public class org.jruby.util.io.FilenoUtil
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.jruby.util.io.FilenoUtil
  super_class: java.lang.Object
{
  public static final int FIRST_FAKE_FD;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 100000

  protected final java.util.concurrent.atomic.AtomicInteger internalFilenoIndex;
    descriptor: Ljava/util/concurrent/atomic/AtomicInteger;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  private final org.jruby.util.collections.NonBlockingHashMapLong<org.jruby.util.io.ChannelFD> filenoMap;
    descriptor: Lorg/jruby/util/collections/NonBlockingHashMapLong;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Lorg/jruby/util/collections/NonBlockingHashMapLong<Lorg/jruby/util/io/ChannelFD;>;

  private final jnr.posix.POSIX posix;
    descriptor: Ljnr/posix/POSIX;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.jruby.util.io.FilenoUtil$WinC winc;
    descriptor: Lorg/jruby/util/io/FilenoUtil$WinC;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static final org.jruby.util.log.Logger LOG;
    descriptor: Lorg/jruby/util/log/Logger;
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 192
            ldc Lorg/jruby/util/io/FilenoUtil;
            invokestatic org.jruby.util.log.LoggerFactory.getLogger:(Ljava/lang/Class;)Lorg/jruby/util/log/Logger;
            putstatic org.jruby.util.io.FilenoUtil.LOG:Lorg/jruby/util/log/Logger;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(jnr.posix.POSIX);
    descriptor: (Ljnr/posix/POSIX;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.jruby.util.io.FilenoUtil this
         0: .line 6
            new java.lang.Error
            dup
            ldc "Unresolved compilation problems: \n\tThe import jnr.ffi.LibraryLoader cannot be resolved\n\tThe import jnr.ffi.Pointer cannot be resolved\n\tLibraryLoader cannot be resolved\n\tThe method toPointer() from the type HANDLE refers to the missing type Pointer\n\tPointer cannot be resolved to a type\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // org.jruby.util.io.FilenoUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/util/io/FilenoUtil;
    MethodParameters:
       Name  Flags
      posix  

  public static java.io.FileDescriptor getDescriptorFromChannel(java.nio.channels.Channel);
    descriptor: (Ljava/nio/channels/Channel;)Ljava/io/FileDescriptor;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // java.nio.channels.Channel channel
         0: .line 50
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.SEL_CH_IMPL_GET_FD_HANDLE:Ljava/lang/invoke/MethodHandle;
            ifnull 5
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.SEL_CH_IMPL:Ljava/util/function/Predicate;
            aload 0 /* channel */
            invokeinterface java.util.function.Predicate.test:(Ljava/lang/Object;)Z
            ifeq 5
         1: .line 53
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.SEL_CH_IMPL_GET_FD:Ljava/util/function/Function;
            aload 0 /* channel */
            invokeinterface java.util.function.Function.apply:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.io.FileDescriptor
         2: areturn
         3: .line 54
      StackMap locals:
      StackMap stack: java.lang.Exception
            pop
         4: .line 57
            goto 21
      StackMap locals:
      StackMap stack:
         5: getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_CHANNEL_IMPL_GET_FD_HANDLE:Ljava/lang/invoke/MethodHandle;
            ifnull 10
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_CHANNEL_IMPL:Ljava/util/function/Predicate;
            aload 0 /* channel */
            invokeinterface java.util.function.Predicate.test:(Ljava/lang/Object;)Z
            ifeq 10
         6: .line 60
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_CHANNEL_IMPL_GET_FD:Ljava/util/function/Function;
            aload 0 /* channel */
            invokeinterface java.util.function.Function.apply:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.io.FileDescriptor
         7: areturn
         8: .line 61
      StackMap locals:
      StackMap stack: java.lang.Exception
            pop
         9: .line 64
            goto 21
      StackMap locals:
      StackMap stack:
        10: getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_DESCRIPTOR_SET_FILENO_HANDLE:Ljava/lang/invoke/MethodHandle;
            ifnull 21
        11: .line 65
            new java.io.FileDescriptor
            dup
            invokespecial java.io.FileDescriptor.<init>:()V
            astore 1 /* unixFD */
        start local 1 // java.io.FileDescriptor unixFD
        12: .line 69
            aload 0 /* channel */
            instanceof jnr.unixsocket.UnixSocketChannel
            ifeq 16
        13: .line 70
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_DESCRIPTOR_SET_FILENO:Ljava/util/function/ObjIntConsumer;
            aload 1 /* unixFD */
            aload 0 /* channel */
            checkcast jnr.unixsocket.UnixSocketChannel
            invokevirtual jnr.unixsocket.UnixSocketChannel.getFD:()I
            invokeinterface java.util.function.ObjIntConsumer.accept:(Ljava/lang/Object;I)V
        14: .line 71
            aload 1 /* unixFD */
        15: areturn
        16: .line 72
      StackMap locals: java.io.FileDescriptor
      StackMap stack:
            aload 0 /* channel */
            instanceof jnr.unixsocket.UnixServerSocketChannel
            ifeq 21
        17: .line 73
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_DESCRIPTOR_SET_FILENO:Ljava/util/function/ObjIntConsumer;
            aload 1 /* unixFD */
            aload 0 /* channel */
            checkcast jnr.unixsocket.UnixServerSocketChannel
            invokevirtual jnr.unixsocket.UnixServerSocketChannel.getFD:()I
            invokeinterface java.util.function.ObjIntConsumer.accept:(Ljava/lang/Object;I)V
        18: .line 74
            aload 1 /* unixFD */
        19: areturn
        20: .line 76
      StackMap locals:
      StackMap stack: java.lang.Exception
            pop
        end local 1 // java.io.FileDescriptor unixFD
        21: .line 80
      StackMap locals:
      StackMap stack:
            new java.io.FileDescriptor
            dup
            invokespecial java.io.FileDescriptor.<init>:()V
            areturn
        end local 0 // java.nio.channels.Channel channel
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   22     0  channel  Ljava/nio/channels/Channel;
           12   21     1   unixFD  Ljava/io/FileDescriptor;
      Exception table:
        from    to  target  type
           1     2       3  Class java.lang.Exception
           6     7       8  Class java.lang.Exception
          12    15      20  Class java.lang.Exception
          16    19      20  Class java.lang.Exception
    MethodParameters:
         Name  Flags
      channel  

