remove unused imports (netty#9287)

Motivation: Some imports are not used Modification: remove unused imports Result: Code cleanup
bxvs888 · Jun 26, 2019 · 9621a5b · 9621a5b
1 parent 6bd8f05
commit 9621a5b
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Showing 45 changed files with 2 additions and 59 deletions.
diff --git a/buffer/src/test/java/io/netty/buffer/ByteBufDerivationTest.java b/buffer/src/test/java/io/netty/buffer/ByteBufDerivationTest.java
@@ -22,7 +22,6 @@
 import java.util.Random;
 
 import static org.hamcrest.Matchers.*;
-import static org.hamcrest.Matchers.sameInstance;
 import static org.junit.Assert.*;
 
 /**

diff --git a/codec-dns/src/main/java/io/netty/handler/codec/dns/DatagramDnsQueryEncoder.java b/codec-dns/src/main/java/io/netty/handler/codec/dns/DatagramDnsQueryEncoder.java
@@ -26,8 +26,6 @@
 import java.net.InetSocketAddress;
 import java.util.List;
 
-import static io.netty.util.internal.ObjectUtil.checkNotNull;
-
 /**
  * Encodes a {@link DatagramDnsQuery} (or an {@link AddressedEnvelope} of {@link DnsQuery}} into a
  * {@link DatagramPacket}.

diff --git a/...-http/src/test/java/io/netty/handler/codec/http/multipart/HttpPostRequestEncoderTest.java b/...-http/src/test/java/io/netty/handler/codec/http/multipart/HttpPostRequestEncoderTest.java
@@ -32,7 +32,6 @@
 
 import java.io.ByteArrayInputStream;
 import java.io.File;
-import java.nio.charset.Charset;
 import java.util.Arrays;
 import java.util.List;
 

diff --git a/...p/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketClientHandshakerTest.java b/...p/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketClientHandshakerTest.java
@@ -32,7 +32,6 @@
 import io.netty.handler.codec.http.HttpRequestEncoder;
 import io.netty.handler.codec.http.HttpResponseDecoder;
 import io.netty.util.CharsetUtil;
-import io.netty.util.internal.PlatformDependent;
 import org.junit.Test;
 
 import java.net.URI;

diff --git a/codec-http2/src/main/java/io/netty/handler/codec/http2/HpackHuffmanDecoder.java b/codec-http2/src/main/java/io/netty/handler/codec/http2/HpackHuffmanDecoder.java
@@ -38,7 +38,6 @@
 import io.netty.util.internal.ThrowableUtil;
 
 import static io.netty.handler.codec.http2.Http2Error.COMPRESSION_ERROR;
-import static io.netty.handler.codec.http2.Http2Exception.connectionError;
 
 final class HpackHuffmanDecoder {
 

diff --git a/codec-http2/src/main/java/io/netty/handler/codec/http2/Http2ServerUpgradeCodec.java b/codec-http2/src/main/java/io/netty/handler/codec/http2/Http2ServerUpgradeCodec.java
@@ -17,7 +17,6 @@
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.ChannelHandler;
-import io.netty.channel.ChannelHandlerAdapter;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.base64.Base64;
 import io.netty.handler.codec.http.FullHttpRequest;
@@ -38,7 +37,6 @@
 import static io.netty.handler.codec.http2.Http2CodecUtil.HTTP_UPGRADE_SETTINGS_HEADER;
 import static io.netty.handler.codec.http2.Http2CodecUtil.writeFrameHeader;
 import static io.netty.handler.codec.http2.Http2FrameTypes.SETTINGS;
-import static io.netty.util.internal.ObjectUtil.checkNotNull;
 
 /**
  * Server-side codec for performing a cleartext upgrade from HTTP/1.x to HTTP/2.

