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.socksx.v5.DefaultSocks5CommandRequest extends io.netty.handler.codec.socksx.v5.AbstractSocks5Message implements io.netty.handler.codec.socksx.v5.Socks5CommandRequest
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest
  super_class: io.netty.handler.codec.socksx.v5.AbstractSocks5Message
{
  private final io.netty.handler.codec.socksx.v5.Socks5CommandType type;
    descriptor: Lio/netty/handler/codec/socksx/v5/Socks5CommandType;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final io.netty.handler.codec.socksx.v5.Socks5AddressType dstAddrType;
    descriptor: Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
    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.v5.Socks5CommandType, io.netty.handler.codec.socksx.v5.Socks5AddressType, java.lang.String, int);
    descriptor: (Lio/netty/handler/codec/socksx/v5/Socks5CommandType;Lio/netty/handler/codec/socksx/v5/Socks5AddressType;Ljava/lang/String;I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=5
        start local 0 // io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest this
        start local 1 // io.netty.handler.codec.socksx.v5.Socks5CommandType type
        start local 2 // io.netty.handler.codec.socksx.v5.Socks5AddressType dstAddrType
        start local 3 // java.lang.String dstAddr
        start local 4 // int dstPort
         0: .line 34
            aload 0 /* this */
            invokespecial io.netty.handler.codec.socksx.v5.AbstractSocks5Message.<init>:()V
         1: .line 37
            aload 1 /* type */
            ifnonnull 3
         2: .line 38
            new java.lang.NullPointerException
            dup
            ldc "type"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 40
      StackMap locals: io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest io.netty.handler.codec.socksx.v5.Socks5CommandType io.netty.handler.codec.socksx.v5.Socks5AddressType java.lang.String int
      StackMap stack:
            aload 2 /* dstAddrType */
            ifnonnull 5
         4: .line 41
            new java.lang.NullPointerException
            dup
            ldc "dstAddrType"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 43
      StackMap locals:
      StackMap stack:
            aload 3 /* dstAddr */
            ifnonnull 7
         6: .line 44
            new java.lang.NullPointerException
            dup
            ldc "dstAddr"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         7: .line 47
      StackMap locals:
      StackMap stack:
            aload 2 /* dstAddrType */
            getstatic io.netty.handler.codec.socksx.v5.Socks5AddressType.IPv4:Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
            if_acmpne 10
         8: .line 48
            aload 3 /* dstAddr */
            invokestatic io.netty.util.NetUtil.isValidIpV4Address:(Ljava/lang/String;)Z
            ifne 17
         9: .line 49
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "dstAddr: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 3 /* 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;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        10: .line 51
      StackMap locals:
      StackMap stack:
            aload 2 /* dstAddrType */
            getstatic io.netty.handler.codec.socksx.v5.Socks5AddressType.DOMAIN:Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
            if_acmpne 14
        11: .line 52
            aload 3 /* dstAddr */
            invokestatic java.net.IDN.toASCII:(Ljava/lang/String;)Ljava/lang/String;
            astore 3 /* dstAddr */
        12: .line 53
            aload 3 /* dstAddr */
            invokevirtual java.lang.String.length:()I
            sipush 255
            if_icmple 17
        13: .line 54
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "dstAddr: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 3 /* dstAddr */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc " (expected: less than 256 chars)"
            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
        14: .line 56
      StackMap locals:
      StackMap stack:
            aload 2 /* dstAddrType */
            getstatic io.netty.handler.codec.socksx.v5.Socks5AddressType.IPv6:Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
            if_acmpne 17
        15: .line 57
            aload 3 /* dstAddr */
            invokestatic io.netty.util.NetUtil.isValidIpV6Address:(Ljava/lang/String;)Z
            ifne 17
        16: .line 58
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "dstAddr: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 3 /* dstAddr */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc " (expected: a valid IPv6 address"
            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
        17: .line 62
      StackMap locals:
      StackMap stack:
            iload 4 /* dstPort */
            iflt 18
            iload 4 /* dstPort */
            ldc 65535
            if_icmple 19
        18: .line 63
      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 4 /* 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
        19: .line 66
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* type */
            putfield io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.type:Lio/netty/handler/codec/socksx/v5/Socks5CommandType;
        20: .line 67
            aload 0 /* this */
            aload 2 /* dstAddrType */
            putfield io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstAddrType:Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
        21: .line 68
            aload 0 /* this */
            aload 3 /* dstAddr */
            putfield io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstAddr:Ljava/lang/String;
        22: .line 69
            aload 0 /* this */
            iload 4 /* dstPort */
            putfield io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstPort:I
        23: .line 70
            return
        end local 4 // int dstPort
        end local 3 // java.lang.String dstAddr
        end local 2 // io.netty.handler.codec.socksx.v5.Socks5AddressType dstAddrType
        end local 1 // io.netty.handler.codec.socksx.v5.Socks5CommandType type
        end local 0 // io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   24     0         this  Lio/netty/handler/codec/socksx/v5/DefaultSocks5CommandRequest;
            0   24     1         type  Lio/netty/handler/codec/socksx/v5/Socks5CommandType;
            0   24     2  dstAddrType  Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
            0   24     3      dstAddr  Ljava/lang/String;
            0   24     4      dstPort  I
    MethodParameters:
             Name  Flags
      type         
      dstAddrType  
      dstAddr      
      dstPort      

  public io.netty.handler.codec.socksx.v5.Socks5CommandType type();
    descriptor: ()Lio/netty/handler/codec/socksx/v5/Socks5CommandType;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest this
         0: .line 74
            aload 0 /* this */
            getfield io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.type:Lio/netty/handler/codec/socksx/v5/Socks5CommandType;
            areturn
        end local 0 // io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/socksx/v5/DefaultSocks5CommandRequest;

  public io.netty.handler.codec.socksx.v5.Socks5AddressType dstAddrType();
    descriptor: ()Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest this
         0: .line 79
            aload 0 /* this */
            getfield io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstAddrType:Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
            areturn
        end local 0 // io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/socksx/v5/DefaultSocks5CommandRequest;

  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.v5.DefaultSocks5CommandRequest this
         0: .line 84
            aload 0 /* this */
            getfield io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstAddr:Ljava/lang/String;
            areturn
        end local 0 // io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/socksx/v5/DefaultSocks5CommandRequest;

  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.v5.DefaultSocks5CommandRequest this
         0: .line 89
            aload 0 /* this */
            getfield io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstPort:I
            ireturn
        end local 0 // io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/socksx/v5/DefaultSocks5CommandRequest;

  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.v5.DefaultSocks5CommandRequest this
         0: .line 94
            new java.lang.StringBuilder
            dup
            sipush 128
            invokespecial java.lang.StringBuilder.<init>:(I)V
            astore 1 /* buf */
        start local 1 // java.lang.StringBuilder buf
         1: .line 95
            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 97
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.decoderResult:()Lio/netty/handler/codec/DecoderResult;
            astore 2 /* decoderResult */
        start local 2 // io.netty.handler.codec.DecoderResult decoderResult
         3: .line 98
            aload 2 /* decoderResult */
            invokevirtual io.netty.handler.codec.DecoderResult.isSuccess:()Z
            ifne 8
         4: .line 99
            aload 1 /* buf */
            ldc "(decoderResult: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         5: .line 100
            aload 1 /* buf */
            aload 2 /* decoderResult */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            pop
         6: .line 101
            aload 1 /* buf */
            ldc ", type: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         7: .line 102
            goto 9
         8: .line 103
      StackMap locals: java.lang.StringBuilder io.netty.handler.codec.DecoderResult
      StackMap stack:
            aload 1 /* buf */
            ldc "(type: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         9: .line 105
      StackMap locals:
      StackMap stack:
            aload 1 /* buf */
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.type:()Lio/netty/handler/codec/socksx/v5/Socks5CommandType;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            pop
        10: .line 106
            aload 1 /* buf */
            ldc ", dstAddrType: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        11: .line 107
            aload 1 /* buf */
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstAddrType:()Lio/netty/handler/codec/socksx/v5/Socks5AddressType;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            pop
        12: .line 108
            aload 1 /* buf */
            ldc ", dstAddr: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        13: .line 109
            aload 1 /* buf */
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstAddr:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        14: .line 110
            aload 1 /* buf */
            ldc ", dstPort: "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        15: .line 111
            aload 1 /* buf */
            aload 0 /* this */
            invokevirtual io.netty.handler.codec.socksx.v5.DefaultSocks5CommandRequest.dstPort:()I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            pop
        16: .line 112
            aload 1 /* buf */
            bipush 41
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
        17: .line 114
            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.v5.DefaultSocks5CommandRequest this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   18     0           this  Lio/netty/handler/codec/socksx/v5/DefaultSocks5CommandRequest;
            1   18     1            buf  Ljava/lang/StringBuilder;
            3   18     2  decoderResult  Lio/netty/handler/codec/DecoderResult;
}
SourceFile: "DefaultSocks5CommandRequest.java"