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 class io.netty.handler.codec.http.DefaultHttpResponse extends io.netty.handler.codec.http.DefaultHttpMessage implements io.netty.handler.codec.http.HttpResponse
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.netty.handler.codec.http.DefaultHttpResponse
  super_class: io.netty.handler.codec.http.DefaultHttpMessage
{
  private io.netty.handler.codec.http.HttpResponseStatus status;
    descriptor: Lio/netty/handler/codec/http/HttpResponseStatus;
    flags: (0x0002) ACC_PRIVATE

  public void <init>(io.netty.handler.codec.http.HttpVersion, io.netty.handler.codec.http.HttpResponseStatus);
    descriptor: (Lio/netty/handler/codec/http/HttpVersion;Lio/netty/handler/codec/http/HttpResponseStatus;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
        start local 1 // io.netty.handler.codec.http.HttpVersion version
        start local 2 // io.netty.handler.codec.http.HttpResponseStatus status
         0: .line 34
            aload 0 /* this */
            aload 1 /* version */
            aload 2 /* status */
            iconst_1
            iconst_0
            invokespecial io.netty.handler.codec.http.DefaultHttpResponse.<init>:(Lio/netty/handler/codec/http/HttpVersion;Lio/netty/handler/codec/http/HttpResponseStatus;ZZ)V
         1: .line 35
            return
        end local 2 // io.netty.handler.codec.http.HttpResponseStatus status
        end local 1 // io.netty.handler.codec.http.HttpVersion version
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Lio/netty/handler/codec/http/DefaultHttpResponse;
            0    2     1  version  Lio/netty/handler/codec/http/HttpVersion;
            0    2     2   status  Lio/netty/handler/codec/http/HttpResponseStatus;
    MethodParameters:
         Name  Flags
      version  
      status   

  public void <init>(io.netty.handler.codec.http.HttpVersion, io.netty.handler.codec.http.HttpResponseStatus, boolean);
    descriptor: (Lio/netty/handler/codec/http/HttpVersion;Lio/netty/handler/codec/http/HttpResponseStatus;Z)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=4
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
        start local 1 // io.netty.handler.codec.http.HttpVersion version
        start local 2 // io.netty.handler.codec.http.HttpResponseStatus status
        start local 3 // boolean validateHeaders
         0: .line 45
            aload 0 /* this */
            aload 1 /* version */
            aload 2 /* status */
            iload 3 /* validateHeaders */
            iconst_0
            invokespecial io.netty.handler.codec.http.DefaultHttpResponse.<init>:(Lio/netty/handler/codec/http/HttpVersion;Lio/netty/handler/codec/http/HttpResponseStatus;ZZ)V
         1: .line 46
            return
        end local 3 // boolean validateHeaders
        end local 2 // io.netty.handler.codec.http.HttpResponseStatus status
        end local 1 // io.netty.handler.codec.http.HttpVersion version
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    2     0             this  Lio/netty/handler/codec/http/DefaultHttpResponse;
            0    2     1          version  Lio/netty/handler/codec/http/HttpVersion;
            0    2     2           status  Lio/netty/handler/codec/http/HttpResponseStatus;
            0    2     3  validateHeaders  Z
    MethodParameters:
                 Name  Flags
      version          
      status           
      validateHeaders  

  public void <init>(io.netty.handler.codec.http.HttpVersion, io.netty.handler.codec.http.HttpResponseStatus, boolean, boolean);
    descriptor: (Lio/netty/handler/codec/http/HttpVersion;Lio/netty/handler/codec/http/HttpResponseStatus;ZZ)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=5
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
        start local 1 // io.netty.handler.codec.http.HttpVersion version
        start local 2 // io.netty.handler.codec.http.HttpResponseStatus status
        start local 3 // boolean validateHeaders
        start local 4 // boolean singleFieldHeaders
         0: .line 62
            aload 0 /* this */
            aload 1 /* version */
            iload 3 /* validateHeaders */
            iload 4 /* singleFieldHeaders */
            invokespecial io.netty.handler.codec.http.DefaultHttpMessage.<init>:(Lio/netty/handler/codec/http/HttpVersion;ZZ)V
         1: .line 63
            aload 0 /* this */
            aload 2 /* status */
            ldc "status"
            invokestatic io.netty.util.internal.ObjectUtil.checkNotNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            checkcast io.netty.handler.codec.http.HttpResponseStatus
            putfield io.netty.handler.codec.http.DefaultHttpResponse.status:Lio/netty/handler/codec/http/HttpResponseStatus;
         2: .line 64
            return
        end local 4 // boolean singleFieldHeaders
        end local 3 // boolean validateHeaders
        end local 2 // io.netty.handler.codec.http.HttpResponseStatus status
        end local 1 // io.netty.handler.codec.http.HttpVersion version
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0    3     0                this  Lio/netty/handler/codec/http/DefaultHttpResponse;
            0    3     1             version  Lio/netty/handler/codec/http/HttpVersion;
            0    3     2              status  Lio/netty/handler/codec/http/HttpResponseStatus;
            0    3     3     validateHeaders  Z
            0    3     4  singleFieldHeaders  Z
    MethodParameters:
                    Name  Flags
      version             
      status              
      validateHeaders     
      singleFieldHeaders  

