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 
public class it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet<K> extends it.unimi.dsi.fastutil.objects.ObjectSets$EmptySet<K> implements it.unimi.dsi.fastutil.objects.ObjectSortedSet<K>, java.io.Serializable, java.lang.Cloneable
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet
  super_class: it.unimi.dsi.fastutil.objects.ObjectSets$EmptySet
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: -7046029254386353129

  protected void <init>();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
         0: .line 43
            aload 0 /* this */
            invokespecial it.unimi.dsi.fastutil.objects.ObjectSets$EmptySet.<init>:()V
         1: .line 44
            return
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;

  public it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator<K> iterator(K);
    descriptor: (Ljava/lang/Object;)Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
        start local 1 // java.lang.Object from
         0: .line 48
            getstatic it.unimi.dsi.fastutil.objects.ObjectIterators.EMPTY_ITERATOR:Lit/unimi/dsi/fastutil/objects/ObjectIterators$EmptyIterator;
            areturn
        end local 1 // java.lang.Object from
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;
            0    1     1  from  TK;
    Signature: (TK;)Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator<TK;>;
    MethodParameters:
      Name  Flags
      from  

  public it.unimi.dsi.fastutil.objects.ObjectSortedSet<K> subSet(K, K);
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=3, args_size=3
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
        start local 1 // java.lang.Object from
        start local 2 // java.lang.Object to
         0: .line 53
            getstatic it.unimi.dsi.fastutil.objects.ObjectSortedSets.EMPTY_SET:Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet;
            areturn
        end local 2 // java.lang.Object to
        end local 1 // java.lang.Object from
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;
            0    1     1  from  TK;
            0    1     2    to  TK;
    Signature: (TK;TK;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet<TK;>;
    MethodParameters:
      Name  Flags
      from  
      to    

  public it.unimi.dsi.fastutil.objects.ObjectSortedSet<K> headSet(K);
    descriptor: (Ljava/lang/Object;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
        start local 1 // java.lang.Object from
         0: .line 58
            getstatic it.unimi.dsi.fastutil.objects.ObjectSortedSets.EMPTY_SET:Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet;
            areturn
        end local 1 // java.lang.Object from
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;
            0    1     1  from  TK;
    Signature: (TK;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet<TK;>;
    MethodParameters:
      Name  Flags
      from  

  public it.unimi.dsi.fastutil.objects.ObjectSortedSet<K> tailSet(K);
    descriptor: (Ljava/lang/Object;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
        start local 1 // java.lang.Object to
         0: .line 63
            getstatic it.unimi.dsi.fastutil.objects.ObjectSortedSets.EMPTY_SET:Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet;
            areturn
        end local 1 // java.lang.Object to
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;
            0    1     1    to  TK;
    Signature: (TK;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet<TK;>;
    MethodParameters:
      Name  Flags
      to    

  public K first();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
         0: .line 67
            new java.util.NoSuchElementException
            dup
            invokespecial java.util.NoSuchElementException.<init>:()V
            athrow
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;
    Signature: ()TK;

  public K last();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
         0: .line 71
            new java.util.NoSuchElementException
            dup
            invokespecial java.util.NoSuchElementException.<init>:()V
            athrow
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;
    Signature: ()TK;

  public java.util.Comparator<? super K> comparator();
    descriptor: ()Ljava/util/Comparator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
         0: .line 75
            aconst_null
            areturn
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;
    Signature: ()Ljava/util/Comparator<-TK;>;

  public java.lang.Object clone();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
         0: .line 79
            getstatic it.unimi.dsi.fastutil.objects.ObjectSortedSets.EMPTY_SET:Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet;
            areturn
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;

  private java.lang.Object readResolve();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
         0: .line 82
            getstatic it.unimi.dsi.fastutil.objects.ObjectSortedSets.EMPTY_SET:Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet;
            areturn
        end local 0 // it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/objects/ObjectSortedSets$EmptySet<TK;>;

  public java.util.SortedSet headSet(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/util/SortedSet;
    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.lang.Object
            invokevirtual it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet.headSet:(Ljava/lang/Object;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public java.util.SortedSet tailSet(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/util/SortedSet;
    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.lang.Object
            invokevirtual it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet.tailSet:(Ljava/lang/Object;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public java.util.SortedSet subSet(java.lang.Object, java.lang.Object);
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/SortedSet;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=3, locals=3, args_size=3
         0: .line 1
            aload 0
            aload 1
            checkcast java.lang.Object
            aload 2
            checkcast java.lang.Object
            invokevirtual it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet.subSet:(Ljava/lang/Object;Ljava/lang/Object;)Lit/unimi/dsi/fastutil/objects/ObjectSortedSet;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: <K:Ljava/lang/Object;>Lit/unimi/dsi/fastutil/objects/ObjectSets$EmptySet<TK;>;Lit/unimi/dsi/fastutil/objects/ObjectSortedSet<TK;>;Ljava/io/Serializable;Ljava/lang/Cloneable;
SourceFile: "ObjectSortedSets.java"
NestHost: it.unimi.dsi.fastutil.objects.ObjectSortedSets
InnerClasses:
  public EmptySet = it.unimi.dsi.fastutil.objects.ObjectSets$EmptySet of it.unimi.dsi.fastutil.objects.ObjectSets
  public EmptySet = it.unimi.dsi.fastutil.objects.ObjectSortedSets$EmptySet of it.unimi.dsi.fastutil.objects.ObjectSortedSets