https://openjdk.java.net/projects/openjfx/javafx-base/: OpenJFX JavaFX
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public abstract class com.sun.javafx.binding.MapExpressionHelper<K, V> extends com.sun.javafx.binding.ExpressionHelperBase
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: com.sun.javafx.binding.MapExpressionHelper
  super_class: com.sun.javafx.binding.ExpressionHelperBase
{
  protected final javafx.beans.value.ObservableMapValue<K, V> observable;
    descriptor: Ljavafx/beans/value/ObservableMapValue;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Signature: Ljavafx/beans/value/ObservableMapValue<TK;TV;>;

  public static <K, V> com.sun.javafx.binding.MapExpressionHelper<K, V> addListener(com.sun.javafx.binding.MapExpressionHelper<K, V>, javafx.beans.value.ObservableMapValue<K, V>, javafx.beans.InvalidationListener);
    descriptor: (Lcom/sun/javafx/binding/MapExpressionHelper;Ljavafx/beans/value/ObservableMapValue;Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.sun.javafx.binding.MapExpressionHelper helper
        start local 1 // javafx.beans.value.ObservableMapValue observable
        start local 2 // javafx.beans.InvalidationListener listener
         0: .line 45
            aload 1 /* observable */
            ifnull 1
            aload 2 /* listener */
            ifnonnull 2
         1: .line 46
      StackMap locals:
      StackMap stack:
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 48
      StackMap locals:
      StackMap stack:
            aload 1 /* observable */
            invokeinterface javafx.beans.value.ObservableMapValue.getValue:()Ljava/lang/Object;
            pop
         3: .line 49
            aload 0 /* helper */
            ifnonnull 4
            new com.sun.javafx.binding.MapExpressionHelper$SingleInvalidation
            dup
            aload 1 /* observable */
            aload 2 /* listener */
            invokespecial com.sun.javafx.binding.MapExpressionHelper$SingleInvalidation.<init>:(Ljavafx/beans/value/ObservableMapValue;Ljavafx/beans/InvalidationListener;)V
            goto 5
      StackMap locals:
      StackMap stack:
         4: aload 0 /* helper */
            aload 2 /* listener */
            invokevirtual com.sun.javafx.binding.MapExpressionHelper.addListener:(Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.MapExpressionHelper
         5: areturn
        end local 2 // javafx.beans.InvalidationListener listener
        end local 1 // javafx.beans.value.ObservableMapValue observable
        end local 0 // com.sun.javafx.binding.MapExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0      helper  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
            0    6     1  observable  Ljavafx/beans/value/ObservableMapValue<TK;TV;>;
            0    6     2    listener  Ljavafx/beans/InvalidationListener;
    Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>(Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;Ljavafx/beans/value/ObservableMapValue<TK;TV;>;Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
            Name  Flags
      helper      
      observable  
      listener    

  public static <K, V> com.sun.javafx.binding.MapExpressionHelper<K, V> removeListener(com.sun.javafx.binding.MapExpressionHelper<K, V>, javafx.beans.InvalidationListener);
    descriptor: (Lcom/sun/javafx/binding/MapExpressionHelper;Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.MapExpressionHelper helper
        start local 1 // javafx.beans.InvalidationListener listener
         0: .line 53
            aload 1 /* listener */
            ifnonnull 2
         1: .line 54
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 56
      StackMap locals:
      StackMap stack:
            aload 0 /* helper */
            ifnonnull 3
            aconst_null
            goto 4
      StackMap locals:
      StackMap stack:
         3: aload 0 /* helper */
            aload 1 /* listener */
            invokevirtual com.sun.javafx.binding.MapExpressionHelper.removeListener:(Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.MapExpressionHelper
         4: areturn
        end local 1 // javafx.beans.InvalidationListener listener
        end local 0 // com.sun.javafx.binding.MapExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0    helper  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
            0    5     1  listener  Ljavafx/beans/InvalidationListener;
    Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>(Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      helper    
      listener  