diff --git a/codec-http2/src/test/java/io/netty/handler/codec/http2/DefaultHttp2FrameWriterTest.java b/codec-http2/src/test/java/io/netty/handler/codec/http2/DefaultHttp2FrameWriterTest.java
@@ -37,7 +37,6 @@
 import java.util.Arrays;
 
 import static org.junit.Assert.*;
-import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.*;
 
 /**

diff --git a/codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ClientUpgradeCodecTest.java b/codec-http2/src/test/java/io/netty/handler/codec/http2/Http2ClientUpgradeCodecTest.java
@@ -14,11 +14,9 @@
  */
 package io.netty.handler.codec.http2;
 
-import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
-import io.netty.channel.ChannelInitializer;
 import io.netty.channel.embedded.EmbeddedChannel;
 import io.netty.handler.codec.http.DefaultFullHttpRequest;
 import io.netty.handler.codec.http.FullHttpRequest;

diff --git a/codec-http2/src/test/java/io/netty/handler/codec/http2/Http2MultiplexHandlerTest.java b/codec-http2/src/test/java/io/netty/handler/codec/http2/Http2MultiplexHandlerTest.java
@@ -15,7 +15,6 @@
 package io.netty.handler.codec.http2;
 
 import io.netty.channel.ChannelHandler;
-import org.junit.Ignore;
 
 /**
  * Unit tests for {@link Http2MultiplexHandler}.

diff --git a/codec/src/main/java/io/netty/handler/codec/serialization/CompatibleObjectEncoder.java b/codec/src/main/java/io/netty/handler/codec/serialization/CompatibleObjectEncoder.java
@@ -19,8 +19,6 @@
 import io.netty.buffer.ByteBufOutputStream;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.MessageToByteEncoder;
-import io.netty.util.Attribute;
-import io.netty.util.AttributeKey;
 
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;

diff --git a/codec/src/test/java/io/netty/handler/codec/serialization/CompatibleObjectEncoderTest.java b/codec/src/test/java/io/netty/handler/codec/serialization/CompatibleObjectEncoderTest.java
@@ -26,7 +26,6 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
 
 public class CompatibleObjectEncoderTest {
     @Test

diff --git a/common/src/main/java/io/netty/util/concurrent/DefaultPromise.java b/common/src/main/java/io/netty/util/concurrent/DefaultPromise.java
@@ -19,7 +19,6 @@
 import io.netty.util.internal.PlatformDependent;
 import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.SystemPropertyUtil;
-import io.netty.util.internal.ThrowableUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 

diff --git a/common/src/test/java/io/netty/util/concurrent/PromiseCombinerTest.java b/common/src/test/java/io/netty/util/concurrent/PromiseCombinerTest.java
@@ -19,7 +19,6 @@
 import org.junit.Before;
 import org.junit.Test;
 import org.mockito.Mock;
-import org.mockito.Mockito;
 import org.mockito.MockitoAnnotations;
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;

diff --git a/common/src/test/java/io/netty/util/internal/DefaultPriorityQueueTest.java b/common/src/test/java/io/netty/util/internal/DefaultPriorityQueueTest.java
@@ -15,9 +15,7 @@
  */
 package io.netty.util.internal;
 
-import org.junit.Rule;
 import org.junit.Test;
-import org.junit.rules.ExpectedException;
 
 import java.io.Serializable;
 import java.util.ArrayList;

diff --git a/common/src/test/java/io/netty/util/internal/logging/Slf4JLoggerFactoryTest.java b/common/src/test/java/io/netty/util/internal/logging/Slf4JLoggerFactoryTest.java
@@ -27,7 +27,6 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
-import static org.mockito.ArgumentMatchers.*;
 import static org.mockito.Mockito.*;
 
