Fix a build failure due to a dependency problem / Fix checkstyle errors

handler/pom.xml

@@ -43,7 +43,6 @@
       <groupId>${project.groupId}</groupId>
       <artifactId>netty-codec</artifactId>
       <version>${project.version}</version>
-      <scope>test</scope>
     </dependency>
   </dependencies>
 

handler/src/main/java/io/netty/handler/logging/LoggingHandler.java

@@ -60,7 +60,7 @@ public class LoggingHandler extends ChannelHandlerAdapter<Object, Object> {
             buf.append(i);
             BYTE2HEX[i] = buf.toString();
         }
-        for (;i < 16; i ++) {
+        for (; i < 16; i ++) {
             StringBuilder buf = new StringBuilder(3);
             buf.append(" 0");
             buf.append((char) ('a' + i - 10));

handler/src/main/java/io/netty/handler/ssl/SslHandler.java

@@ -466,7 +466,7 @@ public class SslHandler extends StreamToStreamCodec {
         try {
             ByteBuffer outAppBuf = in.nioBuffer();
 
-            while(in.readable()) {
+            while (in.readable()) {
 
                 int read;
                 int remaining = outAppBuf.remaining();

handler/src/main/java/io/netty/handler/timeout/ReadTimeoutException.java

@@ -19,11 +19,11 @@ package io.netty.handler.timeout;
  * A {@link TimeoutException} raised by {@link ReadTimeoutHandler} when no data
  * was read within a certain period of time.
  */
-public class ReadTimeoutException extends TimeoutException {
+public final class ReadTimeoutException extends TimeoutException {
 
     private static final long serialVersionUID = 169287984113283421L;
 
     public static final ReadTimeoutException INSTANCE = new ReadTimeoutException();
 
-    private ReadTimeoutException() {}
+    private ReadTimeoutException() { }
 }

handler/src/main/java/io/netty/handler/timeout/TimeoutException.java

@@ -25,7 +25,7 @@ public class TimeoutException extends ChannelException {
 
     private static final long serialVersionUID = 4673641882869672533L;
 
-    TimeoutException() {}
+    TimeoutException() { }
 
     @Override
     public Throwable fillInStackTrace() {

handler/src/main/java/io/netty/handler/timeout/WriteTimeoutException.java

@@ -19,11 +19,11 @@ package io.netty.handler.timeout;
  * A {@link TimeoutException} raised by {@link WriteTimeoutHandler} when no data
  * was written within a certain period of time.
  */
-public class WriteTimeoutException extends TimeoutException {
+public final class WriteTimeoutException extends TimeoutException {
 
     private static final long serialVersionUID = -144786655770296065L;
 
     public static final WriteTimeoutException INSTANCE = new WriteTimeoutException();
 
-    private WriteTimeoutException() {}
+    private WriteTimeoutException() { }
 }