinatorRpcs;
import org.apache.hadoop.hbase.procedure.ZKProcedureCoordinator;
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.hbase.security.access.AccessChecker;
-import org.apache.hadoop.hbase.security.access.Permission;
import org.apache.hadoop.hbase.util.Pair;
import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;
import org.apache.yetus.audience.InterfaceAudience;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/NoopQuotaLimiter.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/NoopQuotaLimiter.java
index 3cca955..ee7c980 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/NoopQuotaLimiter.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/NoopQuotaLimiter.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hbase.quotas;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.yetus.audience.InterfaceStability;
-import org.apache.hadoop.hbase.quotas.OperationQuota.OperationType;
/**
* Noop quota limiter returned when no limiter is associated to the user/table
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/QuotaLimiter.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/QuotaLimiter.java
index 7cb29b3..e78ff4b 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/QuotaLimiter.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/QuotaLimiter.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hbase.quotas;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.yetus.audience.InterfaceStability;
-import org.apache.hadoop.hbase.quotas.OperationQuota.OperationType;
/**
* Internal interface used to interact with the user/table quota.
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ConstantSizeRegionSplitPolicy.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ConstantSizeRegionSplitPolicy.java
index 189ccbc..ebb0b2a 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ConstantSizeRegionSplitPolicy.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ConstantSizeRegionSplitPolicy.java
@@ -24,7 +24,6 @@ import java.util.Random;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseInterfaceAudience;
import org.apache.hadoop.hbase.HConstants;
-import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.hadoop.hbase.client.TableDescriptor;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/FlushPolicyFactory.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/FlushPolicyFactory.java
index 59f925f..97df8ef 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/FlushPolicyFactory.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/FlushPolicyFactory.java
@@ -21,7 +21,6 @@ import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseInterfaceAudience;
-import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScannerIdGenerator.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScannerIdGenerator.java
index ce5be88..81975c5 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScannerIdGenerator.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ScannerIdGenerator.java
@@ -21,13 +21,9 @@ package org.apache.hadoop.hbase.regionserver;
import org.apache.hbase.thirdparty.com.google.common.hash.Hashing;
import java.util.concurrent.atomic.AtomicInteger;
-import java.util.concurrent.atomic.AtomicLong;
-import java.nio.charset.Charset;
-import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.ServerName;
import org.apache.yetus.audience.InterfaceAudience;
-import org.apache.hadoop.hbase.util.Bytes;
/**
* Generate a new style scanner id to prevent collision with previous started
server or other RSs.
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFlusher.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFlusher.java
index 442d47d..07cb7a2 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFlusher.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFlusher.java
@@ -22,7 +22,6 @@ import java.io.IOException;
import java.io.InterruptedIOException;
import java.util.ArrayList;
import java.util.List;
-import java.util.OptionalInt;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.java
index d995fc6..1817564 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.java
@@ -26,7 +26,6 @@ import java.io.IOException;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.hadoop.hbase.Cell;
-import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.PrivateCellUtil;
import org.apache.hadoop.hbase.io.TimeRange;
import org.apache.yetus.audience.InterfaceAudience;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/MajorCompactionScanQueryMatcher.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/MajorCompactionScanQueryMatcher.java
index 89b6287..2f02d77 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/MajorCompactionScanQueryMatcher.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/MajorCompactionScanQueryMatcher.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hbase.regionserver.querymatcher;
import java.io.IOException;
import org.apache.hadoop.hbase.Cell;
-import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.PrivateCellUtil;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.hadoop.hbase.regionserver.ScanInfo;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/MinorCompactionScanQueryMatcher.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/MinorCompactionScanQueryMatcher.java
index 2d60ace..b3815da 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/MinorCompactionScanQueryMatcher.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/MinorCompactionScanQueryMatcher.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hbase.regionserver.querymatcher;
import java.io.IOException;
import org.apache.hadoop.hbase.Cell;
-import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.PrivateCellUtil;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.hadoop.hbase.regionserver.ScanInfo;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/NewVersionBehaviorTracker.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/NewVersionBehaviorTracker.java
index 16ac84c..3c9a541 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/NewVersionBehaviorTracker.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/NewVersionBehaviorTracker.java
@@ -34,7 +34,6 @@ import org.apache.hadoop.hbase.PrivateCellUtil;
import org.apache.hadoop.hbase.KeyValue.Type;
import org.apache.yetus.audience.InterfaceAudience;
import
org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher.MatchCode;
-import org.apache.hadoop.hbase.util.Bytes;
/**
* A tracker both implementing ColumnTracker and DeleteTracker, used for
mvcc-sensitive scanning.
