Use StringUtil.simpleClassName(..) instead of Class.getSimpleName() where necessary

- Class.getSimpleName() doesn't render anonymous classes very well
- + some minor cleanup

buffer/src/main/java/io/netty/buffer/AbstractByteBuf.java

@@ -18,6 +18,7 @@ package io.netty.buffer;
 import io.netty.util.IllegalReferenceCountException;
 import io.netty.util.ResourceLeakDetector;
 import io.netty.util.internal.PlatformDependent;
+import io.netty.util.internal.StringUtil;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -1086,11 +1087,11 @@ public abstract class AbstractByteBuf extends ByteBuf {
     @Override
     public String toString() {
         if (refCnt() == 0) {
-            return getClass().getSimpleName() + "(freed)";
+            return StringUtil.simpleClassName(this) + "(freed)";
         }
 
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append("(ridx: ");
         buf.append(readerIndex);
         buf.append(", widx: ");

buffer/src/main/java/io/netty/buffer/DefaultByteBufHolder.java

@@ -16,6 +16,7 @@
 package io.netty.buffer;
 
 import io.netty.util.IllegalReferenceCountException;
+import io.netty.util.internal.StringUtil;
 
 /**
  * Default implementation of a {@link ByteBufHolder} that holds it's data in a {@link ByteBuf}.
@@ -79,6 +80,6 @@ public class DefaultByteBufHolder implements ByteBufHolder {
 
     @Override
     public String toString() {
-        return getClass().getSimpleName() + '(' + content().toString() + ')';
+        return StringUtil.simpleClassName(this) + '(' + content().toString() + ')';
     }
 }

buffer/src/main/java/io/netty/buffer/EmptyByteBuf.java

@@ -18,6 +18,7 @@ package io.netty.buffer;
 
 import io.netty.util.internal.EmptyArrays;
 import io.netty.util.internal.PlatformDependent;
+import io.netty.util.internal.StringUtil;
 
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -64,7 +65,7 @@ public final class EmptyByteBuf extends ByteBuf {
 
         this.alloc = alloc;
         this.order = order;
-        str = getClass().getSimpleName() + (order == ByteOrder.BIG_ENDIAN? "BE" : "LE");
+        str = StringUtil.simpleClassName(this) + (order == ByteOrder.BIG_ENDIAN? "BE" : "LE");
     }
 
     @Override

buffer/src/main/java/io/netty/buffer/ReadOnlyByteBufferBuf.java

@@ -16,6 +16,7 @@
 package io.netty.buffer;
 
 import io.netty.util.ResourceLeak;
+import io.netty.util.internal.StringUtil;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -40,7 +41,7 @@ class ReadOnlyByteBufferBuf extends AbstractReferenceCountedByteBuf {
     public ReadOnlyByteBufferBuf(ByteBufAllocator allocator, ByteBuffer buffer) {
         super(buffer.remaining());
         if (!buffer.isReadOnly()) {
-            throw new IllegalArgumentException("must be a readonly buffer: " + buffer.getClass().getSimpleName());
+            throw new IllegalArgumentException("must be a readonly buffer: " + StringUtil.simpleClassName(buffer));
         }
 
         this.allocator = allocator;

codec-http/src/main/java/io/netty/handler/codec/http/DefaultHttpContent.java

@@ -16,6 +16,7 @@
 package io.netty.handler.codec.http;
 
 import io.netty.buffer.ByteBuf;
+import io.netty.util.internal.StringUtil;
 
 /**
  * The default {@link HttpContent} implementation.
@@ -78,6 +79,6 @@ public class DefaultHttpContent extends DefaultHttpObject implements HttpContent
 