 public class Slf4JLoggerFactoryTest {

diff --git a/example/src/main/java/io/netty/example/http2/helloworld/frame/server/Http2OrHttpHandler.java b/example/src/main/java/io/netty/example/http2/helloworld/frame/server/Http2OrHttpHandler.java
@@ -18,7 +18,6 @@
 import io.netty.example.http2.helloworld.server.HelloWorldHttp1Handler;
 import io.netty.handler.codec.http.HttpObjectAggregator;
 import io.netty.handler.codec.http.HttpServerCodec;
-import io.netty.handler.codec.http2.Http2FrameCodec;
 import io.netty.handler.codec.http2.Http2FrameCodecBuilder;
 import io.netty.handler.ssl.ApplicationProtocolNames;
 import io.netty.handler.ssl.ApplicationProtocolNegotiationHandler;

diff --git a/handler/src/test/java/io/netty/handler/ssl/ConscryptOpenSslEngineInteropTest.java b/handler/src/test/java/io/netty/handler/ssl/ConscryptOpenSslEngineInteropTest.java
@@ -22,7 +22,7 @@
 import org.junit.runners.Parameterized;
 
 import javax.net.ssl.SSLEngine;
-import javax.net.ssl.SSLException;
+
 import java.security.Provider;
 import java.util.ArrayList;
 import java.util.Collection;

diff --git a/handler/src/test/java/io/netty/handler/ssl/OpenSslJdkSslEngineInteroptTest.java b/handler/src/test/java/io/netty/handler/ssl/OpenSslJdkSslEngineInteroptTest.java
@@ -21,7 +21,7 @@
 import org.junit.Test;
 
 import javax.net.ssl.SSLEngine;
-import javax.net.ssl.SSLException;
+
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
 

diff --git a/handler/src/test/java/io/netty/handler/ssl/PemEncodedTest.java b/handler/src/test/java/io/netty/handler/ssl/PemEncodedTest.java
@@ -26,7 +26,6 @@
 import java.io.FileInputStream;
 import java.security.PrivateKey;
 
-import io.netty.buffer.Unpooled;
 import io.netty.buffer.UnpooledByteBufAllocator;
 import org.junit.Test;
 

diff --git a/handler/src/test/java/io/netty/handler/ssl/SniClientTest.java b/handler/src/test/java/io/netty/handler/ssl/SniClientTest.java
@@ -29,7 +29,6 @@
 import io.netty.handler.ssl.util.SelfSignedCertificate;
 import io.netty.util.Mapping;
 import io.netty.util.ReferenceCountUtil;
-import io.netty.util.ReferenceCounted;
 import io.netty.util.concurrent.Promise;
 import io.netty.util.internal.PlatformDependent;
 import org.junit.Assert;

diff --git a/resolver-dns/src/main/java/io/netty/resolver/dns/DnsAddressResolverGroup.java b/resolver-dns/src/main/java/io/netty/resolver/dns/DnsAddressResolverGroup.java
@@ -18,7 +18,6 @@
 
 import io.netty.channel.ChannelFactory;
 import io.netty.channel.EventLoop;
-import io.netty.channel.ReflectiveChannelFactory;
 import io.netty.channel.socket.DatagramChannel;
 import io.netty.resolver.AddressResolver;
 import io.netty.resolver.AddressResolverGroup;

diff --git a/resolver-dns/src/main/java/io/netty/resolver/dns/NoopAuthoritativeDnsServerCache.java b/resolver-dns/src/main/java/io/netty/resolver/dns/NoopAuthoritativeDnsServerCache.java
@@ -19,8 +19,6 @@
 import io.netty.util.internal.UnstableApi;
 
 import java.net.InetSocketAddress;
-import java.util.Collections;
-import java.util.List;
 
 /**
  * A noop {@link AuthoritativeDnsServerCache} that actually never caches anything.

