Renamed ChannelBuffer.writePlaceholder to writeNul

src/main/java/org/jboss/netty/buffer/AbstractChannelBuffer.java

@@ -327,7 +327,7 @@ public abstract class AbstractChannelBuffer implements ChannelBuffer {
         return writtenBytes;
     }
 
-    public void writePlaceholder(int length) {
+    public void writeNul(int length) {
         if (length == 0) {
             return;
         }

src/main/java/org/jboss/netty/buffer/ChannelBuffer.java

@@ -465,7 +465,7 @@ public interface ChannelBuffer extends Comparable<ChannelBuffer> {
     void writeBytes(InputStream in, int length) throws IOException;
     int  writeBytes(ScatteringByteChannel in, int length) throws IOException;
 
-    void writePlaceholder(int length);
+    void writeNul(int length);
 
     int indexOf(int fromIndex, int toIndex, byte value);
     int indexOf(int fromIndex, int toIndex, ChannelBufferIndexFinder indexFinder);

src/main/java/org/jboss/netty/buffer/DynamicChannelBuffer.java

@@ -201,9 +201,9 @@ public class DynamicChannelBuffer extends AbstractChannelBuffer {
     }
 
     @Override
-    public void writePlaceholder(int length) {
+    public void writeNul(int length) {
         ensureWritableBytes(length);
-        super.writePlaceholder(length);
+        super.writeNul(length);
     }
 
     public ChannelBuffer duplicate() {

src/main/java/org/jboss/netty/handler/codec/replay/ReplayingDecoderBuffer.java

@@ -453,7 +453,7 @@ class ReplayingDecoderBuffer implements ChannelBuffer {
         reject();
     }
 
-    public void writePlaceholder(int length) {
+    public void writeNul(int length) {
         reject();
     }