  public void <init>(io.netty.handler.codec.http.HttpVersion, io.netty.handler.codec.http.HttpResponseStatus, io.netty.handler.codec.http.HttpHeaders);
    descriptor: (Lio/netty/handler/codec/http/HttpVersion;Lio/netty/handler/codec/http/HttpResponseStatus;Lio/netty/handler/codec/http/HttpHeaders;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=4
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
        start local 1 // io.netty.handler.codec.http.HttpVersion version
        start local 2 // io.netty.handler.codec.http.HttpResponseStatus status
        start local 3 // io.netty.handler.codec.http.HttpHeaders headers
         0: .line 74
            aload 0 /* this */
            aload 1 /* version */
            aload 3 /* headers */
            invokespecial io.netty.handler.codec.http.DefaultHttpMessage.<init>:(Lio/netty/handler/codec/http/HttpVersion;Lio/netty/handler/codec/http/HttpHeaders;)V
         1: .line 75
            aload 0 /* this */
            aload 2 /* status */
            ldc "status"
            invokestatic io.netty.util.internal.ObjectUtil.checkNotNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            checkcast io.netty.handler.codec.http.HttpResponseStatus
            putfield io.netty.handler.codec.http.DefaultHttpResponse.status:Lio/netty/handler/codec/http/HttpResponseStatus;
         2: .line 76
            return
        end local 3 // io.netty.handler.codec.http.HttpHeaders headers
        end local 2 // io.netty.handler.codec.http.HttpResponseStatus status
        end local 1 // io.netty.handler.codec.http.HttpVersion version
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0     this  Lio/netty/handler/codec/http/DefaultHttpResponse;
            0    3     1  version  Lio/netty/handler/codec/http/HttpVersion;
            0    3     2   status  Lio/netty/handler/codec/http/HttpResponseStatus;
            0    3     3  headers  Lio/netty/handler/codec/http/HttpHeaders;
    MethodParameters:
         Name  Flags
      version  
      status   
      headers  

  public io.netty.handler.codec.http.HttpResponseStatus getStatus();
    descriptor: ()Lio/netty/handler/codec/http/HttpResponseStatus;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
         0: .line 81
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.http.DefaultHttpResponse.status:()Lio/netty/handler/codec/http/HttpResponseStatus;
            areturn
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http/DefaultHttpResponse;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()

  public io.netty.handler.codec.http.HttpResponseStatus status();
    descriptor: ()Lio/netty/handler/codec/http/HttpResponseStatus;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
         0: .line 86
            aload 0 /* this */
            getfield io.netty.handler.codec.http.DefaultHttpResponse.status:Lio/netty/handler/codec/http/HttpResponseStatus;
            areturn
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http/DefaultHttpResponse;

  public io.netty.handler.codec.http.HttpResponse setStatus(io.netty.handler.codec.http.HttpResponseStatus);
    descriptor: (Lio/netty/handler/codec/http/HttpResponseStatus;)Lio/netty/handler/codec/http/HttpResponse;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
        start local 1 // io.netty.handler.codec.http.HttpResponseStatus status
         0: .line 91
            aload 1 /* status */
            ifnonnull 2
         1: .line 92
            new java.lang.NullPointerException
            dup
            ldc "status"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 94
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* status */
            putfield io.netty.handler.codec.http.DefaultHttpResponse.status:Lio/netty/handler/codec/http/HttpResponseStatus;
         3: .line 95
            aload 0 /* this */
            areturn
        end local 1 // io.netty.handler.codec.http.HttpResponseStatus status
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    4     0    this  Lio/netty/handler/codec/http/DefaultHttpResponse;
            0    4     1  status  Lio/netty/handler/codec/http/HttpResponseStatus;
    MethodParameters:
        Name  Flags
      status  

  public io.netty.handler.codec.http.HttpResponse setProtocolVersion(io.netty.handler.codec.http.HttpVersion);
    descriptor: (Lio/netty/handler/codec/http/HttpVersion;)Lio/netty/handler/codec/http/HttpResponse;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
        start local 1 // io.netty.handler.codec.http.HttpVersion version
         0: .line 100
            aload 0 /* this */
            aload 1 /* version */
            invokespecial io.netty.handler.codec.http.DefaultHttpMessage.setProtocolVersion:(Lio/netty/handler/codec/http/HttpVersion;)Lio/netty/handler/codec/http/HttpMessage;
            pop
         1: .line 101
            aload 0 /* this */
            areturn
        end local 1 // io.netty.handler.codec.http.HttpVersion version
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Lio/netty/handler/codec/http/DefaultHttpResponse;
            0    2     1  version  Lio/netty/handler/codec/http/HttpVersion;
    MethodParameters:
         Name  Flags
      version  

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
         0: .line 106
            new java.lang.StringBuilder
            dup
            sipush 256
            invokespecial java.lang.StringBuilder.<init>:(I)V
            aload 0 /* this */
            invokestatic io.netty.handler.codec.http.HttpMessageUtil.appendResponse:(Ljava/lang/StringBuilder;Lio/netty/handler/codec/http/HttpResponse;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // io.netty.handler.codec.http.DefaultHttpResponse this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/http/DefaultHttpResponse;

  public io.netty.handler.codec.http.HttpMessage setProtocolVersion(io.netty.handler.codec.http.HttpVersion);
    descriptor: (Lio/netty/handler/codec/http/HttpVersion;)Lio/netty/handler/codec/http/HttpMessage;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            invokevirtual io.netty.handler.codec.http.DefaultHttpResponse.setProtocolVersion:(Lio/netty/handler/codec/http/HttpVersion;)Lio/netty/handler/codec/http/HttpResponse;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "DefaultHttpResponse.java"