diff --git a/resolver-dns/src/main/java/io/netty/resolver/dns/ShuffledDnsServerAddressStream.java b/resolver-dns/src/main/java/io/netty/resolver/dns/ShuffledDnsServerAddressStream.java
@@ -21,7 +21,6 @@
 import java.net.InetSocketAddress;
 import java.util.Collections;
 import java.util.List;
-import java.util.Random;
 
 final class ShuffledDnsServerAddressStream implements DnsServerAddressStream {
 

diff --git a/resolver-dns/src/test/java/io/netty/resolver/dns/DefaultAuthoritativeDnsServerCacheTest.java b/resolver-dns/src/test/java/io/netty/resolver/dns/DefaultAuthoritativeDnsServerCacheTest.java
@@ -25,7 +25,6 @@
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.util.Comparator;
-import java.util.List;
 import java.util.concurrent.Callable;
 import java.util.concurrent.TimeUnit;
 

diff --git a/testsuite-http2/src/main/java/io/netty/testsuite/http2/Http2ServerInitializer.java b/testsuite-http2/src/main/java/io/netty/testsuite/http2/Http2ServerInitializer.java
@@ -33,7 +33,6 @@
 import io.netty.handler.codec.http2.CleartextHttp2ServerUpgradeHandler;
 import io.netty.handler.codec.http2.Http2CodecUtil;
 import io.netty.handler.codec.http2.Http2ServerUpgradeCodec;
-import io.netty.handler.ssl.SslContext;
 import io.netty.util.AsciiString;
 import io.netty.util.ReferenceCountUtil;
 

diff --git a/testsuite-native-image/src/main/java/io/netty/testsuite/svm/HttpNativeServer.java b/testsuite-native-image/src/main/java/io/netty/testsuite/svm/HttpNativeServer.java
@@ -23,9 +23,6 @@
 import io.netty.channel.socket.nio.NioServerSocketChannel;
 import io.netty.handler.logging.LogLevel;
 import io.netty.handler.logging.LoggingHandler;
-import io.netty.handler.ssl.SslContext;
-import io.netty.handler.ssl.SslContextBuilder;
-import io.netty.handler.ssl.util.SelfSignedCertificate;
 
 /**
  * An HTTP server that sends back the content of the received HTTP request

diff --git a/testsuite-native-image/src/main/java/io/netty/testsuite/svm/HttpNativeServerInitializer.java b/testsuite-native-image/src/main/java/io/netty/testsuite/svm/HttpNativeServerInitializer.java
@@ -20,7 +20,6 @@
 import io.netty.channel.socket.SocketChannel;
 import io.netty.handler.codec.http.HttpServerCodec;
 import io.netty.handler.codec.http.HttpServerExpectContinueHandler;
-import io.netty.handler.ssl.SslContext;
 
 public class HttpNativeServerInitializer extends ChannelInitializer<SocketChannel> {
 

diff --git a/.../src/main/java/io/netty/testsuite/transport/socket/CompositeBufferGatheringWriteTest.java b/.../src/main/java/io/netty/testsuite/transport/socket/CompositeBufferGatheringWriteTest.java
@@ -27,7 +27,6 @@
 import io.netty.channel.ChannelInboundHandlerAdapter;
 import io.netty.channel.ChannelInitializer;
 import io.netty.channel.ChannelOption;
-import io.netty.channel.socket.nio.NioSocketChannel;
 import io.netty.util.ReferenceCountUtil;
 import org.junit.Test;
 

diff --git a/testsuite/src/main/java/io/netty/testsuite/transport/socket/SocketConnectTest.java b/testsuite/src/main/java/io/netty/testsuite/transport/socket/SocketConnectTest.java
@@ -21,8 +21,6 @@
 import io.netty.channel.ChannelFutureListener;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
-import io.netty.testsuite.util.TestUtils;
-import io.netty.util.NetUtil;
 import io.netty.util.concurrent.ImmediateEventExecutor;
 import io.netty.util.concurrent.Promise;
 import org.junit.Test;

