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Posted to commits@cassandra.apache.org by db...@apache.org on 2017/01/30 02:22:39 UTC

cassandra git commit: clean up dead imports

Repository: cassandra
Updated Branches:
  refs/heads/trunk 619178bc8 -> e96ce6d13


clean up dead imports


Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo
Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/e96ce6d1
Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/e96ce6d1
Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/e96ce6d1

Branch: refs/heads/trunk
Commit: e96ce6d132129025ff6b923129cb67eed2f97931
Parents: 619178b
Author: Dave Brosius <db...@mebigfatguy.com>
Authored: Sun Jan 29 21:22:18 2017 -0500
Committer: Dave Brosius <db...@mebigfatguy.com>
Committed: Sun Jan 29 21:22:18 2017 -0500

----------------------------------------------------------------------
 build.xml                                            |  1 +
 .../apache/cassandra/auth/CassandraRoleManager.java  |  1 -
 .../org/apache/cassandra/cache/CounterCacheKey.java  |  2 --
 src/java/org/apache/cassandra/cache/KeyCacheKey.java |  2 --
 src/java/org/apache/cassandra/cache/OHCProvider.java |  1 -
 .../org/apache/cassandra/cql3/ColumnIdentifier.java  |  3 +--
 src/java/org/apache/cassandra/cql3/ResultSet.java    |  1 -
 .../cassandra/cql3/statements/IndexTarget.java       |  5 -----
 .../apache/cassandra/db/aggregation/GroupMaker.java  |  2 --
 .../cassandra/db/commitlog/CommitLogArchiver.java    |  1 -
 .../compaction/writers/DefaultCompactionWriter.java  |  1 -
 .../writers/MajorLeveledCompactionWriter.java        |  1 -
 .../db/compaction/writers/MaxSSTableSizeWriter.java  |  1 -
 .../writers/SplittingSizeTieredCompactionWriter.java |  1 -
 .../cassandra/db/lifecycle/LifecycleTransaction.java |  1 -
 .../apache/cassandra/db/marshal/CompositeType.java   |  4 ----
 .../db/rows/RowAndDeletionMergeIterator.java         |  1 -
 .../dht/tokenallocator/TokenAllocation.java          |  2 --
 .../org/apache/cassandra/hadoop/ConfigHelper.java    | 15 ---------------
 .../hints/CompressedChecksummedDataInput.java        |  1 -
 .../hints/EncryptedChecksummedDataInput.java         |  1 -
 .../index/internal/CassandraIndexSearcher.java       |  1 -
 .../index/internal/CollatedViewIndexBuilder.java     |  1 -
 .../cassandra/io/compress/CompressionMetadata.java   |  1 -
 .../org/apache/cassandra/io/sstable/Component.java   |  6 +-----
 .../org/apache/cassandra/io/sstable/Descriptor.java  |  1 -
 .../cassandra/io/sstable/SSTableTxnWriter.java       |  1 -
 .../cassandra/io/sstable/format/SSTableWriter.java   |  1 -
 .../apache/cassandra/io/sstable/format/Version.java  |  1 -
 .../apache/cassandra/net/OutboundTcpConnection.java  |  1 -
 .../cassandra/service/BatchlogResponseHandler.java   |  1 -
 .../apache/cassandra/service/CassandraDaemon.java    |  1 -
 .../org/apache/cassandra/service/ReadCallback.java   |  1 -
 .../org/apache/cassandra/service/StartupChecks.java  |  1 -
 .../org/apache/cassandra/service/paxos/Commit.java   |  3 ---
 .../apache/cassandra/service/paxos/PaxosState.java   | 11 ++++-------
 .../cassandra/service/paxos/PrepareResponse.java     |  5 -----
 .../apache/cassandra/streaming/StreamSummary.java    |  3 ---
 .../streaming/messages/IncomingFileMessage.java      |  2 --
 src/java/org/apache/cassandra/tools/NodeProbe.java   |  1 -
 .../cassandra/tools/SSTableRepairedAtSetter.java     |  2 --
 .../apache/cassandra/tools/StandaloneSplitter.java   |  1 -
 .../tools/nodetool/stats/TpStatsPrinter.java         |  1 -
 .../cassandra/transport/messages/ResultMessage.java  |  2 --
 src/java/org/apache/cassandra/utils/MerkleTree.java  |  1 -
 .../NoReplicationTokenAllocatorTest.java             |  1 -
 .../io/sstable/CQLSSTableWriterLongTest.java         |  2 --
 .../org/apache/cassandra/cql3/KeyCacheCqlTest.java   |  1 -
 .../cassandra/cql3/validation/entities/TypeTest.java |  1 -
 .../cql3/validation/operations/CreateTest.java       |  1 -
 .../operations/SelectOrderedPartitionerTest.java     |  1 -
 .../cql3/validation/operations/UpdateTest.java       |  1 -
 .../org/apache/cassandra/db/SystemKeyspaceTest.java  |  5 -----
 .../cassandra/db/commitlog/CommitLogUpgradeTest.java |  1 -
 .../gms/PendingRangeCalculatorServiceTest.java       |  1 -
 .../org/apache/cassandra/hints/AlteredHints.java     |  1 -
 .../apache/cassandra/hints/HintsBufferPoolTest.java  |  1 -
 .../index/internal/CustomCassandraIndex.java         |  1 -
 .../compress/CompressedRandomAccessReaderTest.java   |  1 -
 .../io/compress/CompressedSequentialWriterTest.java  |  1 -
 .../io/sstable/CQLSSTableWriterClientTest.java       |  1 -
 .../apache/cassandra/io/util/MmappedRegionsTest.java |  1 -
 .../cassandra/net/RateBasedBackPressureTest.java     |  1 -
 .../apache/cassandra/service/SerializationsTest.java |  3 +--
 .../apache/cassandra/streaming/SessionInfoTest.java  |  1 -
 .../cassandra/streaming/StreamTransferTaskTest.java  |  1 -
 .../org/apache/cassandra/transport/DataTypeTest.java |  2 --
 .../org/apache/cassandra/transport/SerDeserTest.java |  1 -
 .../apache/cassandra/utils/CassandraVersionTest.java |  1 -
 69 files changed, 8 insertions(+), 122 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/build.xml
----------------------------------------------------------------------
diff --git a/build.xml b/build.xml
index 5ef1b5b..39a7d81 100644
--- a/build.xml
+++ b/build.xml
@@ -617,6 +617,7 @@
       <!-- retrieve artifacts -->
       <artifact:dependencies pomRefId="build-deps-pom"
                              filesetId="build-dependency-jars"
+      	                     sourcesFilesetId="build-dependency-sources-jars"
                              cacheDependencyRefs="true"
                              dependencyRefsBuildFile="${build.dir}/build-dependencies.xml">
           <remoteRepository refid="central"/>