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/NormalUserScanQueryMatcher.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/NormalUserScanQueryMatcher.java
index 05413b6..c755ff5 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/NormalUserScanQueryMatcher.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/NormalUserScanQueryMatcher.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hbase.regionserver.querymatcher;
import java.io.IOException;
import org.apache.hadoop.hbase.Cell;
-import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.PrivateCellUtil;
import org.apache.hadoop.hbase.KeepDeletedCells;
import org.apache.yetus.audience.InterfaceAudience;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/StripeCompactionScanQueryMatcher.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/StripeCompactionScanQueryMatcher.java
index ab9aca7..763735e 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/StripeCompactionScanQueryMatcher.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/StripeCompactionScanQueryMatcher.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hbase.regionserver.querymatcher;
import java.io.IOException;
import org.apache.hadoop.hbase.Cell;
-import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.PrivateCellUtil;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.hadoop.hbase.regionserver.ScanInfo;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationObserver.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationObserver.java
index ec478d5..b7e437f 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationObserver.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationObserver.java
@@ -25,22 +25,19 @@ import java.util.Optional;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.coprocessor.CoreCoprocessor;
import org.apache.hadoop.hbase.coprocessor.HasRegionServerServices;
-import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;
-import org.apache.hadoop.hbase.regionserver.RegionServerServices;
-import org.apache.yetus.audience.InterfaceAudience;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.apache.hadoop.hbase.HBaseInterfaceAudience;
-import org.apache.hadoop.hbase.HConstants;
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.regionserver.HRegionServer;
+import org.apache.hadoop.hbase.regionserver.RegionServerServices;
import org.apache.hadoop.hbase.util.Pair;
-
-import javax.validation.constraints.Null;
+import org.apache.yetus.audience.InterfaceAudience;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
* An Observer to add HFile References to replication queue.
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/WALEntryStream.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/WALEntryStream.java
index fe708ce..77f3f20 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/WALEntryStream.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/WALEntryStream.java
@@ -40,7 +40,6 @@ import org.apache.hadoop.hbase.util.CancelableProgressable;
import org.apache.hadoop.hbase.util.CommonFSUtils;
import org.apache.hadoop.hbase.util.FSUtils;
import org.apache.hadoop.hbase.util.LeaseNotRecoveredException;
-import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;
import org.apache.hadoop.hbase.wal.WAL.Entry;
import org.apache.hadoop.hbase.wal.WAL.Reader;
import org.apache.hadoop.hbase.wal.WALFactory;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/util/CompressionTest.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/util/CompressionTest.java
index dcdd12e..fbaab3d 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/util/CompressionTest.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/util/CompressionTest.java
@@ -31,7 +31,6 @@ 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.CellComparatorImpl;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.DoNotRetryIOException;
import org.apache.hadoop.hbase.HBaseConfiguration;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/util/RowBloomContext.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/util/RowBloomContext.java
index f1c9ad3..ce9c6946 100644
---
a/hbase-server/src/main/java/org/apache/hadoop/hbase/util/RowBloomContext.java
+++
b/hbase-server/src/main/java/org/apache/hadoop/hbase/util/RowBloomContext.java
@@ -23,7 +23,6 @@ import java.io.IOException;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellComparator;
-import org.apache.hadoop.hbase.CellComparatorImpl;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.io.hfile.HFile.Writer;
import org.apache.yetus.audience.InterfaceAudience;
diff --git
a/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/FSHLogProvider.java
b/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/FSHLogProvider.java
index efcd377..98a77c0 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/FSHLogProvider.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/FSHLogProvider.java
@@ -27,7 +27,6 @@ import
org.apache.hadoop.hbase.regionserver.wal.ProtobufLogWriter;
import org.apache.hadoop.hbase.regionserver.wal.WALUtil;
import org.apache.hadoop.hbase.util.CommonFSUtils;
import
org.apache.hadoop.hbase.util.CommonFSUtils.StreamLacksCapabilityException;
