public class sun.nio.ch.Util
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: sun.nio.ch.Util
  super_class: java.lang.Object
{
  private static final int TEMP_BUF_POOL_SIZE;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final long MAX_CACHED_BUFFER_SIZE;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static java.lang.ThreadLocal<sun.nio.ch.Util$BufferCache> bufferCache;
    descriptor: Ljava/lang/ThreadLocal;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Signature: Ljava/lang/ThreadLocal<Lsun/nio/ch/Util$BufferCache;>;

  private static jdk.internal.misc.Unsafe unsafe;
    descriptor: Ljdk/internal/misc/Unsafe;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC

  private static int pageSize;
    descriptor: I
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC

  private static volatile java.lang.reflect.Constructor<?> directByteBufferConstructor;
    descriptor: Ljava/lang/reflect/Constructor;
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE
    Signature: Ljava/lang/reflect/Constructor<*>;

  private static volatile java.lang.reflect.Constructor<?> directByteBufferRConstructor;
    descriptor: Ljava/lang/reflect/Constructor;
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE
    Signature: Ljava/lang/reflect/Constructor<*>;

  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=2, locals=0, args_size=0
         0: .line 44
            ldc Lsun/nio/ch/Util;
            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 sun.nio.ch.Util.$assertionsDisabled:Z
         3: .line 49
            getstatic sun.nio.ch.IOUtil.IOV_MAX:I
            putstatic sun.nio.ch.Util.TEMP_BUF_POOL_SIZE:I
         4: .line 52
            invokestatic sun.nio.ch.Util.getMaxCachedBufferSize:()J
            putstatic sun.nio.ch.Util.MAX_CACHED_BUFFER_SIZE:J
         5: .line 55
            new sun.nio.ch.Util$1
            dup
            invokespecial sun.nio.ch.Util$1.<init>:()V
            putstatic sun.nio.ch.Util.bufferCache:Ljava/lang/ThreadLocal;
         6: .line 381
            invokestatic jdk.internal.misc.Unsafe.getUnsafe:()Ljdk/internal/misc/Unsafe;
            putstatic sun.nio.ch.Util.unsafe:Ljdk/internal/misc/Unsafe;
         7: .line 399
            iconst_m1
            putstatic sun.nio.ch.Util.pageSize:I
         8: .line 452
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // sun.nio.ch.Util this
         0: .line 44
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // sun.nio.ch.Util this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lsun/nio/ch/Util;

  private static long getMaxCachedBufferSize();
    descriptor: ()J
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=0
         0: .line 78
            ldc "jdk.nio.maxCachedBufferSize"
            invokestatic sun.security.action.GetPropertyAction.privilegedGetProperty:(Ljava/lang/String;)Ljava/lang/String;
         1: .line 77
            astore 0 /* s */
        start local 0 // java.lang.String s
         2: .line 79
            aload 0 /* s */
            ifnull 8
         3: .line 81
            aload 0 /* s */
            invokestatic java.lang.Long.parseLong:(Ljava/lang/String;)J
            lstore 1 /* m */
        start local 1 // long m
         4: .line 82
            lload 1 /* m */
            lconst_0
            lcmp
            iflt 8
         5: .line 83
            lload 1 /* m */
         6: lreturn
        end local 1 // long m
         7: .line 87
      StackMap locals: java.lang.String
      StackMap stack: java.lang.NumberFormatException
            pop
         8: .line 91
      StackMap locals:
      StackMap stack:
            ldc 9223372036854775807
            lreturn
        end local 0 // java.lang.String s
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            2    9     0     s  Ljava/lang/String;
            4    7     1     m  J
      Exception table:
        from    to  target  type
           3     6       7  Class java.lang.NumberFormatException

  private static boolean isBufferTooLarge(int);
    descriptor: (I)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // int size
         0: .line 99
            iload 0 /* size */
            i2l
            getstatic sun.nio.ch.Util.MAX_CACHED_BUFFER_SIZE:J
            lcmp
            ifle 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // int size
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  size  I
    MethodParameters:
      Name  Flags
      size  

  private static boolean isBufferTooLarge(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.nio.ByteBuffer buf
         0: .line 107
            aload 0 /* buf */
            invokevirtual java.nio.ByteBuffer.capacity:()I
            invokestatic sun.nio.ch.Util.isBufferTooLarge:(I)Z
            ireturn
        end local 0 // java.nio.ByteBuffer buf
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0   buf  Ljava/nio/ByteBuffer;
    MethodParameters:
      Name  Flags
      buf   