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/auth/CassandraRoleManager.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/auth/CassandraRoleManager.java b/src/java/org/apache/cassandra/auth/CassandraRoleManager.java
index bd1d176..244f786 100644
--- a/src/java/org/apache/cassandra/auth/CassandraRoleManager.java
+++ b/src/java/org/apache/cassandra/auth/CassandraRoleManager.java
@@ -39,7 +39,6 @@ import org.apache.cassandra.cql3.statements.SelectStatement;
 import org.apache.cassandra.db.ConsistencyLevel;
 import org.apache.cassandra.db.marshal.UTF8Type;
 import org.apache.cassandra.exceptions.*;
-import org.apache.cassandra.net.MessagingService;
 import org.apache.cassandra.service.QueryState;
 import org.apache.cassandra.transport.messages.ResultMessage;
 import org.apache.cassandra.utils.ByteBufferUtil;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/cache/CounterCacheKey.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cache/CounterCacheKey.java b/src/java/org/apache/cassandra/cache/CounterCacheKey.java
index 2d123d4..dc3ce4e 100644
--- a/src/java/org/apache/cassandra/cache/CounterCacheKey.java
+++ b/src/java/org/apache/cassandra/cache/CounterCacheKey.java
@@ -20,10 +20,8 @@ package org.apache.cassandra.cache;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
-import java.util.UUID;
 
 import org.apache.cassandra.db.*;
 import org.apache.cassandra.db.filter.ClusteringIndexFilter;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/cache/KeyCacheKey.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cache/KeyCacheKey.java b/src/java/org/apache/cassandra/cache/KeyCacheKey.java
index 3728cae..ac6f1f9 100644
--- a/src/java/org/apache/cassandra/cache/KeyCacheKey.java
+++ b/src/java/org/apache/cassandra/cache/KeyCacheKey.java
@@ -19,9 +19,7 @@ package org.apache.cassandra.cache;
 
 import java.nio.ByteBuffer;
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.Objects;
-import java.util.UUID;
 
 import org.apache.cassandra.db.marshal.UTF8Type;
 import org.apache.cassandra.io.sstable.Descriptor;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/cache/OHCProvider.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cache/OHCProvider.java b/src/java/org/apache/cassandra/cache/OHCProvider.java
index a465bd9..9fb4dfb 100644
--- a/src/java/org/apache/cassandra/cache/OHCProvider.java
+++ b/src/java/org/apache/cassandra/cache/OHCProvider.java
@@ -20,7 +20,6 @@ package org.apache.cassandra.cache;
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.Iterator;
-import java.util.UUID;
 
 import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.db.TypeSizes;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/cql3/ColumnIdentifier.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cql3/ColumnIdentifier.java b/src/java/org/apache/cassandra/cql3/ColumnIdentifier.java
index 7436c90..d2ce3ed 100644
--- a/src/java/org/apache/cassandra/cql3/ColumnIdentifier.java
+++ b/src/java/org/apache/cassandra/cql3/ColumnIdentifier.java
@@ -23,7 +23,6 @@ import java.util.concurrent.ConcurrentMap;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.MapMaker;
 
 import org.apache.cassandra.cache.IMeasurableMemory;
@@ -41,7 +40,7 @@ public class ColumnIdentifier implements IMeasurableMemory, Comparable<ColumnIde
 {
     private static final Pattern PATTERN_DOUBLE_QUOTE = Pattern.compile("\"", Pattern.LITERAL);
     private static final String ESCAPED_DOUBLE_QUOTE = Matcher.quoteReplacement("\"\"");
-    
+
     public final ByteBuffer bytes;
     private final String text;
     /**

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/cql3/ResultSet.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cql3/ResultSet.java b/src/java/org/apache/cassandra/cql3/ResultSet.java
index f0692da..82590fb 100644
--- a/src/java/org/apache/cassandra/cql3/ResultSet.java
+++ b/src/java/org/apache/cassandra/cql3/ResultSet.java
@@ -24,7 +24,6 @@ import io.netty.buffer.ByteBuf;
 
 import org.apache.cassandra.transport.*;
 import org.apache.cassandra.db.marshal.AbstractType;
-import org.apache.cassandra.db.marshal.ReversedType;
 import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.service.pager.PagingState;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/cql3/statements/IndexTarget.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/cql3/statements/IndexTarget.java b/src/java/org/apache/cassandra/cql3/statements/IndexTarget.java
index 12d8022..a82f600 100644
--- a/src/java/org/apache/cassandra/cql3/statements/IndexTarget.java
+++ b/src/java/org/apache/cassandra/cql3/statements/IndexTarget.java
@@ -17,11 +17,6 @@
  */
 package org.apache.cassandra.cql3.statements;
 
-import java.util.regex.Pattern;
-
-import com.google.common.collect.Iterables;
-
-import org.apache.cassandra.db.marshal.AbstractType;
 import org.apache.cassandra.schema.ColumnMetadata;
 import org.apache.cassandra.schema.TableMetadata;
 import org.apache.cassandra.cql3.ColumnIdentifier;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/aggregation/GroupMaker.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/aggregation/GroupMaker.java b/src/java/org/apache/cassandra/db/aggregation/GroupMaker.java
index f6ad433..ff0ecaf 100644
--- a/src/java/org/apache/cassandra/db/aggregation/GroupMaker.java
+++ b/src/java/org/apache/cassandra/db/aggregation/GroupMaker.java
@@ -18,12 +18,10 @@
 package org.apache.cassandra.db.aggregation;
 
 import java.nio.ByteBuffer;
-import java.util.Arrays;
 
 import org.apache.cassandra.db.Clustering;
 import org.apache.cassandra.db.ClusteringComparator;
 import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.utils.ByteBufferUtil;
 
 /**
  * A <code>GroupMaker</code> can be used to determine if some sorted rows belongs to the same group or not.

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/commitlog/CommitLogArchiver.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/commitlog/CommitLogArchiver.java b/src/java/org/apache/cassandra/db/commitlog/CommitLogArchiver.java
index c7c5971..b58a316 100644
--- a/src/java/org/apache/cassandra/db/commitlog/CommitLogArchiver.java
+++ b/src/java/org/apache/cassandra/db/commitlog/CommitLogArchiver.java
@@ -42,7 +42,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.google.common.base.Strings;
-import com.google.common.base.Throwables;
 