     @Override
     public String toString() {
-        return getClass().getSimpleName() + "(data: " + content() + ", getDecoderResult: " + getDecoderResult() + ')';
+        return StringUtil.simpleClassName(this) + "(data: " + content() + ", getDecoderResult: " + getDecoderResult() + ')';
     }
 }

codec-http/src/main/java/io/netty/handler/codec/http/DefaultHttpMessage.java

@@ -50,7 +50,7 @@ public abstract class DefaultHttpMessage extends DefaultHttpObject implements Ht
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append("(version: ");
         buf.append(getProtocolVersion().text());
         buf.append(", keepAlive: ");

codec-http/src/main/java/io/netty/handler/codec/http/DefaultHttpRequest.java

@@ -81,7 +81,7 @@ public class DefaultHttpRequest extends DefaultHttpMessage implements HttpReques
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append(", decodeResult: ");
         buf.append(getDecoderResult());
         buf.append(')');

codec-http/src/main/java/io/netty/handler/codec/http/DefaultHttpResponse.java

@@ -61,7 +61,7 @@ public class DefaultHttpResponse extends DefaultHttpMessage implements HttpRespo
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append("(decodeResult: ");
         buf.append(getDecoderResult());
         buf.append(')');

codec-http/src/main/java/io/netty/handler/codec/http/HttpObjectEncoder.java

@@ -20,6 +20,7 @@ import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.FileRegion;
 import io.netty.handler.codec.MessageToMessageEncoder;
 import io.netty.util.CharsetUtil;
+import io.netty.util.internal.StringUtil;
 
 import java.util.List;
 import java.util.Map;
@@ -60,7 +61,7 @@ public abstract class HttpObjectEncoder<H extends HttpMessage> extends MessageTo
     protected void encode(ChannelHandlerContext ctx, Object msg, List<Object> out) throws Exception {
         if (msg instanceof HttpMessage) {
             if (state != ST_INIT) {
-                throw new IllegalStateException("unexpected message type: " + msg.getClass().getSimpleName());
+                throw new IllegalStateException("unexpected message type: " + StringUtil.simpleClassName(msg));
             }
 
             @SuppressWarnings({ "unchecked", "CastConflictsWithInstanceof" })
@@ -76,7 +77,7 @@ public abstract class HttpObjectEncoder<H extends HttpMessage> extends MessageTo
         }
         if (msg instanceof HttpContent || msg instanceof ByteBuf || msg instanceof FileRegion) {
             if (state == ST_INIT) {
-                throw new IllegalStateException("unexpected message type: " + msg.getClass().getSimpleName());
+                throw new IllegalStateException("unexpected message type: " + StringUtil.simpleClassName(msg));
             }
 
             int contentLength = contentLength(msg);
@@ -148,7 +149,7 @@ public abstract class HttpObjectEncoder<H extends HttpMessage> extends MessageTo
         if (msg instanceof FileRegion) {
             return ((FileRegion) msg).retain();
         }
-        throw new IllegalStateException("unexpected message type: " + msg.getClass().getSimpleName());
+        throw new IllegalStateException("unexpected message type: " + StringUtil.simpleClassName(msg));
     }
 
     private static int contentLength(Object msg) {
@@ -161,7 +162,7 @@ public abstract class HttpObjectEncoder<H extends HttpMessage> extends MessageTo
         if (msg instanceof FileRegion) {
             return (int) ((FileRegion) msg).count();
         }
-        throw new IllegalStateException("unexpected message type: " + msg.getClass().getSimpleName());
+        throw new IllegalStateException("unexpected message type: " + StringUtil.simpleClassName(msg));
     }
 
     private static void encodeHeaders(ByteBuf buf, HttpHeaders headers) {

codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketFrame.java

@@ -17,6 +17,7 @@ package io.netty.handler.codec.http.websocketx;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.DefaultByteBufHolder;
+import io.netty.util.internal.StringUtil;
 
 /**
  * Base class for web socket frames
@@ -67,7 +68,7 @@ public abstract class WebSocketFrame extends DefaultByteBufHolder {
 
     @Override
     public String toString() {
-        return getClass().getSimpleName() + "(data: " + content().toString() + ')';
+        return StringUtil.simpleClassName(this) + "(data: " + content().toString() + ')';
     }
 
