class com.sun.javafx.binding.SetExpressionHelper$SingleSetChange<E> extends com.sun.javafx.binding.SetExpressionHelper<E>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.sun.javafx.binding.SetExpressionHelper$SingleSetChange
  super_class: com.sun.javafx.binding.SetExpressionHelper
{
  private final javafx.collections.SetChangeListener<? super E> listener;
    descriptor: Ljavafx/collections/SetChangeListener;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljavafx/collections/SetChangeListener<-TE;>;

  private javafx.collections.ObservableSet<E> currentValue;
    descriptor: Ljavafx/collections/ObservableSet;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljavafx/collections/ObservableSet<TE;>;

  private void <init>(javafx.beans.value.ObservableSetValue<E>, javafx.collections.SetChangeListener<? super E>);
    descriptor: (Ljavafx/beans/value/ObservableSetValue;Ljavafx/collections/SetChangeListener;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
        start local 1 // javafx.beans.value.ObservableSetValue observable
        start local 2 // javafx.collections.SetChangeListener listener
         0: .line 234
            aload 0 /* this */
            aload 1 /* observable */
            invokespecial com.sun.javafx.binding.SetExpressionHelper.<init>:(Ljavafx/beans/value/ObservableSetValue;)V
         1: .line 235
            aload 0 /* this */
            aload 2 /* listener */
            putfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
         2: .line 236
            aload 0 /* this */
            aload 1 /* observable */
            invokeinterface javafx.beans.value.ObservableSetValue.getValue:()Ljava/lang/Object;
            checkcast javafx.collections.ObservableSet
            putfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.currentValue:Ljavafx/collections/ObservableSet;
         3: .line 237
            return
        end local 2 // javafx.collections.SetChangeListener listener
        end local 1 // javafx.beans.value.ObservableSetValue observable
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0        this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            0    4     1  observable  Ljavafx/beans/value/ObservableSetValue<TE;>;
            0    4     2    listener  Ljavafx/collections/SetChangeListener<-TE;>;
    Signature: (Ljavafx/beans/value/ObservableSetValue<TE;>;Ljavafx/collections/SetChangeListener<-TE;>;)V
    MethodParameters:
            Name  Flags
      observable  
      listener    

  protected com.sun.javafx.binding.SetExpressionHelper<E> addListener(javafx.beans.InvalidationListener);
    descriptor: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/SetExpressionHelper;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
        start local 1 // javafx.beans.InvalidationListener listener
         0: .line 241
            new com.sun.javafx.binding.SetExpressionHelper$Generic
            dup
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.observable:Ljavafx/beans/value/ObservableSetValue;
            aload 1 /* listener */
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            invokespecial com.sun.javafx.binding.SetExpressionHelper$Generic.<init>:(Ljavafx/beans/value/ObservableSetValue;Ljavafx/beans/InvalidationListener;Ljavafx/collections/SetChangeListener;)V
            areturn
        end local 1 // javafx.beans.InvalidationListener listener
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            0    1     1  listener  Ljavafx/beans/InvalidationListener;
    Signature: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/SetExpressionHelper<TE;>;
    MethodParameters:
          Name  Flags
      listener  

  protected com.sun.javafx.binding.SetExpressionHelper<E> removeListener(javafx.beans.InvalidationListener);
    descriptor: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/SetExpressionHelper;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
        start local 1 // javafx.beans.InvalidationListener listener
         0: .line 246
            aload 0 /* this */
            areturn
        end local 1 // javafx.beans.InvalidationListener listener
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            0    1     1  listener  Ljavafx/beans/InvalidationListener;
    Signature: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/SetExpressionHelper<TE;>;
    MethodParameters:
          Name  Flags
      listener  