 public class CommitLogArchiver
 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/compaction/writers/DefaultCompactionWriter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/compaction/writers/DefaultCompactionWriter.java b/src/java/org/apache/cassandra/db/compaction/writers/DefaultCompactionWriter.java
index 6f2586b..4ffc747 100644
--- a/src/java/org/apache/cassandra/db/compaction/writers/DefaultCompactionWriter.java
+++ b/src/java/org/apache/cassandra/db/compaction/writers/DefaultCompactionWriter.java
@@ -28,7 +28,6 @@ import org.apache.cassandra.db.Directories;
 import org.apache.cassandra.db.SerializationHeader;
 import org.apache.cassandra.db.rows.UnfilteredRowIterator;
 import org.apache.cassandra.db.lifecycle.LifecycleTransaction;
-import org.apache.cassandra.io.sstable.Descriptor;
 import org.apache.cassandra.io.sstable.format.SSTableReader;
 import org.apache.cassandra.io.sstable.format.SSTableWriter;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/compaction/writers/MajorLeveledCompactionWriter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/compaction/writers/MajorLeveledCompactionWriter.java b/src/java/org/apache/cassandra/db/compaction/writers/MajorLeveledCompactionWriter.java
index 5eac658..c2d3a7d 100644
--- a/src/java/org/apache/cassandra/db/compaction/writers/MajorLeveledCompactionWriter.java
+++ b/src/java/org/apache/cassandra/db/compaction/writers/MajorLeveledCompactionWriter.java
@@ -26,7 +26,6 @@ import org.apache.cassandra.db.SerializationHeader;
 import org.apache.cassandra.db.rows.UnfilteredRowIterator;
 import org.apache.cassandra.db.compaction.LeveledManifest;
 import org.apache.cassandra.db.lifecycle.LifecycleTransaction;
-import org.apache.cassandra.io.sstable.Descriptor;
 import org.apache.cassandra.io.sstable.format.SSTableReader;
 import org.apache.cassandra.io.sstable.format.SSTableWriter;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/compaction/writers/MaxSSTableSizeWriter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/compaction/writers/MaxSSTableSizeWriter.java b/src/java/org/apache/cassandra/db/compaction/writers/MaxSSTableSizeWriter.java
index 862e68b..eb05a23 100644
--- a/src/java/org/apache/cassandra/db/compaction/writers/MaxSSTableSizeWriter.java
+++ b/src/java/org/apache/cassandra/db/compaction/writers/MaxSSTableSizeWriter.java
@@ -26,7 +26,6 @@ import org.apache.cassandra.db.SerializationHeader;
 import org.apache.cassandra.db.compaction.OperationType;
 import org.apache.cassandra.db.rows.UnfilteredRowIterator;
 import org.apache.cassandra.db.lifecycle.LifecycleTransaction;
-import org.apache.cassandra.io.sstable.Descriptor;
 import org.apache.cassandra.io.sstable.format.SSTableReader;
 import org.apache.cassandra.io.sstable.format.SSTableWriter;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/compaction/writers/SplittingSizeTieredCompactionWriter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/compaction/writers/SplittingSizeTieredCompactionWriter.java b/src/java/org/apache/cassandra/db/compaction/writers/SplittingSizeTieredCompactionWriter.java
index 79f9d1a..3a3e805 100644
--- a/src/java/org/apache/cassandra/db/compaction/writers/SplittingSizeTieredCompactionWriter.java
+++ b/src/java/org/apache/cassandra/db/compaction/writers/SplittingSizeTieredCompactionWriter.java
@@ -29,7 +29,6 @@ import org.apache.cassandra.db.RowIndexEntry;
 import org.apache.cassandra.db.SerializationHeader;
 import org.apache.cassandra.db.rows.UnfilteredRowIterator;
 import org.apache.cassandra.db.lifecycle.LifecycleTransaction;
-import org.apache.cassandra.io.sstable.Descriptor;
 import org.apache.cassandra.io.sstable.format.SSTableReader;
 import org.apache.cassandra.io.sstable.format.SSTableWriter;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/lifecycle/LifecycleTransaction.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/lifecycle/LifecycleTransaction.java b/src/java/org/apache/cassandra/db/lifecycle/LifecycleTransaction.java
index 89b82a1..2bf81a9 100644
--- a/src/java/org/apache/cassandra/db/lifecycle/LifecycleTransaction.java
+++ b/src/java/org/apache/cassandra/db/lifecycle/LifecycleTransaction.java
@@ -30,7 +30,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import org.apache.cassandra.schema.TableMetadata;
-import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.db.ColumnFamilyStore;
 import org.apache.cassandra.db.Directories;
 import org.apache.cassandra.db.compaction.OperationType;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/marshal/CompositeType.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/marshal/CompositeType.java b/src/java/org/apache/cassandra/db/marshal/CompositeType.java
index 9eadd85..12e7fc3 100644
--- a/src/java/org/apache/cassandra/db/marshal/CompositeType.java
+++ b/src/java/org/apache/cassandra/db/marshal/CompositeType.java
@@ -17,7 +17,6 @@
  */
 package org.apache.cassandra.db.marshal;
 
-import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -28,11 +27,8 @@ import java.util.concurrent.ConcurrentMap;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
 
-import org.apache.cassandra.cql3.ColumnIdentifier;
 import org.apache.cassandra.exceptions.ConfigurationException;
 import org.apache.cassandra.exceptions.SyntaxException;
-import org.apache.cassandra.io.util.DataOutputBuffer;
-import org.apache.cassandra.io.util.DataOutputBufferFixed;
 import org.apache.cassandra.serializers.MarshalException;
 import org.apache.cassandra.utils.ByteBufferUtil;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/db/rows/RowAndDeletionMergeIterator.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/db/rows/RowAndDeletionMergeIterator.java b/src/java/org/apache/cassandra/db/rows/RowAndDeletionMergeIterator.java
index e08b370..456141e 100644
--- a/src/java/org/apache/cassandra/db/rows/RowAndDeletionMergeIterator.java
+++ b/src/java/org/apache/cassandra/db/rows/RowAndDeletionMergeIterator.java
@@ -21,7 +21,6 @@ import java.util.Comparator;
 import java.util.Iterator;
 
 import org.apache.cassandra.schema.TableMetadata;
-import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.db.*;
 import org.apache.cassandra.db.filter.ColumnFilter;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/dht/tokenallocator/TokenAllocation.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/dht/tokenallocator/TokenAllocation.java b/src/java/org/apache/cassandra/dht/tokenallocator/TokenAllocation.java
index 9c50613..1d06b11 100644
--- a/src/java/org/apache/cassandra/dht/tokenallocator/TokenAllocation.java
+++ b/src/java/org/apache/cassandra/dht/tokenallocator/TokenAllocation.java
@@ -35,14 +35,12 @@ import org.slf4j.LoggerFactory;
 
 import org.apache.cassandra.dht.Token;
 import org.apache.cassandra.exceptions.ConfigurationException;
-import org.apache.cassandra.gms.Gossiper;
 import org.apache.cassandra.locator.AbstractReplicationStrategy;
 import org.apache.cassandra.locator.IEndpointSnitch;
 import org.apache.cassandra.locator.NetworkTopologyStrategy;
 import org.apache.cassandra.locator.SimpleStrategy;
 import org.apache.cassandra.locator.TokenMetadata;
 import org.apache.cassandra.locator.TokenMetadata.Topology;
-import org.apache.cassandra.utils.FBUtilities;
 
 public class TokenAllocation
 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/hadoop/ConfigHelper.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/hadoop/ConfigHelper.java b/src/java/org/apache/cassandra/hadoop/ConfigHelper.java
index 078d712..8c0ed1e 100644
--- a/src/java/org/apache/cassandra/hadoop/ConfigHelper.java
+++ b/src/java/org/apache/cassandra/hadoop/ConfigHelper.java
@@ -20,8 +20,6 @@
  */
 package org.apache.cassandra.hadoop;
 
-import java.io.IOException;
-import java.util.*;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -29,7 +27,6 @@ import org.slf4j.LoggerFactory;
 import org.apache.cassandra.dht.IPartitioner;
 import org.apache.cassandra.schema.CompressionParams;
 import org.apache.cassandra.utils.FBUtilities;
-import org.apache.cassandra.utils.Hex;
 import org.apache.cassandra.utils.Pair;
 import org.apache.hadoop.conf.Configuration;
 
@@ -396,16 +393,4 @@ public class ConfigHelper
     {
         conf.set(OUTPUT_LOCAL_DC_ONLY, Boolean.toString(localDCOnly));
     }
-
-    private static Map<String, String> getOptions(Configuration conf, Set<String> supportedOptions)
-    {
-        Map<String, String> options = new HashMap<>();
-        for (String optionKey : supportedOptions)
-        {
-            String optionValue = conf.get(optionKey);
-            if (optionValue != null)
-                options.put(optionKey, optionValue);
-        }
-        return options;
-    }
 }

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/hints/CompressedChecksummedDataInput.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/hints/CompressedChecksummedDataInput.java b/src/java/org/apache/cassandra/hints/CompressedChecksummedDataInput.java
index 0766fa5..4982a03 100644
--- a/src/java/org/apache/cassandra/hints/CompressedChecksummedDataInput.java
+++ b/src/java/org/apache/cassandra/hints/CompressedChecksummedDataInput.java
@@ -23,7 +23,6 @@ import java.nio.ByteBuffer;
 
 import com.google.common.annotations.VisibleForTesting;
 