     @Override

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdyDataFrame.java

@@ -122,7 +122,7 @@ public class DefaultSpdyDataFrame extends DefaultSpdyStreamFrame implements Spdy
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append("(last: ");
         buf.append(isLast());
         buf.append(')');

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdyGoAwayFrame.java

@@ -84,7 +84,7 @@ public class DefaultSpdyGoAwayFrame implements SpdyGoAwayFrame {
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append(StringUtil.NEWLINE);
         buf.append("--> Last-good-stream-ID = ");
         buf.append(getLastGoodStreamId());

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdyHeadersFrame.java

@@ -80,7 +80,7 @@ public class DefaultSpdyHeadersFrame extends DefaultSpdyStreamFrame
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append("(last: ");
         buf.append(isLast());
         buf.append(')');

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdyPingFrame.java

@@ -47,7 +47,7 @@ public class DefaultSpdyPingFrame implements SpdyPingFrame {
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append(StringUtil.NEWLINE);
         buf.append("--> ID = ");
         buf.append(getId());

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdyRstStreamFrame.java

@@ -72,7 +72,7 @@ public class DefaultSpdyRstStreamFrame extends DefaultSpdyStreamFrame
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append(StringUtil.NEWLINE);
         buf.append("--> Stream-ID = ");
         buf.append(getStreamId());

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdySettingsFrame.java

@@ -153,7 +153,7 @@ public class DefaultSpdySettingsFrame implements SpdySettingsFrame {
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append(StringUtil.NEWLINE);
         appendSettings(buf);
         buf.setLength(buf.length() - StringUtil.NEWLINE.length());

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdySynReplyFrame.java

@@ -53,7 +53,7 @@ public class DefaultSpdySynReplyFrame extends DefaultSpdyHeadersFrame
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append("(last: ");
         buf.append(isLast());
         buf.append(')');

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdySynStreamFrame.java

@@ -104,7 +104,7 @@ public class DefaultSpdySynStreamFrame extends DefaultSpdyHeadersFrame
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append("(last: ");
         buf.append(isLast());
         buf.append("; unidirectional: ");

codec-http/src/main/java/io/netty/handler/codec/spdy/DefaultSpdyWindowUpdateFrame.java

@@ -70,7 +70,7 @@ public class DefaultSpdyWindowUpdateFrame implements SpdyWindowUpdateFrame {
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append(StringUtil.NEWLINE);
         buf.append("--> Stream-ID = ");
         buf.append(getStreamId());

codec/src/main/java/io/netty/handler/codec/ReplayingDecoderBuffer.java

@@ -21,6 +21,7 @@ import io.netty.buffer.ByteBufProcessor;
 import io.netty.buffer.SwappedByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.util.Signal;
+import io.netty.util.internal.StringUtil;
 
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -788,7 +789,7 @@ final class ReplayingDecoderBuffer extends ByteBuf {
 
     @Override
     public String toString() {
-        return getClass().getSimpleName() + '(' +
+        return StringUtil.simpleClassName(this) + '(' +
                "ridx=" +
                readerIndex() +
                ", " +

common/src/main/java/io/netty/util/HashedWheelTimer.java

@@ -16,6 +16,7 @@
 package io.netty.util;
 
 import io.netty.util.internal.PlatformDependent;
+import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 
@@ -541,7 +542,7 @@ public class HashedWheelTimer implements Timer {
             long remaining = deadline - currentTime + startTime;
 
             StringBuilder buf = new StringBuilder(192);
-            buf.append(getClass().getSimpleName());
+            buf.append(StringUtil.simpleClassName(this));
             buf.append('(');
 
             buf.append("deadline: ");

common/src/main/java/io/netty/util/ResourceLeakDetector.java

@@ -17,6 +17,7 @@
 package io.netty.util;
 
 import io.netty.util.internal.PlatformDependent;
+import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.SystemPropertyUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
@@ -70,7 +71,7 @@ public final class ResourceLeakDetector<T> {
     private long leakCheckCnt;
 
