public abstract class java.nio.channels.Selector implements java.io.Closeable
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: java.nio.channels.Selector
  super_class: java.lang.Object
{
  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 274
            ldc Ljava/nio/channels/Selector;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic java.nio.channels.Selector.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  protected void <init>();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.nio.channels.Selector this
         0: .line 279
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // java.nio.channels.Selector this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljava/nio/channels/Selector;

  public static java.nio.channels.Selector open();
    descriptor: ()Ljava/nio/channels/Selector;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 295
            invokestatic java.nio.channels.spi.SelectorProvider.provider:()Ljava/nio/channels/spi/SelectorProvider;
            invokevirtual java.nio.channels.spi.SelectorProvider.openSelector:()Ljava/nio/channels/spi/AbstractSelector;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Exceptions:
      throws java.io.IOException

  public abstract boolean isOpen();
    descriptor: ()Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.nio.channels.spi.SelectorProvider provider();
    descriptor: ()Ljava/nio/channels/spi/SelectorProvider;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.util.Set<java.nio.channels.SelectionKey> keys();
    descriptor: ()Ljava/util/Set;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/Set<Ljava/nio/channels/SelectionKey;>;

  public abstract java.util.Set<java.nio.channels.SelectionKey> selectedKeys();
    descriptor: ()Ljava/util/Set;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/Set<Ljava/nio/channels/SelectionKey;>;

  public abstract int selectNow();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException

  public abstract int select(long);
    descriptor: (J)I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException
    MethodParameters:
         Name  Flags
      timeout  

  public abstract int select();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException

  public int select(java.util.function.Consumer<java.nio.channels.SelectionKey>, );
    descriptor: (Ljava/util/function/Consumer;J)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // java.nio.channels.Selector this
        start local 1 // java.util.function.Consumer action
        start local 2 // long timeout
         0: .line 485
            lload 2 /* timeout */
            lconst_0
            lcmp
            ifge 2
         1: .line 486
            new java.lang.IllegalArgumentException
            dup
            ldc "Negative timeout"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 487
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* action */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.util.function.Consumer
            lload 2 /* timeout */
            invokevirtual java.nio.channels.Selector.doSelect:(Ljava/util/function/Consumer;J)I
            ireturn
        end local 2 // long timeout
        end local 1 // java.util.function.Consumer action
        end local 0 // java.nio.channels.Selector this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0     this  Ljava/nio/channels/Selector;
            0    3     1   action  Ljava/util/function/Consumer<Ljava/nio/channels/SelectionKey;>;
            0    3     2  timeout  J
    Exceptions:
      throws java.io.IOException
    Signature: (Ljava/util/function/Consumer<Ljava/nio/channels/SelectionKey;>;J)I
    MethodParameters:
         Name  Flags
      action   
      timeout  

  public int select(java.util.function.Consumer<java.nio.channels.SelectionKey>);
    descriptor: (Ljava/util/function/Consumer;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // java.nio.channels.Selector this
        start local 1 // java.util.function.Consumer action
         0: .line 520
            aload 0 /* this */
            aload 1 /* action */
            lconst_0
            invokevirtual java.nio.channels.Selector.select:(Ljava/util/function/Consumer;J)I
            ireturn
        end local 1 // java.util.function.Consumer action
        end local 0 // java.nio.channels.Selector this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Ljava/nio/channels/Selector;
            0    1     1  action  Ljava/util/function/Consumer<Ljava/nio/channels/SelectionKey;>;
    Exceptions:
      throws java.io.IOException
    Signature: (Ljava/util/function/Consumer<Ljava/nio/channels/SelectionKey;>;)I
    MethodParameters:
        Name  Flags
      action  

  public int selectNow(java.util.function.Consumer<java.nio.channels.SelectionKey>);
    descriptor: (Ljava/util/function/Consumer;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // java.nio.channels.Selector this
        start local 1 // java.util.function.Consumer action
         0: .line 553
            aload 0 /* this */
            aload 1 /* action */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.util.function.Consumer
            ldc -1
            invokevirtual java.nio.channels.Selector.doSelect:(Ljava/util/function/Consumer;J)I
            ireturn
        end local 1 // java.util.function.Consumer action
        end local 0 // java.nio.channels.Selector this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Ljava/nio/channels/Selector;
            0    1     1  action  Ljava/util/function/Consumer<Ljava/nio/channels/SelectionKey;>;
    Exceptions:
      throws java.io.IOException
    Signature: (Ljava/util/function/Consumer<Ljava/nio/channels/SelectionKey;>;)I
    MethodParameters:
        Name  Flags
      action  