-import org.apache.cassandra.hints.ChecksummedDataInput.Position;
 import org.apache.cassandra.io.FSReadError;
 import org.apache.cassandra.io.compress.ICompressor;
 import org.apache.cassandra.io.util.ChannelProxy;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/hints/EncryptedChecksummedDataInput.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/hints/EncryptedChecksummedDataInput.java b/src/java/org/apache/cassandra/hints/EncryptedChecksummedDataInput.java
index b01161d..a70a443 100644
--- a/src/java/org/apache/cassandra/hints/EncryptedChecksummedDataInput.java
+++ b/src/java/org/apache/cassandra/hints/EncryptedChecksummedDataInput.java
@@ -25,7 +25,6 @@ import com.google.common.annotations.VisibleForTesting;
 
 import io.netty.util.concurrent.FastThreadLocal;
 import org.apache.cassandra.security.EncryptionUtils;
-import org.apache.cassandra.hints.CompressedChecksummedDataInput.Position;
 import org.apache.cassandra.io.FSReadError;
 import org.apache.cassandra.io.compress.ICompressor;
 import org.apache.cassandra.io.util.ChannelProxy;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/index/internal/CassandraIndexSearcher.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/index/internal/CassandraIndexSearcher.java b/src/java/org/apache/cassandra/index/internal/CassandraIndexSearcher.java
index 005e5b9..8e56667 100644
--- a/src/java/org/apache/cassandra/index/internal/CassandraIndexSearcher.java
+++ b/src/java/org/apache/cassandra/index/internal/CassandraIndexSearcher.java
@@ -27,7 +27,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import org.apache.cassandra.schema.TableMetadata;
-import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.db.*;
 import org.apache.cassandra.db.filter.*;
 import org.apache.cassandra.db.partitions.UnfilteredPartitionIterator;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/index/internal/CollatedViewIndexBuilder.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/index/internal/CollatedViewIndexBuilder.java b/src/java/org/apache/cassandra/index/internal/CollatedViewIndexBuilder.java
index 103a1ee..076346a 100644
--- a/src/java/org/apache/cassandra/index/internal/CollatedViewIndexBuilder.java
+++ b/src/java/org/apache/cassandra/index/internal/CollatedViewIndexBuilder.java
@@ -22,7 +22,6 @@ import java.util.UUID;
 
 import org.apache.cassandra.db.ColumnFamilyStore;
 import org.apache.cassandra.db.DecoratedKey;
-import org.apache.cassandra.db.Keyspace;
 import org.apache.cassandra.db.compaction.CompactionInfo;
 import org.apache.cassandra.db.compaction.CompactionInterruptedException;
 import org.apache.cassandra.db.compaction.OperationType;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/io/compress/CompressionMetadata.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/io/compress/CompressionMetadata.java b/src/java/org/apache/cassandra/io/compress/CompressionMetadata.java
index 7d98570..be264bf 100644
--- a/src/java/org/apache/cassandra/io/compress/CompressionMetadata.java
+++ b/src/java/org/apache/cassandra/io/compress/CompressionMetadata.java
@@ -52,7 +52,6 @@ import org.apache.cassandra.io.util.DataOutputPlus;
 import org.apache.cassandra.io.util.Memory;
 import org.apache.cassandra.io.util.SafeMemory;
 import org.apache.cassandra.schema.CompressionParams;
-import org.apache.cassandra.utils.ChecksumType;
 import org.apache.cassandra.utils.Pair;
 import org.apache.cassandra.utils.concurrent.Transactional;
 import org.apache.cassandra.utils.concurrent.Ref;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/io/sstable/Component.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/io/sstable/Component.java b/src/java/org/apache/cassandra/io/sstable/Component.java
index 469a25c..9daac7c 100644
--- a/src/java/org/apache/cassandra/io/sstable/Component.java
+++ b/src/java/org/apache/cassandra/io/sstable/Component.java
@@ -17,15 +17,11 @@
  */
 package org.apache.cassandra.io.sstable;
 
-import java.io.File;
 import java.util.EnumSet;
 import java.util.regex.Pattern;
 
 import com.google.common.base.Objects;
 
-import org.apache.cassandra.utils.ChecksumType;
-import org.apache.cassandra.utils.Pair;
-
 /**
  * SSTables are made up of multiple components in separate files. Components are
  * identified by a type and an id, but required unique components (such as the Data
@@ -62,7 +58,7 @@ public class Component
         SECONDARY_INDEX("SI_.*.db"),
         // custom component, used by e.g. custom compaction strategy
         CUSTOM(null);
-        
+
         final String repr;
         Type(String repr)
         {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/io/sstable/Descriptor.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/io/sstable/Descriptor.java b/src/java/org/apache/cassandra/io/sstable/Descriptor.java
index 3804fd8..36943ff 100644
--- a/src/java/org/apache/cassandra/io/sstable/Descriptor.java
+++ b/src/java/org/apache/cassandra/io/sstable/Descriptor.java
@@ -24,7 +24,6 @@ import java.util.*;
 import java.util.regex.Pattern;
 
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.CharMatcher;
 import com.google.common.base.Objects;
 import com.google.common.base.Splitter;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/io/sstable/SSTableTxnWriter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/io/sstable/SSTableTxnWriter.java b/src/java/org/apache/cassandra/io/sstable/SSTableTxnWriter.java
index fcf7cd6..75797a9 100644
--- a/src/java/org/apache/cassandra/io/sstable/SSTableTxnWriter.java
+++ b/src/java/org/apache/cassandra/io/sstable/SSTableTxnWriter.java
@@ -32,7 +32,6 @@ import org.apache.cassandra.io.sstable.format.RangeAwareSSTableWriter;
 import org.apache.cassandra.io.sstable.format.SSTableFormat;
 import org.apache.cassandra.io.sstable.format.SSTableReader;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;
-import org.apache.cassandra.schema.TableMetadata;
 import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.utils.concurrent.Transactional;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/io/sstable/format/SSTableWriter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/io/sstable/format/SSTableWriter.java b/src/java/org/apache/cassandra/io/sstable/format/SSTableWriter.java
index 26746ad..31354a0 100644
--- a/src/java/org/apache/cassandra/io/sstable/format/SSTableWriter.java
+++ b/src/java/org/apache/cassandra/io/sstable/format/SSTableWriter.java
@@ -35,7 +35,6 @@ import org.apache.cassandra.io.FSWriteError;
 import org.apache.cassandra.io.sstable.Component;
 import org.apache.cassandra.io.sstable.Descriptor;
 import org.apache.cassandra.io.sstable.SSTable;
-import org.apache.cassandra.io.sstable.format.big.BigFormat;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;
 import org.apache.cassandra.io.sstable.metadata.MetadataComponent;
 import org.apache.cassandra.io.sstable.metadata.MetadataType;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/io/sstable/format/Version.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/io/sstable/format/Version.java b/src/java/org/apache/cassandra/io/sstable/format/Version.java
index b78e434..f900fc4 100644
--- a/src/java/org/apache/cassandra/io/sstable/format/Version.java
+++ b/src/java/org/apache/cassandra/io/sstable/format/Version.java
@@ -19,7 +19,6 @@ package org.apache.cassandra.io.sstable.format;
 
 import java.util.regex.Pattern;
 
-import org.apache.cassandra.utils.ChecksumType;
 
