http://fastutil.di.unimi.it/: fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and priority queues with a small memory footprint and fast access and insertion; provides also big (64-bit) arrays, sets and lists, and fast, practical I/O classes for binary and text files.
  • Sebastiano Vigna 
final class it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper implements it.unimi.dsi.fastutil.longs.LongIterator
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper
  super_class: java.lang.Object
{
  private final java.io.DataInput dataInput;
    descriptor: Ljava/io/DataInput;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private boolean toAdvance;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private boolean endOfProcess;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private long next;
    descriptor: J
    flags: (0x0002) ACC_PRIVATE

  public void <init>(java.io.DataInput);
    descriptor: (Ljava/io/DataInput;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper this
        start local 1 // java.io.DataInput dataInput
         0: .line 1828
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 1825
            aload 0 /* this */
            iconst_1
            putfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.toAdvance:Z
         2: .line 1826
            aload 0 /* this */
            iconst_0
            putfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.endOfProcess:Z
         3: .line 1829
            aload 0 /* this */
            aload 1 /* dataInput */
            putfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.dataInput:Ljava/io/DataInput;
         4: .line 1830
            return
        end local 1 // java.io.DataInput dataInput
        end local 0 // it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    5     0       this  Lit/unimi/dsi/fastutil/io/BinIO$LongDataInputWrapper;
            0    5     1  dataInput  Ljava/io/DataInput;
    MethodParameters:
           Name  Flags
      dataInput  final

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper this
         0: .line 1833
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.toAdvance:Z
            ifne 3
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.endOfProcess:Z
            ifeq 1
            iconst_0
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_1
      StackMap locals:
      StackMap stack: int
         2: ireturn
         3: .line 1834
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iconst_0
            putfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.toAdvance:Z
         4: .line 1835
            aload 0 /* this */
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.dataInput:Ljava/io/DataInput;
            invokeinterface java.io.DataInput.readLong:()J
            putfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.next:J
         5: goto 9
         6: .line 1836
      StackMap locals:
      StackMap stack: java.io.EOFException
            pop
            aload 0 /* this */
            iconst_1
            putfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.endOfProcess:Z
            goto 9
         7: .line 1837
      StackMap locals:
      StackMap stack: java.io.IOException
            astore 1 /* rethrow */
        start local 1 // java.io.IOException rethrow
         8: new java.lang.RuntimeException
            dup
            aload 1 /* rethrow */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.io.IOException rethrow
         9: .line 1838
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.endOfProcess:Z
            ifeq 10
            iconst_0
            goto 11
      StackMap locals:
      StackMap stack:
        10: iconst_1
      StackMap locals:
      StackMap stack: int
        11: ireturn
        end local 0 // it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   12     0     this  Lit/unimi/dsi/fastutil/io/BinIO$LongDataInputWrapper;
            8    9     1  rethrow  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           4     5       6  Class java.io.EOFException
           4     5       7  Class java.io.IOException

  public long nextLong();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper this
         0: .line 1842
            aload 0 /* this */
            invokevirtual it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.hasNext:()Z
            ifne 1
            new java.util.NoSuchElementException
            dup
            invokespecial java.util.NoSuchElementException.<init>:()V
            athrow
         1: .line 1843
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iconst_1
            putfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.toAdvance:Z
         2: .line 1844
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper.next:J
            lreturn
        end local 0 // it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lit/unimi/dsi/fastutil/io/BinIO$LongDataInputWrapper;

  public java.lang.Object next();
    descriptor: ()Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokeinterface it.unimi.dsi.fastutil.longs.LongIterator.next:()Ljava/lang/Long;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void forEachRemaining(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            checkcast java.util.function.LongConsumer
            invokeinterface java.util.PrimitiveIterator$OfLong.forEachRemaining:(Ljava/util/function/LongConsumer;)V
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "BinIO.java"
NestHost: it.unimi.dsi.fastutil.io.BinIO
InnerClasses:
  private final LongDataInputWrapper = it.unimi.dsi.fastutil.io.BinIO$LongDataInputWrapper of it.unimi.dsi.fastutil.io.BinIO
  public abstract OfLong = java.util.PrimitiveIterator$OfLong of java.util.PrimitiveIterator