-import org.apache.hadoop.hbase.util.FSUtils;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.yetus.audience.InterfaceStability;
import org.slf4j.Logger;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/TestClientClusterStatus.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/TestClientClusterStatus.java
index 392ff6e..6cd1d76 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/TestClientClusterStatus.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/TestClientClusterStatus.java
@@ -37,7 +37,6 @@ import org.apache.hadoop.hbase.regionserver.HRegionServer;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.JVMClusterUtil.MasterThread;
import org.apache.hadoop.hbase.util.JVMClusterUtil.RegionServerThread;
-import org.apache.hadoop.hbase.util.Threads;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/TestClusterPortAssignment.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/TestClusterPortAssignment.java
index 6954101..3586ebd 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/TestClusterPortAssignment.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/TestClusterPortAssignment.java
@@ -22,7 +22,6 @@ import static org.junit.Assert.assertTrue;
import java.net.BindException;
-import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.junit.ClassRule;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/TestIOFencing.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/TestIOFencing.java
index 2df484a..75ea934 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/TestIOFencing.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/TestIOFencing.java
@@ -41,7 +41,6 @@ import org.apache.hadoop.hbase.regionserver.HStore;
import org.apache.hadoop.hbase.regionserver.HStoreFile;
import org.apache.hadoop.hbase.regionserver.Region;
import org.apache.hadoop.hbase.regionserver.RegionServerServices;
-import org.apache.hadoop.hbase.regionserver.Store;
import org.apache.hadoop.hbase.regionserver.compactions.CompactionContext;
import org.apache.hadoop.hbase.regionserver.throttle.ThroughputController;
import org.apache.hadoop.hbase.regionserver.wal.WALUtil;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/TestJMXConnectorServer.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/TestJMXConnectorServer.java
index 4d8c015..3a971aa 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/TestJMXConnectorServer.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/TestJMXConnectorServer.java
@@ -28,11 +28,9 @@ import
org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;
import org.apache.hadoop.hbase.coprocessor.ObserverContext;
import org.apache.hadoop.hbase.coprocessor.RegionServerCoprocessorEnvironment;
import org.apache.hadoop.hbase.security.AccessDeniedException;
-import org.apache.hadoop.hbase.security.access.AccessControlLists;
import org.apache.hadoop.hbase.security.access.AccessController;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.testclassification.MiscTests;
-import org.apache.hadoop.hbase.util.Threads;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/backup/TestHFileArchiving.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/backup/TestHFileArchiving.java
index 578724f..20dd184 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/backup/TestHFileArchiving.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/backup/TestHFileArchiving.java
@@ -30,15 +30,17 @@ import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.PathFilter;
-import org.apache.hadoop.hbase.*;
+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.Stoppable;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.master.cleaner.HFileCleaner;
-import org.apache.hadoop.hbase.regionserver.CompactingMemStore;
import org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.HRegionServer;
-import org.apache.hadoop.hbase.regionserver.Region;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.testclassification.MiscTests;
import org.apache.hadoop.hbase.util.Bytes;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/HConnectionTestingUtility.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/HConnectionTestingUtility.java
index 0f896b3..380ab8c 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/HConnectionTestingUtility.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/HConnectionTestingUtility.java
@@ -22,22 +22,22 @@ import java.util.Optional;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.RegionLocations;
-import org.apache.hadoop.hbase.TableName;
-import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.HRegionLocation;
+import org.apache.hadoop.hbase.RegionLocations;
import org.apache.hadoop.hbase.ServerName;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.ZooKeeperConnectionException;
-import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;
-import org.apache.hadoop.hbase.coprocessor.RegionObserver;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;
-import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;
-import org.apache.hadoop.hbase.util.Threads;
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.ipc.RpcControllerFactory;
+import org.apache.hadoop.hbase.util.Threads;
import org.mockito.Mockito;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;
+
/**
* {@link ClusterConnection} testing utility.