 /**
  * A set of feature flags associated with a SSTable format

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/net/OutboundTcpConnection.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/net/OutboundTcpConnection.java b/src/java/org/apache/cassandra/net/OutboundTcpConnection.java
index f0cd746..e854f67 100644
--- a/src/java/org/apache/cassandra/net/OutboundTcpConnection.java
+++ b/src/java/org/apache/cassandra/net/OutboundTcpConnection.java
@@ -59,7 +59,6 @@ import org.apache.cassandra.utils.FBUtilities;
 import org.apache.cassandra.utils.JVMStabilityInspector;
 import org.apache.cassandra.utils.NanoTimeToCurrentTimeMillis;
 import org.apache.cassandra.utils.UUIDGen;
-import org.xerial.snappy.SnappyOutputStream;
 import org.apache.cassandra.config.Config;
 import org.apache.cassandra.config.DatabaseDescriptor;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/service/BatchlogResponseHandler.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/BatchlogResponseHandler.java b/src/java/org/apache/cassandra/service/BatchlogResponseHandler.java
index aabf7dd..708d1b8 100644
--- a/src/java/org/apache/cassandra/service/BatchlogResponseHandler.java
+++ b/src/java/org/apache/cassandra/service/BatchlogResponseHandler.java
@@ -25,7 +25,6 @@ import org.apache.cassandra.exceptions.RequestFailureReason;
 import org.apache.cassandra.exceptions.WriteFailureException;
 import org.apache.cassandra.exceptions.WriteTimeoutException;
 import org.apache.cassandra.net.MessageIn;
-import org.apache.cassandra.net.MessagingService;
 
 public class BatchlogResponseHandler<T> extends AbstractWriteResponseHandler<T>
 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/service/CassandraDaemon.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/CassandraDaemon.java b/src/java/org/apache/cassandra/service/CassandraDaemon.java
index 2beb039..fe84082 100644
--- a/src/java/org/apache/cassandra/service/CassandraDaemon.java
+++ b/src/java/org/apache/cassandra/service/CassandraDaemon.java
@@ -47,7 +47,6 @@ import org.slf4j.LoggerFactory;
 
 import org.apache.cassandra.concurrent.ScheduledExecutors;
 import org.apache.cassandra.schema.TableMetadata;
-import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.schema.Schema;
 import org.apache.cassandra.schema.SchemaConstants;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/service/ReadCallback.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/ReadCallback.java b/src/java/org/apache/cassandra/service/ReadCallback.java
index d63e860..2e75e1f 100644
--- a/src/java/org/apache/cassandra/service/ReadCallback.java
+++ b/src/java/org/apache/cassandra/service/ReadCallback.java
@@ -41,7 +41,6 @@ import org.apache.cassandra.exceptions.UnavailableException;
 import org.apache.cassandra.metrics.ReadRepairMetrics;
 import org.apache.cassandra.net.IAsyncCallbackWithFailure;
 import org.apache.cassandra.net.MessageIn;
-import org.apache.cassandra.net.MessageOut;
 import org.apache.cassandra.net.MessagingService;
 import org.apache.cassandra.db.ConsistencyLevel;
 import org.apache.cassandra.tracing.TraceState;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/service/StartupChecks.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/StartupChecks.java b/src/java/org/apache/cassandra/service/StartupChecks.java
index 767bfc6..0458820 100644
--- a/src/java/org/apache/cassandra/service/StartupChecks.java
+++ b/src/java/org/apache/cassandra/service/StartupChecks.java
@@ -30,7 +30,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import org.apache.cassandra.schema.TableMetadata;
-import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.schema.Schema;
 import org.apache.cassandra.schema.SchemaConstants;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/service/paxos/Commit.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/paxos/Commit.java b/src/java/org/apache/cassandra/service/paxos/Commit.java
index 6e23c8b..6d672f5 100644
--- a/src/java/org/apache/cassandra/service/paxos/Commit.java
+++ b/src/java/org/apache/cassandra/service/paxos/Commit.java
@@ -22,7 +22,6 @@ package org.apache.cassandra.service.paxos;
 
 
 import java.io.IOException;
-import java.nio.ByteBuffer;
 import java.util.UUID;
 
 import com.google.common.base.Objects;
@@ -34,8 +33,6 @@ import org.apache.cassandra.db.partitions.PartitionUpdate;
 import org.apache.cassandra.io.IVersionedSerializer;
 import org.apache.cassandra.io.util.DataInputPlus;
 import org.apache.cassandra.io.util.DataOutputPlus;
-import org.apache.cassandra.net.MessagingService;
-import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.UUIDGen;
 import org.apache.cassandra.utils.UUIDSerializer;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/service/paxos/PaxosState.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/paxos/PaxosState.java b/src/java/org/apache/cassandra/service/paxos/PaxosState.java
index cf7f3d3..7d59374 100644
--- a/src/java/org/apache/cassandra/service/paxos/PaxosState.java
+++ b/src/java/org/apache/cassandra/service/paxos/PaxosState.java
@@ -1,5 +1,5 @@
 /*
- * 
+ *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -7,25 +7,22 @@
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
- * 
+ *
  *   http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
- * 
+ *
  */
 package org.apache.cassandra.service.paxos;
 
-import java.util.concurrent.ExecutionException;
 import java.util.concurrent.locks.Lock;
 
-import com.google.common.base.Throwables;
 import com.google.common.util.concurrent.Striped;
-import com.google.common.util.concurrent.Uninterruptibles;
 
 import org.apache.cassandra.schema.TableMetadata;
 import org.apache.cassandra.config.DatabaseDescriptor;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/service/paxos/PrepareResponse.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/service/paxos/PrepareResponse.java b/src/java/org/apache/cassandra/service/paxos/PrepareResponse.java
index d8699c8..2110dd7 100644
--- a/src/java/org/apache/cassandra/service/paxos/PrepareResponse.java
+++ b/src/java/org/apache/cassandra/service/paxos/PrepareResponse.java
@@ -22,16 +22,11 @@ package org.apache.cassandra.service.paxos;
 
 
 import java.io.IOException;
-import java.util.UUID;
 
 import org.apache.cassandra.db.TypeSizes;
-import org.apache.cassandra.db.rows.SerializationHelper;
-import org.apache.cassandra.db.partitions.PartitionUpdate;
 import org.apache.cassandra.io.IVersionedSerializer;
 import org.apache.cassandra.io.util.DataInputPlus;
 import org.apache.cassandra.io.util.DataOutputPlus;
-import org.apache.cassandra.net.MessagingService;
-import org.apache.cassandra.utils.UUIDSerializer;
 
 public class PrepareResponse
 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/streaming/StreamSummary.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/streaming/StreamSummary.java b/src/java/org/apache/cassandra/streaming/StreamSummary.java
index 0d94f57..3f957c6 100644
--- a/src/java/org/apache/cassandra/streaming/StreamSummary.java
+++ b/src/java/org/apache/cassandra/streaming/StreamSummary.java
@@ -19,7 +19,6 @@ package org.apache.cassandra.streaming;
 
 import java.io.IOException;
 import java.io.Serializable;
-import java.util.UUID;
 
 import com.google.common.base.Objects;
 
@@ -27,9 +26,7 @@ import org.apache.cassandra.db.TypeSizes;
 import org.apache.cassandra.io.IVersionedSerializer;
 import org.apache.cassandra.io.util.DataInputPlus;
 import org.apache.cassandra.io.util.DataOutputPlus;
-import org.apache.cassandra.net.MessagingService;
 import org.apache.cassandra.schema.TableId;
-import org.apache.cassandra.utils.UUIDSerializer;
 
 /**
  * Summary of streaming.

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/streaming/messages/IncomingFileMessage.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/streaming/messages/IncomingFileMessage.java b/src/java/org/apache/cassandra/streaming/messages/IncomingFileMessage.java
index 66480d4..03bcaed 100644
--- a/src/java/org/apache/cassandra/streaming/messages/IncomingFileMessage.java
+++ b/src/java/org/apache/cassandra/streaming/messages/IncomingFileMessage.java
@@ -20,7 +20,6 @@ package org.apache.cassandra.streaming.messages;
 import java.io.IOException;
 import java.nio.channels.Channels;
 import java.nio.channels.ReadableByteChannel;
-import java.util.Optional;
 
 import org.apache.cassandra.io.sstable.SSTableMultiWriter;
 import org.apache.cassandra.io.util.DataInputPlus;
@@ -32,7 +31,6 @@ import org.apache.cassandra.streaming.StreamSession;
 import org.apache.cassandra.streaming.compress.CompressedStreamReader;
 import org.apache.cassandra.utils.JVMStabilityInspector;
 
-import static org.apache.cassandra.utils.Throwables.extractIOExceptionCause;
 
 /**
  * IncomingFileMessage is used to receive the part(or whole) of a SSTable data file.

