https://github.com/eclipse/eclipse-collections/eclipse-collections: Eclipse Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
  • Craig P. Motlin
  • Donald Raab
  • Mohammad A. Rezaei
  • Hiroshi Ito
  • Nikhil J. Nanivadekar 
public class org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator implements java.util.Iterator<org.eclipse.collections.api.tuple.primitive.DoubleObjectPair<V>>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator
  super_class: java.lang.Object
{
  private int count;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int position;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

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

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

  final org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView this$1;
    descriptor: Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  public void <init>(org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView);
    descriptor: (Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator this
         0: .line 4290
            aload 0 /* this */
            aload 1
            putfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.this$1:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator;
    MethodParameters:
        Name  Flags
      this$0  final

  public org.eclipse.collections.api.tuple.primitive.DoubleObjectPair<V> next();
    descriptor: ()Lorg/eclipse/collections/api/tuple/primitive/DoubleObjectPair;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=1
        start local 0 // org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator this
         0: .line 4300
            aload 0 /* this */
            invokevirtual org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.hasNext:()Z
            ifne 2
         1: .line 4302
            new java.util.NoSuchElementException
            dup
            ldc "next() called, but the iterator is exhausted"
            invokespecial java.util.NoSuchElementException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 4304
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            dup
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.count:I
            iconst_1
            iadd
            putfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.count:I
         3: .line 4306
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.handledZero:Z
            ifne 7
         4: .line 4308
            aload 0 /* this */
            iconst_1
            putfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.handledZero:Z
         5: .line 4309
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.this$1:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
            invokestatic org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView.access$0:(Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;)Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap;
            dconst_0
            invokevirtual org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap.containsKey:(D)Z
            ifeq 7
         6: .line 4311
            dconst_0
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.this$1:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
            invokestatic org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView.access$0:(Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;)Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap;
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap.sentinelValues:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$SentinelValues;
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$SentinelValues.zeroValue:Ljava/lang/Object;
            invokestatic org.eclipse.collections.impl.tuple.primitive.PrimitiveTuples.pair:(DLjava/lang/Object;)Lorg/eclipse/collections/api/tuple/primitive/DoubleObjectPair;
            areturn
         7: .line 4314
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.handledOne:Z
            ifne 11
         8: .line 4316
            aload 0 /* this */
            iconst_1
            putfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.handledOne:Z
         9: .line 4317
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.this$1:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
            invokestatic org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView.access$0:(Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;)Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap;
            dconst_1
            invokevirtual org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap.containsKey:(D)Z
            ifeq 11
        10: .line 4319
            dconst_1
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.this$1:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
            invokestatic org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView.access$0:(Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;)Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap;
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap.sentinelValues:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$SentinelValues;
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$SentinelValues.oneValue:Ljava/lang/Object;
            invokestatic org.eclipse.collections.impl.tuple.primitive.PrimitiveTuples.pair:(DLjava/lang/Object;)Lorg/eclipse/collections/api/tuple/primitive/DoubleObjectPair;
            areturn
        11: .line 4323
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.this$1:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
            invokestatic org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView.access$0:(Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;)Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap;
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap.keys:[D
            astore 1 /* keys */
        start local 1 // double[] keys
        12: .line 4324
            goto 14
        13: .line 4326
      StackMap locals: double[]
      StackMap stack:
            aload 0 /* this */
            dup
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.position:I
            iconst_1
            iadd
            putfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.position:I
        14: .line 4324
      StackMap locals:
      StackMap stack:
            aload 1 /* keys */
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.position:I
            daload
            invokestatic org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap.isNonSentinel:(D)Z
            ifeq 13
        15: .line 4328
            aload 1 /* keys */
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.position:I
            daload
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.this$1:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
            invokestatic org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView.access$0:(Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;)Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap;
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap.values:[Ljava/lang/Object;
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.position:I
            aaload
            invokestatic org.eclipse.collections.impl.tuple.primitive.PrimitiveTuples.pair:(DLjava/lang/Object;)Lorg/eclipse/collections/api/tuple/primitive/DoubleObjectPair;
            astore 2 /* result */
        start local 2 // org.eclipse.collections.api.tuple.primitive.DoubleObjectPair result
        16: .line 4329
            aload 0 /* this */
            dup
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.position:I
            iconst_1
            iadd
            putfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.position:I
        17: .line 4330
            aload 2 /* result */
            areturn
        end local 2 // org.eclipse.collections.api.tuple.primitive.DoubleObjectPair result
        end local 1 // double[] keys
        end local 0 // org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   18     0    this  Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator;
           12   18     1    keys  [D
           16   18     2  result  Lorg/eclipse/collections/api/tuple/primitive/DoubleObjectPair<TV;>;
    Signature: ()Lorg/eclipse/collections/api/tuple/primitive/DoubleObjectPair<TV;>;

  public void remove();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator this
         0: .line 4336
            new java.lang.UnsupportedOperationException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Cannot call remove() on "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokevirtual java.lang.Class.getSimpleName:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.lang.UnsupportedOperationException.<init>:(Ljava/lang/String;)V
            athrow
        end local 0 // org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator;

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator this
         0: .line 4342
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.count:I
            aload 0 /* this */
            getfield org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.this$1:Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;
            invokestatic org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView.access$0:(Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView;)Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap;
            invokevirtual org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap.size:()I
            if_icmpeq 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/eclipse/collections/impl/map/mutable/primitive/DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator;

  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
            invokevirtual org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator.next:()Lorg/eclipse/collections/api/tuple/primitive/DoubleObjectPair;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Ljava/util/Iterator<Lorg/eclipse/collections/api/tuple/primitive/DoubleObjectPair<TV;>;>;
SourceFile: "DoubleObjectHashMap.java"
NestHost: org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap
InnerClasses:
  private KeyValuesView = org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView of org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap
  public InternalKeyValuesIterator = org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView$InternalKeyValuesIterator of org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$KeyValuesView
  private final SentinelValues = org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap$SentinelValues of org.eclipse.collections.impl.map.mutable.primitive.DoubleObjectHashMap