  public static java.nio.ByteBuffer getTemporaryDirectBuffer(int);
    descriptor: (I)Ljava/nio/ByteBuffer;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=3, args_size=1
        start local 0 // int size
         0: .line 226
            iload 0 /* size */
            invokestatic sun.nio.ch.Util.isBufferTooLarge:(I)Z
            ifeq 2
         1: .line 227
            iload 0 /* size */
            invokestatic java.nio.ByteBuffer.allocateDirect:(I)Ljava/nio/ByteBuffer;
            areturn
         2: .line 230
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.bufferCache:Ljava/lang/ThreadLocal;
            invokevirtual java.lang.ThreadLocal.get:()Ljava/lang/Object;
            checkcast sun.nio.ch.Util$BufferCache
            astore 1 /* cache */
        start local 1 // sun.nio.ch.Util$BufferCache cache
         3: .line 231
            aload 1 /* cache */
            iload 0 /* size */
            invokevirtual sun.nio.ch.Util$BufferCache.get:(I)Ljava/nio/ByteBuffer;
            astore 2 /* buf */
        start local 2 // java.nio.ByteBuffer buf
         4: .line 232
            aload 2 /* buf */
            ifnull 6
         5: .line 233
            aload 2 /* buf */
            areturn
         6: .line 238
      StackMap locals: sun.nio.ch.Util$BufferCache java.nio.ByteBuffer
      StackMap stack:
            aload 1 /* cache */
            invokevirtual sun.nio.ch.Util$BufferCache.isEmpty:()Z
            ifne 9
         7: .line 239
            aload 1 /* cache */
            invokevirtual sun.nio.ch.Util$BufferCache.removeFirst:()Ljava/nio/ByteBuffer;
            astore 2 /* buf */
         8: .line 240
            aload 2 /* buf */
            invokestatic sun.nio.ch.Util.free:(Ljava/nio/ByteBuffer;)V
         9: .line 242
      StackMap locals:
      StackMap stack:
            iload 0 /* size */
            invokestatic java.nio.ByteBuffer.allocateDirect:(I)Ljava/nio/ByteBuffer;
            areturn
        end local 2 // java.nio.ByteBuffer buf
        end local 1 // sun.nio.ch.Util$BufferCache cache
        end local 0 // int size
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   10     0   size  I
            3   10     1  cache  Lsun/nio/ch/Util$BufferCache;
            4   10     2    buf  Ljava/nio/ByteBuffer;
    MethodParameters:
      Name  Flags
      size  

