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.socksx.v4.DefaultSocks4CommandResponse extends io.netty.handler.codec.socksx.v4.AbstractSocks4Message implements io.netty.handler.codec.socksx.v4.Socks4CommandResponse
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse
  super_class: io.netty.handler.codec.socksx.v4.AbstractSocks4Message
{
  private final io.netty.handler.codec.socksx.v4.Socks4CommandStatus status;
    descriptor: Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.lang.String dstAddr;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int dstPort;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(io.netty.handler.codec.socksx.v4.Socks4CommandStatus);
    descriptor: (Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
        start local 1 // io.netty.handler.codec.socksx.v4.Socks4CommandStatus status
         0: .line 37
            aload 0 /* this */
            aload 1 /* status */
            aconst_null
            iconst_0
            invokespecial io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.<init>:(Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;Ljava/lang/String;I)V
         1: .line 38
            return
        end local 1 // io.netty.handler.codec.socksx.v4.Socks4CommandStatus status
        end local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lio/netty/handler/codec/socksx/v4/DefaultSocks4CommandResponse;
            0    2     1  status  Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;
    MethodParameters:
        Name  Flags
      status  

  public void <init>(io.netty.handler.codec.socksx.v4.Socks4CommandStatus, java.lang.String, int);
    descriptor: (Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;Ljava/lang/String;I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=4
        start local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
        start local 1 // io.netty.handler.codec.socksx.v4.Socks4CommandStatus status
        start local 2 // java.lang.String dstAddr
        start local 3 // int dstPort
         0: .line 47
            aload 0 /* this */
            invokespecial io.netty.handler.codec.socksx.v4.AbstractSocks4Message.<init>:()V
         1: .line 48
            aload 1 /* status */
            ifnonnull 3
         2: .line 49
            new java.lang.NullPointerException
            dup
            ldc "cmdStatus"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 51
      StackMap locals: io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse io.netty.handler.codec.socksx.v4.Socks4CommandStatus java.lang.String int
      StackMap stack:
            aload 2 /* dstAddr */
            ifnull 8
         4: .line 52
            aload 2 /* dstAddr */
            invokestatic io.netty.util.NetUtil.isValidIpV4Address:(Ljava/lang/String;)Z
            ifne 8
         5: .line 53
            new java.lang.IllegalArgumentException
            dup
         6: .line 54
            new java.lang.StringBuilder
            dup
            ldc "dstAddr: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 2 /* dstAddr */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc " (expected: a valid IPv4 address)"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
         7: .line 53
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         8: .line 57
      StackMap locals:
      StackMap stack:
            iload 3 /* dstPort */
            iflt 9
            iload 3 /* dstPort */
            ldc 65535
            if_icmple 10
         9: .line 58
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "dstPort: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 3 /* dstPort */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " (expected: 0~65535)"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        10: .line 61
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* status */
            putfield io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.status:Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;
        11: .line 62
            aload 0 /* this */
            aload 2 /* dstAddr */
            putfield io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.dstAddr:Ljava/lang/String;
        12: .line 63
            aload 0 /* this */
            iload 3 /* dstPort */
            putfield io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.dstPort:I
        13: .line 64
            return
        end local 3 // int dstPort
        end local 2 // java.lang.String dstAddr
        end local 1 // io.netty.handler.codec.socksx.v4.Socks4CommandStatus status
        end local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   14     0     this  Lio/netty/handler/codec/socksx/v4/DefaultSocks4CommandResponse;
            0   14     1   status  Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;
            0   14     2  dstAddr  Ljava/lang/String;
            0   14     3  dstPort  I
    MethodParameters:
         Name  Flags
      status   
      dstAddr  
      dstPort  

  public io.netty.handler.codec.socksx.v4.Socks4CommandStatus status();
    descriptor: ()Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
         0: .line 68
            aload 0 /* this */
            getfield io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.status:Lio/netty/handler/codec/socksx/v4/Socks4CommandStatus;
            areturn
        end local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/socksx/v4/DefaultSocks4CommandResponse;

  public java.lang.String dstAddr();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
         0: .line 73
            aload 0 /* this */
            getfield io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.dstAddr:Ljava/lang/String;
            areturn
        end local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/socksx/v4/DefaultSocks4CommandResponse;

  public int dstPort();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
         0: .line 78
            aload 0 /* this */
            getfield io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.dstPort:I
            ireturn
        end local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/socksx/v4/DefaultSocks4CommandResponse;

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
         0: .line 83
            new java.lang.StringBuilder
            dup
            bipush 96
            invokespecial java.lang.StringBuilder.<init>:(I)V
            astore 1 /* buf */
        start local 1 // java.lang.StringBuilder buf
         1: .line 84
            aload 1 /* buf */
            aload 0 /* this */
            invokestatic io.netty.util.internal.StringUtil.simpleClassName:(Ljava/lang/Object;)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         2: .line 86
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.decoderResult:()Lio/netty/handler/codec/DecoderResult;
            astore 2 /* decoderResult */
        start local 2 // io.netty.handler.codec.DecoderResult decoderResult
         3: .line 87
            aload 2 /* decoderResult */
            invokevirtual io.netty.handler.codec.DecoderResult.isSuccess:()Z
            ifne 8
         4: .line 88
            aload 1 /* buf */
            ldc "(decoderResult: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         5: .line 89
            aload 1 /* buf */
            aload 2 /* decoderResult */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            pop
         6: .line 90
            aload 1 /* buf */
            ldc ", dstAddr: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         7: .line 91
            goto 9
         8: .line 92
      StackMap locals: java.lang.StringBuilder io.netty.handler.codec.DecoderResult
      StackMap stack:
            aload 1 /* buf */
            ldc "(dstAddr: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         9: .line 94
      StackMap locals:
      StackMap stack:
            aload 1 /* buf */
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.dstAddr:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        10: .line 95
            aload 1 /* buf */
            ldc ", dstPort: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        11: .line 96
            aload 1 /* buf */
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse.dstPort:()I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            pop
        12: .line 97
            aload 1 /* buf */
            bipush 41
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
        13: .line 99
            aload 1 /* buf */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 2 // io.netty.handler.codec.DecoderResult decoderResult
        end local 1 // java.lang.StringBuilder buf
        end local 0 // io.netty.handler.codec.socksx.v4.DefaultSocks4CommandResponse this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   14     0           this  Lio/netty/handler/codec/socksx/v4/DefaultSocks4CommandResponse;
            1   14     1            buf  Ljava/lang/StringBuilder;
            3   14     2  decoderResult  Lio/netty/handler/codec/DecoderResult;
}
SourceFile: "DefaultSocks4CommandResponse.java"