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.util.concurrent.SucceededFuture<V> extends io.netty.util.concurrent.CompleteFuture<V>
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: io.netty.util.concurrent.SucceededFuture
  super_class: io.netty.util.concurrent.CompleteFuture
{
  private final V result;
    descriptor: Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: TV;

  public void <init>(io.netty.util.concurrent.EventExecutor, );
    descriptor: (Lio/netty/util/concurrent/EventExecutor;Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // io.netty.util.concurrent.SucceededFuture this
        start local 1 // io.netty.util.concurrent.EventExecutor executor
        start local 2 // java.lang.Object result
         0: .line 32
            aload 0 /* this */
            aload 1 /* executor */
            invokespecial io.netty.util.concurrent.CompleteFuture.<init>:(Lio/netty/util/concurrent/EventExecutor;)V
         1: .line 33
            aload 0 /* this */
            aload 2 /* result */
            putfield io.netty.util.concurrent.SucceededFuture.result:Ljava/lang/Object;
         2: .line 34
            return
        end local 2 // java.lang.Object result
        end local 1 // io.netty.util.concurrent.EventExecutor executor
        end local 0 // io.netty.util.concurrent.SucceededFuture this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Lio/netty/util/concurrent/SucceededFuture<TV;>;
            0    3     1  executor  Lio/netty/util/concurrent/EventExecutor;
            0    3     2    result  TV;
    Signature: (Lio/netty/util/concurrent/EventExecutor;TV;)V
    MethodParameters:
          Name  Flags
      executor  
      result    

  public java.lang.Throwable cause();
    descriptor: ()Ljava/lang/Throwable;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.util.concurrent.SucceededFuture this
         0: .line 38
            aconst_null
            areturn
        end local 0 // io.netty.util.concurrent.SucceededFuture this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/util/concurrent/SucceededFuture<TV;>;

  public boolean isSuccess();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.util.concurrent.SucceededFuture this
         0: .line 43
            iconst_1
            ireturn
        end local 0 // io.netty.util.concurrent.SucceededFuture this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/util/concurrent/SucceededFuture<TV;>;

  public V getNow();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.util.concurrent.SucceededFuture this
         0: .line 48
            aload 0 /* this */
            getfield io.netty.util.concurrent.SucceededFuture.result:Ljava/lang/Object;
            areturn
        end local 0 // io.netty.util.concurrent.SucceededFuture this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/util/concurrent/SucceededFuture<TV;>;
    Signature: ()TV;
}
Signature: <V:Ljava/lang/Object;>Lio/netty/util/concurrent/CompleteFuture<TV;>;
SourceFile: "SucceededFuture.java"