  public static java.nio.ByteBuffer getTemporaryAlignedDirectBuffer(int, int);
    descriptor: (II)Ljava/nio/ByteBuffer;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // int size
        start local 1 // int alignment
         0: .line 252
            iload 0 /* size */
            invokestatic sun.nio.ch.Util.isBufferTooLarge:(I)Z
            ifeq 4
         1: .line 253
            iload 0 /* size */
            iload 1 /* alignment */
            iadd
            iconst_1
            isub
            invokestatic java.nio.ByteBuffer.allocateDirect:(I)Ljava/nio/ByteBuffer;
         2: .line 254
            iload 1 /* alignment */
            invokevirtual java.nio.ByteBuffer.alignedSlice:(I)Ljava/nio/ByteBuffer;
         3: .line 253
            areturn
         4: .line 257
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.bufferCache:Ljava/lang/ThreadLocal;
            invokevirtual java.lang.ThreadLocal.get:()Ljava/lang/Object;
            checkcast sun.nio.ch.Util$BufferCache
            astore 2 /* cache */
        start local 2 // sun.nio.ch.Util$BufferCache cache
         5: .line 258
            aload 2 /* cache */
            iload 0 /* size */
            invokevirtual sun.nio.ch.Util$BufferCache.get:(I)Ljava/nio/ByteBuffer;
            astore 3 /* buf */
        start local 3 // java.nio.ByteBuffer buf
         6: .line 259
            aload 3 /* buf */
            ifnull 9
         7: .line 260
            aload 3 /* buf */
            iconst_0
            iload 1 /* alignment */
            invokevirtual java.nio.ByteBuffer.alignmentOffset:(II)I
            ifne 12
         8: .line 261
            aload 3 /* buf */
            areturn
         9: .line 264
      StackMap locals: sun.nio.ch.Util$BufferCache java.nio.ByteBuffer
      StackMap stack:
            aload 2 /* cache */
            invokevirtual sun.nio.ch.Util$BufferCache.isEmpty:()Z
            ifne 12
        10: .line 265
            aload 2 /* cache */
            invokevirtual sun.nio.ch.Util$BufferCache.removeFirst:()Ljava/nio/ByteBuffer;
            astore 3 /* buf */
        11: .line 266
            aload 3 /* buf */
            invokestatic sun.nio.ch.Util.free:(Ljava/nio/ByteBuffer;)V
        12: .line 269
      StackMap locals:
      StackMap stack:
            iload 0 /* size */
            iload 1 /* alignment */
            iadd
            iconst_1
            isub
            invokestatic java.nio.ByteBuffer.allocateDirect:(I)Ljava/nio/ByteBuffer;
        13: .line 270
            iload 1 /* alignment */
            invokevirtual java.nio.ByteBuffer.alignedSlice:(I)Ljava/nio/ByteBuffer;
        14: .line 269
            areturn
        end local 3 // java.nio.ByteBuffer buf
        end local 2 // sun.nio.ch.Util$BufferCache cache
        end local 1 // int alignment
        end local 0 // int size
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   15     0       size  I
            0   15     1  alignment  I
            5   15     2      cache  Lsun/nio/ch/Util$BufferCache;
            6   15     3        buf  Ljava/nio/ByteBuffer;
    MethodParameters:
           Name  Flags
      size       
      alignment  

  public static void releaseTemporaryDirectBuffer(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.nio.ByteBuffer buf
         0: .line 277
            aload 0 /* buf */
            invokestatic sun.nio.ch.Util.offerFirstTemporaryDirectBuffer:(Ljava/nio/ByteBuffer;)V
         1: .line 278
            return
        end local 0 // java.nio.ByteBuffer buf
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0   buf  Ljava/nio/ByteBuffer;
    MethodParameters:
      Name  Flags
      buf   

  static void offerFirstTemporaryDirectBuffer(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // java.nio.ByteBuffer buf
         0: .line 288
            aload 0 /* buf */
            invokestatic sun.nio.ch.Util.isBufferTooLarge:(Ljava/nio/ByteBuffer;)Z
            ifeq 3
         1: .line 289
            aload 0 /* buf */
            invokestatic sun.nio.ch.Util.free:(Ljava/nio/ByteBuffer;)V
         2: .line 290
            return
         3: .line 293
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.$assertionsDisabled:Z
            ifne 4
            aload 0 /* buf */
            ifnonnull 4
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         4: .line 294
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.bufferCache:Ljava/lang/ThreadLocal;
            invokevirtual java.lang.ThreadLocal.get:()Ljava/lang/Object;
            checkcast sun.nio.ch.Util$BufferCache
            astore 1 /* cache */
        start local 1 // sun.nio.ch.Util$BufferCache cache
         5: .line 295
            aload 1 /* cache */
            aload 0 /* buf */
            invokevirtual sun.nio.ch.Util$BufferCache.offerFirst:(Ljava/nio/ByteBuffer;)Z
            ifne 7
         6: .line 297
            aload 0 /* buf */
            invokestatic sun.nio.ch.Util.free:(Ljava/nio/ByteBuffer;)V
         7: .line 299
      StackMap locals: sun.nio.ch.Util$BufferCache
      StackMap stack:
            return
        end local 1 // sun.nio.ch.Util$BufferCache cache
        end local 0 // java.nio.ByteBuffer buf
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    8     0    buf  Ljava/nio/ByteBuffer;
            5    8     1  cache  Lsun/nio/ch/Util$BufferCache;
    MethodParameters:
      Name  Flags
      buf   

