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.haproxy.HAProxyProxiedProtocol$AddressFamily extends java.lang.Enum<io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily>
  minor version: 0
  major version: 59
  flags: flags: (0x4031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER, ACC_ANNOTATION
  this_class: io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily
  super_class: java.lang.Enum
{
  public static final io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily AF_UNSPEC;
    descriptor: Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily AF_IPv4;
    descriptor: Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily AF_IPv6;
    descriptor: Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily AF_UNIX;
    descriptor: Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  private static final byte FAMILY_MASK;
    descriptor: B
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: -16

  private final byte byteValue;
    descriptor: B
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private static final io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily[] ENUM$VALUES;
    descriptor: [Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
    flags: (0x101a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=5, locals=0, args_size=0
         0: .line 122
            new io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily
            dup
            ldc "AF_UNSPEC"
            iconst_0
         1: .line 125
            iconst_0
            invokespecial io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.<init>:(Ljava/lang/String;IB)V
            putstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_UNSPEC:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
         2: .line 126
            new io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily
            dup
            ldc "AF_IPv4"
            iconst_1
         3: .line 129
            bipush 16
            invokespecial io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.<init>:(Ljava/lang/String;IB)V
            putstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_IPv4:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
         4: .line 130
            new io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily
            dup
            ldc "AF_IPv6"
            iconst_2
         5: .line 133
            bipush 32
            invokespecial io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.<init>:(Ljava/lang/String;IB)V
            putstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_IPv6:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
         6: .line 134
            new io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily
            dup
            ldc "AF_UNIX"
            iconst_3
         7: .line 137
            bipush 48
            invokespecial io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.<init>:(Ljava/lang/String;IB)V
            putstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_UNIX:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            iconst_4
            anewarray io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily
            dup
            iconst_0
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_UNSPEC:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            aastore
            dup
            iconst_1
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_IPv4:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            aastore
            dup
            iconst_2
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_IPv6:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            aastore
            dup
            iconst_3
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_UNIX:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            aastore
            putstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.ENUM$VALUES:[Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
         8: .line 142
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>(java.lang.String, int, byte);
    descriptor: (Ljava/lang/String;IB)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=4, args_size=4
        start local 0 // io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily this
        start local 3 // byte byteValue
         0: .line 149
            aload 0 /* this */
            aload 1
            iload 2
            invokespecial java.lang.Enum.<init>:(Ljava/lang/String;I)V
         1: .line 150
            aload 0 /* this */
            iload 3 /* byteValue */
            putfield io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.byteValue:B
         2: .line 151
            return
        end local 3 // byte byteValue
        end local 0 // io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            0    3     3  byteValue  B
    MethodParameters:
               Name  Flags
      $enum$name     
      $enum$ordinal  
      byteValue      

  public static io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily valueOf(byte);
    descriptor: (B)Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=2, args_size=1
        start local 0 // byte tpafByte
         0: .line 159
            iload 0 /* tpafByte */
            bipush -16
            iand
            istore 1 /* addressFamily */
        start local 1 // int addressFamily
         1: .line 160
            iload 1 /* addressFamily */
            i2b
            lookupswitch { // 4
                    0: 4
                   16: 2
                   32: 3
                   48: 5
              default: 6
          }
         2: .line 162
      StackMap locals: int
      StackMap stack:
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_IPv4:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            areturn
         3: .line 164
      StackMap locals:
      StackMap stack:
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_IPv6:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            areturn
         4: .line 166
      StackMap locals:
      StackMap stack:
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_UNSPEC:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            areturn
         5: .line 168
      StackMap locals:
      StackMap stack:
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.AF_UNIX:Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            areturn
         6: .line 170
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            new java.lang.StringBuilder
            dup
            ldc "unknown address family: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            iload 1 /* addressFamily */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // int addressFamily
        end local 0 // byte tpafByte
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    7     0       tpafByte  B
            1    7     1  addressFamily  I
    MethodParameters:
          Name  Flags
      tpafByte  

  public byte byteValue();
    descriptor: ()B
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily this
         0: .line 178
            aload 0 /* this */
            getfield io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.byteValue:B
            ireturn
        end local 0 // io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;

  public static io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily[] values();
    descriptor: ()[Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=3, args_size=0
         0: .line 1
            getstatic io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily.ENUM$VALUES:[Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            dup
            astore 0
            iconst_0
            aload 0
            arraylength
            dup
            istore 1
            anewarray io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily
            dup
            astore 2
            iconst_0
            iload 1
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
            aload 2
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily valueOf(java.lang.String);
    descriptor: (Ljava/lang/String;)Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
         0: .line 1
            ldc Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;
            aload 0
            invokestatic java.lang.Enum.valueOf:(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum;
            checkcast io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    MethodParameters:
      Name  Flags
      name  
}
Signature: Ljava/lang/Enum<Lio/netty/handler/codec/haproxy/HAProxyProxiedProtocol$AddressFamily;>;
SourceFile: "HAProxyProxiedProtocol.java"
NestHost: io.netty.handler.codec.haproxy.HAProxyProxiedProtocol
InnerClasses:
  public final AddressFamily = io.netty.handler.codec.haproxy.HAProxyProxiedProtocol$AddressFamily of io.netty.handler.codec.haproxy.HAProxyProxiedProtocol