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.timeout.IdleStateEvent
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.netty.handler.timeout.IdleStateEvent
  super_class: java.lang.Object
{
  public static final io.netty.handler.timeout.IdleStateEvent FIRST_READER_IDLE_STATE_EVENT;
    descriptor: Lio/netty/handler/timeout/IdleStateEvent;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final io.netty.handler.timeout.IdleStateEvent READER_IDLE_STATE_EVENT;
    descriptor: Lio/netty/handler/timeout/IdleStateEvent;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final io.netty.handler.timeout.IdleStateEvent FIRST_WRITER_IDLE_STATE_EVENT;
    descriptor: Lio/netty/handler/timeout/IdleStateEvent;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final io.netty.handler.timeout.IdleStateEvent WRITER_IDLE_STATE_EVENT;
    descriptor: Lio/netty/handler/timeout/IdleStateEvent;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final io.netty.handler.timeout.IdleStateEvent FIRST_ALL_IDLE_STATE_EVENT;
    descriptor: Lio/netty/handler/timeout/IdleStateEvent;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final io.netty.handler.timeout.IdleStateEvent ALL_IDLE_STATE_EVENT;
    descriptor: Lio/netty/handler/timeout/IdleStateEvent;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  private final io.netty.handler.timeout.IdleState state;
    descriptor: Lio/netty/handler/timeout/IdleState;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final boolean first;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=0, args_size=0
         0: .line 25
            new io.netty.handler.timeout.IdleStateEvent
            dup
            getstatic io.netty.handler.timeout.IdleState.READER_IDLE:Lio/netty/handler/timeout/IdleState;
            iconst_1
            invokespecial io.netty.handler.timeout.IdleStateEvent.<init>:(Lio/netty/handler/timeout/IdleState;Z)V
            putstatic io.netty.handler.timeout.IdleStateEvent.FIRST_READER_IDLE_STATE_EVENT:Lio/netty/handler/timeout/IdleStateEvent;
         1: .line 26
            new io.netty.handler.timeout.IdleStateEvent
            dup
            getstatic io.netty.handler.timeout.IdleState.READER_IDLE:Lio/netty/handler/timeout/IdleState;
            iconst_0
            invokespecial io.netty.handler.timeout.IdleStateEvent.<init>:(Lio/netty/handler/timeout/IdleState;Z)V
            putstatic io.netty.handler.timeout.IdleStateEvent.READER_IDLE_STATE_EVENT:Lio/netty/handler/timeout/IdleStateEvent;
         2: .line 27
            new io.netty.handler.timeout.IdleStateEvent
            dup
            getstatic io.netty.handler.timeout.IdleState.WRITER_IDLE:Lio/netty/handler/timeout/IdleState;
            iconst_1
            invokespecial io.netty.handler.timeout.IdleStateEvent.<init>:(Lio/netty/handler/timeout/IdleState;Z)V
            putstatic io.netty.handler.timeout.IdleStateEvent.FIRST_WRITER_IDLE_STATE_EVENT:Lio/netty/handler/timeout/IdleStateEvent;
         3: .line 28
            new io.netty.handler.timeout.IdleStateEvent
            dup
            getstatic io.netty.handler.timeout.IdleState.WRITER_IDLE:Lio/netty/handler/timeout/IdleState;
            iconst_0
            invokespecial io.netty.handler.timeout.IdleStateEvent.<init>:(Lio/netty/handler/timeout/IdleState;Z)V
            putstatic io.netty.handler.timeout.IdleStateEvent.WRITER_IDLE_STATE_EVENT:Lio/netty/handler/timeout/IdleStateEvent;
         4: .line 29
            new io.netty.handler.timeout.IdleStateEvent
            dup
            getstatic io.netty.handler.timeout.IdleState.ALL_IDLE:Lio/netty/handler/timeout/IdleState;
            iconst_1
            invokespecial io.netty.handler.timeout.IdleStateEvent.<init>:(Lio/netty/handler/timeout/IdleState;Z)V
            putstatic io.netty.handler.timeout.IdleStateEvent.FIRST_ALL_IDLE_STATE_EVENT:Lio/netty/handler/timeout/IdleStateEvent;
         5: .line 30
            new io.netty.handler.timeout.IdleStateEvent
            dup
            getstatic io.netty.handler.timeout.IdleState.ALL_IDLE:Lio/netty/handler/timeout/IdleState;
            iconst_0
            invokespecial io.netty.handler.timeout.IdleStateEvent.<init>:(Lio/netty/handler/timeout/IdleState;Z)V
            putstatic io.netty.handler.timeout.IdleStateEvent.ALL_IDLE_STATE_EVENT:Lio/netty/handler/timeout/IdleStateEvent;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  protected void <init>(io.netty.handler.timeout.IdleState, boolean);
    descriptor: (Lio/netty/handler/timeout/IdleState;Z)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // io.netty.handler.timeout.IdleStateEvent this
        start local 1 // io.netty.handler.timeout.IdleState state
        start local 2 // boolean first
         0: .line 41
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 42
            aload 0 /* this */
            aload 1 /* state */
            ldc "state"
            invokestatic io.netty.util.internal.ObjectUtil.checkNotNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            checkcast io.netty.handler.timeout.IdleState
            putfield io.netty.handler.timeout.IdleStateEvent.state:Lio/netty/handler/timeout/IdleState;
         2: .line 43
            aload 0 /* this */
            iload 2 /* first */
            putfield io.netty.handler.timeout.IdleStateEvent.first:Z
         3: .line 44
            return
        end local 2 // boolean first
        end local 1 // io.netty.handler.timeout.IdleState state
        end local 0 // io.netty.handler.timeout.IdleStateEvent this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    4     0   this  Lio/netty/handler/timeout/IdleStateEvent;
            0    4     1  state  Lio/netty/handler/timeout/IdleState;
            0    4     2  first  Z
    MethodParameters:
       Name  Flags
      state  
      first  

  public io.netty.handler.timeout.IdleState state();
    descriptor: ()Lio/netty/handler/timeout/IdleState;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.timeout.IdleStateEvent this
         0: .line 50
            aload 0 /* this */
            getfield io.netty.handler.timeout.IdleStateEvent.state:Lio/netty/handler/timeout/IdleState;
            areturn
        end local 0 // io.netty.handler.timeout.IdleStateEvent this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/timeout/IdleStateEvent;

  public boolean isFirst();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.netty.handler.timeout.IdleStateEvent this
         0: .line 57
            aload 0 /* this */
            getfield io.netty.handler.timeout.IdleStateEvent.first:Z
            ireturn
        end local 0 // io.netty.handler.timeout.IdleStateEvent this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/netty/handler/timeout/IdleStateEvent;
}
SourceFile: "IdleStateEvent.java"