*/
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncNamespaceAdminApi.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncNamespaceAdminApi.java
index f74b095..9cbed91 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncNamespaceAdminApi.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncNamespaceAdminApi.java
@@ -29,7 +29,6 @@ import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HTableDescriptor;
-import org.apache.hadoop.hbase.MiniHBaseCluster;
import org.apache.hadoop.hbase.NamespaceDescriptor;
import org.apache.hadoop.hbase.NamespaceExistException;
import org.apache.hadoop.hbase.NamespaceNotFoundException;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncTableLocateRegionForDeletedTable.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncTableLocateRegionForDeletedTable.java
index 3d5e578..eaf0397 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncTableLocateRegionForDeletedTable.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncTableLocateRegionForDeletedTable.java
@@ -18,7 +18,6 @@
package org.apache.hadoop.hbase.client;
import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
import java.io.IOException;
import org.apache.commons.io.IOUtils;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestClientPushback.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestClientPushback.java
index d6f32f5..ae959fa 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestClientPushback.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestClientPushback.java
@@ -30,8 +30,11 @@ import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.ServerName;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.backoff.ClientBackoffPolicy;
import org.apache.hadoop.hbase.client.backoff.ExponentialClientBackoffPolicy;
import org.apache.hadoop.hbase.client.backoff.ServerStatistics;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMetaCache.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMetaCache.java
index 50db5f0..3870244 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMetaCache.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMetaCache.java
@@ -27,8 +27,17 @@ import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.*;
+import org.apache.hadoop.hbase.CallQueueTooBigException;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HColumnDescriptor;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.HTableDescriptor;
+import org.apache.hadoop.hbase.MultiActionResultTooLarge;
+import org.apache.hadoop.hbase.NotServingRegionException;
+import org.apache.hadoop.hbase.RegionTooBusyException;
+import org.apache.hadoop.hbase.RetryImmediatelyException;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil;
import org.apache.hadoop.hbase.exceptions.RegionOpeningException;
import org.apache.hadoop.hbase.quotas.RpcThrottlingException;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMultipleTimestamps.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMultipleTimestamps.java
index ac6b9d1..7c9b959 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMultipleTimestamps.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMultipleTimestamps.java
@@ -17,14 +17,17 @@
*/
package org.apache.hadoop.hbase.client;
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
-import org.apache.hadoop.hbase.*;
+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.TableName;
import org.apache.hadoop.hbase.testclassification.ClientTests;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.util.Bytes;
@@ -115,7 +118,7 @@ public class TestMultipleTimestamps {
ResultScanner scanner = scan(ht, FAMILY, scanRows, scanColumns,
scanTimestamps, scanMaxVersions);
- Cell [] kvs;
+ Cell[] kvs;
kvs = scanner.next().rawCells();
assertEquals(2, kvs.length);
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestPutWithDelete.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestPutWithDelete.java
index 114fb30..e1ef472 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestPutWithDelete.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestPutWithDelete.java
@@ -19,8 +19,11 @@ package org.apache.hadoop.hbase.client;
import static org.junit.Assert.assertTrue;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.KeyValue;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.testclassification.ClientTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestScannerTimeout.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestScannerTimeout.java
index 45da2c6..4e855fe 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestScannerTimeout.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestScannerTimeout.java
@@ -18,7 +18,6 @@
package org.apache.hadoop.hbase.client;
import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseClassTestRule;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestTimestampsFilter.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestTimestampsFilter.java
index 8fc03ae..d6a0666 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestTimestampsFilter.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestTimestampsFilter.java
@@ -17,14 +17,18 @@
*/
package org.apache.hadoop.hbase.client;
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
-import org.apache.hadoop.hbase.*;
+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.TableName;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.TimestampsFilter;
import org.apache.hadoop.hbase.testclassification.ClientTests;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/constraint/TestConstraint.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/constraint/TestConstraint.java
index abe2888..7e8ba65 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/constraint/TestConstraint.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/constraint/TestConstraint.java
@@ -17,19 +17,16 @@
*/
package org.apache.hadoop.hbase.constraint;
-import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
-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.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Put;
-import org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;
import org.apache.hadoop.hbase.testclassification.MediumTests;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestCoprocessorStop.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestCoprocessorStop.java
index 00ca451..2fc4dea 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestCoprocessorStop.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestCoprocessorStop.java
@@ -23,8 +23,10 @@ import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.*;
+import org.apache.hadoop.hbase.CoprocessorEnvironment;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.MiniHBaseCluster;
import org.apache.hadoop.hbase.testclassification.CoprocessorTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.junit.AfterClass;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestColumnRangeFilter.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestColumnRangeFilter.java