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/tools/NodeProbe.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/tools/NodeProbe.java b/src/java/org/apache/cassandra/tools/NodeProbe.java
index 9e45d6a..5463255 100644
--- a/src/java/org/apache/cassandra/tools/NodeProbe.java
+++ b/src/java/org/apache/cassandra/tools/NodeProbe.java
@@ -74,7 +74,6 @@ import org.apache.cassandra.metrics.TableMetrics;
 import org.apache.cassandra.metrics.ThreadPoolMetrics;
 import org.apache.cassandra.net.MessagingService;
 import org.apache.cassandra.net.MessagingServiceMBean;
-import org.apache.cassandra.schema.CompactionParams.TombstoneOption;
 import org.apache.cassandra.service.CacheService;
 import org.apache.cassandra.service.CacheServiceMBean;
 import org.apache.cassandra.service.GCInspector;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/tools/SSTableRepairedAtSetter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/tools/SSTableRepairedAtSetter.java b/src/java/org/apache/cassandra/tools/SSTableRepairedAtSetter.java
index b97960a..a130177 100644
--- a/src/java/org/apache/cassandra/tools/SSTableRepairedAtSetter.java
+++ b/src/java/org/apache/cassandra/tools/SSTableRepairedAtSetter.java
@@ -25,8 +25,6 @@ import java.nio.file.attribute.FileTime;
 import java.util.Arrays;
 import java.util.List;
 
-import org.apache.cassandra.config.Config;
-import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.io.sstable.Component;
 import org.apache.cassandra.io.sstable.Descriptor;
 import org.apache.cassandra.service.ActiveRepairService;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/tools/StandaloneSplitter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/tools/StandaloneSplitter.java b/src/java/org/apache/cassandra/tools/StandaloneSplitter.java
index c5be02e..7a60b6f 100644
--- a/src/java/org/apache/cassandra/tools/StandaloneSplitter.java
+++ b/src/java/org/apache/cassandra/tools/StandaloneSplitter.java
@@ -35,7 +35,6 @@ import org.apache.cassandra.db.compaction.SSTableSplitter;
 import org.apache.cassandra.db.lifecycle.LifecycleTransaction;
 import org.apache.cassandra.io.sstable.*;
 import org.apache.cassandra.utils.JVMStabilityInspector;
-import org.apache.cassandra.utils.Pair;
 
 import static org.apache.cassandra.tools.BulkLoader.CmdLineOptions;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/tools/nodetool/stats/TpStatsPrinter.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/tools/nodetool/stats/TpStatsPrinter.java b/src/java/org/apache/cassandra/tools/nodetool/stats/TpStatsPrinter.java
index 45fc5ee..86bdf28 100644
--- a/src/java/org/apache/cassandra/tools/nodetool/stats/TpStatsPrinter.java
+++ b/src/java/org/apache/cassandra/tools/nodetool/stats/TpStatsPrinter.java
@@ -20,7 +20,6 @@ package org.apache.cassandra.tools.nodetool.stats;
 
 import java.io.PrintStream;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.Map;
 
 public class TpStatsPrinter

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/transport/messages/ResultMessage.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/transport/messages/ResultMessage.java b/src/java/org/apache/cassandra/transport/messages/ResultMessage.java
index 334aa89..e1ea948 100644
--- a/src/java/org/apache/cassandra/transport/messages/ResultMessage.java
+++ b/src/java/org/apache/cassandra/transport/messages/ResultMessage.java
@@ -17,11 +17,9 @@
  */
 package org.apache.cassandra.transport.messages;
 
-import java.util.*;
 
 import io.netty.buffer.ByteBuf;
 
-import org.apache.cassandra.cql3.ColumnSpecification;
 import org.apache.cassandra.cql3.CQLStatement;
 import org.apache.cassandra.cql3.ResultSet;
 import org.apache.cassandra.cql3.statements.SelectStatement;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/src/java/org/apache/cassandra/utils/MerkleTree.java
----------------------------------------------------------------------
diff --git a/src/java/org/apache/cassandra/utils/MerkleTree.java b/src/java/org/apache/cassandra/utils/MerkleTree.java
index 4ada91c..406601b 100644
--- a/src/java/org/apache/cassandra/utils/MerkleTree.java
+++ b/src/java/org/apache/cassandra/utils/MerkleTree.java
@@ -34,7 +34,6 @@ import org.apache.cassandra.exceptions.ConfigurationException;
 import org.apache.cassandra.io.IVersionedSerializer;
 import org.apache.cassandra.io.util.DataInputPlus;
 import org.apache.cassandra.io.util.DataOutputPlus;
-import org.apache.cassandra.net.MessagingService;
 
 /**
  * A MerkleTree implemented as a binary tree.

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/long/org/apache/cassandra/dht/tokenallocator/NoReplicationTokenAllocatorTest.java
----------------------------------------------------------------------
diff --git a/test/long/org/apache/cassandra/dht/tokenallocator/NoReplicationTokenAllocatorTest.java b/test/long/org/apache/cassandra/dht/tokenallocator/NoReplicationTokenAllocatorTest.java
index c53f788..202c0f2 100644
--- a/test/long/org/apache/cassandra/dht/tokenallocator/NoReplicationTokenAllocatorTest.java
+++ b/test/long/org/apache/cassandra/dht/tokenallocator/NoReplicationTokenAllocatorTest.java
@@ -20,7 +20,6 @@ package org.apache.cassandra.dht.tokenallocator;
 
 import java.util.Collections;
 import java.util.List;
-import java.util.Map;
 import java.util.NavigableMap;
 import java.util.PriorityQueue;
 import java.util.Random;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/long/org/apache/cassandra/io/sstable/CQLSSTableWriterLongTest.java
----------------------------------------------------------------------
diff --git a/test/long/org/apache/cassandra/io/sstable/CQLSSTableWriterLongTest.java b/test/long/org/apache/cassandra/io/sstable/CQLSSTableWriterLongTest.java
index 9674ca3..a6f428a 100644
--- a/test/long/org/apache/cassandra/io/sstable/CQLSSTableWriterLongTest.java
+++ b/test/long/org/apache/cassandra/io/sstable/CQLSSTableWriterLongTest.java
@@ -25,11 +25,9 @@ import java.util.Random;
 
 import com.google.common.io.Files;
 
-import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import org.apache.cassandra.SchemaLoader;
-import org.apache.cassandra.config.Config;
 import org.apache.cassandra.service.StorageService;
 
 public class CQLSSTableWriterLongTest

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/cql3/KeyCacheCqlTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/cql3/KeyCacheCqlTest.java b/test/unit/org/apache/cassandra/cql3/KeyCacheCqlTest.java
index 408d489..79cb497 100644
--- a/test/unit/org/apache/cassandra/cql3/KeyCacheCqlTest.java
+++ b/test/unit/org/apache/cassandra/cql3/KeyCacheCqlTest.java
@@ -43,7 +43,6 @@ import org.apache.cassandra.service.StorageService;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.assertNull;
 
 
 public class KeyCacheCqlTest extends CQLTester

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/cql3/validation/entities/TypeTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/cql3/validation/entities/TypeTest.java b/test/unit/org/apache/cassandra/cql3/validation/entities/TypeTest.java
index 60a0fdc..bb43d75 100644
--- a/test/unit/org/apache/cassandra/cql3/validation/entities/TypeTest.java
+++ b/test/unit/org/apache/cassandra/cql3/validation/entities/TypeTest.java
@@ -22,7 +22,6 @@ import org.apache.cassandra.cql3.CQLTester;
 
