Fixes for the checkstyle plugin as without the build breaks on windows.

src/main/java/org/jboss/netty/util/internal/jzlib/Adler32.java

@@ -113,4 +113,8 @@ final class Adler32 {
         }
         return s2 << 16 | s1;
     }
+    
+    private Adler32() {
+        // Utility class
+    }
 }

src/main/java/org/jboss/netty/util/internal/jzlib/CRC32.java

@@ -92,4 +92,8 @@ final class CRC32 {
         crc32 ^= 0xffffffff;
         return crc32;
     }
+    
+    private CRC32() {
+        // Utility class
+    }
 }

src/main/java/org/jboss/netty/util/internal/jzlib/Deflate.java

@@ -96,7 +96,7 @@ final class Deflate {
             "data error", // Z_DATA_ERROR    (-3)
             "insufficient memory", // Z_MEM_ERROR     (-4)
             "buffer error", // Z_BUF_ERROR     (-5)
-            "incompatible version",// Z_VERSION_ERROR (-6)
+            "incompatible version", // Z_VERSION_ERROR (-6)
             "" };
 
     // block not completed, need more input or more output
@@ -342,7 +342,7 @@ final class Deflate {
 
     // Scan a literal or distance tree to determine the frequencies of the codes
     // in the bit length tree.
-    private void scan_tree(short[] tree,// the tree to be scanned
+    private void scan_tree(short[] tree, // the tree to be scanned
             int max_code // and its largest code of non zero frequency
     ) {
         int n; // iterates over all tree elements
@@ -437,7 +437,7 @@ final class Deflate {
 
     // Send a literal or distance tree in compressed form, using the codes in
     // bl_tree.
-    private void send_tree(short[] tree,// the tree to be sent
+    private void send_tree(short[] tree, // the tree to be sent
             int max_code // and its largest code of non zero frequency
     ) {
         int n; // iterates over all tree elements
@@ -493,28 +493,28 @@ final class Deflate {
 
     // Output a byte on the stream.
     // IN assertion: there is enough room in pending_buf.
-    private final void put_byte(byte[] p, int start, int len) {
+    private void put_byte(byte[] p, int start, int len) {
         System.arraycopy(p, start, pending_buf, pending, len);
         pending += len;
     }
 
-    private final void put_byte(byte c) {
+    private void put_byte(byte c) {
         pending_buf[pending ++] = c;
     }
 
-    private final void put_short(int w) {
+    private void put_short(int w) {
         put_byte((byte) w/*&0xff*/);
         put_byte((byte) (w >>> 8));
     }
 
-    private final void putShortMSB(int b) {
+    private void putShortMSB(int b) {
         put_byte((byte) (b >> 8));
         put_byte((byte) b/*&0xff*/);
     }
 
-    private final void send_code(int c, short[] tree) {
+    private void send_code(int c, short[] tree) {
         int c2 = c * 2;
-        send_bits((tree[c2] & 0xffff), (tree[c2 + 1] & 0xffff));
+        send_bits(tree[c2] & 0xffff, tree[c2 + 1] & 0xffff);
     }
 
     private void send_bits(int value, int length) {
@@ -806,7 +806,7 @@ final class Deflate {
             int stored_len, // length of input block
             boolean eof // true if this is the last block for a file
     ) {
-        int opt_lenb, static_lenb;// opt_len and static_len in bytes
+        int opt_lenb, static_lenb; // opt_len and static_len in bytes
         int max_blindex = 0; // index of last bit length code of non zero freq
 
         // Build the Huffman trees unless a stored block is forced

src/main/java/org/jboss/netty/util/internal/jzlib/InfBlocks.java

@@ -61,7 +61,7 @@ final class InfBlocks {
 
     private static final int TYPE = 0; // get type bits (3, including end bit)
     private static final int LENS = 1; // get lengths for stored
-    private static final int STORED = 2;// processing stored block
+    private static final int STORED = 2; // processing stored block
     private static final int TABLE = 3; // get table lengths
     private static final int BTREE = 4; // get bit lengths tree for a dynamic block
     private static final int DTREE = 5; // get length, distance trees for a dynamic block

src/main/java/org/jboss/netty/util/internal/jzlib/InfCodes.java

@@ -71,7 +71,7 @@ final class InfCodes {
     // mode dependent information
     private int len;
     private int[] tree; // pointer into tree
-    private int tree_index = 0;
+    private int tree_index;
     private int need; // bits needed
     private int lit;
     // if EXT or COPY, where and how much

src/main/java/org/jboss/netty/util/internal/jzlib/InfTree.java

@@ -180,8 +180,8 @@ final class InfTree {
             int[] e, // list of extra bits for non-simple codes
             int[] t, // result: starting table
             int[] m, // maximum lookup bits, returns actual
-            int[] hp,// space for trees
-            int[] hn,// hufts used in space
+            int[] hp, // space for trees
+            int[] hn, // hufts used in space
             int[] v // working area: values in order of bit length
     ) {
         // Given a list of code lengths and a maximum table size, make a set of
@@ -437,7 +437,7 @@ final class InfTree {
 
     static int inflate_trees_fixed(int[] bl, //literal desired/actual bit depth
             int[] bd, //distance desired/actual bit depth
-            int[][] tl,//literal/length tree result
+            int[][] tl, //literal/length tree result
             int[][] td //distance tree result
     ) {
         bl[0] = fixed_bl;

src/main/java/org/jboss/netty/util/internal/jzlib/Inflate.java

@@ -76,7 +76,7 @@ final class Inflate {
     private static final int GZIP_FNAME = 21;
     private static final int GZIP_FCOMMENT = 22;
     private static final int GZIP_FHCRC = 23;
-    private static final int GZIP_CRC32= 24;
+    private static final int GZIP_CRC32 = 24;
     private static final int GZIP_ISIZE = 25;
 
     private int mode; // current inflate mode
@@ -305,7 +305,7 @@ final class Inflate {
                     break;
                 } else if (z.istate.wrapperType == WrapperType.ZLIB) {
                     z.istate.mode = CHECK4;
-                } else if (z.istate.wrapperType == WrapperType.GZIP){
+                } else if (z.istate.wrapperType == WrapperType.GZIP) {
                     gzipCRC32 = 0;
                     gzipISize = 0;
                     gzipBytesToRead = 4;

src/main/java/org/jboss/netty/util/internal/jzlib/JZlib.java

@@ -105,4 +105,8 @@ public final class JZlib {
     static enum WrapperType {
         NONE, ZLIB, GZIP, ZLIB_OR_NONE;
     }
+    
+    private JZlib() {
+        // Utility class
+    }
 }