  protected com.sun.javafx.binding.SetExpressionHelper<E> addListener(javafx.beans.value.ChangeListener<? super javafx.collections.ObservableSet<E>>);
    descriptor: (Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/SetExpressionHelper;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
        start local 1 // javafx.beans.value.ChangeListener listener
         0: .line 251
            new com.sun.javafx.binding.SetExpressionHelper$Generic
            dup
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.observable:Ljavafx/beans/value/ObservableSetValue;
            aload 1 /* listener */
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            invokespecial com.sun.javafx.binding.SetExpressionHelper$Generic.<init>:(Ljavafx/beans/value/ObservableSetValue;Ljavafx/beans/value/ChangeListener;Ljavafx/collections/SetChangeListener;)V
            areturn
        end local 1 // javafx.beans.value.ChangeListener listener
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            0    1     1  listener  Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableSet<TE;>;>;
    Signature: (Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableSet<TE;>;>;)Lcom/sun/javafx/binding/SetExpressionHelper<TE;>;
    MethodParameters:
          Name  Flags
      listener  

  protected com.sun.javafx.binding.SetExpressionHelper<E> removeListener(javafx.beans.value.ChangeListener<? super javafx.collections.ObservableSet<E>>);
    descriptor: (Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/SetExpressionHelper;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
        start local 1 // javafx.beans.value.ChangeListener listener
         0: .line 256
            aload 0 /* this */
            areturn
        end local 1 // javafx.beans.value.ChangeListener listener
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            0    1     1  listener  Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableSet<TE;>;>;
    Signature: (Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableSet<TE;>;>;)Lcom/sun/javafx/binding/SetExpressionHelper<TE;>;
    MethodParameters:
          Name  Flags
      listener  

  protected com.sun.javafx.binding.SetExpressionHelper<E> addListener(javafx.collections.SetChangeListener<? super E>);
    descriptor: (Ljavafx/collections/SetChangeListener;)Lcom/sun/javafx/binding/SetExpressionHelper;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
        start local 1 // javafx.collections.SetChangeListener listener
         0: .line 261
            new com.sun.javafx.binding.SetExpressionHelper$Generic
            dup
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.observable:Ljavafx/beans/value/ObservableSetValue;
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            aload 1 /* listener */
            invokespecial com.sun.javafx.binding.SetExpressionHelper$Generic.<init>:(Ljavafx/beans/value/ObservableSetValue;Ljavafx/collections/SetChangeListener;Ljavafx/collections/SetChangeListener;)V
            areturn
        end local 1 // javafx.collections.SetChangeListener listener
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            0    1     1  listener  Ljavafx/collections/SetChangeListener<-TE;>;
    Signature: (Ljavafx/collections/SetChangeListener<-TE;>;)Lcom/sun/javafx/binding/SetExpressionHelper<TE;>;
    MethodParameters:
          Name  Flags
      listener  

  protected com.sun.javafx.binding.SetExpressionHelper<E> removeListener(javafx.collections.SetChangeListener<? super E>);
    descriptor: (Ljavafx/collections/SetChangeListener;)Lcom/sun/javafx/binding/SetExpressionHelper;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
        start local 1 // javafx.collections.SetChangeListener listener
         0: .line 266
            aload 1 /* listener */
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            invokevirtual java.lang.Object.equals:(Ljava/lang/Object;)Z
            ifeq 1
            aconst_null
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* this */
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.SetExpressionHelper$SingleSetChange
         2: areturn
        end local 1 // javafx.collections.SetChangeListener listener
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            0    3     1  listener  Ljavafx/collections/SetChangeListener<-TE;>;
    Signature: (Ljavafx/collections/SetChangeListener<-TE;>;)Lcom/sun/javafx/binding/SetExpressionHelper<TE;>;
    MethodParameters:
          Name  Flags
      listener  

  protected void fireValueChangedEvent();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=5, args_size=1
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
         0: .line 271
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.currentValue:Ljavafx/collections/ObservableSet;
            astore 1 /* oldValue */
        start local 1 // javafx.collections.ObservableSet oldValue
         1: .line 272
            aload 0 /* this */
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.observable:Ljavafx/beans/value/ObservableSetValue;
            invokeinterface javafx.beans.value.ObservableSetValue.getValue:()Ljava/lang/Object;
            checkcast javafx.collections.ObservableSet
            putfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.currentValue:Ljavafx/collections/ObservableSet;
         2: .line 273
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.currentValue:Ljavafx/collections/ObservableSet;
            aload 1 /* oldValue */
            if_acmpeq 26
         3: .line 274
            new com.sun.javafx.binding.SetExpressionHelper$SimpleChange
            dup
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.observable:Ljavafx/beans/value/ObservableSetValue;
            invokespecial com.sun.javafx.binding.SetExpressionHelper$SimpleChange.<init>:(Ljavafx/collections/ObservableSet;)V
            astore 2 /* change */
        start local 2 // com.sun.javafx.binding.SetExpressionHelper$SimpleChange change
         4: .line 275
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.currentValue:Ljavafx/collections/ObservableSet;
            ifnonnull 10
         5: .line 276
            aload 1 /* oldValue */
            invokeinterface javafx.collections.ObservableSet.iterator:()Ljava/util/Iterator;
            astore 4
            goto 8
      StackMap locals: com.sun.javafx.binding.SetExpressionHelper$SingleSetChange javafx.collections.ObservableSet com.sun.javafx.binding.SetExpressionHelper$SimpleChange top java.util.Iterator
      StackMap stack:
         6: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.Object
            astore 3 /* element */
        start local 3 // java.lang.Object element
         7: .line 277
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            aload 2 /* change */
            aload 3 /* element */
            invokevirtual com.sun.javafx.binding.SetExpressionHelper$SimpleChange.setRemoved:(Ljava/lang/Object;)Lcom/sun/javafx/binding/SetExpressionHelper$SimpleChange;
            invokeinterface javafx.collections.SetChangeListener.onChanged:(Ljavafx/collections/SetChangeListener$Change;)V
        end local 3 // java.lang.Object element
         8: .line 276
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 6
         9: .line 279
            goto 26
      StackMap locals: com.sun.javafx.binding.SetExpressionHelper$SingleSetChange javafx.collections.ObservableSet com.sun.javafx.binding.SetExpressionHelper$SimpleChange
      StackMap stack:
        10: aload 1 /* oldValue */
            ifnonnull 16
        11: .line 280
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.currentValue:Ljavafx/collections/ObservableSet;
            invokeinterface javafx.collections.ObservableSet.iterator:()Ljava/util/Iterator;
            astore 4
            goto 14
      StackMap locals: com.sun.javafx.binding.SetExpressionHelper$SingleSetChange javafx.collections.ObservableSet com.sun.javafx.binding.SetExpressionHelper$SimpleChange top java.util.Iterator
      StackMap stack:
        12: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.Object
            astore 3 /* element */
        start local 3 // java.lang.Object element
        13: .line 281
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            aload 2 /* change */
            aload 3 /* element */
            invokevirtual com.sun.javafx.binding.SetExpressionHelper$SimpleChange.setAdded:(Ljava/lang/Object;)Lcom/sun/javafx/binding/SetExpressionHelper$SimpleChange;
            invokeinterface javafx.collections.SetChangeListener.onChanged:(Ljavafx/collections/SetChangeListener$Change;)V
        end local 3 // java.lang.Object element
        14: .line 280
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 12
        15: .line 283
            goto 26
        16: .line 284
      StackMap locals: com.sun.javafx.binding.SetExpressionHelper$SingleSetChange javafx.collections.ObservableSet com.sun.javafx.binding.SetExpressionHelper$SimpleChange
      StackMap stack:
            aload 1 /* oldValue */
            invokeinterface javafx.collections.ObservableSet.iterator:()Ljava/util/Iterator;
            astore 4
            goto 20
      StackMap locals: com.sun.javafx.binding.SetExpressionHelper$SingleSetChange javafx.collections.ObservableSet com.sun.javafx.binding.SetExpressionHelper$SimpleChange top java.util.Iterator
      StackMap stack:
        17: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.Object
            astore 3 /* element */
        start local 3 // java.lang.Object element
        18: .line 285
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.currentValue:Ljavafx/collections/ObservableSet;
            aload 3 /* element */
            invokeinterface javafx.collections.ObservableSet.contains:(Ljava/lang/Object;)Z
            ifne 20
        19: .line 286
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            aload 2 /* change */
            aload 3 /* element */
            invokevirtual com.sun.javafx.binding.SetExpressionHelper$SimpleChange.setRemoved:(Ljava/lang/Object;)Lcom/sun/javafx/binding/SetExpressionHelper$SimpleChange;
            invokeinterface javafx.collections.SetChangeListener.onChanged:(Ljavafx/collections/SetChangeListener$Change;)V
        end local 3 // java.lang.Object element
        20: .line 284
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 17
        21: .line 289
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.currentValue:Ljavafx/collections/ObservableSet;
            invokeinterface javafx.collections.ObservableSet.iterator:()Ljava/util/Iterator;
            astore 4
            goto 25
      StackMap locals:
      StackMap stack:
        22: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.Object
            astore 3 /* element */
        start local 3 // java.lang.Object element
        23: .line 290
            aload 1 /* oldValue */
            aload 3 /* element */
            invokeinterface javafx.collections.ObservableSet.contains:(Ljava/lang/Object;)Z
            ifne 25
        24: .line 291
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            aload 2 /* change */
            aload 3 /* element */
            invokevirtual com.sun.javafx.binding.SetExpressionHelper$SimpleChange.setAdded:(Ljava/lang/Object;)Lcom/sun/javafx/binding/SetExpressionHelper$SimpleChange;
            invokeinterface javafx.collections.SetChangeListener.onChanged:(Ljavafx/collections/SetChangeListener$Change;)V
        end local 3 // java.lang.Object element
        25: .line 289
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 22
        end local 2 // com.sun.javafx.binding.SetExpressionHelper$SimpleChange change
        26: .line 296
      StackMap locals: com.sun.javafx.binding.SetExpressionHelper$SingleSetChange javafx.collections.ObservableSet
      StackMap stack:
            return
        end local 1 // javafx.collections.ObservableSet oldValue
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   27     0      this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            1   27     1  oldValue  Ljavafx/collections/ObservableSet<TE;>;
            4   26     2    change  Lcom/sun/javafx/binding/SetExpressionHelper$SimpleChange<TE;>;
            7    8     3   element  TE;
           13   14     3   element  TE;
           18   20     3   element  TE;
           23   25     3   element  TE;