diff --git a/transport-native-epoll/src/main/java/io/netty/channel/epoll/AbstractEpollChannel.java b/transport-native-epoll/src/main/java/io/netty/channel/epoll/AbstractEpollChannel.java
@@ -38,7 +38,6 @@
 import io.netty.channel.unix.Socket;
 import io.netty.channel.unix.UnixChannel;
 import io.netty.util.ReferenceCountUtil;
-import io.netty.util.internal.ThrowableUtil;
 
 import java.io.IOException;
 import java.net.InetSocketAddress;

diff --git a/transport-native-epoll/src/main/java/io/netty/channel/epoll/AbstractEpollStreamChannel.java b/transport-native-epoll/src/main/java/io/netty/channel/epoll/AbstractEpollStreamChannel.java
@@ -37,7 +37,6 @@
 import io.netty.channel.unix.UnixChannelUtil;
 import io.netty.util.internal.PlatformDependent;
 import io.netty.util.internal.StringUtil;
-import io.netty.util.internal.ThrowableUtil;
 import io.netty.util.internal.UnstableApi;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;

diff --git a/transport-native-epoll/src/main/java/io/netty/channel/epoll/LinuxSocket.java b/transport-native-epoll/src/main/java/io/netty/channel/epoll/LinuxSocket.java
@@ -17,7 +17,6 @@
 
 import io.netty.channel.ChannelException;
 import io.netty.channel.DefaultFileRegion;
-import io.netty.channel.socket.DatagramChannelConfig;
 import io.netty.channel.unix.NativeInetAddress;
 import io.netty.channel.unix.PeerCredentials;
 import io.netty.channel.unix.Socket;

diff --git a/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollSpliceTest.java b/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollSpliceTest.java
@@ -27,7 +27,6 @@
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.channel.unix.FileDescriptor;
-import io.netty.testsuite.util.TestUtils;
 import io.netty.util.NetUtil;
 import org.junit.Assert;
 import org.junit.Test;

diff --git a/transport-native-kqueue/src/main/java/io/netty/channel/kqueue/KQueueDatagramChannel.java b/transport-native-kqueue/src/main/java/io/netty/channel/kqueue/KQueueDatagramChannel.java
@@ -42,8 +42,6 @@
 import java.net.SocketAddress;
 import java.net.SocketException;
 import java.nio.ByteBuffer;
-import java.util.ArrayList;
-import java.util.List;
 
 import static io.netty.channel.kqueue.BsdSocket.newSocketDgram;
 

diff --git a/...-native-kqueue/src/main/java/io/netty/channel/kqueue/KQueueDomainSocketChannelConfig.java b/...-native-kqueue/src/main/java/io/netty/channel/kqueue/KQueueDomainSocketChannelConfig.java
@@ -27,7 +27,6 @@
 
 import java.util.Map;
 
-import static io.netty.channel.ChannelOption.ALLOW_HALF_CLOSURE;
 import static io.netty.channel.unix.UnixChannelOption.*;
 
 @UnstableApi

diff --git a/...sport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueETSocketAutoReadTest.java b/...sport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueETSocketAutoReadTest.java
@@ -17,7 +17,6 @@
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.bootstrap.ServerBootstrap;
-import io.netty.buffer.ByteBufAllocator;
 import io.netty.testsuite.transport.TestsuitePermutation;
 import io.netty.testsuite.transport.socket.SocketAutoReadTest;
 

diff --git a/...ive-kqueue/src/test/java/io/netty/channel/kqueue/KQueueETSocketExceptionHandlingTest.java b/...ive-kqueue/src/test/java/io/netty/channel/kqueue/KQueueETSocketExceptionHandlingTest.java
@@ -17,7 +17,6 @@
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.bootstrap.ServerBootstrap;
-import io.netty.buffer.ByteBufAllocator;
 import io.netty.testsuite.transport.TestsuitePermutation;
 import io.netty.testsuite.transport.socket.SocketExceptionHandlingTest;
 