 import org.junit.Test;
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
 
 public class TypeTest extends CQLTester
 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/cql3/validation/operations/CreateTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/cql3/validation/operations/CreateTest.java b/test/unit/org/apache/cassandra/cql3/validation/operations/CreateTest.java
index 6339a46..1a8338f 100644
--- a/test/unit/org/apache/cassandra/cql3/validation/operations/CreateTest.java
+++ b/test/unit/org/apache/cassandra/cql3/validation/operations/CreateTest.java
@@ -27,7 +27,6 @@ import java.util.UUID;
 import org.junit.Test;
 
 import org.apache.cassandra.schema.TableMetadata;
-import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.schema.Schema;
 import org.apache.cassandra.schema.SchemaConstants;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/cql3/validation/operations/SelectOrderedPartitionerTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/cql3/validation/operations/SelectOrderedPartitionerTest.java b/test/unit/org/apache/cassandra/cql3/validation/operations/SelectOrderedPartitionerTest.java
index 3957305..8155038 100644
--- a/test/unit/org/apache/cassandra/cql3/validation/operations/SelectOrderedPartitionerTest.java
+++ b/test/unit/org/apache/cassandra/cql3/validation/operations/SelectOrderedPartitionerTest.java
@@ -30,7 +30,6 @@ import static org.junit.Assert.assertEquals;
 
 import org.apache.cassandra.config.DatabaseDescriptor;
 import org.apache.cassandra.cql3.CQLTester;
-import org.apache.cassandra.cql3.UntypedResultSet;
 import org.apache.cassandra.cql3.restrictions.StatementRestrictions;
 import org.apache.cassandra.dht.ByteOrderedPartitioner;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/cql3/validation/operations/UpdateTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/cql3/validation/operations/UpdateTest.java b/test/unit/org/apache/cassandra/cql3/validation/operations/UpdateTest.java
index 72d3466..61d50db 100644
--- a/test/unit/org/apache/cassandra/cql3/validation/operations/UpdateTest.java
+++ b/test/unit/org/apache/cassandra/cql3/validation/operations/UpdateTest.java
@@ -29,7 +29,6 @@ import org.apache.cassandra.cql3.Attributes;
 import org.apache.cassandra.cql3.CQLTester;
 import org.apache.cassandra.cql3.UntypedResultSet;
 import org.apache.cassandra.cql3.UntypedResultSet.Row;
-import org.apache.cassandra.utils.ByteBufferUtil;
 
 public class UpdateTest extends CQLTester
 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/db/SystemKeyspaceTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/SystemKeyspaceTest.java b/test/unit/org/apache/cassandra/db/SystemKeyspaceTest.java
index 72db2a4..d1b8ff5 100644
--- a/test/unit/org/apache/cassandra/db/SystemKeyspaceTest.java
+++ b/test/unit/org/apache/cassandra/db/SystemKeyspaceTest.java
@@ -17,15 +17,11 @@
  */
 package org.apache.cassandra.db;
 
-import java.io.File;
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
-import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.util.*;
 
-import org.apache.commons.io.FileUtils;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
@@ -35,7 +31,6 @@ import org.apache.cassandra.cql3.QueryProcessor;
 import org.apache.cassandra.cql3.UntypedResultSet;
 import org.apache.cassandra.dht.ByteOrderedPartitioner.BytesToken;
 import org.apache.cassandra.dht.Token;
-import org.apache.cassandra.io.sstable.Descriptor;
 import org.apache.cassandra.utils.ByteBufferUtil;
 import org.apache.cassandra.utils.FBUtilities;
 import org.apache.cassandra.utils.CassandraVersion;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/db/commitlog/CommitLogUpgradeTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/db/commitlog/CommitLogUpgradeTest.java b/test/unit/org/apache/cassandra/db/commitlog/CommitLogUpgradeTest.java
index 1ca9a80..f89f16c 100644
--- a/test/unit/org/apache/cassandra/db/commitlog/CommitLogUpgradeTest.java
+++ b/test/unit/org/apache/cassandra/db/commitlog/CommitLogUpgradeTest.java
@@ -51,7 +51,6 @@ import org.apache.cassandra.schema.Tables;
 import org.apache.cassandra.security.EncryptionContextGenerator;
 import org.apache.cassandra.utils.JVMStabilityInspector;
 import org.apache.cassandra.utils.KillerForTests;
-import org.apache.cassandra.db.commitlog.CommitLogReplayer.CommitLogReplayException;
 
 /**
  * Note: if you are looking to create new test cases for this test, check out

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/gms/PendingRangeCalculatorServiceTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/gms/PendingRangeCalculatorServiceTest.java b/test/unit/org/apache/cassandra/gms/PendingRangeCalculatorServiceTest.java
index 90bbf1d..0939db0 100644
--- a/test/unit/org/apache/cassandra/gms/PendingRangeCalculatorServiceTest.java
+++ b/test/unit/org/apache/cassandra/gms/PendingRangeCalculatorServiceTest.java
@@ -32,7 +32,6 @@ import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import org.apache.cassandra.SchemaLoader;
-import org.apache.cassandra.db.Keyspace;
 import org.apache.cassandra.dht.ByteOrderedPartitioner;
 import org.apache.cassandra.dht.Token;
 import org.apache.cassandra.exceptions.ConfigurationException;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/hints/AlteredHints.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/hints/AlteredHints.java b/test/unit/org/apache/cassandra/hints/AlteredHints.java
index 6cc507b..9b8e32f 100644
--- a/test/unit/org/apache/cassandra/hints/AlteredHints.java
+++ b/test/unit/org/apache/cassandra/hints/AlteredHints.java
@@ -33,7 +33,6 @@ import org.junit.BeforeClass;
 
 import org.apache.cassandra.SchemaLoader;
 import org.apache.cassandra.schema.TableMetadata;
-import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.schema.Schema;
 import org.apache.cassandra.db.Mutation;
 import org.apache.cassandra.db.RowUpdateBuilder;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/hints/HintsBufferPoolTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/hints/HintsBufferPoolTest.java b/test/unit/org/apache/cassandra/hints/HintsBufferPoolTest.java
index 7c8d0be..1374d80 100644
--- a/test/unit/org/apache/cassandra/hints/HintsBufferPoolTest.java
+++ b/test/unit/org/apache/cassandra/hints/HintsBufferPoolTest.java
@@ -28,7 +28,6 @@ import com.google.common.collect.ImmutableList;
 
 import static junit.framework.Assert.*;
 
-import java.lang.Thread.State;
 import java.util.Queue;
 import java.util.UUID;
 import java.util.concurrent.ConcurrentLinkedQueue;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/index/internal/CustomCassandraIndex.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/index/internal/CustomCassandraIndex.java b/test/unit/org/apache/cassandra/index/internal/CustomCassandraIndex.java
index 1f1d8b9..4194ec5 100644
--- a/test/unit/org/apache/cassandra/index/internal/CustomCassandraIndex.java
+++ b/test/unit/org/apache/cassandra/index/internal/CustomCassandraIndex.java
@@ -33,7 +33,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import org.apache.cassandra.schema.ColumnMetadata;
-import org.apache.cassandra.schema.Schema;
 import org.apache.cassandra.schema.TableMetadata;
 import org.apache.cassandra.schema.TableMetadataRef;
 import org.apache.cassandra.cql3.Operator;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/io/compress/CompressedRandomAccessReaderTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/io/compress/CompressedRandomAccessReaderTest.java b/test/unit/org/apache/cassandra/io/compress/CompressedRandomAccessReaderTest.java
index 6359566..ceba912 100644
--- a/test/unit/org/apache/cassandra/io/compress/CompressedRandomAccessReaderTest.java
+++ b/test/unit/org/apache/cassandra/io/compress/CompressedRandomAccessReaderTest.java
@@ -35,7 +35,6 @@ import org.apache.cassandra.io.sstable.CorruptSSTableException;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;
 import org.apache.cassandra.io.util.*;
 import org.apache.cassandra.schema.CompressionParams;
-import org.apache.cassandra.utils.ChecksumType;
 import org.apache.cassandra.utils.SyncUtil;
 