  static void offerLastTemporaryDirectBuffer(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // java.nio.ByteBuffer buf
         0: .line 310
            aload 0 /* buf */
            invokestatic sun.nio.ch.Util.isBufferTooLarge:(Ljava/nio/ByteBuffer;)Z
            ifeq 3
         1: .line 311
            aload 0 /* buf */
            invokestatic sun.nio.ch.Util.free:(Ljava/nio/ByteBuffer;)V
         2: .line 312
            return
         3: .line 315
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.$assertionsDisabled:Z
            ifne 4
            aload 0 /* buf */
            ifnonnull 4
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         4: .line 316
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.bufferCache:Ljava/lang/ThreadLocal;
            invokevirtual java.lang.ThreadLocal.get:()Ljava/lang/Object;
            checkcast sun.nio.ch.Util$BufferCache
            astore 1 /* cache */
        start local 1 // sun.nio.ch.Util$BufferCache cache
         5: .line 317
            aload 1 /* cache */
            aload 0 /* buf */
            invokevirtual sun.nio.ch.Util$BufferCache.offerLast:(Ljava/nio/ByteBuffer;)Z
            ifne 7
         6: .line 319
            aload 0 /* buf */
            invokestatic sun.nio.ch.Util.free:(Ljava/nio/ByteBuffer;)V
         7: .line 321
      StackMap locals: sun.nio.ch.Util$BufferCache
      StackMap stack:
            return
        end local 1 // sun.nio.ch.Util$BufferCache cache
        end local 0 // java.nio.ByteBuffer buf
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    8     0    buf  Ljava/nio/ByteBuffer;
            5    8     1  cache  Lsun/nio/ch/Util$BufferCache;
    MethodParameters:
      Name  Flags
      buf   

  private static void free(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.nio.ByteBuffer buf
         0: .line 327
            aload 0 /* buf */
            checkcast sun.nio.ch.DirectBuffer
            invokeinterface sun.nio.ch.DirectBuffer.cleaner:()Ljdk/internal/ref/Cleaner;
            invokevirtual jdk.internal.ref.Cleaner.clean:()V
         1: .line 328
            return
        end local 0 // java.nio.ByteBuffer buf
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0   buf  Ljava/nio/ByteBuffer;
    MethodParameters:
      Name  Flags
      buf   

  static java.nio.ByteBuffer[] subsequence(java.nio.ByteBuffer[], int, int);
    descriptor: ([Ljava/nio/ByteBuffer;II)[Ljava/nio/ByteBuffer;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=5, locals=6, args_size=3
        start local 0 // java.nio.ByteBuffer[] bs
        start local 1 // int offset
        start local 2 // int length
         0: .line 334
            iload 1 /* offset */
            ifne 2
            iload 2 /* length */
            aload 0 /* bs */
            arraylength
            if_icmpne 2
         1: .line 335
            aload 0 /* bs */
            areturn
         2: .line 336
      StackMap locals:
      StackMap stack:
            iload 2 /* length */
            istore 3 /* n */
        start local 3 // int n
         3: .line 337
            iload 3 /* n */
            anewarray java.nio.ByteBuffer
            astore 4 /* bs2 */
        start local 4 // java.nio.ByteBuffer[] bs2
         4: .line 338
            iconst_0
            istore 5 /* i */
        start local 5 // int i
         5: goto 8
         6: .line 339
      StackMap locals: int java.nio.ByteBuffer[] int
      StackMap stack:
            aload 4 /* bs2 */
            iload 5 /* i */
            aload 0 /* bs */
            iload 1 /* offset */
            iload 5 /* i */
            iadd
            aaload
            aastore
         7: .line 338
            iinc 5 /* i */ 1
      StackMap locals:
      StackMap stack:
         8: iload 5 /* i */
            iload 3 /* n */
            if_icmplt 6
        end local 5 // int i
         9: .line 340
            aload 4 /* bs2 */
            areturn
        end local 4 // java.nio.ByteBuffer[] bs2
        end local 3 // int n
        end local 2 // int length
        end local 1 // int offset
        end local 0 // java.nio.ByteBuffer[] bs
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   10     0      bs  [Ljava/nio/ByteBuffer;
            0   10     1  offset  I
            0   10     2  length  I
            3   10     3       n  I
            4   10     4     bs2  [Ljava/nio/ByteBuffer;
            5    9     5       i  I
    MethodParameters:
        Name  Flags
      bs      
      offset  
      length  