diff --git a/...rt-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueETSocketReadPendingTest.java b/...rt-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueETSocketReadPendingTest.java
@@ -17,7 +17,6 @@
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.bootstrap.ServerBootstrap;
-import io.netty.buffer.ByteBufAllocator;
 import io.netty.testsuite.transport.TestsuitePermutation;
 import io.netty.testsuite.transport.socket.SocketReadPendingTest;
 

diff --git a/...ative-kqueue/src/test/java/io/netty/channel/kqueue/KQueueSocketConnectionAttemptTest.java b/...ative-kqueue/src/test/java/io/netty/channel/kqueue/KQueueSocketConnectionAttemptTest.java
@@ -16,13 +16,9 @@
 package io.netty.channel.kqueue;
 
 import io.netty.bootstrap.Bootstrap;
-import io.netty.channel.Channel;
-import io.netty.channel.ChannelInitializer;
 import io.netty.testsuite.transport.TestsuitePermutation;
 import io.netty.testsuite.transport.socket.SocketConnectionAttemptTest;
-import org.junit.Test;
 
-import java.net.InetSocketAddress;
 import java.util.List;
 
 public class KQueueSocketConnectionAttemptTest extends SocketConnectionAttemptTest {

diff --git a/transport/src/main/java/io/netty/channel/CoalescingBufferQueue.java b/transport/src/main/java/io/netty/channel/CoalescingBufferQueue.java
@@ -19,7 +19,6 @@
 import io.netty.buffer.CompositeByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.util.internal.ObjectUtil;
-import io.netty.util.internal.PlatformDependent;
 
 /**
  * A FIFO queue of bytes where producers add bytes by repeatedly adding {@link ByteBuf} and consumers take bytes in

diff --git a/transport/src/main/java/io/netty/channel/MultithreadEventLoopGroup.java b/transport/src/main/java/io/netty/channel/MultithreadEventLoopGroup.java
@@ -23,7 +23,6 @@
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 
-import java.util.Queue;
 import java.util.concurrent.Executor;
 import java.util.concurrent.ThreadFactory;
 

diff --git a/transport/src/main/java/io/netty/channel/PendingWriteQueue.java b/transport/src/main/java/io/netty/channel/PendingWriteQueue.java
@@ -18,7 +18,6 @@
 import io.netty.util.Recycler;
 import io.netty.util.ReferenceCountUtil;
 import io.netty.util.concurrent.PromiseCombiner;
-import io.netty.util.internal.ObjectUtil;
 import io.netty.util.internal.SystemPropertyUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;

diff --git a/transport/src/main/java/io/netty/channel/socket/nio/NioDatagramChannel.java b/transport/src/main/java/io/netty/channel/socket/nio/NioDatagramChannel.java
@@ -33,7 +33,6 @@
 import io.netty.util.internal.SocketUtils;
 import io.netty.util.internal.PlatformDependent;
 import io.netty.util.internal.StringUtil;
-import io.netty.util.internal.UnstableApi;
 
 import java.io.IOException;
 import java.net.InetAddress;

diff --git a/transport/src/test/java/io/netty/channel/DelegatingChannelPromiseNotifierTest.java b/transport/src/test/java/io/netty/channel/DelegatingChannelPromiseNotifierTest.java
@@ -20,8 +20,6 @@
 import org.junit.Test;
 import org.mockito.Mockito;
 
-import static org.junit.Assert.*;
-
 public class DelegatingChannelPromiseNotifierTest {
     @Test
     public void varargsNotifiersAllowed() {

diff --git a/transport/src/test/java/io/netty/channel/socket/nio/NioServerSocketChannelTest.java b/transport/src/test/java/io/netty/channel/socket/nio/NioServerSocketChannelTest.java
@@ -16,7 +16,6 @@
 package io.netty.channel.socket.nio;
 
 import io.netty.channel.Channel;
-import io.netty.channel.ChannelFuture;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.nio.NioEventLoopGroup;
 import org.junit.Assert;