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, sorting algorithms, and fast, practical I/O classes for binary and text files.
  • Sebastiano Vigna 
final class it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet extends it.unimi.dsi.fastutil.chars.AbstractCharSet
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet
  super_class: it.unimi.dsi.fastutil.chars.AbstractCharSet
{
  final it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap this$0;
    descriptor: Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private void <init>(it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap);
    descriptor: (Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
         0: .line 1027
            aload 0 /* this */
            aload 1
            putfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            aload 0 /* this */
            invokespecial it.unimi.dsi.fastutil.chars.AbstractCharSet.<init>:()V
            return
        end local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap$KeySet;
    MethodParameters:
        Name  Flags
      this$0  final

  public it.unimi.dsi.fastutil.chars.CharIterator iterator();
    descriptor: ()Lit/unimi/dsi/fastutil/chars/CharIterator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
         0: .line 1030
            new it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeyIterator
            dup
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            invokespecial it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeyIterator.<init>:(Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;)V
            areturn
        end local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap$KeySet;

  public void forEach(java.util.function.IntConsumer);
    descriptor: (Ljava/util/function/IntConsumer;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
        start local 1 // java.util.function.IntConsumer consumer
         0: .line 1035
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.containsNullKey:Z
            ifeq 2
         1: .line 1036
            aload 1 /* consumer */
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.key:[C
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.n:I
            caload
            invokeinterface java.util.function.IntConsumer.accept:(I)V
         2: .line 1037
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.n:I
            istore 2 /* pos */
        start local 2 // int pos
         3: goto 7
         4: .line 1038
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.key:[C
            iload 2 /* pos */
            caload
            istore 3 /* k */
        start local 3 // char k
         5: .line 1039
            iload 3 /* k */
            ifeq 7
         6: .line 1040
            aload 1 /* consumer */
            iload 3 /* k */
            invokeinterface java.util.function.IntConsumer.accept:(I)V
        end local 3 // char k
         7: .line 1037
      StackMap locals:
      StackMap stack:
            iload 2 /* pos */
            iinc 2 /* pos */ -1
            ifne 4
        end local 2 // int pos
         8: .line 1042
            return
        end local 1 // java.util.function.IntConsumer consumer
        end local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    9     0      this  Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap$KeySet;
            0    9     1  consumer  Ljava/util/function/IntConsumer;
            3    8     2       pos  I
            5    7     3         k  C
    MethodParameters:
          Name  Flags
      consumer  final

  public int size();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
         0: .line 1045
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.size:I
            ireturn
        end local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap$KeySet;

  public boolean contains(char);
    descriptor: (C)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
        start local 1 // char k
         0: .line 1049
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            iload 1 /* k */
            invokevirtual it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.containsKey:(C)Z
            ireturn
        end local 1 // char k
        end local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap$KeySet;
            0    1     1     k  C
    MethodParameters:
      Name  Flags
      k     

  public boolean remove(char);
    descriptor: (C)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
        start local 1 // char k
         0: .line 1053
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.size:I
            istore 2 /* oldSize */
        start local 2 // int oldSize
         1: .line 1054
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            iload 1 /* k */
            invokevirtual it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.remove:(C)C
            pop
         2: .line 1055
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.size:I
            iload 2 /* oldSize */
            if_icmpeq 3
            iconst_1
            ireturn
      StackMap locals: int
      StackMap stack:
         3: iconst_0
            ireturn
        end local 2 // int oldSize
        end local 1 // char k
        end local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap$KeySet;
            0    4     1        k  C
            1    4     2  oldSize  I
    MethodParameters:
      Name  Flags
      k     

  public void clear();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
         0: .line 1059
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.this$0:Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap;
            invokevirtual it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap.clear:()V
         1: .line 1060
            return
        end local 0 // it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lit/unimi/dsi/fastutil/chars/Char2CharOpenCustomHashMap$KeySet;

  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
            invokevirtual it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet.iterator:()Lit/unimi/dsi/fastutil/chars/CharIterator;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "Char2CharOpenCustomHashMap.java"
NestHost: it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap
InnerClasses:
  private final KeyIterator = it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeyIterator of it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap
  private final KeySet = it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap$KeySet of it.unimi.dsi.fastutil.chars.Char2CharOpenCustomHashMap