http://netty.io/netty-all/: Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients. (The Netty Project) 
public final class io.netty.handler.codec.http.HttpServerCodec extends io.netty.channel.CombinedChannelDuplexHandler<io.netty.handler.codec.http.HttpRequestDecoder, io.netty.handler.codec.http.HttpResponseEncoder> implements io.netty.handler.codec.http.HttpServerUpgradeHandler$SourceCodec
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: io.netty.handler.codec.http.HttpServerCodec
  super_class: io.netty.channel.CombinedChannelDuplexHandler
{
  private final java.util.Queue<io.netty.handler.codec.http.HttpMethod> queue;
    descriptor: Ljava/util/Queue;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Queue<Lio/netty/handler/codec/http/HttpMethod;>;

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http.HttpServerCodec this
         0: .line 44
            aload 0 /* this */
            sipush 4096
            sipush 8192
            sipush 8192
            invokespecial io.netty.handler.codec.http.HttpServerCodec.<init>:(III)V
         1: .line 45
            return
        end local 0 // io.netty.handler.codec.http.HttpServerCodec this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/handler/codec/http/HttpServerCodec;

  public void <init>(int, int, int);
    descriptor: (III)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=4, args_size=4
        start local 0 // io.netty.handler.codec.http.HttpServerCodec this
        start local 1 // int maxInitialLineLength
        start local 2 // int maxHeaderSize
        start local 3 // int maxChunkSize
         0: .line 50
            aload 0 /* this */
            invokespecial io.netty.channel.CombinedChannelDuplexHandler.<init>:()V
         1: .line 36
            aload 0 /* this */
            new java.util.ArrayDeque
            dup
            invokespecial java.util.ArrayDeque.<init>:()V
            putfield io.netty.handler.codec.http.HttpServerCodec.queue:Ljava/util/Queue;
         2: .line 51
            aload 0 /* this */
            new io.netty.handler.codec.http.HttpServerCodec$HttpServerRequestDecoder
            dup
            aload 0 /* this */
            iload 1 /* maxInitialLineLength */
            iload 2 /* maxHeaderSize */
            iload 3 /* maxChunkSize */
            invokespecial io.netty.handler.codec.http.HttpServerCodec$HttpServerRequestDecoder.<init>:(Lio/netty/handler/codec/http/HttpServerCodec;III)V
         3: .line 52
            new io.netty.handler.codec.http.HttpServerCodec$HttpServerResponseEncoder
            dup
            aload 0 /* this */
            invokespecial io.netty.handler.codec.http.HttpServerCodec$HttpServerResponseEncoder.<init>:(Lio/netty/handler/codec/http/HttpServerCodec;)V
         4: .line 51
            invokevirtual io.netty.handler.codec.http.HttpServerCodec.init:(Lio/netty/channel/ChannelInboundHandler;Lio/netty/channel/ChannelOutboundHandler;)V
         5: .line 53
            return
        end local 3 // int maxChunkSize
        end local 2 // int maxHeaderSize
        end local 1 // int maxInitialLineLength
        end local 0 // io.netty.handler.codec.http.HttpServerCodec this
      LocalVariableTable:
        Start  End  Slot                  Name  Signature
            0    6     0                  this  Lio/netty/handler/codec/http/HttpServerCodec;
            0    6     1  maxInitialLineLength  I
            0    6     2         maxHeaderSize  I
            0    6     3          maxChunkSize  I
    MethodParameters:
                      Name  Flags
      maxInitialLineLength  
      maxHeaderSize         
      maxChunkSize          

  public void <init>(int, int, int, boolean);
    descriptor: (IIIZ)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=8, locals=5, args_size=5
        start local 0 // io.netty.handler.codec.http.HttpServerCodec this
        start local 1 // int maxInitialLineLength
        start local 2 // int maxHeaderSize
        start local 3 // int maxChunkSize
        start local 4 // boolean validateHeaders
         0: .line 58
            aload 0 /* this */
            invokespecial io.netty.channel.CombinedChannelDuplexHandler.<init>:()V
         1: .line 36
            aload 0 /* this */
            new java.util.ArrayDeque
            dup
            invokespecial java.util.ArrayDeque.<init>:()V
            putfield io.netty.handler.codec.http.HttpServerCodec.queue:Ljava/util/Queue;
         2: .line 59
            aload 0 /* this */
            new io.netty.handler.codec.http.HttpServerCodec$HttpServerRequestDecoder
            dup
            aload 0 /* this */
            iload 1 /* maxInitialLineLength */
            iload 2 /* maxHeaderSize */
            iload 3 /* maxChunkSize */
            iload 4 /* validateHeaders */
            invokespecial io.netty.handler.codec.http.HttpServerCodec$HttpServerRequestDecoder.<init>:(Lio/netty/handler/codec/http/HttpServerCodec;IIIZ)V
         3: .line 60
            new io.netty.handler.codec.http.HttpServerCodec$HttpServerResponseEncoder
            dup
            aload 0 /* this */
            invokespecial io.netty.handler.codec.http.HttpServerCodec$HttpServerResponseEncoder.<init>:(Lio/netty/handler/codec/http/HttpServerCodec;)V
         4: .line 59
            invokevirtual io.netty.handler.codec.http.HttpServerCodec.init:(Lio/netty/channel/ChannelInboundHandler;Lio/netty/channel/ChannelOutboundHandler;)V
         5: .line 61
            return
        end local 4 // boolean validateHeaders
        end local 3 // int maxChunkSize
        end local 2 // int maxHeaderSize
        end local 1 // int maxInitialLineLength
        end local 0 // io.netty.handler.codec.http.HttpServerCodec this
      LocalVariableTable:
        Start  End  Slot                  Name  Signature
            0    6     0                  this  Lio/netty/handler/codec/http/HttpServerCodec;
            0    6     1  maxInitialLineLength  I
            0    6     2         maxHeaderSize  I
            0    6     3          maxChunkSize  I
            0    6     4       validateHeaders  Z
    MethodParameters:
                      Name  Flags
      maxInitialLineLength  
      maxHeaderSize         
      maxChunkSize          
      validateHeaders       

