diff --git a/codec-http/src/main/java/io/netty/handler/codec/http/HttpTransferEncoding.java b/codec-http/src/main/java/io/netty/handler/codec/http/HttpTransferEncoding.java
index 507aa13808..5472014f3d 100644
--- a/codec-http/src/main/java/io/netty/handler/codec/http/HttpTransferEncoding.java
+++ b/codec-http/src/main/java/io/netty/handler/codec/http/HttpTransferEncoding.java
@@ -56,7 +56,7 @@ public enum HttpTransferEncoding {
 
     private final boolean single;
 
-    private HttpTransferEncoding(boolean single) {
+    HttpTransferEncoding(boolean single) {
         this.single = single;
     }
 
diff --git a/codec-http/src/main/java/io/netty/handler/codec/http/multipart/CaseIgnoringComparator.java b/codec-http/src/main/java/io/netty/handler/codec/http/multipart/CaseIgnoringComparator.java
index ef86ef0de1..bcdcfdd91d 100644
--- a/codec-http/src/main/java/io/netty/handler/codec/http/multipart/CaseIgnoringComparator.java
+++ b/codec-http/src/main/java/io/netty/handler/codec/http/multipart/CaseIgnoringComparator.java
@@ -25,7 +25,6 @@ public final class CaseIgnoringComparator implements Comparator<String>, Seriali
     public static final CaseIgnoringComparator INSTANCE = new CaseIgnoringComparator();
 
     private CaseIgnoringComparator() {
-        super();
     }
 
     @Override
diff --git a/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyOrHttpChooser.java b/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyOrHttpChooser.java
index 56212f720a..c6d090f2fa 100644
--- a/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyOrHttpChooser.java
+++ b/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyOrHttpChooser.java
@@ -39,7 +39,7 @@ import io.netty.handler.ssl.SslHandler;
  */
 public abstract class SpdyOrHttpChooser extends ChannelHandlerAdapter implements ChannelInboundByteHandler {
 
-    public static enum SelectedProtocol {
+    public enum SelectedProtocol {
         SpdyVersion2,
         SpdyVersion3,
         HttpVersion1_1,
diff --git a/codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketRequestBuilder.java b/codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketRequestBuilder.java
index 0bec4da3b5..f24030c53d 100644
--- a/codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketRequestBuilder.java
+++ b/codec-http/src/test/java/io/netty/handler/codec/http/websocketx/WebSocketRequestBuilder.java
@@ -76,17 +76,17 @@ public class WebSocketRequestBuilder {
     }
     
     public WebSocketRequestBuilder version13() {
-        this.version = WebSocketVersion.V13;
+        version = WebSocketVersion.V13;
         return this;
     }
     
     public WebSocketRequestBuilder version8() {
-        this.version = WebSocketVersion.V08;
+        version = WebSocketVersion.V08;
         return this;
     }
     
     public WebSocketRequestBuilder version00() {
-        this.version = null;
+        version = null;
         return this;
     }
     
diff --git a/common/src/main/java/io/netty/monitor/MonitorName.java b/common/src/main/java/io/netty/monitor/MonitorName.java
index ec8fb1520a..983dd5106b 100644
--- a/common/src/main/java/io/netty/monitor/MonitorName.java
+++ b/common/src/main/java/io/netty/monitor/MonitorName.java
@@ -139,7 +139,7 @@ public final class MonitorName {
         if (instance.equals(this.instance)) {
             return this;
         }
-        return new MonitorName(this.group, this.type, this.name, instance);
+        return new MonitorName(group, type, name, instance);
     }
 