index 60ce95d..043c8ea 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestColumnRangeFilter.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestColumnRangeFilter.java
@@ -17,7 +17,7 @@
*/
package org.apache.hadoop.hbase.filter;
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.ArrayList;
@@ -26,8 +26,12 @@ import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
-import org.apache.hadoop.hbase.*;
+import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.KeyValue;
+import org.apache.hadoop.hbase.KeyValueTestUtil;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Durability;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestDependentColumnFilter.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestDependentColumnFilter.java
index 3636dd3..dc8a423 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestDependentColumnFilter.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestDependentColumnFilter.java
@@ -37,7 +37,6 @@ import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Scan;
-import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.Filter.ReturnCode;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.InternalScanner;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterListOnMini.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterListOnMini.java
index 4266522..3b52db6 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterListOnMini.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterListOnMini.java
@@ -20,7 +20,11 @@ package org.apache.hadoop.hbase.filter;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.TableName;
-import org.apache.hadoop.hbase.client.*;
+import org.apache.hadoop.hbase.client.Put;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.client.ResultScanner;
+import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.filter.FilterList.Operator;
import org.apache.hadoop.hbase.testclassification.FilterTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterSerialization.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterSerialization.java
index b0d876b..13819b5 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterSerialization.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterSerialization.java
@@ -25,7 +25,6 @@ import java.util.List;
import java.util.TreeSet;
import org.apache.hadoop.hbase.CompareOperator;
import org.apache.hadoop.hbase.HBaseClassTestRule;
-import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.MultiRowRangeFilter.RowRange;
import org.apache.hadoop.hbase.testclassification.FilterTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestSingleColumnValueFilter.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestSingleColumnValueFilter.java
index 05d8045..24ed51b 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestSingleColumnValueFilter.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestSingleColumnValueFilter.java
@@ -28,7 +28,6 @@ import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CompareOperator;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.KeyValue;
-import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.testclassification.FilterTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.util.Bytes;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
index 79bab0f..d5eea13 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCacheOnWrite.java
@@ -51,7 +51,6 @@ import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding;
import org.apache.hadoop.hbase.io.hfile.bucket.BucketCache;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.regionserver.HRegion;
-import org.apache.hadoop.hbase.regionserver.Region;
import org.apache.hadoop.hbase.regionserver.StoreFileWriter;
import org.apache.hadoop.hbase.testclassification.IOTests;
import org.apache.hadoop.hbase.testclassification.LargeTests;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestForceCacheImportantBlocks.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestForceCacheImportantBlocks.java
index 5612c1b..1985166 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestForceCacheImportantBlocks.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestForceCacheImportantBlocks.java
@@ -32,7 +32,6 @@ import org.apache.hadoop.hbase.io.compress.Compression;
import org.apache.hadoop.hbase.io.compress.Compression.Algorithm;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.regionserver.HRegion;
-import org.apache.hadoop.hbase.regionserver.Region;
import org.apache.hadoop.hbase.testclassification.IOTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestScannerSelectionUsingKeyRange.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestScannerSelectionUsingKeyRange.java
index d27b041..6312dc1 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestScannerSelectionUsingKeyRange.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestScannerSelectionUsingKeyRange.java
@@ -39,7 +39,6 @@ import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.InternalScanner;
-import org.apache.hadoop.hbase.regionserver.Region;
import org.apache.hadoop.hbase.testclassification.IOTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.util.Bytes;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/ipc/AbstractTestIPC.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/ipc/AbstractTestIPC.java
index eaa3d36..ac0d356 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/ipc/AbstractTestIPC.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/ipc/AbstractTestIPC.java
@@ -57,7 +57,6 @@ import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.io.compress.GzipCodec;
import org.apache.hadoop.util.StringUtils;
-import org.junit.BeforeClass;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMaster.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMaster.java
index ce04761..142fd68 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMaster.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMaster.java
@@ -25,9 +25,7 @@ import static org.junit.Assert.fail;
import java.io.IOException;
import java.util.List;
-import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
-import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseClassTestRule;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystem.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystem.java
index 107d078..032504d 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystem.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystem.java
@@ -18,14 +18,11 @@
package org.apache.hadoop.hbase.master;
import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
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.HConstants;
import org.apache.hadoop.hbase.testclassification.MasterTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.FSUtils;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystemWithWALDir.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystemWithWALDir.java