  static <E> java.util.Set<E> ungrowableSet(java.util.Set<E>);
    descriptor: (Ljava/util/Set;)Ljava/util/Set;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.util.Set s
         0: .line 344
            new sun.nio.ch.Util$2
            dup
            aload 0 /* s */
            invokespecial sun.nio.ch.Util$2.<init>:(Ljava/util/Set;)V
            areturn
        end local 0 // java.util.Set s
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0     s  Ljava/util/Set<TE;>;
    Signature: <E:Ljava/lang/Object;>(Ljava/util/Set<TE;>;)Ljava/util/Set<TE;>;
    MethodParameters:
      Name  Flags
      s     final

  private static byte _get(long);
    descriptor: (J)B
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // long a
         0: .line 384
            getstatic sun.nio.ch.Util.unsafe:Ljdk/internal/misc/Unsafe;
            lload 0 /* a */
            invokevirtual jdk.internal.misc.Unsafe.getByte:(J)B
            ireturn
        end local 0 // long a
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0     a  J
    MethodParameters:
      Name  Flags
      a     

  private static void _put(long, byte);
    descriptor: (JB)V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // long a
        start local 2 // byte b
         0: .line 388
            getstatic sun.nio.ch.Util.unsafe:Ljdk/internal/misc/Unsafe;
            lload 0 /* a */
            iload 2 /* b */
            invokevirtual jdk.internal.misc.Unsafe.putByte:(JB)V
         1: .line 389
            return
        end local 2 // byte b
        end local 0 // long a
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0     a  J
            0    2     2     b  B
    MethodParameters:
      Name  Flags
      a     
      b     

  static void erase(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=6, locals=1, args_size=1
        start local 0 // java.nio.ByteBuffer bb
         0: .line 392
            getstatic sun.nio.ch.Util.unsafe:Ljdk/internal/misc/Unsafe;
            aload 0 /* bb */
            checkcast sun.nio.ch.DirectBuffer
            invokeinterface sun.nio.ch.DirectBuffer.address:()J
            aload 0 /* bb */
            invokevirtual java.nio.ByteBuffer.capacity:()I
            i2l
            iconst_0
            invokevirtual jdk.internal.misc.Unsafe.setMemory:(JJB)V
         1: .line 393
            return
        end local 0 // java.nio.ByteBuffer bb
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0    bb  Ljava/nio/ByteBuffer;
    MethodParameters:
      Name  Flags
      bb    

  static jdk.internal.misc.Unsafe unsafe();
    descriptor: ()Ljdk/internal/misc/Unsafe;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 396
            getstatic sun.nio.ch.Util.unsafe:Ljdk/internal/misc/Unsafe;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  static int pageSize();
    descriptor: ()I
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 402
            getstatic sun.nio.ch.Util.pageSize:I
            iconst_m1
            if_icmpne 2
         1: .line 403
            invokestatic sun.nio.ch.Util.unsafe:()Ljdk/internal/misc/Unsafe;
            invokevirtual jdk.internal.misc.Unsafe.pageSize:()I
            putstatic sun.nio.ch.Util.pageSize:I
         2: .line 404
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.pageSize:I
            ireturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private static void initDBBConstructor();
    descriptor: ()V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 410
            new sun.nio.ch.Util$3
            dup
            invokespecial sun.nio.ch.Util$3.<init>:()V
            invokestatic java.security.AccessController.doPrivileged:(Ljava/security/PrivilegedAction;)Ljava/lang/Object;
            pop
         1: .line 429
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  static java.nio.MappedByteBuffer newMappedByteBuffer(int, long, java.io.FileDescriptor, java.lang.Runnable);
    descriptor: (IJLjava/io/FileDescriptor;Ljava/lang/Runnable;)Ljava/nio/MappedByteBuffer;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=6, locals=7, args_size=4
        start local 0 // int size
        start local 1 // long addr
        start local 3 // java.io.FileDescriptor fd
        start local 4 // java.lang.Runnable unmapper
         0: .line 436
            getstatic sun.nio.ch.Util.directByteBufferConstructor:Ljava/lang/reflect/Constructor;
            ifnonnull 2
         1: .line 437
            invokestatic sun.nio.ch.Util.initDBBConstructor:()V
         2: .line 439
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.directByteBufferConstructor:Ljava/lang/reflect/Constructor;
         3: .line 440
            iconst_4
            anewarray java.lang.Object
            dup
            iconst_0
            iload 0 /* size */
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            aastore
            dup
            iconst_1
         4: .line 441
            lload 1 /* addr */
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            aastore
            dup
            iconst_2
         5: .line 442
            aload 3 /* fd */
            aastore
            dup
            iconst_3
         6: .line 443
            aload 4 /* unmapper */
            aastore
         7: .line 439
            invokevirtual java.lang.reflect.Constructor.newInstance:([Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.nio.MappedByteBuffer
            astore 5 /* dbb */
        start local 5 // java.nio.MappedByteBuffer dbb
         8: .line 444
            goto 11
        end local 5 // java.nio.MappedByteBuffer dbb
         9: .line 446
      StackMap locals:
      StackMap stack: java.lang.ReflectiveOperationException
            astore 6 /* e */
        start local 6 // java.lang.ReflectiveOperationException e
        10: .line 447
            new java.lang.InternalError
            dup
            aload 6 /* e */
            invokespecial java.lang.InternalError.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 6 // java.lang.ReflectiveOperationException e
        start local 5 // java.nio.MappedByteBuffer dbb
        11: .line 449
      StackMap locals: java.nio.MappedByteBuffer
      StackMap stack:
            aload 5 /* dbb */
            areturn
        end local 5 // java.nio.MappedByteBuffer dbb
        end local 4 // java.lang.Runnable unmapper
        end local 3 // java.io.FileDescriptor fd
        end local 1 // long addr
        end local 0 // int size
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   12     0      size  I
            0   12     1      addr  J
            0   12     3        fd  Ljava/io/FileDescriptor;
            0   12     4  unmapper  Ljava/lang/Runnable;
            8    9     5       dbb  Ljava/nio/MappedByteBuffer;
           11   12     5       dbb  Ljava/nio/MappedByteBuffer;
           10   11     6         e  Ljava/lang/ReflectiveOperationException;
      Exception table:
        from    to  target  type
           2     8       9  Class java.lang.InstantiationException
           2     8       9  Class java.lang.IllegalAccessException
           2     8       9  Class java.lang.reflect.InvocationTargetException
    MethodParameters:
          Name  Flags
      size      
      addr      
      fd        
      unmapper  