     public ResourceLeakDetector(Class<?> resourceType) {
-        this(resourceType.getSimpleName());
+        this(StringUtil.simpleClassName(resourceType));
     }
 
     public ResourceLeakDetector(String resourceType) {
@@ -78,7 +79,7 @@ public final class ResourceLeakDetector<T> {
     }
 
     public ResourceLeakDetector(Class<?> resourceType, int samplingInterval, long maxActive) {
-        this(resourceType.getSimpleName(), samplingInterval, maxActive);
+        this(StringUtil.simpleClassName(resourceType), samplingInterval, maxActive);
     }
 
     public ResourceLeakDetector(String resourceType, int samplingInterval, long maxActive) {

common/src/main/java/io/netty/util/internal/logging/AbstractInternalLogger.java

@@ -15,6 +15,8 @@
  */
 package io.netty.util.internal.logging;
 
+import io.netty.util.internal.StringUtil;
+
 import java.io.ObjectStreamException;
 import java.io.Serializable;
 
@@ -183,6 +185,6 @@ public abstract class AbstractInternalLogger implements InternalLogger, Serializ
 
     @Override
     public String toString() {
-        return getClass().getSimpleName() + '(' + name() + ')';
+        return StringUtil.simpleClassName(this) + '(' + name() + ')';
     }
 }

example/src/main/java/io/netty/example/http/websocketx/autobahn/AutobahnServerHandler.java

@@ -35,6 +35,7 @@ import io.netty.handler.codec.http.websocketx.WebSocketFrame;
 import io.netty.handler.codec.http.websocketx.WebSocketServerHandshaker;
 import io.netty.handler.codec.http.websocketx.WebSocketServerHandshakerFactory;
 import io.netty.util.CharsetUtil;
+import io.netty.util.internal.StringUtil;
 
 import java.util.logging.Level;
 import java.util.logging.Logger;
@@ -97,7 +98,7 @@ public class AutobahnServerHandler extends ChannelInboundHandlerAdapter {
     private void handleWebSocketFrame(ChannelHandlerContext ctx, WebSocketFrame frame) {
         if (logger.isLoggable(Level.FINE)) {
             logger.fine(String.format(
-                    "Channel %s received %s", ctx.channel().hashCode(), frame.getClass().getSimpleName()));
+                    "Channel %s received %s", ctx.channel().hashCode(), StringUtil.simpleClassName(frame)));
         }
 
         if (frame instanceof CloseWebSocketFrame) {

testsuite/src/test/java/io/netty/testsuite/transport/sctp/AbstractSctpTest.java

@@ -22,6 +22,7 @@ import io.netty.channel.ChannelOption;
 import io.netty.testsuite.transport.sctp.SctpTestPermutation.Factory;
 import io.netty.testsuite.util.TestUtils;
 import io.netty.util.NetUtil;
+import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 import org.junit.Rule;
@@ -37,7 +38,7 @@ public abstract class AbstractSctpTest {
 
     private static final List<Entry<Factory<ServerBootstrap>, Factory<Bootstrap>>> COMBO =
             SctpTestPermutation.sctpChannel();
-    private static List<ByteBufAllocator> ALLOCATORS = SctpTestPermutation.allocator();
+    private static final List<ByteBufAllocator> ALLOCATORS = SctpTestPermutation.allocator();
 
     @Rule
     public final TestName testName = new TestName();
@@ -65,7 +66,7 @@ public abstract class AbstractSctpTest {
                 cb.option(ChannelOption.ALLOCATOR, allocator);
                 logger.info(String.format(
                         "Running: %s %d of %d (%s + %s) with %s",
-                        testName.getMethodName(), ++ i, COMBO.size(), sb, cb, allocator.getClass().getSimpleName()));
+                        testName.getMethodName(), ++ i, COMBO.size(), sb, cb, StringUtil.simpleClassName(allocator)));
                 try {
                     Method m = getClass().getDeclaredMethod(
                             testName.getMethodName(), ServerBootstrap.class, Bootstrap.class);

testsuite/src/test/java/io/netty/testsuite/transport/socket/AbstractClientSocketTest.java