index d8f400e..cd26664 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystemWithWALDir.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFileSystemWithWALDir.java
@@ -22,7 +22,6 @@ import static org.junit.Assert.assertEquals;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
-import org.apache.hadoop.hbase.fs.HFileSystem;
import org.apache.hadoop.hbase.testclassification.MasterTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.FSUtils;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java
index e211b9c..1d2e4a8 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterMetrics.java
@@ -20,7 +20,6 @@ package org.apache.hadoop.hbase.master;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.CompatibilityFactory;
-import org.apache.hadoop.hbase.CoordinatedStateManager;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.MiniHBaseCluster;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMirroringTableStateManager.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMirroringTableStateManager.java
index d10c2b4..b6bfab9 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMirroringTableStateManager.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMirroringTableStateManager.java
@@ -32,7 +32,6 @@ import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.TableName;
import org.apache.zookeeper.KeeperException;
import org.junit.After;
-import org.junit.Assert;
import org.junit.Before;
import org.junit.ClassRule;
import org.junit.Rule;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestTableStateManager.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestTableStateManager.java
index 80b41a4..338b6b3 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestTableStateManager.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestTableStateManager.java
@@ -28,7 +28,6 @@ import org.apache.hadoop.hbase.testclassification.MasterTests;
import org.apache.hadoop.hbase.util.JVMClusterUtil;
import org.apache.hadoop.hbase.util.Threads;
import org.junit.After;
-import org.junit.Assert;
import org.junit.Before;
import org.junit.ClassRule;
import org.junit.Rule;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestUnexpectedStateException.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestUnexpectedStateException.java
index 868b93b..f67299c 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestUnexpectedStateException.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestUnexpectedStateException.java
@@ -24,7 +24,6 @@ import java.util.Iterator;
import java.util.List;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
-import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.RegionInfo;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestFavoredNodeTableImport.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestFavoredNodeTableImport.java
index b175bd7..6958ed2 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestFavoredNodeTableImport.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/balancer/TestFavoredNodeTableImport.java
@@ -19,7 +19,6 @@ package org.apache.hadoop.hbase.master.balancer;
import static
org.apache.hadoop.hbase.favored.FavoredNodeAssignmentHelper.FAVORED_NODES_NUM;
import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import java.util.List;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestDefaultMobStoreFlusher.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestDefaultMobStoreFlusher.java
index 9c2a2a4..a2d0b99 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestDefaultMobStoreFlusher.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestDefaultMobStoreFlusher.java
@@ -25,7 +25,11 @@ import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
-import org.apache.hadoop.hbase.client.*;
+import org.apache.hadoop.hbase.client.Put;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.client.ResultScanner;
+import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.AfterClass;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestExpiredMobFileCleaner.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestExpiredMobFileCleaner.java
index 7219db3..bffb062 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestExpiredMobFileCleaner.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/mob/TestExpiredMobFileCleaner.java
@@ -27,7 +27,10 @@ import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
-import org.apache.hadoop.hbase.client.*;
+import org.apache.hadoop.hbase.client.Admin;
+import org.apache.hadoop.hbase.client.BufferedMutator;
+import org.apache.hadoop.hbase.client.ConnectionFactory;
+import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.util.ToolRunner;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/namespace/TestNamespaceAuditor.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/namespace/TestNamespaceAuditor.java
index cc6c217..e7b9928 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/namespace/TestNamespaceAuditor.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/namespace/TestNamespaceAuditor.java
@@ -48,7 +48,6 @@ import org.apache.hadoop.hbase.MiniHBaseCluster;
import org.apache.hadoop.hbase.NamespaceDescriptor;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.Waiter;
-import org.apache.hadoop.hbase.Waiter.ExplainingPredicate;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.CompactionState;
import org.apache.hadoop.hbase.client.Connection;
@@ -83,8 +82,6 @@ import
org.apache.hadoop.hbase.snapshot.RestoreSnapshotException;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.FSUtils;
-import org.apache.hadoop.hbase.util.RetryCounter;
-import org.apache.hadoop.hbase.util.Threads;
import org.apache.zookeeper.KeeperException;
import org.junit.After;
import org.junit.AfterClass;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/quotas/TestNamespaceQuotaViolationStore.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/quotas/TestNamespaceQuotaViolationStore.java
index ef7af2c..9b70b2c 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/quotas/TestNamespaceQuotaViolationStore.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/quotas/TestNamespaceQuotaViolationStore.java
@@ -29,7 +29,6 @@ import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.hadoop.hbase.HBaseClassTestRule;
-import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.NamespaceDescriptor;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/DelegatingKeyValueScanner.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/DelegatingKeyValueScanner.java
index da71c46..c7fef3f 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/DelegatingKeyValueScanner.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/DelegatingKeyValueScanner.java
@@ -23,8 +23,6 @@ import java.io.IOException;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.client.Scan;