  public static <K, V> com.sun.javafx.binding.MapExpressionHelper<K, V> addListener(com.sun.javafx.binding.MapExpressionHelper<K, V>, javafx.beans.value.ObservableMapValue<K, V>, javafx.beans.value.ChangeListener<? super javafx.collections.ObservableMap<K, V>>);
    descriptor: (Lcom/sun/javafx/binding/MapExpressionHelper;Ljavafx/beans/value/ObservableMapValue;Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.sun.javafx.binding.MapExpressionHelper helper
        start local 1 // javafx.beans.value.ObservableMapValue observable
        start local 2 // javafx.beans.value.ChangeListener listener
         0: .line 60
            aload 1 /* observable */
            ifnull 1
            aload 2 /* listener */
            ifnonnull 2
         1: .line 61
      StackMap locals:
      StackMap stack:
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 63
      StackMap locals:
      StackMap stack:
            aload 0 /* helper */
            ifnonnull 3
            new com.sun.javafx.binding.MapExpressionHelper$SingleChange
            dup
            aload 1 /* observable */
            aload 2 /* listener */
            invokespecial com.sun.javafx.binding.MapExpressionHelper$SingleChange.<init>:(Ljavafx/beans/value/ObservableMapValue;Ljavafx/beans/value/ChangeListener;)V
            goto 4
      StackMap locals:
      StackMap stack:
         3: aload 0 /* helper */
            aload 2 /* listener */
            invokevirtual com.sun.javafx.binding.MapExpressionHelper.addListener:(Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.MapExpressionHelper
         4: areturn
        end local 2 // javafx.beans.value.ChangeListener listener
        end local 1 // javafx.beans.value.ObservableMapValue observable
        end local 0 // com.sun.javafx.binding.MapExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    5     0      helper  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
            0    5     1  observable  Ljavafx/beans/value/ObservableMapValue<TK;TV;>;
            0    5     2    listener  Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableMap<TK;TV;>;>;
    Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>(Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;Ljavafx/beans/value/ObservableMapValue<TK;TV;>;Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableMap<TK;TV;>;>;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
            Name  Flags
      helper      
      observable  
      listener    

  public static <K, V> com.sun.javafx.binding.MapExpressionHelper<K, V> removeListener(com.sun.javafx.binding.MapExpressionHelper<K, V>, javafx.beans.value.ChangeListener<? super javafx.collections.ObservableMap<K, V>>);
    descriptor: (Lcom/sun/javafx/binding/MapExpressionHelper;Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.MapExpressionHelper helper
        start local 1 // javafx.beans.value.ChangeListener listener
         0: .line 67
            aload 1 /* listener */
            ifnonnull 2
         1: .line 68
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 70
      StackMap locals:
      StackMap stack:
            aload 0 /* helper */
            ifnonnull 3
            aconst_null
            goto 4
      StackMap locals:
      StackMap stack:
         3: aload 0 /* helper */
            aload 1 /* listener */
            invokevirtual com.sun.javafx.binding.MapExpressionHelper.removeListener:(Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.MapExpressionHelper
         4: areturn
        end local 1 // javafx.beans.value.ChangeListener listener
        end local 0 // com.sun.javafx.binding.MapExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0    helper  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
            0    5     1  listener  Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableMap<TK;TV;>;>;
    Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>(Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableMap<TK;TV;>;>;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      helper    
      listener  

  public static <K, V> com.sun.javafx.binding.MapExpressionHelper<K, V> addListener(com.sun.javafx.binding.MapExpressionHelper<K, V>, javafx.beans.value.ObservableMapValue<K, V>, javafx.collections.MapChangeListener<? super K, ? super V>);
    descriptor: (Lcom/sun/javafx/binding/MapExpressionHelper;Ljavafx/beans/value/ObservableMapValue;Ljavafx/collections/MapChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.sun.javafx.binding.MapExpressionHelper helper
        start local 1 // javafx.beans.value.ObservableMapValue observable
        start local 2 // javafx.collections.MapChangeListener listener
         0: .line 74
            aload 1 /* observable */
            ifnull 1
            aload 2 /* listener */
            ifnonnull 2
         1: .line 75
      StackMap locals:
      StackMap stack:
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 77
      StackMap locals:
      StackMap stack:
            aload 0 /* helper */
            ifnonnull 3
            new com.sun.javafx.binding.MapExpressionHelper$SingleMapChange
            dup
            aload 1 /* observable */
            aload 2 /* listener */
            invokespecial com.sun.javafx.binding.MapExpressionHelper$SingleMapChange.<init>:(Ljavafx/beans/value/ObservableMapValue;Ljavafx/collections/MapChangeListener;)V
            goto 4
      StackMap locals:
      StackMap stack:
         3: aload 0 /* helper */
            aload 2 /* listener */
            invokevirtual com.sun.javafx.binding.MapExpressionHelper.addListener:(Ljavafx/collections/MapChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.MapExpressionHelper
         4: areturn
        end local 2 // javafx.collections.MapChangeListener listener
        end local 1 // javafx.beans.value.ObservableMapValue observable
        end local 0 // com.sun.javafx.binding.MapExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    5     0      helper  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
            0    5     1  observable  Ljavafx/beans/value/ObservableMapValue<TK;TV;>;
            0    5     2    listener  Ljavafx/collections/MapChangeListener<-TK;-TV;>;
    Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>(Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;Ljavafx/beans/value/ObservableMapValue<TK;TV;>;Ljavafx/collections/MapChangeListener<-TK;-TV;>;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
            Name  Flags
      helper      
      observable  
      listener    