  public void <init>(int, int, int, boolean, int);
    descriptor: (IIIZI)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=9, locals=6, args_size=6
        start local 0 // io.netty.handler.codec.http.HttpServerCodec this
        start local 1 // int maxInitialLineLength
        start local 2 // int maxHeaderSize
        start local 3 // int maxChunkSize
        start local 4 // boolean validateHeaders
        start local 5 // int initialBufferSize
         0: .line 66
            aload 0 /* this */
            invokespecial io.netty.channel.CombinedChannelDuplexHandler.<init>:()V
         1: .line 36
            aload 0 /* this */
            new java.util.ArrayDeque
            dup
            invokespecial java.util.ArrayDeque.<init>:()V
            putfield io.netty.handler.codec.http.HttpServerCodec.queue:Ljava/util/Queue;
         2: .line 68
            aload 0 /* this */
         3: .line 69
            new io.netty.handler.codec.http.HttpServerCodec$HttpServerRequestDecoder
            dup
            aload 0 /* this */
            iload 1 /* maxInitialLineLength */
            iload 2 /* maxHeaderSize */
            iload 3 /* maxChunkSize */
         4: .line 70
            iload 4 /* validateHeaders */
            iload 5 /* initialBufferSize */
         5: .line 69
            invokespecial io.netty.handler.codec.http.HttpServerCodec$HttpServerRequestDecoder.<init>:(Lio/netty/handler/codec/http/HttpServerCodec;IIIZI)V
         6: .line 71
            new io.netty.handler.codec.http.HttpServerCodec$HttpServerResponseEncoder
            dup
            aload 0 /* this */
            invokespecial io.netty.handler.codec.http.HttpServerCodec$HttpServerResponseEncoder.<init>:(Lio/netty/handler/codec/http/HttpServerCodec;)V
         7: .line 68
            invokevirtual io.netty.handler.codec.http.HttpServerCodec.init:(Lio/netty/channel/ChannelInboundHandler;Lio/netty/channel/ChannelOutboundHandler;)V
         8: .line 72
            return
        end local 5 // int initialBufferSize
        end local 4 // boolean validateHeaders
        end local 3 // int maxChunkSize
        end local 2 // int maxHeaderSize
        end local 1 // int maxInitialLineLength
        end local 0 // io.netty.handler.codec.http.HttpServerCodec this
      LocalVariableTable:
        Start  End  Slot                  Name  Signature
            0    9     0                  this  Lio/netty/handler/codec/http/HttpServerCodec;
            0    9     1  maxInitialLineLength  I
            0    9     2         maxHeaderSize  I
            0    9     3          maxChunkSize  I
            0    9     4       validateHeaders  Z
            0    9     5     initialBufferSize  I
    MethodParameters:
                      Name  Flags
      maxInitialLineLength  
      maxHeaderSize         
      maxChunkSize          
      validateHeaders       
      initialBufferSize     

  public void upgradeFrom(io.netty.channel.ChannelHandlerContext);
    descriptor: (Lio/netty/channel/ChannelHandlerContext;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.http.HttpServerCodec this
        start local 1 // io.netty.channel.ChannelHandlerContext ctx
         0: .line 80
            aload 1 /* ctx */
            invokeinterface io.netty.channel.ChannelHandlerContext.pipeline:()Lio/netty/channel/ChannelPipeline;
            aload 0 /* this */
            invokeinterface io.netty.channel.ChannelPipeline.remove:(Lio/netty/channel/ChannelHandler;)Lio/netty/channel/ChannelPipeline;
            pop
         1: .line 81
            return
        end local 1 // io.netty.channel.ChannelHandlerContext ctx
        end local 0 // io.netty.handler.codec.http.HttpServerCodec this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/handler/codec/http/HttpServerCodec;
            0    2     1   ctx  Lio/netty/channel/ChannelHandlerContext;
    MethodParameters:
      Name  Flags
      ctx   
}
Signature: Lio/netty/channel/CombinedChannelDuplexHandler<Lio/netty/handler/codec/http/HttpRequestDecoder;Lio/netty/handler/codec/http/HttpResponseEncoder;>;Lio/netty/handler/codec/http/HttpServerUpgradeHandler$SourceCodec;
SourceFile: "HttpServerCodec.java"
NestMembers:
  io.netty.handler.codec.http.HttpServerCodec$HttpServerRequestDecoder  io.netty.handler.codec.http.HttpServerCodec$HttpServerResponseEncoder
InnerClasses:
  private final HttpServerRequestDecoder = io.netty.handler.codec.http.HttpServerCodec$HttpServerRequestDecoder of io.netty.handler.codec.http.HttpServerCodec
  private final HttpServerResponseEncoder = io.netty.handler.codec.http.HttpServerCodec$HttpServerResponseEncoder of io.netty.handler.codec.http.HttpServerCodec
  public abstract SourceCodec = io.netty.handler.codec.http.HttpServerUpgradeHandler$SourceCodec of io.netty.handler.codec.http.HttpServerUpgradeHandler