     /**
@@ -251,7 +251,7 @@ public final class MonitorName {
      */
     @Override
     public String toString() {
-        return this.instance != null ? "Monitor(" + group + "/" + type + "/" + name + "/" + instance + ")" : "Monitor("
+        return instance != null ? "Monitor(" + group + "/" + type + "/" + name + "/" + instance + ")" : "Monitor("
                 + group + "/" + type + "/" + name + ")";
     }
 }
diff --git a/common/src/main/java/io/netty/monitor/MonitorRegistries.java b/common/src/main/java/io/netty/monitor/MonitorRegistries.java
index 863a838e96..5b48666242 100644
--- a/common/src/main/java/io/netty/monitor/MonitorRegistries.java
+++ b/common/src/main/java/io/netty/monitor/MonitorRegistries.java
@@ -127,12 +127,12 @@ public final class MonitorRegistries implements Iterable<MonitorRegistry> {
 
         @Override
         public boolean hasNext() {
-            return this.factories.hasNext();
+            return factories.hasNext();
         }
 
         @Override
         public MonitorRegistry next() {
-            return this.factories.next().newMonitorRegistry();
+            return factories.next().newMonitorRegistry();
         }
 
         @Override
diff --git a/common/src/main/java/io/netty/monitor/spi/MonitorProvider.java b/common/src/main/java/io/netty/monitor/spi/MonitorProvider.java
index a0983a5657..2b205fc2e3 100644
--- a/common/src/main/java/io/netty/monitor/spi/MonitorProvider.java
+++ b/common/src/main/java/io/netty/monitor/spi/MonitorProvider.java
@@ -63,7 +63,7 @@ public final class MonitorProvider implements Serializable, Comparable<MonitorPr
      */
     @Override
     public int compareTo(final MonitorProvider o) {
-        return this.name.compareTo(o.name);
+        return name.compareTo(o.name);
     }
 
     /**
diff --git a/common/src/test/java/io/netty/util/HashedWheelTimerMonitorTest.java b/common/src/test/java/io/netty/util/HashedWheelTimerMonitorTest.java
index 359e0830ce..d900226cf3 100644
--- a/common/src/test/java/io/netty/util/HashedWheelTimerMonitorTest.java
+++ b/common/src/test/java/io/netty/util/HashedWheelTimerMonitorTest.java
@@ -63,12 +63,12 @@ public class HashedWheelTimerMonitorTest {
 
         @Override
         public ValueDistributionMonitor newValueDistributionMonitor(final MonitorName monitorName) {
-            return this.eventDistributionMonitor;
+            return eventDistributionMonitor;
         }
 
         @Override
         public EventRateMonitor newEventRateMonitor(final MonitorName monitorName, final TimeUnit rateUnit) {
-            return this.eventRateMonitor;
+            return eventRateMonitor;
         }
 
         @Override
diff --git a/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerCounterMonitor.java b/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerCounterMonitor.java
index 5c78af932c..7d14b99c8b 100644
--- a/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerCounterMonitor.java
+++ b/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerCounterMonitor.java
@@ -44,7 +44,7 @@ class YammerCounterMonitor implements CounterMonitor {
      */
     @Override
     public void inc() {
-        this.delegate.inc();
+        delegate.inc();
     }
 
     /**
@@ -52,7 +52,7 @@ class YammerCounterMonitor implements CounterMonitor {
      */
     @Override
     public void inc(final long delta) {
-        this.delegate.inc(delta);
+        delegate.inc(delta);
     }
 
     /**
@@ -60,7 +60,7 @@ class YammerCounterMonitor implements CounterMonitor {
      */
     @Override
     public void decr() {
-        this.delegate.dec();
+        delegate.dec();
     }
 
     /**
@@ -68,7 +68,7 @@ class YammerCounterMonitor implements CounterMonitor {
      */
     @Override
     public void decr(final long delta) {
-        this.delegate.dec(delta);
+        delegate.dec(delta);
     }
 
     /**
@@ -76,7 +76,7 @@ class YammerCounterMonitor implements CounterMonitor {
      */
     @Override
     public void reset() {
-        this.delegate.clear();
+        delegate.clear();
     }
 