  public static <K, V> com.sun.javafx.binding.MapExpressionHelper<K, V> removeListener(com.sun.javafx.binding.MapExpressionHelper<K, V>, javafx.collections.MapChangeListener<? super K, ? super V>);
    descriptor: (Lcom/sun/javafx/binding/MapExpressionHelper;Ljavafx/collections/MapChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.MapExpressionHelper helper
        start local 1 // javafx.collections.MapChangeListener listener
         0: .line 81
            aload 1 /* listener */
            ifnonnull 2
         1: .line 82
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 84
      StackMap locals:
      StackMap stack:
            aload 0 /* helper */
            ifnonnull 3
            aconst_null
            goto 4
      StackMap locals:
      StackMap stack:
         3: aload 0 /* helper */
            aload 1 /* listener */
            invokevirtual com.sun.javafx.binding.MapExpressionHelper.removeListener:(Ljavafx/collections/MapChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.MapExpressionHelper
         4: areturn
        end local 1 // javafx.collections.MapChangeListener listener
        end local 0 // com.sun.javafx.binding.MapExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0    helper  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
            0    5     1  listener  Ljavafx/collections/MapChangeListener<-TK;-TV;>;
    Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>(Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;Ljavafx/collections/MapChangeListener<-TK;-TV;>;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      helper    
      listener  

  public static <K, V> void fireValueChangedEvent(com.sun.javafx.binding.MapExpressionHelper<K, V>);
    descriptor: (Lcom/sun/javafx/binding/MapExpressionHelper;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.binding.MapExpressionHelper helper
         0: .line 88
            aload 0 /* helper */
            ifnull 2
         1: .line 89
            aload 0 /* helper */
            invokevirtual com.sun.javafx.binding.MapExpressionHelper.fireValueChangedEvent:()V
         2: .line 91
      StackMap locals:
      StackMap stack:
            return
        end local 0 // com.sun.javafx.binding.MapExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0  helper  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>(Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;)V
    MethodParameters:
        Name  Flags
      helper  

  public static <K, V> void fireValueChangedEvent(com.sun.javafx.binding.MapExpressionHelper<K, V>, javafx.collections.MapChangeListener$Change<? extends K, ? extends V>);
    descriptor: (Lcom/sun/javafx/binding/MapExpressionHelper;Ljavafx/collections/MapChangeListener$Change;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.MapExpressionHelper helper
        start local 1 // javafx.collections.MapChangeListener$Change change
         0: .line 94
            aload 0 /* helper */
            ifnull 2
         1: .line 95
            aload 0 /* helper */
            aload 1 /* change */
            invokevirtual com.sun.javafx.binding.MapExpressionHelper.fireValueChangedEvent:(Ljavafx/collections/MapChangeListener$Change;)V
         2: .line 97
      StackMap locals:
      StackMap stack:
            return
        end local 1 // javafx.collections.MapChangeListener$Change change
        end local 0 // com.sun.javafx.binding.MapExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0  helper  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
            0    3     1  change  Ljavafx/collections/MapChangeListener$Change<+TK;+TV;>;
    Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>(Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;Ljavafx/collections/MapChangeListener$Change<+TK;+TV;>;)V
    MethodParameters:
        Name  Flags
      helper  
      change  