 import static org.junit.Assert.assertEquals;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/io/compress/CompressedSequentialWriterTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/io/compress/CompressedSequentialWriterTest.java b/test/unit/org/apache/cassandra/io/compress/CompressedSequentialWriterTest.java
index ce95d0d..b5bf161 100644
--- a/test/unit/org/apache/cassandra/io/compress/CompressedSequentialWriterTest.java
+++ b/test/unit/org/apache/cassandra/io/compress/CompressedSequentialWriterTest.java
@@ -41,7 +41,6 @@ import org.apache.cassandra.db.marshal.UTF8Type;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;
 import org.apache.cassandra.io.util.*;
 import org.apache.cassandra.schema.CompressionParams;
-import org.apache.cassandra.utils.ChecksumType;
 
 public class CompressedSequentialWriterTest extends SequentialWriterTest
 {

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/io/sstable/CQLSSTableWriterClientTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/io/sstable/CQLSSTableWriterClientTest.java b/test/unit/org/apache/cassandra/io/sstable/CQLSSTableWriterClientTest.java
index 273c400..61ac017 100644
--- a/test/unit/org/apache/cassandra/io/sstable/CQLSSTableWriterClientTest.java
+++ b/test/unit/org/apache/cassandra/io/sstable/CQLSSTableWriterClientTest.java
@@ -23,7 +23,6 @@ import java.io.IOException;
 
 import com.google.common.io.Files;
 import org.junit.After;
-import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/io/util/MmappedRegionsTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/io/util/MmappedRegionsTest.java b/test/unit/org/apache/cassandra/io/util/MmappedRegionsTest.java
index f6e97fb..5051230 100644
--- a/test/unit/org/apache/cassandra/io/util/MmappedRegionsTest.java
+++ b/test/unit/org/apache/cassandra/io/util/MmappedRegionsTest.java
@@ -37,7 +37,6 @@ import org.apache.cassandra.io.compress.CompressedSequentialWriter;
 import org.apache.cassandra.io.compress.CompressionMetadata;
 import org.apache.cassandra.io.sstable.metadata.MetadataCollector;
 import org.apache.cassandra.schema.CompressionParams;
-import org.apache.cassandra.utils.ChecksumType;
 
 import static junit.framework.Assert.assertNull;
 import static org.junit.Assert.assertEquals;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/net/RateBasedBackPressureTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/net/RateBasedBackPressureTest.java b/test/unit/org/apache/cassandra/net/RateBasedBackPressureTest.java
index b94b6ee..93fe32e 100644
--- a/test/unit/org/apache/cassandra/net/RateBasedBackPressureTest.java
+++ b/test/unit/org/apache/cassandra/net/RateBasedBackPressureTest.java
@@ -27,7 +27,6 @@ import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Sets;
 import com.google.common.util.concurrent.RateLimiter;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import org.apache.cassandra.utils.TestTimeSource;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/service/SerializationsTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/service/SerializationsTest.java b/test/unit/org/apache/cassandra/service/SerializationsTest.java
index 4f3c80e..66fdeec 100644
--- a/test/unit/org/apache/cassandra/service/SerializationsTest.java
+++ b/test/unit/org/apache/cassandra/service/SerializationsTest.java
@@ -39,7 +39,6 @@ import org.apache.cassandra.dht.Token;
 import org.apache.cassandra.io.util.DataInputPlus.DataInputStreamPlus;
 import org.apache.cassandra.io.util.DataOutputStreamPlus;
 import org.apache.cassandra.net.MessageIn;
-import org.apache.cassandra.net.MessagingService;
 import org.apache.cassandra.repair.NodePair;
 import org.apache.cassandra.repair.RepairJobDesc;
 import org.apache.cassandra.repair.Validator;
@@ -69,7 +68,7 @@ public class SerializationsTest extends AbstractSerializationsTester
     {
         partitionerSwitcher.close();
     }
-    
+
     private void testRepairMessageWrite(String fileName, RepairMessage... messages) throws IOException
     {
         try (DataOutputStreamPlus out = getOutput(fileName))

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/streaming/SessionInfoTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/streaming/SessionInfoTest.java b/test/unit/org/apache/cassandra/streaming/SessionInfoTest.java
index ae18be9..bc24979 100644
--- a/test/unit/org/apache/cassandra/streaming/SessionInfoTest.java
+++ b/test/unit/org/apache/cassandra/streaming/SessionInfoTest.java
@@ -21,7 +21,6 @@ import java.net.InetAddress;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.UUID;
 
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/streaming/StreamTransferTaskTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/streaming/StreamTransferTaskTest.java b/test/unit/org/apache/cassandra/streaming/StreamTransferTaskTest.java
index edd9d9c..ffe26a2 100644
--- a/test/unit/org/apache/cassandra/streaming/StreamTransferTaskTest.java
+++ b/test/unit/org/apache/cassandra/streaming/StreamTransferTaskTest.java
@@ -45,7 +45,6 @@ import org.apache.cassandra.schema.TableId;
 import org.apache.cassandra.streaming.messages.OutgoingFileMessage;
 import org.apache.cassandra.utils.FBUtilities;
 import org.apache.cassandra.utils.concurrent.Ref;
-import org.hsqldb.Table;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/transport/DataTypeTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/transport/DataTypeTest.java b/test/unit/org/apache/cassandra/transport/DataTypeTest.java
index 6f086c9..a8b535a 100644
--- a/test/unit/org/apache/cassandra/transport/DataTypeTest.java
+++ b/test/unit/org/apache/cassandra/transport/DataTypeTest.java
@@ -19,9 +19,7 @@
 package org.apache.cassandra.transport;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
-import java.util.Map;
 
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/transport/SerDeserTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/transport/SerDeserTest.java b/test/unit/org/apache/cassandra/transport/SerDeserTest.java
index 1eaa5ac..a1260ba 100644
--- a/test/unit/org/apache/cassandra/transport/SerDeserTest.java
+++ b/test/unit/org/apache/cassandra/transport/SerDeserTest.java
@@ -32,7 +32,6 @@ import org.apache.cassandra.cql3.*;
 import org.apache.cassandra.db.ConsistencyLevel;
 import org.apache.cassandra.db.marshal.*;
 import org.apache.cassandra.serializers.CollectionSerializer;
-import org.apache.cassandra.service.pager.PagingState;
 import org.apache.cassandra.transport.Event.TopologyChange;
 import org.apache.cassandra.transport.Event.SchemaChange;
 import org.apache.cassandra.transport.Event.StatusChange;

http://git-wip-us.apache.org/repos/asf/cassandra/blob/e96ce6d1/test/unit/org/apache/cassandra/utils/CassandraVersionTest.java
----------------------------------------------------------------------
diff --git a/test/unit/org/apache/cassandra/utils/CassandraVersionTest.java b/test/unit/org/apache/cassandra/utils/CassandraVersionTest.java
index da7e266..683d9e4 100644
--- a/test/unit/org/apache/cassandra/utils/CassandraVersionTest.java
+++ b/test/unit/org/apache/cassandra/utils/CassandraVersionTest.java
@@ -23,7 +23,6 @@ import java.util.Arrays;
 import org.junit.Test;
 
 import static org.junit.Assert.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;