  private static void initDBBRConstructor();
    descriptor: ()V
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 455
            new sun.nio.ch.Util$4
            dup
            invokespecial sun.nio.ch.Util$4.<init>:()V
            invokestatic java.security.AccessController.doPrivileged:(Ljava/security/PrivilegedAction;)Ljava/lang/Object;
            pop
         1: .line 474
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  static java.nio.MappedByteBuffer newMappedByteBufferR(int, long, java.io.FileDescriptor, java.lang.Runnable);
    descriptor: (IJLjava/io/FileDescriptor;Ljava/lang/Runnable;)Ljava/nio/MappedByteBuffer;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=6, locals=7, args_size=4
        start local 0 // int size
        start local 1 // long addr
        start local 3 // java.io.FileDescriptor fd
        start local 4 // java.lang.Runnable unmapper
         0: .line 481
            getstatic sun.nio.ch.Util.directByteBufferRConstructor:Ljava/lang/reflect/Constructor;
            ifnonnull 2
         1: .line 482
            invokestatic sun.nio.ch.Util.initDBBRConstructor:()V
         2: .line 484
      StackMap locals:
      StackMap stack:
            getstatic sun.nio.ch.Util.directByteBufferRConstructor:Ljava/lang/reflect/Constructor;
         3: .line 485
            iconst_4
            anewarray java.lang.Object
            dup
            iconst_0
            iload 0 /* size */
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            aastore
            dup
            iconst_1
         4: .line 486
            lload 1 /* addr */
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            aastore
            dup
            iconst_2
         5: .line 487
            aload 3 /* fd */
            aastore
            dup
            iconst_3
         6: .line 488
            aload 4 /* unmapper */
            aastore
         7: .line 484
            invokevirtual java.lang.reflect.Constructor.newInstance:([Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.nio.MappedByteBuffer
            astore 5 /* dbb */
        start local 5 // java.nio.MappedByteBuffer dbb
         8: .line 489
            goto 11
        end local 5 // java.nio.MappedByteBuffer dbb
         9: .line 491
      StackMap locals:
      StackMap stack: java.lang.ReflectiveOperationException
            astore 6 /* e */
        start local 6 // java.lang.ReflectiveOperationException e
        10: .line 492
            new java.lang.InternalError
            dup
            aload 6 /* e */
            invokespecial java.lang.InternalError.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 6 // java.lang.ReflectiveOperationException e
        start local 5 // java.nio.MappedByteBuffer dbb
        11: .line 494
      StackMap locals: java.nio.MappedByteBuffer
      StackMap stack:
            aload 5 /* dbb */
            areturn
        end local 5 // java.nio.MappedByteBuffer dbb
        end local 4 // java.lang.Runnable unmapper
        end local 3 // java.io.FileDescriptor fd
        end local 1 // long addr
        end local 0 // int size
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   12     0      size  I
            0   12     1      addr  J
            0   12     3        fd  Ljava/io/FileDescriptor;
            0   12     4  unmapper  Ljava/lang/Runnable;
            8    9     5       dbb  Ljava/nio/MappedByteBuffer;
           11   12     5       dbb  Ljava/nio/MappedByteBuffer;
           10   11     6         e  Ljava/lang/ReflectiveOperationException;
      Exception table:
        from    to  target  type
           2     8       9  Class java.lang.InstantiationException
           2     8       9  Class java.lang.IllegalAccessException
           2     8       9  Class java.lang.reflect.InvocationTargetException
    MethodParameters:
          Name  Flags
      size      
      addr      
      fd        
      unmapper  