     /**
diff --git a/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerEventRateMonitor.java b/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerEventRateMonitor.java
index 2e3f0b51e5..95208074ca 100644
--- a/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerEventRateMonitor.java
+++ b/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerEventRateMonitor.java
@@ -45,7 +45,7 @@ class YammerEventRateMonitor implements EventRateMonitor {
      */
     @Override
     public void event() {
-        this.delegate.mark();
+        delegate.mark();
     }
 
     /**
@@ -54,7 +54,7 @@ class YammerEventRateMonitor implements EventRateMonitor {
      */
     @Override
     public void events(final long count) {
-        this.delegate.mark(count);
+        delegate.mark(count);
     }
 
     /**
diff --git a/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerMonitorRegistry.java b/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerMonitorRegistry.java
index b257d82596..08ce4c61b2 100644
--- a/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerMonitorRegistry.java
+++ b/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerMonitorRegistry.java
@@ -68,7 +68,7 @@ public final class YammerMonitorRegistry implements MonitorRegistry {
      */
     @Override
     public ValueDistributionMonitor newValueDistributionMonitor(final MonitorName monitorName) {
-        final Histogram histogram = this.delegate.newHistogram(Utils.toMetricName(monitorName), true);
+        final Histogram histogram = delegate.newHistogram(Utils.toMetricName(monitorName), true);
         return new YammerValueDistributionMonitor(histogram);
     }
 
@@ -80,7 +80,7 @@ public final class YammerMonitorRegistry implements MonitorRegistry {
      */
     @Override
     public EventRateMonitor newEventRateMonitor(final MonitorName monitorName, final TimeUnit rateUnit) {
-        final Meter meter = this.delegate.newMeter(Utils.toMetricName(monitorName), monitorName.getName(), rateUnit);
+        final Meter meter = delegate.newMeter(Utils.toMetricName(monitorName), monitorName.getName(), rateUnit);
         return new YammerEventRateMonitor(meter);
     }
 
@@ -92,7 +92,7 @@ public final class YammerMonitorRegistry implements MonitorRegistry {
      */
     @Override
     public <T> ValueMonitor<T> registerValueMonitor(final MonitorName monitorName, final ValueMonitor<T> valueMonitor) {
-        this.delegate.newGauge(Utils.toMetricName(monitorName), new Gauge<T>() {
+        delegate.newGauge(Utils.toMetricName(monitorName), new Gauge<T>() {
             @Override
             public T value() {
                 return valueMonitor.currentValue();
@@ -108,7 +108,7 @@ public final class YammerMonitorRegistry implements MonitorRegistry {
      */
     @Override
     public CounterMonitor newCounterMonitor(MonitorName monitorName) {
-        final Counter counter = this.delegate.newCounter(Utils.toMetricName(monitorName));
+        final Counter counter = delegate.newCounter(Utils.toMetricName(monitorName));
         return new YammerCounterMonitor(counter);
     }
 
diff --git a/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerValueDistributionMonitor.java b/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerValueDistributionMonitor.java
index f66ea8dac5..9219f39a61 100644
--- a/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerValueDistributionMonitor.java
+++ b/metrics-yammer/src/main/java/io/netty/monitor/yammer/YammerValueDistributionMonitor.java
@@ -44,7 +44,7 @@ final class YammerValueDistributionMonitor implements ValueDistributionMonitor {
      */
     @Override
     public void reset() {
-        this.delegate.clear();
+        delegate.clear();
     }
 
     /**
@@ -52,7 +52,7 @@ final class YammerValueDistributionMonitor implements ValueDistributionMonitor {
      */
     @Override
     public void update(final long value) {
-        this.delegate.update(value);
+        delegate.update(value);
     }
 