  protected void fireValueChangedEvent(javafx.collections.SetChangeListener$Change<? extends E>);
    descriptor: (Ljavafx/collections/SetChangeListener$Change;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
        start local 1 // javafx.collections.SetChangeListener$Change change
         0: .line 300
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.listener:Ljavafx/collections/SetChangeListener;
            new com.sun.javafx.binding.SetExpressionHelper$SimpleChange
            dup
            aload 0 /* this */
            getfield com.sun.javafx.binding.SetExpressionHelper$SingleSetChange.observable:Ljavafx/beans/value/ObservableSetValue;
            aload 1 /* change */
            invokespecial com.sun.javafx.binding.SetExpressionHelper$SimpleChange.<init>:(Ljavafx/collections/ObservableSet;Ljavafx/collections/SetChangeListener$Change;)V
            invokeinterface javafx.collections.SetChangeListener.onChanged:(Ljavafx/collections/SetChangeListener$Change;)V
         1: .line 301
            return
        end local 1 // javafx.collections.SetChangeListener$Change change
        end local 0 // com.sun.javafx.binding.SetExpressionHelper$SingleSetChange this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lcom/sun/javafx/binding/SetExpressionHelper$SingleSetChange<TE;>;
            0    2     1  change  Ljavafx/collections/SetChangeListener$Change<+TE;>;
    Signature: (Ljavafx/collections/SetChangeListener$Change<+TE;>;)V
    MethodParameters:
        Name  Flags
      change  final
}
Signature: <E:Ljava/lang/Object;>Lcom/sun/javafx/binding/SetExpressionHelper<TE;>;
SourceFile: "SetExpressionHelper.java"
NestHost: com.sun.javafx.binding.SetExpressionHelper
InnerClasses:
  private Generic = com.sun.javafx.binding.SetExpressionHelper$Generic of com.sun.javafx.binding.SetExpressionHelper
  public SimpleChange = com.sun.javafx.binding.SetExpressionHelper$SimpleChange of com.sun.javafx.binding.SetExpressionHelper
  private SingleSetChange = com.sun.javafx.binding.SetExpressionHelper$SingleSetChange of com.sun.javafx.binding.SetExpressionHelper
  public abstract Change = javafx.collections.SetChangeListener$Change of javafx.collections.SetChangeListener