Filled in JavaDoc for trivial methods

src/main/java/org/jboss/netty/channel/DefaultChannelEvent.java

@@ -36,6 +36,9 @@ public class DefaultChannelEvent implements ChannelEvent {
     private final Channel channel;
     private final ChannelFuture future;
 
+    /**
+     * Creates a new instance.
+     */
     public DefaultChannelEvent(Channel channel, ChannelFuture future) {
         if (channel == null) {
             throw new NullPointerException("channel");
@@ -55,6 +58,9 @@ public class DefaultChannelEvent implements ChannelEvent {
         return future;
     }
 
+    /**
+     * Returns the {@link String} representation of this event.
+     */
     @Override
     public String toString() {
         return channel.toString();

src/main/java/org/jboss/netty/channel/DefaultChannelStateEvent.java

@@ -37,6 +37,9 @@ public class DefaultChannelStateEvent extends DefaultChannelEvent implements
     private final ChannelState state;
     private final Object value;
 
+    /**
+     * Creates a new instance.
+     */
     public DefaultChannelStateEvent(
             Channel channel, ChannelFuture future,
             ChannelState state, Object value) {

src/main/java/org/jboss/netty/channel/DefaultChildChannelStateEvent.java

@@ -36,6 +36,9 @@ public class DefaultChildChannelStateEvent extends DefaultChannelEvent implement
 
     private final Channel childChannel;
 
+    /**
+     * Creates a new instance.
+     */
     public DefaultChildChannelStateEvent(
             Channel channel, ChannelFuture future, Channel childChannel) {
 

src/main/java/org/jboss/netty/channel/DefaultExceptionEvent.java

@@ -38,6 +38,9 @@ public class DefaultExceptionEvent extends DefaultChannelEvent implements
 
     private final Throwable cause;
 
+    /**
+     * Creates a new instance.
+     */
     public DefaultExceptionEvent(Channel channel, ChannelFuture future, Throwable cause) {
         super(channel, future);
         if (cause == null) {

src/main/java/org/jboss/netty/channel/DefaultMessageEvent.java

@@ -43,6 +43,9 @@ public class DefaultMessageEvent extends DefaultChannelEvent implements
     private final Object message;
     private final SocketAddress remoteAddress;
 
+    /**
+     * Creates a new instance.
+     */
     public DefaultMessageEvent(
             Channel channel, ChannelFuture future,
             Object message, SocketAddress remoteAddress) {

src/main/java/org/jboss/netty/channel/SimpleChannelHandler.java

@@ -65,6 +65,13 @@ public class SimpleChannelHandler implements ChannelUpstreamHandler {
     private static final InternalLogger logger =
         InternalLoggerFactory.getInstance(SimpleChannelHandler.class.getName());
 
+    /**
+     * Creates a new instance.
+     */
+    public SimpleChannelHandler() {
+        super();
+    }
+
     /**
      * {@inheritDoc}  Down-casts the received upstream event into more
      * meaningful sub-type event and calls an appropriate handler method with