  public org.jruby.util.io.ChannelFD getWrapperFromFileno(int);
    descriptor: (I)Lorg/jruby/util/io/ChannelFD;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // org.jruby.util.io.FilenoUtil this
        start local 1 // int fileno
         0: .line 84
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.filenoMap:Lorg/jruby/util/collections/NonBlockingHashMapLong;
            iload 1 /* fileno */
            i2l
            invokevirtual org.jruby.util.collections.NonBlockingHashMapLong.get:(J)Ljava/lang/Object;
            checkcast org.jruby.util.io.ChannelFD
            astore 2 /* fd */
        start local 2 // org.jruby.util.io.ChannelFD fd
         1: .line 89
            aload 2 /* fd */
            ifnull 6
            aload 2 /* fd */
            getfield org.jruby.util.io.ChannelFD.ch:Ljava/nio/channels/Channel;
            invokeinterface java.nio.channels.Channel.isOpen:()Z
            ifne 6
            iload 1 /* fileno */
            invokestatic org.jruby.util.io.FilenoUtil.isFake:(I)Z
            ifne 6
         2: .line 90
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.posix:Ljnr/posix/POSIX;
            invokeinterface jnr.posix.POSIX.allocateStat:()Ljnr/posix/FileStat;
            astore 3 /* stat */
        start local 3 // jnr.posix.FileStat stat
         3: .line 91
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.posix:Ljnr/posix/POSIX;
            iload 1 /* fileno */
            aload 3 /* stat */
            invokeinterface jnr.posix.POSIX.fstat:(ILjnr/posix/FileStat;)I
            iflt 6
         4: .line 93
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.filenoMap:Lorg/jruby/util/collections/NonBlockingHashMapLong;
            iload 1 /* fileno */
            i2l
            invokevirtual org.jruby.util.collections.NonBlockingHashMapLong.remove:(J)Ljava/lang/Object;
            pop
         5: .line 94
            aconst_null
            astore 2 /* fd */
        end local 3 // jnr.posix.FileStat stat
         6: .line 98
      StackMap locals: org.jruby.util.io.ChannelFD
      StackMap stack:
            aload 2 /* fd */
            areturn
        end local 2 // org.jruby.util.io.ChannelFD fd
        end local 1 // int fileno
        end local 0 // org.jruby.util.io.FilenoUtil this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0    this  Lorg/jruby/util/io/FilenoUtil;
            0    7     1  fileno  I
            1    7     2      fd  Lorg/jruby/util/io/ChannelFD;
            3    6     3    stat  Ljnr/posix/FileStat;
    MethodParameters:
        Name  Flags
      fileno  

  public void registerWrapper(int, org.jruby.util.io.ChannelFD);
    descriptor: (ILorg/jruby/util/io/ChannelFD;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // org.jruby.util.io.FilenoUtil this
        start local 1 // int fileno
        start local 2 // org.jruby.util.io.ChannelFD wrapper
         0: .line 102
            iload 1 /* fileno */
            iconst_m1
            if_icmpne 1
            return
         1: .line 103
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.filenoMap:Lorg/jruby/util/collections/NonBlockingHashMapLong;
            iload 1 /* fileno */
            i2l
            aload 2 /* wrapper */
            invokevirtual org.jruby.util.collections.NonBlockingHashMapLong.put:(JLjava/lang/Object;)Ljava/lang/Object;
            pop
         2: .line 104
            return
        end local 2 // org.jruby.util.io.ChannelFD wrapper
        end local 1 // int fileno
        end local 0 // org.jruby.util.io.FilenoUtil this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0     this  Lorg/jruby/util/io/FilenoUtil;
            0    3     1   fileno  I
            0    3     2  wrapper  Lorg/jruby/util/io/ChannelFD;
    MethodParameters:
         Name  Flags
      fileno   
      wrapper  

