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 interface it.unimi.dsi.fastutil.longs.LongSet extends it.unimi.dsi.fastutil.longs.LongCollection, java.util.Set<java.lang.Long>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: it.unimi.dsi.fastutil.longs.LongSet
  super_class: java.lang.Object
{
  public abstract it.unimi.dsi.fastutil.longs.LongIterator iterator();
    descriptor: ()Lit/unimi/dsi/fastutil/longs/LongIterator;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract boolean remove(long);
    descriptor: (J)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      k     

  public boolean remove(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.longs.LongSet this
        start local 1 // java.lang.Object o
         0: .line 61
            aload 0 /* this */
            aload 1 /* o */
            invokespecial it.unimi.dsi.fastutil.longs.LongCollection.remove:(Ljava/lang/Object;)Z
            ireturn
        end local 1 // java.lang.Object o
        end local 0 // it.unimi.dsi.fastutil.longs.LongSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/longs/LongSet;
            0    1     1     o  Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
      Name  Flags
      o     final

  public boolean add(java.lang.Long);
    descriptor: (Ljava/lang/Long;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.longs.LongSet this
        start local 1 // java.lang.Long o
         0: .line 72
            aload 0 /* this */
            aload 1 /* o */
            invokespecial it.unimi.dsi.fastutil.longs.LongCollection.add:(Ljava/lang/Long;)Z
            ireturn
        end local 1 // java.lang.Long o
        end local 0 // it.unimi.dsi.fastutil.longs.LongSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/longs/LongSet;
            0    1     1     o  Ljava/lang/Long;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
      Name  Flags
      o     final

  public boolean contains(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.longs.LongSet this
        start local 1 // java.lang.Object o
         0: .line 83
            aload 0 /* this */
            aload 1 /* o */
            invokespecial it.unimi.dsi.fastutil.longs.LongCollection.contains:(Ljava/lang/Object;)Z
            ireturn
        end local 1 // java.lang.Object o
        end local 0 // it.unimi.dsi.fastutil.longs.LongSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/longs/LongSet;
            0    1     1     o  Ljava/lang/Object;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
      Name  Flags
      o     final

  public boolean rem(long);
    descriptor: (J)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // it.unimi.dsi.fastutil.longs.LongSet this
        start local 1 // long k
         0: .line 98
            aload 0 /* this */
            lload 1 /* k */
            invokeinterface it.unimi.dsi.fastutil.longs.LongSet.remove:(J)Z
            ireturn
        end local 1 // long k
        end local 0 // it.unimi.dsi.fastutil.longs.LongSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/longs/LongSet;
            0    1     1     k  J
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
      Name  Flags
      k     

  public java.util.Iterator iterator();
    descriptor: ()Ljava/util/Iterator;
    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.LongSet.iterator:()Lit/unimi/dsi/fastutil/longs/LongIterator;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public boolean add(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    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.Long
            invokeinterface it.unimi.dsi.fastutil.longs.LongSet.add:(Ljava/lang/Long;)Z
            ireturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Lit/unimi/dsi/fastutil/longs/LongCollection;Ljava/util/Set<Ljava/lang/Long;>;
SourceFile: "LongSet.java"