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) 
final class io.netty.resolver.dns.NoopDnsQueryLifecycleObserver implements io.netty.resolver.dns.DnsQueryLifecycleObserver
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: io.netty.resolver.dns.NoopDnsQueryLifecycleObserver
  super_class: java.lang.Object
{
  static final io.netty.resolver.dns.NoopDnsQueryLifecycleObserver INSTANCE;
    descriptor: Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 26
            new io.netty.resolver.dns.NoopDnsQueryLifecycleObserver
            dup
            invokespecial io.netty.resolver.dns.NoopDnsQueryLifecycleObserver.<init>:()V
            putstatic io.netty.resolver.dns.NoopDnsQueryLifecycleObserver.INSTANCE:Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
         0: .line 28
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 29
            return
        end local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;

  public void queryWritten(java.net.InetSocketAddress, io.netty.channel.ChannelFuture);
    descriptor: (Ljava/net/InetSocketAddress;Lio/netty/channel/ChannelFuture;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=3, args_size=3
        start local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
        start local 1 // java.net.InetSocketAddress dnsServerAddress
        start local 2 // io.netty.channel.ChannelFuture future
         0: .line 33
            return
        end local 2 // io.netty.channel.ChannelFuture future
        end local 1 // java.net.InetSocketAddress dnsServerAddress
        end local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0              this  Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
            0    1     1  dnsServerAddress  Ljava/net/InetSocketAddress;
            0    1     2            future  Lio/netty/channel/ChannelFuture;
    MethodParameters:
                  Name  Flags
      dnsServerAddress  
      future            

  public void queryCancelled(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=2, args_size=2
        start local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
        start local 1 // int queriesRemaining
         0: .line 37
            return
        end local 1 // int queriesRemaining
        end local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0              this  Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
            0    1     1  queriesRemaining  I
    MethodParameters:
                  Name  Flags
      queriesRemaining  

  public io.netty.resolver.dns.DnsQueryLifecycleObserver queryRedirected(java.util.List<java.net.InetSocketAddress>);
    descriptor: (Ljava/util/List;)Lio/netty/resolver/dns/DnsQueryLifecycleObserver;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
        start local 1 // java.util.List nameServers
         0: .line 41
            aload 0 /* this */
            areturn
        end local 1 // java.util.List nameServers
        end local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    1     0         this  Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
            0    1     1  nameServers  Ljava/util/List<Ljava/net/InetSocketAddress;>;
    Signature: (Ljava/util/List<Ljava/net/InetSocketAddress;>;)Lio/netty/resolver/dns/DnsQueryLifecycleObserver;
    MethodParameters:
             Name  Flags
      nameServers  

  public io.netty.resolver.dns.DnsQueryLifecycleObserver queryCNAMEd(io.netty.handler.codec.dns.DnsQuestion);
    descriptor: (Lio/netty/handler/codec/dns/DnsQuestion;)Lio/netty/resolver/dns/DnsQueryLifecycleObserver;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
        start local 1 // io.netty.handler.codec.dns.DnsQuestion cnameQuestion
         0: .line 46
            aload 0 /* this */
            areturn
        end local 1 // io.netty.handler.codec.dns.DnsQuestion cnameQuestion
        end local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    1     0           this  Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
            0    1     1  cnameQuestion  Lio/netty/handler/codec/dns/DnsQuestion;
    MethodParameters:
               Name  Flags
      cnameQuestion  

  public io.netty.resolver.dns.DnsQueryLifecycleObserver queryNoAnswer(io.netty.handler.codec.dns.DnsResponseCode);
    descriptor: (Lio/netty/handler/codec/dns/DnsResponseCode;)Lio/netty/resolver/dns/DnsQueryLifecycleObserver;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
        start local 1 // io.netty.handler.codec.dns.DnsResponseCode code
         0: .line 51
            aload 0 /* this */
            areturn
        end local 1 // io.netty.handler.codec.dns.DnsResponseCode code
        end local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
            0    1     1  code  Lio/netty/handler/codec/dns/DnsResponseCode;
    MethodParameters:
      Name  Flags
      code  

  public void queryFailed(java.lang.Throwable);
    descriptor: (Ljava/lang/Throwable;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=2, args_size=2
        start local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
        start local 1 // java.lang.Throwable cause
         0: .line 56
            return
        end local 1 // java.lang.Throwable cause
        end local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
            0    1     1  cause  Ljava/lang/Throwable;
    MethodParameters:
       Name  Flags
      cause  

  public void querySucceed();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=1, args_size=1
        start local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
         0: .line 60
            return
        end local 0 // io.netty.resolver.dns.NoopDnsQueryLifecycleObserver this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/resolver/dns/NoopDnsQueryLifecycleObserver;
}
SourceFile: "NoopDnsQueryLifecycleObserver.java"