  public void unregisterWrapper(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.jruby.util.io.FilenoUtil this
        start local 1 // int fileno
         0: .line 107
            iload 1 /* fileno */
            iconst_m1
            if_icmpne 1
            return
         1: .line 108
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.filenoMap:Lorg/jruby/util/collections/NonBlockingHashMapLong;
            iload 1 /* fileno */
            i2l
            invokevirtual org.jruby.util.collections.NonBlockingHashMapLong.remove:(J)Ljava/lang/Object;
            pop
         2: .line 109
            return
        end local 1 // int fileno
        end local 0 // org.jruby.util.io.FilenoUtil this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/jruby/util/io/FilenoUtil;
            0    3     1  fileno  I
    MethodParameters:
        Name  Flags
      fileno  

  public int getNumberOfWrappers();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.jruby.util.io.FilenoUtil this
         0: .line 113
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.filenoMap:Lorg/jruby/util/collections/NonBlockingHashMapLong;
            invokevirtual org.jruby.util.collections.NonBlockingHashMapLong.size:()I
            ireturn
        end local 0 // org.jruby.util.io.FilenoUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/util/io/FilenoUtil;

  public int getNewFileno();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.jruby.util.io.FilenoUtil this
         0: .line 117
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.internalFilenoIndex:Ljava/util/concurrent/atomic/AtomicInteger;
            invokevirtual java.util.concurrent.atomic.AtomicInteger.getAndIncrement:()I
            ireturn
        end local 0 // org.jruby.util.io.FilenoUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/util/io/FilenoUtil;

  public static boolean isFake(int);
    descriptor: (I)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // int fileno
         0: .line 121
            iload 0 /* fileno */
            iflt 1
            iload 0 /* fileno */
            ldc 100000
            if_icmpge 1
            iconst_0
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_1
            ireturn
        end local 0 // int fileno
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0  fileno  I
    MethodParameters:
        Name  Flags
      fileno  

  public static int filenoFrom(java.nio.channels.Channel);
    descriptor: (Ljava/nio/channels/Channel;)I
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.nio.channels.Channel channel
         0: .line 125
            aload 0 /* channel */
            instanceof jnr.enxio.channels.NativeSelectableChannel
            ifeq 2
         1: .line 126
            aload 0 /* channel */
            checkcast jnr.enxio.channels.NativeSelectableChannel
            invokeinterface jnr.enxio.channels.NativeSelectableChannel.getFD:()I
            ireturn
         2: .line 129
      StackMap locals:
      StackMap stack:
            aload 0 /* channel */
            invokestatic org.jruby.util.io.FilenoUtil.getFilenoUsingReflection:(Ljava/nio/channels/Channel;)I
            ireturn
        end local 0 // java.nio.channels.Channel channel
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0  channel  Ljava/nio/channels/Channel;
    MethodParameters:
         Name  Flags
      channel  

  private static int getFilenoUsingReflection(java.nio.channels.Channel);
    descriptor: (Ljava/nio/channels/Channel;)I
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.nio.channels.Channel channel
         0: .line 133
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_DESCRIPTOR_GET_FILENO_HANDLE:Ljava/lang/invoke/MethodHandle;
            ifnull 2
         1: .line 134
            aload 0 /* channel */
            invokestatic org.jruby.util.io.FilenoUtil.getDescriptorFromChannel:(Ljava/nio/channels/Channel;)Ljava/io/FileDescriptor;
            invokestatic org.jruby.util.io.FilenoUtil.filenoFrom:(Ljava/io/FileDescriptor;)I
            ireturn
         2: .line 136
      StackMap locals:
      StackMap stack:
            iconst_m1
            ireturn
        end local 0 // java.nio.channels.Channel channel
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0  channel  Ljava/nio/channels/Channel;
    MethodParameters:
         Name  Flags
      channel  