@@ -21,6 +21,7 @@ import io.netty.channel.ChannelOption;
 import io.netty.testsuite.transport.socket.SocketTestPermutation.Factory;
 import io.netty.testsuite.util.TestUtils;
 import io.netty.util.NetUtil;
+import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 import org.junit.Rule;
@@ -54,7 +55,7 @@ public abstract class AbstractClientSocketTest {
                 cb.option(ChannelOption.ALLOCATOR, allocator);
                 logger.info(String.format(
                         "Running: %s %d of %d with %s",
-                        testName.getMethodName(), ++ i, COMBO.size(), allocator.getClass().getSimpleName()));
+                        testName.getMethodName(), ++ i, COMBO.size(), StringUtil.simpleClassName(allocator)));
                 try {
                     Method m = getClass().getDeclaredMethod(
                             testName.getMethodName(), Bootstrap.class);

testsuite/src/test/java/io/netty/testsuite/transport/socket/AbstractDatagramTest.java

@@ -21,6 +21,7 @@ import io.netty.channel.ChannelOption;
 import io.netty.testsuite.transport.socket.SocketTestPermutation.Factory;
 import io.netty.testsuite.util.TestUtils;
 import io.netty.util.NetUtil;
+import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 import org.junit.Rule;
@@ -60,7 +61,7 @@ public abstract class AbstractDatagramTest {
                 cb.option(ChannelOption.ALLOCATOR, allocator);
                 logger.info(String.format(
                         "Running: %s %d of %d (%s + %s) with %s",
-                        testName.getMethodName(), ++ i, COMBO.size(), sb, cb, allocator.getClass().getSimpleName()));
+                        testName.getMethodName(), ++ i, COMBO.size(), sb, cb, StringUtil.simpleClassName(allocator)));
                 try {
                     Method m = getClass().getDeclaredMethod(
                             testName.getMethodName(), Bootstrap.class, Bootstrap.class);

testsuite/src/test/java/io/netty/testsuite/transport/socket/AbstractServerSocketTest.java

@@ -21,6 +21,7 @@ import io.netty.channel.ChannelOption;
 import io.netty.testsuite.transport.socket.SocketTestPermutation.Factory;
 import io.netty.testsuite.util.TestUtils;
 import io.netty.util.NetUtil;
+import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 import org.junit.Rule;
@@ -57,7 +58,7 @@ public abstract class AbstractServerSocketTest {
 
                 logger.info(String.format(
                         "Running: %s %d of %d (%s) with %s",
-                        testName.getMethodName(), ++ i, COMBO.size(), sb, allocator.getClass().getSimpleName()));
+                        testName.getMethodName(), ++ i, COMBO.size(), sb, StringUtil.simpleClassName(allocator)));
                 try {
                     Method m = getClass().getDeclaredMethod(
                             testName.getMethodName(), ServerBootstrap.class);

testsuite/src/test/java/io/netty/testsuite/transport/socket/AbstractSocketTest.java

@@ -22,6 +22,7 @@ import io.netty.channel.ChannelOption;
 import io.netty.testsuite.transport.socket.SocketTestPermutation.Factory;
 import io.netty.testsuite.util.TestUtils;
 import io.netty.util.NetUtil;
+import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 import org.junit.Rule;
@@ -67,7 +68,7 @@ public abstract class AbstractSocketTest {
 
                 logger.info(String.format(
                         "Running: %s %d of %d (%s + %s) with %s",
-                        testName.getMethodName(), ++ i, COMBO.size(), sb, cb, allocator.getClass().getSimpleName()));
+                        testName.getMethodName(), ++ i, COMBO.size(), sb, cb, StringUtil.simpleClassName(allocator)));
                 try {
                     Method m = getClass().getDeclaredMethod(
                             testName.getMethodName(), ServerBootstrap.class, Bootstrap.class);

transport/src/main/java/io/netty/bootstrap/AbstractBootstrap.java

@@ -26,6 +26,7 @@ import io.netty.channel.ChannelPromise;
 import io.netty.channel.EventLoop;
 import io.netty.channel.EventLoopGroup;
 import io.netty.util.AttributeKey;
+import io.netty.util.internal.StringUtil;
 