  static void checkBufferPositionAligned(java.nio.ByteBuffer, int, int);
    descriptor: (Ljava/nio/ByteBuffer;II)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // java.nio.ByteBuffer bb
        start local 1 // int pos
        start local 2 // int alignment
         0: .line 501
            aload 0 /* bb */
            iload 1 /* pos */
            iload 2 /* alignment */
            invokevirtual java.nio.ByteBuffer.alignmentOffset:(II)I
            ifeq 5
         1: .line 502
            new java.io.IOException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Current location of the bytebuffer ("
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
         2: .line 503
            iload 1 /* pos */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc ") is not a multiple of the block size ("
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
         3: .line 504
            iload 2 /* alignment */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc ")"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
         4: .line 502
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 506
      StackMap locals:
      StackMap stack:
            return
        end local 2 // int alignment
        end local 1 // int pos
        end local 0 // java.nio.ByteBuffer bb
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0         bb  Ljava/nio/ByteBuffer;
            0    6     1        pos  I
            0    6     2  alignment  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
           Name  Flags
      bb         
      pos        
      alignment  

  static void checkRemainingBufferSizeAligned(int, int);
    descriptor: (II)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // int rem
        start local 1 // int alignment
         0: .line 512
            iload 0 /* rem */
            iload 1 /* alignment */
            irem
            ifeq 5
         1: .line 513
            new java.io.IOException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Number of remaining bytes ("
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
         2: .line 514
            iload 0 /* rem */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc ") is not a multiple of the block size ("
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
         3: .line 515
            iload 1 /* alignment */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc ")"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
         4: .line 513
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 517
      StackMap locals:
      StackMap stack:
            return
        end local 1 // int alignment
        end local 0 // int rem
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0        rem  I
            0    6     1  alignment  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
           Name  Flags
      rem        
      alignment  

  static void checkChannelPositionAligned(long, int);
    descriptor: (JI)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // long position
        start local 2 // int alignment
         0: .line 523
            lload 0 /* position */
            iload 2 /* alignment */
            i2l
            lrem
            lconst_0
            lcmp
            ifeq 5
         1: .line 524
            new java.io.IOException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Channel position ("
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            lload 0 /* position */
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
         2: .line 525
            ldc ") is not a multiple of the block size ("
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
         3: .line 526
            iload 2 /* alignment */
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc ")"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
         4: .line 524
            invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 528
      StackMap locals:
      StackMap stack:
            return
        end local 2 // int alignment
        end local 0 // long position
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0   position  J
            0    6     2  alignment  I
    Exceptions:
      throws java.io.IOException
    MethodParameters:
           Name  Flags
      position   
      alignment  
}
SourceFile: "Util.java"
NestMembers:
  sun.nio.ch.Util$1  sun.nio.ch.Util$2  sun.nio.ch.Util$3  sun.nio.ch.Util$4  sun.nio.ch.Util$BufferCache
InnerClasses:
  sun.nio.ch.Util$1
  sun.nio.ch.Util$2
  sun.nio.ch.Util$3
  sun.nio.ch.Util$4
  private BufferCache = sun.nio.ch.Util$BufferCache of sun.nio.ch.Util