  public static int filenoFrom(java.io.FileDescriptor);
    descriptor: (Ljava/io/FileDescriptor;)I
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.io.FileDescriptor fd
         0: .line 140
            aload 0 /* fd */
            invokevirtual java.io.FileDescriptor.valid:()Z
            ifeq 4
         1: .line 142
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_DESCRIPTOR_GET_FILENO:Ljava/util/function/ToIntFunction;
            aload 0 /* fd */
            invokeinterface java.util.function.ToIntFunction.applyAsInt:(Ljava/lang/Object;)I
         2: ireturn
         3: .line 143
      StackMap locals:
      StackMap stack: java.lang.Exception
            pop
         4: .line 148
      StackMap locals:
      StackMap stack:
            iconst_m1
            ireturn
        end local 0 // java.io.FileDescriptor fd
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0    fd  Ljava/io/FileDescriptor;
      Exception table:
        from    to  target  type
           1     2       3  Class java.lang.Exception
    MethodParameters:
      Name  Flags
      fd    

  private static jnr.posix.HANDLE handleFrom(java.nio.channels.Channel);
    descriptor: (Ljava/nio/channels/Channel;)Ljnr/posix/HANDLE;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.nio.channels.Channel channel
         0: .line 152
            aload 0 /* channel */
            instanceof jnr.enxio.channels.NativeSelectableChannel
            ifeq 2
         1: .line 153
            aload 0 /* channel */
            checkcast jnr.enxio.channels.NativeSelectableChannel
            invokeinterface jnr.enxio.channels.NativeSelectableChannel.getFD:()I
            i2l
            invokestatic jnr.posix.HANDLE.valueOf:(J)Ljnr/posix/HANDLE;
            areturn
         2: .line 156
      StackMap locals:
      StackMap stack:
            aload 0 /* channel */
            invokestatic org.jruby.util.io.FilenoUtil.getHandleUsingReflection:(Ljava/nio/channels/Channel;)Ljnr/posix/HANDLE;
            areturn
        end local 0 // java.nio.channels.Channel channel
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0  channel  Ljava/nio/channels/Channel;
    MethodParameters:
         Name  Flags
      channel  

  private static jnr.posix.HANDLE getHandleUsingReflection(java.nio.channels.Channel);
    descriptor: (Ljava/nio/channels/Channel;)Ljnr/posix/HANDLE;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.nio.channels.Channel channel
         0: .line 160
            getstatic org.jruby.util.io.FilenoUtil$ReflectiveAccess.FILE_DESCRIPTOR_GET_FILENO_HANDLE:Ljava/lang/invoke/MethodHandle;
            ifnull 2
         1: .line 161
            aload 0 /* channel */
            invokestatic org.jruby.util.io.FilenoUtil.getDescriptorFromChannel:(Ljava/nio/channels/Channel;)Ljava/io/FileDescriptor;
            invokestatic jnr.posix.JavaLibCHelper.gethandle:(Ljava/io/FileDescriptor;)Ljnr/posix/HANDLE;
            areturn
         2: .line 163
      StackMap locals:
      StackMap stack:
            ldc -1
            invokestatic jnr.posix.HANDLE.valueOf:(J)Ljnr/posix/HANDLE;
            areturn
        end local 0 // java.nio.channels.Channel channel
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0  channel  Ljava/nio/channels/Channel;
    MethodParameters:
         Name  Flags
      channel  

  public int filenoFromHandleIn(java.nio.channels.Channel, int);
    descriptor: (Ljava/nio/channels/Channel;I)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.jruby.util.io.FilenoUtil this
         0: .line 172
            new java.lang.Error
            dup
            ldc "Unresolved compilation problem: \n\tThe method toPointer() from the type HANDLE refers to the missing type Pointer\n"
            invokespecial java.lang.Error.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // org.jruby.util.io.FilenoUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/jruby/util/io/FilenoUtil;
    MethodParameters:
         Name  Flags
      channel  
      flags    

  public int closeFilenoHandle(int);
    descriptor: (I)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.jruby.util.io.FilenoUtil this
        start local 1 // int fd
         0: .line 176
            iload 1 /* fd */
            iconst_m1
            if_icmpeq 2
         1: .line 177
            aload 0 /* this */
            getfield org.jruby.util.io.FilenoUtil.winc:Lorg/jruby/util/io/FilenoUtil$WinC;
            iload 1 /* fd */
            invokeinterface org.jruby.util.io.FilenoUtil$WinC._close:(I)I
            ireturn
         2: .line 178
      StackMap locals:
      StackMap stack:
            iconst_m1
            ireturn
        end local 1 // int fd
        end local 0 // org.jruby.util.io.FilenoUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/jruby/util/io/FilenoUtil;
            0    3     1    fd  I
    MethodParameters:
      Name  Flags
      fd    
}
SourceFile: "FilenoUtil.java"
NestMembers:
  org.jruby.util.io.FilenoUtil$ReflectiveAccess  org.jruby.util.io.FilenoUtil$WinC
InnerClasses:
  private ReflectiveAccess = org.jruby.util.io.FilenoUtil$ReflectiveAccess of org.jruby.util.io.FilenoUtil
  public abstract WinC = org.jruby.util.io.FilenoUtil$WinC of org.jruby.util.io.FilenoUtil