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
@@ -377,11 +378,11 @@ public abstract class AbstractBootstrap<B extends AbstractBootstrap<B, C>, C ext
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append('(');
         if (group != null) {
             buf.append("group: ");
-            buf.append(group.getClass().getSimpleName());
+            buf.append(StringUtil.simpleClassName(group));
             buf.append(", ");
         }
         if (channelFactory != null) {
@@ -440,7 +441,7 @@ public abstract class AbstractBootstrap<B extends AbstractBootstrap<B, C>, C ext
 
         @Override
         public String toString() {
-            return clazz.getSimpleName() + ".class";
+            return StringUtil.simpleClassName(clazz) + ".class";
         }
     }
 }

transport/src/main/java/io/netty/bootstrap/ServerBootstrap.java

@@ -27,6 +27,7 @@ import io.netty.channel.EventLoopGroup;
 import io.netty.channel.ServerChannel;
 import io.netty.channel.socket.SocketChannel;
 import io.netty.util.AttributeKey;
+import io.netty.util.internal.StringUtil;
 import io.netty.util.internal.logging.InternalLogger;
 import io.netty.util.internal.logging.InternalLoggerFactory;
 
@@ -286,7 +287,7 @@ public final class ServerBootstrap extends AbstractBootstrap<ServerBootstrap, Se
         buf.append(", ");
         if (childGroup != null) {
             buf.append("childGroup: ");
-            buf.append(childGroup.getClass().getSimpleName());
+            buf.append(StringUtil.simpleClassName(childGroup));
             buf.append(", ");
         }
         synchronized (childOptions) {

transport/src/main/java/io/netty/channel/DefaultChannelPipeline.java

@@ -700,7 +700,7 @@ final class DefaultChannelPipeline implements ChannelPipeline {
     @Override
     public String toString() {
         StringBuilder buf = new StringBuilder();
-        buf.append(getClass().getSimpleName());
+        buf.append(StringUtil.simpleClassName(this));
         buf.append('{');
         DefaultChannelHandlerContext ctx = head.next;
         for (;;) {

transport/src/main/java/io/netty/channel/group/DefaultChannelGroup.java

@@ -24,6 +24,7 @@ import io.netty.channel.ServerChannel;
 import io.netty.util.ReferenceCountUtil;
 import io.netty.util.concurrent.EventExecutor;
 import io.netty.util.internal.ConcurrentSet;
+import io.netty.util.internal.StringUtil;
 
 import java.util.AbstractSet;
 import java.util.ArrayList;
@@ -342,7 +343,6 @@ public class DefaultChannelGroup extends AbstractSet<Channel> implements Channel
 
     @Override
     public String toString() {
-        return getClass().getSimpleName() +
-               "(name: " + name() + ", size: " + size() + ')';
+        return StringUtil.simpleClassName(this) + "(name: " + name() + ", size: " + size() + ')';
     }
 }

transport/src/main/java/io/netty/channel/local/LocalChannelRegistry.java

@@ -18,6 +18,7 @@ package io.netty.channel.local;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelException;
 import io.netty.util.internal.PlatformDependent;
+import io.netty.util.internal.StringUtil;
 
 import java.net.SocketAddress;
 import java.util.concurrent.ConcurrentMap;
@@ -32,8 +33,7 @@ final class LocalChannelRegistry {
             throw new ChannelException("already bound");
         }
         if (!(localAddress instanceof LocalAddress)) {
-            throw new ChannelException(
-                    "unsupported address type: " + localAddress.getClass().getSimpleName());
+            throw new ChannelException("unsupported address type: " + StringUtil.simpleClassName(localAddress));
         }
 
         LocalAddress addr = (LocalAddress) localAddress;