  protected void <init>(javafx.beans.value.ObservableMapValue<K, V>);
    descriptor: (Ljavafx/beans/value/ObservableMapValue;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.MapExpressionHelper this
        start local 1 // javafx.beans.value.ObservableMapValue observable
         0: .line 104
            aload 0 /* this */
            invokespecial com.sun.javafx.binding.ExpressionHelperBase.<init>:()V
         1: .line 105
            aload 0 /* this */
            aload 1 /* observable */
            putfield com.sun.javafx.binding.MapExpressionHelper.observable:Ljavafx/beans/value/ObservableMapValue;
         2: .line 106
            return
        end local 1 // javafx.beans.value.ObservableMapValue observable
        end local 0 // com.sun.javafx.binding.MapExpressionHelper this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
            0    3     1  observable  Ljavafx/beans/value/ObservableMapValue<TK;TV;>;
    Signature: (Ljavafx/beans/value/ObservableMapValue<TK;TV;>;)V
    MethodParameters:
            Name  Flags
      observable  

  protected abstract com.sun.javafx.binding.MapExpressionHelper<K, V> addListener(javafx.beans.InvalidationListener);
    descriptor: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract com.sun.javafx.binding.MapExpressionHelper<K, V> removeListener(javafx.beans.InvalidationListener);
    descriptor: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract com.sun.javafx.binding.MapExpressionHelper<K, V> addListener(javafx.beans.value.ChangeListener<? super javafx.collections.ObservableMap<K, V>>);
    descriptor: (Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableMap<TK;TV;>;>;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract com.sun.javafx.binding.MapExpressionHelper<K, V> removeListener(javafx.beans.value.ChangeListener<? super javafx.collections.ObservableMap<K, V>>);
    descriptor: (Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/beans/value/ChangeListener<-Ljavafx/collections/ObservableMap<TK;TV;>;>;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract com.sun.javafx.binding.MapExpressionHelper<K, V> addListener(javafx.collections.MapChangeListener<? super K, ? super V>);
    descriptor: (Ljavafx/collections/MapChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/collections/MapChangeListener<-TK;-TV;>;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract com.sun.javafx.binding.MapExpressionHelper<K, V> removeListener(javafx.collections.MapChangeListener<? super K, ? super V>);
    descriptor: (Ljavafx/collections/MapChangeListener;)Lcom/sun/javafx/binding/MapExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/collections/MapChangeListener<-TK;-TV;>;)Lcom/sun/javafx/binding/MapExpressionHelper<TK;TV;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract void fireValueChangedEvent();
    descriptor: ()V
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT

  protected abstract void fireValueChangedEvent(javafx.collections.MapChangeListener$Change<? extends K, ? extends V>);
    descriptor: (Ljavafx/collections/MapChangeListener$Change;)V
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/collections/MapChangeListener$Change<+TK;+TV;>;)V
    MethodParameters:
        Name  Flags
      change  
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Lcom/sun/javafx/binding/ExpressionHelperBase;
SourceFile: "MapExpressionHelper.java"
NestMembers:
  com.sun.javafx.binding.MapExpressionHelper$Generic  com.sun.javafx.binding.MapExpressionHelper$SimpleChange  com.sun.javafx.binding.MapExpressionHelper$SingleChange  com.sun.javafx.binding.MapExpressionHelper$SingleInvalidation  com.sun.javafx.binding.MapExpressionHelper$SingleMapChange
InnerClasses:
  private Generic = com.sun.javafx.binding.MapExpressionHelper$Generic of com.sun.javafx.binding.MapExpressionHelper
  public SimpleChange = com.sun.javafx.binding.MapExpressionHelper$SimpleChange of com.sun.javafx.binding.MapExpressionHelper
  private SingleChange = com.sun.javafx.binding.MapExpressionHelper$SingleChange of com.sun.javafx.binding.MapExpressionHelper
  private SingleInvalidation = com.sun.javafx.binding.MapExpressionHelper$SingleInvalidation of com.sun.javafx.binding.MapExpressionHelper
  private SingleMapChange = com.sun.javafx.binding.MapExpressionHelper$SingleMapChange of com.sun.javafx.binding.MapExpressionHelper
  public abstract Change = javafx.collections.MapChangeListener$Change of javafx.collections.MapChangeListener