-import org.apache.hadoop.hbase.regionserver.KeyValueScanner;
-import org.apache.hadoop.hbase.regionserver.Store;
public class DelegatingKeyValueScanner implements KeyValueScanner {
protected KeyValueScanner delegate;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/OOMERegionServer.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/OOMERegionServer.java
index 7d8be2d..a527716 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/OOMERegionServer.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/OOMERegionServer.java
@@ -22,7 +22,6 @@ import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
-import org.apache.hadoop.hbase.CoordinatedStateManager;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestBlocksRead.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestBlocksRead.java
index 2cf3f8c..4ff4259 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestBlocksRead.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestBlocksRead.java
@@ -46,8 +46,11 @@ 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.util.EnvironmentEdgeManagerTestHelper;
-import org.junit.*;
+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;
@@ -61,7 +64,8 @@ public class TestBlocksRead {
HBaseClassTestRule.forClass(TestBlocksRead.class);
private static final Logger LOG =
LoggerFactory.getLogger(TestBlocksRead.class);
- @Rule public TestName testName = new TestName();
+ @Rule
+ public TestName testName = new TestName();
static final BloomType[] BLOOM_TYPE = new BloomType[] { BloomType.ROWCOL,
BloomType.ROW, BloomType.NONE };
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompactSplitThread.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompactSplitThread.java
index d58fb27..f7f0ca0 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompactSplitThread.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompactSplitThread.java
@@ -23,9 +23,13 @@ import java.util.Collection;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
-import org.apache.hadoop.hbase.client.*;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HColumnDescriptor;
+import org.apache.hadoop.hbase.HTableDescriptor;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.Connection;
+import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.util.Bytes;
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 859f069..b327668 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
@@ -26,7 +26,11 @@ import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
-import org.apache.hadoop.hbase.client.*;
+import org.apache.hadoop.hbase.client.Put;
+import org.apache.hadoop.hbase.client.Result;
+import org.apache.hadoop.hbase.client.ResultScanner;
+import org.apache.hadoop.hbase.client.Scan;
+import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.mob.MobConstants;
import org.apache.hadoop.hbase.mob.MobUtils;
import org.apache.hadoop.hbase.testclassification.MediumTests;
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 70166a0..ff082f3 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
@@ -25,7 +25,6 @@ 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;
@@ -34,13 +33,11 @@ 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.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;
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 2a89b99..2b4dbc4 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
@@ -23,8 +23,9 @@ 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.HBaseTestingUtility;
+import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.testclassification.RegionServerTests;
import org.apache.hadoop.hbase.zookeeper.MasterAddressTracker;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestQosFunction.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestQosFunction.java
index 99d140f..2a6a6e9 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestQosFunction.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestQosFunction.java
@@ -20,8 +20,10 @@ package org.apache.hadoop.hbase.regionserver;
import static org.mockito.Mockito.when;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseConfiguration;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.QosTestHelper;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.testclassification.RegionServerTests;
import org.junit.Before;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java
index 7190d84..bc1991f 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionOpen.java
@@ -18,7 +18,6 @@
package org.apache.hadoop.hbase.regionserver;
import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.IOException;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionServerAbort.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionServerAbort.java
index d5cbad0..449b19e 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionServerAbort.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionServerAbort.java
@@ -53,7 +53,6 @@ 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.util.JVMClusterUtil;
-import org.apache.hadoop.hbase.util.Threads;
import org.apache.hadoop.hbase.wal.WAL;
import org.apache.hadoop.hbase.wal.WALEdit;
import org.apache.hadoop.hdfs.DFSConfigKeys;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestResettingCounters.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestResettingCounters.java
index 0b68754..d28698d 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestResettingCounters.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestResettingCounters.java
@@ -24,8 +24,15 @@ import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.*;
+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.HColumnDescriptor;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.HTableDescriptor;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Durability;
import org.apache.hadoop.hbase.client.Increment;
import org.apache.hadoop.hbase.client.Result;
@@ -102,7 +109,7 @@ public class TestResettingCounters {
// increment all qualifiers, should have value=6 for all
Result result = region.increment(all, HConstants.NO_NONCE,
HConstants.NO_NONCE);
assertEquals(numQualifiers, result.size());
- Cell [] kvs = result.rawCells();
+ Cell[] kvs = result.rawCells();
for (int i=0;i<kvs.length;i++) {
System.out.println(kvs[i].toString());
assertTrue(CellUtil.matchingQualifier(kvs[i], qualifiers[i]));
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRowTooBig.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRowTooBig.java
index 904c2b9..5a4cea6 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRowTooBig.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRowTooBig.java
@@ -19,8 +19,13 @@ package org.apache.hadoop.hbase.regionserver;
import java.io.IOException;
import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+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.HTableDescriptor;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.RowTooBigException;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSimpleTimeRangeTracker.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSimpleTimeRangeTracker.java
index a32fbdf..2858419 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSimpleTimeRangeTracker.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSimpleTimeRangeTracker.java
@@ -23,7 +23,6 @@ import static org.junit.Assert.assertTrue;
import java.io.DataOutputStream;
import java.io.IOException;
-import java.util.Optional;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.io.ByteArrayOutputStream;
import org.apache.hadoop.hbase.io.TimeRange;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestWalAndCompactingMemStoreFlush.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestWalAndCompactingMemStoreFlush.java
index edd8382..cc0307f 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestWalAndCompactingMemStoreFlush.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestWalAndCompactingMemStoreFlush.java
@@ -26,8 +26,15 @@ import java.util.concurrent.ThreadPoolExecutor;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseConfiguration;
+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.HTableDescriptor;
+import org.apache.hadoop.hbase.MemoryCompactionPolicy;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.testclassification.RegionServerTests;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/AbstractTestFSWAL.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/AbstractTestFSWAL.java
index 5336963..d744bc6 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/AbstractTestFSWAL.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/AbstractTestFSWAL.java
@@ -17,13 +17,14 @@
*/
package org.apache.hadoop.hbase.regionserver.wal;
-import static org.junit.Assert.*;
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
-import static org.hamcrest.CoreMatchers.*;
import java.io.IOException;
import java.util.ArrayList;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultyProtobufLogReader.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultyProtobufLogReader.java
index f1508e5..236dd3c3 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultyProtobufLogReader.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/FaultyProtobufLogReader.java
@@ -22,8 +22,6 @@ import java.util.LinkedList;
import java.util.Queue;
import org.apache.hadoop.hbase.wal.WAL.Entry;
-import org.apache.hadoop.hbase.wal.WALEdit;
-import org.apache.hadoop.hbase.wal.WALKeyImpl;
public class FaultyProtobufLogReader extends ProtobufLogReader {
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALConfiguration.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALConfiguration.java
index 4f03be5..f3f48e9 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALConfiguration.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALConfiguration.java
@@ -40,7 +40,6 @@ import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.Arrays;
-import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestMultiSlaveReplication.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestMultiSlaveReplication.java
index df2b97c..e871251 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestMultiSlaveReplication.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestMultiSlaveReplication.java
@@ -19,9 +19,7 @@ package org.apache.hadoop.hbase.replication;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.IOException;
@@ -29,8 +27,14 @@ import java.util.Arrays;
import java.util.concurrent.CountDownLatch;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseConfiguration;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HColumnDescriptor;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.HTableDescriptor;
+import org.apache.hadoop.hbase.MiniHBaseCluster;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Get;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestReplicationDroppedTables.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestReplicationDroppedTables.java
index ffa03a2..ed3d84a 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestReplicationDroppedTables.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestReplicationDroppedTables.java
@@ -20,8 +20,6 @@ package org.apache.hadoop.hbase.replication;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.fail;
-import java.util.ArrayList;
-import java.util.List;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/regionserver/TestRegionReplicaReplicationEndpointNoMaster.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/regionserver/TestRegionReplicaReplicationEndpointNoMaster.java
index ab67d94..a47e61e 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/regionserver/TestRegionReplicaReplicationEndpointNoMaster.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/replication/regionserver/TestRegionReplicaReplicationEndpointNoMaster.java
@@ -19,7 +19,6 @@ package org.apache.hadoop.hbase.replication.regionserver;
import static
org.apache.hadoop.hbase.regionserver.TestRegionServerNoMaster.closeRegion;
import static
org.apache.hadoop.hbase.regionserver.TestRegionServerNoMaster.openRegion;
-import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/tool/TestCanaryTool.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/tool/TestCanaryTool.java
index 6c23764..bc745f6c 100644
---
a/hbase-server/src/test/java/org/apache/hadoop/hbase/tool/TestCanaryTool.java
+++
b/hbase-server/src/test/java/org/apache/hadoop/hbase/tool/TestCanaryTool.java
@@ -31,8 +31,11 @@ import static org.mockito.Mockito.verify;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
-import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.ServerName;
+import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.RegionInfo;
diff --git
a/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestFSVisitor.java
b/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestFSVisitor.java
index aa2a745..a947e58 100644
--- a/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestFSVisitor.java
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestFSVisitor.java
@@ -29,8 +29,10 @@ import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hbase.testclassification.MiscTests;
-import org.junit.*;
+import org.junit.After;
+import org.junit.Before;
import org.junit.ClassRule;
+import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
diff --git
a/hbase-zookeeper/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKLeaderManager.java
b/hbase-zookeeper/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKLeaderManager.java
index 8371f91..432779e 100644
---
a/hbase-zookeeper/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKLeaderManager.java
+++
b/hbase-zookeeper/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKLeaderManager.java
@@ -18,7 +18,6 @@
package org.apache.hadoop.hbase.zookeeper;
import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