     /**
diff --git a/transport/src/main/java/com/sun/nio/sctp/UnsupportedOperatingSystemException.java b/transport/src/main/java/com/sun/nio/sctp/UnsupportedOperatingSystemException.java
index 8cd99f1783..16fb81295f 100644
--- a/transport/src/main/java/com/sun/nio/sctp/UnsupportedOperatingSystemException.java
+++ b/transport/src/main/java/com/sun/nio/sctp/UnsupportedOperatingSystemException.java
@@ -24,7 +24,6 @@ public class UnsupportedOperatingSystemException extends RuntimeException {
     }
 
     public UnsupportedOperatingSystemException() {
-        super();
     }
 
     public UnsupportedOperatingSystemException(String message) {
diff --git a/transport/src/main/java/io/netty/channel/socket/SctpMessage.java b/transport/src/main/java/io/netty/channel/socket/SctpMessage.java
index 139e34f447..1a921d2346 100644
--- a/transport/src/main/java/io/netty/channel/socket/SctpMessage.java
+++ b/transport/src/main/java/io/netty/channel/socket/SctpMessage.java
@@ -45,8 +45,8 @@ public final class SctpMessage {
 
     public SctpMessage(MessageInfo msgInfo, ByteBuf payloadBuffer) {
         this.msgInfo = msgInfo;
-        this.streamIdentifier = msgInfo.streamNumber();
-        this.protocolIdentifier = msgInfo.payloadProtocolID();
+        streamIdentifier = msgInfo.streamNumber();
+        protocolIdentifier = msgInfo.payloadProtocolID();
         this.payloadBuffer = payloadBuffer;
     }
 
diff --git a/transport/src/main/java/io/netty/channel/socket/aio/AioSocketChannel.java b/transport/src/main/java/io/netty/channel/socket/aio/AioSocketChannel.java
index c8c79066a4..1c216ece62 100755
--- a/transport/src/main/java/io/netty/channel/socket/aio/AioSocketChannel.java
+++ b/transport/src/main/java/io/netty/channel/socket/aio/AioSocketChannel.java
@@ -68,7 +68,7 @@ public class AioSocketChannel extends AbstractAioChannel implements SocketChanne
     private final Runnable readTask = new Runnable() {
         @Override
         public void run() {
-            AioSocketChannel.this.beginRead();
+            beginRead();
         }
     };
 
diff --git a/transport/src/main/java/io/netty/channel/socket/nio/NioEventLoop.java b/transport/src/main/java/io/netty/channel/socket/nio/NioEventLoop.java
index 43b88085fc..9e95313290 100644
--- a/transport/src/main/java/io/netty/channel/socket/nio/NioEventLoop.java
+++ b/transport/src/main/java/io/netty/channel/socket/nio/NioEventLoop.java
@@ -132,7 +132,7 @@ public final class NioEventLoop extends SingleThreadEventLoop {
     // selector to the new one
     private Selector recreateSelector() {
         final Selector newSelector = openSelector();
-        final Selector oldSelector = this.selector;
+        final Selector oldSelector = selector;
 
         // Register all channels to the new Selector.
         boolean success = false;
@@ -166,7 +166,7 @@ public final class NioEventLoop extends SingleThreadEventLoop {
         }
 
         logger.info("Selector migration complete.");
-        return this.selector = newSelector;
+        return selector = newSelector;
     }
 
     @Override
diff --git a/transport/src/main/java/io/netty/channel/socket/nio/NioSctpServerChannel.java b/transport/src/main/java/io/netty/channel/socket/nio/NioSctpServerChannel.java
index aaa87e670d..05c62f4cbb 100644
--- a/transport/src/main/java/io/netty/channel/socket/nio/NioSctpServerChannel.java
+++ b/transport/src/main/java/io/netty/channel/socket/nio/NioSctpServerChannel.java
@@ -49,7 +49,7 @@ public class NioSctpServerChannel extends AbstractNioMessageChannel
 
     public NioSctpServerChannel() {
         super(null, null, newSocket(), SelectionKey.OP_ACCEPT);
-        config = new DefaultSctpServerChannelConfig(this.javaChannel());
+        config = new DefaultSctpServerChannelConfig(javaChannel());
     }
 
     @Override