  private int doSelect(java.util.function.Consumer<java.nio.channels.SelectionKey>, );
    descriptor: (Ljava/util/function/Consumer;J)I
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=9, args_size=3
        start local 0 // java.nio.channels.Selector this
        start local 1 // java.util.function.Consumer action
        start local 2 // long timeout
         0: .line 562
            aload 0 /* this */
            dup
            astore 4
            monitorenter
         1: .line 563
            aload 0 /* this */
            invokevirtual java.nio.channels.Selector.selectedKeys:()Ljava/util/Set;
            astore 5 /* selectedKeys */
        start local 5 // java.util.Set selectedKeys
         2: .line 564
            aload 5 /* selectedKeys */
            dup
            astore 6
            monitorenter
         3: .line 565
            aload 5 /* selectedKeys */
            invokeinterface java.util.Set.clear:()V
         4: .line 567
            lload 2 /* timeout */
            lconst_0
            lcmp
            ifge 7
         5: .line 568
            aload 0 /* this */
            invokevirtual java.nio.channels.Selector.selectNow:()I
            istore 7 /* numKeySelected */
        start local 7 // int numKeySelected
         6: .line 569
            goto 8
        end local 7 // int numKeySelected
         7: .line 570
      StackMap locals: java.nio.channels.Selector java.util.Set java.util.Set
      StackMap stack:
            aload 0 /* this */
            lload 2 /* timeout */
            invokevirtual java.nio.channels.Selector.select:(J)I
            istore 7 /* numKeySelected */
        start local 7 // int numKeySelected
         8: .line 574
      StackMap locals: int
      StackMap stack:
            aload 5 /* selectedKeys */
            invokestatic java.util.Set.copyOf:(Ljava/util/Collection;)Ljava/util/Set;
            astore 8 /* keysToConsume */
        start local 8 // java.util.Set keysToConsume
         9: .line 575
            getstatic java.nio.channels.Selector.$assertionsDisabled:Z
            ifne 10
            aload 8 /* keysToConsume */
            invokeinterface java.util.Set.size:()I
            iload 7 /* numKeySelected */
            if_icmpeq 10
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
        10: .line 576
      StackMap locals: java.util.Set
      StackMap stack:
            aload 5 /* selectedKeys */
            invokeinterface java.util.Set.clear:()V
        11: .line 579
            aload 8 /* keysToConsume */
            aload 0 /* this */
            aload 1 /* action */
            invokedynamic accept(Ljava/nio/channels/Selector;Ljava/util/function/Consumer;)Ljava/util/function/Consumer;
              Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
                Method arguments:
                  (Ljava/lang/Object;)V
                  java/nio/channels/Selector.lambda$0(Ljava/util/function/Consumer;Ljava/nio/channels/SelectionKey;)V (7)
                  (Ljava/nio/channels/SelectionKey;)V
            invokeinterface java.util.Set.forEach:(Ljava/util/function/Consumer;)V
        12: .line 585
            iload 7 /* numKeySelected */
            aload 6
            monitorexit
        13: aload 4
            monitorexit
        14: ireturn
        end local 8 // java.util.Set keysToConsume
        end local 7 // int numKeySelected
        15: .line 564
      StackMap locals: java.nio.channels.Selector java.util.function.Consumer long java.nio.channels.Selector java.util.Set java.util.Set
      StackMap stack: java.lang.Throwable
            aload 6
            monitorexit
        16: athrow
        end local 5 // java.util.Set selectedKeys
        17: .line 562
      StackMap locals: java.nio.channels.Selector java.util.function.Consumer long java.nio.channels.Selector
      StackMap stack: java.lang.Throwable
            aload 4
            monitorexit
        18: athrow
        end local 2 // long timeout
        end local 1 // java.util.function.Consumer action
        end local 0 // java.nio.channels.Selector this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0   19     0            this  Ljava/nio/channels/Selector;
            0   19     1          action  Ljava/util/function/Consumer<Ljava/nio/channels/SelectionKey;>;
            0   19     2         timeout  J
            2   17     5    selectedKeys  Ljava/util/Set<Ljava/nio/channels/SelectionKey;>;
            6    7     7  numKeySelected  I
            8   15     7  numKeySelected  I
            9   15     8   keysToConsume  Ljava/util/Set<Ljava/nio/channels/SelectionKey;>;
      Exception table:
        from    to  target  type
           3    13      15  any
          15    16      15  any
           1    14      17  any
          15    18      17  any
    Exceptions:
      throws java.io.IOException
    Signature: (Ljava/util/function/Consumer<Ljava/nio/channels/SelectionKey;>;J)I
    MethodParameters:
         Name  Flags
      action   
      timeout  

  public abstract java.nio.channels.Selector wakeup();
    descriptor: ()Ljava/nio/channels/Selector;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract void close();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException

  private void lambda$0(java.util.function.Consumer, java.nio.channels.SelectionKey);
    descriptor: (Ljava/util/function/Consumer;Ljava/nio/channels/SelectionKey;)V
    flags: (0x1002) ACC_PRIVATE, ACC_SYNTHETIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // java.nio.channels.Selector this
        start local 2 // java.nio.channels.SelectionKey k
         0: .line 580
            aload 1
            aload 2 /* k */
            invokeinterface java.util.function.Consumer.accept:(Ljava/lang/Object;)V
         1: .line 581
            aload 0 /* this */
            invokevirtual java.nio.channels.Selector.isOpen:()Z
            ifne 3
         2: .line 582
            new java.nio.channels.ClosedSelectorException
            dup
            invokespecial java.nio.channels.ClosedSelectorException.<init>:()V
            athrow
         3: .line 583
      StackMap locals:
      StackMap stack:
            return
        end local 2 // java.nio.channels.SelectionKey k
        end local 0 // java.nio.channels.Selector this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Ljava/nio/channels/Selector;
            0    4     2     k  Ljava/nio/channels/SelectionKey;
}
SourceFile: "Selector.java"
InnerClasses:
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles