public abstract class com.sun.javafx.binding.ExpressionHelper<T> 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.ExpressionHelper
  super_class: com.sun.javafx.binding.ExpressionHelperBase
{
  protected final javafx.beans.value.ObservableValue<T> observable;
    descriptor: Ljavafx/beans/value/ObservableValue;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Signature: Ljavafx/beans/value/ObservableValue<TT;>;

  public static <T> com.sun.javafx.binding.ExpressionHelper<T> addListener(com.sun.javafx.binding.ExpressionHelper<T>, javafx.beans.value.ObservableValue<T>, javafx.beans.InvalidationListener);
    descriptor: (Lcom/sun/javafx/binding/ExpressionHelper;Ljavafx/beans/value/ObservableValue;Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.sun.javafx.binding.ExpressionHelper helper
        start local 1 // javafx.beans.value.ObservableValue observable
        start local 2 // javafx.beans.InvalidationListener listener
         0: .line 50
            aload 1 /* observable */
            ifnull 1
            aload 2 /* listener */
            ifnonnull 2
         1: .line 51
      StackMap locals:
      StackMap stack:
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 53
      StackMap locals:
      StackMap stack:
            aload 1 /* observable */
            invokeinterface javafx.beans.value.ObservableValue.getValue:()Ljava/lang/Object;
            pop
         3: .line 54
            aload 0 /* helper */
            ifnonnull 4
            new com.sun.javafx.binding.ExpressionHelper$SingleInvalidation
            dup
            aload 1 /* observable */
            aload 2 /* listener */
            invokespecial com.sun.javafx.binding.ExpressionHelper$SingleInvalidation.<init>:(Ljavafx/beans/value/ObservableValue;Ljavafx/beans/InvalidationListener;)V
            goto 5
      StackMap locals:
      StackMap stack:
         4: aload 0 /* helper */
            aload 2 /* listener */
            invokevirtual com.sun.javafx.binding.ExpressionHelper.addListener:(Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.ExpressionHelper
         5: areturn
        end local 2 // javafx.beans.InvalidationListener listener
        end local 1 // javafx.beans.value.ObservableValue observable
        end local 0 // com.sun.javafx.binding.ExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0      helper  Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
            0    6     1  observable  Ljavafx/beans/value/ObservableValue<TT;>;
            0    6     2    listener  Ljavafx/beans/InvalidationListener;
    Signature: <T:Ljava/lang/Object;>(Lcom/sun/javafx/binding/ExpressionHelper<TT;>;Ljavafx/beans/value/ObservableValue<TT;>;Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    MethodParameters:
            Name  Flags
      helper      
      observable  
      listener    

  public static <T> com.sun.javafx.binding.ExpressionHelper<T> removeListener(com.sun.javafx.binding.ExpressionHelper<T>, javafx.beans.InvalidationListener);
    descriptor: (Lcom/sun/javafx/binding/ExpressionHelper;Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.ExpressionHelper helper
        start local 1 // javafx.beans.InvalidationListener listener
         0: .line 58
            aload 1 /* listener */
            ifnonnull 2
         1: .line 59
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 61
      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.ExpressionHelper.removeListener:(Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.ExpressionHelper
         4: areturn
        end local 1 // javafx.beans.InvalidationListener listener
        end local 0 // com.sun.javafx.binding.ExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0    helper  Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
            0    5     1  listener  Ljavafx/beans/InvalidationListener;
    Signature: <T:Ljava/lang/Object;>(Lcom/sun/javafx/binding/ExpressionHelper<TT;>;Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    MethodParameters:
          Name  Flags
      helper    
      listener  

  public static <T> com.sun.javafx.binding.ExpressionHelper<T> addListener(com.sun.javafx.binding.ExpressionHelper<T>, javafx.beans.value.ObservableValue<T>, javafx.beans.value.ChangeListener<? super T>);
    descriptor: (Lcom/sun/javafx/binding/ExpressionHelper;Ljavafx/beans/value/ObservableValue;Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/ExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.sun.javafx.binding.ExpressionHelper helper
        start local 1 // javafx.beans.value.ObservableValue observable
        start local 2 // javafx.beans.value.ChangeListener listener
         0: .line 65
            aload 1 /* observable */
            ifnull 1
            aload 2 /* listener */
            ifnonnull 2
         1: .line 66
      StackMap locals:
      StackMap stack:
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 68
      StackMap locals:
      StackMap stack:
            aload 0 /* helper */
            ifnonnull 3
            new com.sun.javafx.binding.ExpressionHelper$SingleChange
            dup
            aload 1 /* observable */
            aload 2 /* listener */
            invokespecial com.sun.javafx.binding.ExpressionHelper$SingleChange.<init>:(Ljavafx/beans/value/ObservableValue;Ljavafx/beans/value/ChangeListener;)V
            goto 4
      StackMap locals:
      StackMap stack:
         3: aload 0 /* helper */
            aload 2 /* listener */
            invokevirtual com.sun.javafx.binding.ExpressionHelper.addListener:(Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/ExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.ExpressionHelper
         4: areturn
        end local 2 // javafx.beans.value.ChangeListener listener
        end local 1 // javafx.beans.value.ObservableValue observable
        end local 0 // com.sun.javafx.binding.ExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    5     0      helper  Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
            0    5     1  observable  Ljavafx/beans/value/ObservableValue<TT;>;
            0    5     2    listener  Ljavafx/beans/value/ChangeListener<-TT;>;
    Signature: <T:Ljava/lang/Object;>(Lcom/sun/javafx/binding/ExpressionHelper<TT;>;Ljavafx/beans/value/ObservableValue<TT;>;Ljavafx/beans/value/ChangeListener<-TT;>;)Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    MethodParameters:
            Name  Flags
      helper      
      observable  
      listener    

  public static <T> com.sun.javafx.binding.ExpressionHelper<T> removeListener(com.sun.javafx.binding.ExpressionHelper<T>, javafx.beans.value.ChangeListener<? super T>);
    descriptor: (Lcom/sun/javafx/binding/ExpressionHelper;Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/ExpressionHelper;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.ExpressionHelper helper
        start local 1 // javafx.beans.value.ChangeListener listener
         0: .line 72
            aload 1 /* listener */
            ifnonnull 2
         1: .line 73
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         2: .line 75
      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.ExpressionHelper.removeListener:(Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/ExpressionHelper;
      StackMap locals:
      StackMap stack: com.sun.javafx.binding.ExpressionHelper
         4: areturn
        end local 1 // javafx.beans.value.ChangeListener listener
        end local 0 // com.sun.javafx.binding.ExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0    helper  Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
            0    5     1  listener  Ljavafx/beans/value/ChangeListener<-TT;>;
    Signature: <T:Ljava/lang/Object;>(Lcom/sun/javafx/binding/ExpressionHelper<TT;>;Ljavafx/beans/value/ChangeListener<-TT;>;)Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    MethodParameters:
          Name  Flags
      helper    
      listener  

  public static <T> void fireValueChangedEvent(com.sun.javafx.binding.ExpressionHelper<T>);
    descriptor: (Lcom/sun/javafx/binding/ExpressionHelper;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.binding.ExpressionHelper helper
         0: .line 79
            aload 0 /* helper */
            ifnull 2
         1: .line 80
            aload 0 /* helper */
            invokevirtual com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent:()V
         2: .line 82
      StackMap locals:
      StackMap stack:
            return
        end local 0 // com.sun.javafx.binding.ExpressionHelper helper
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0  helper  Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    Signature: <T:Ljava/lang/Object;>(Lcom/sun/javafx/binding/ExpressionHelper<TT;>;)V
    MethodParameters:
        Name  Flags
      helper  

  private void <init>(javafx.beans.value.ObservableValue<T>);
    descriptor: (Ljavafx/beans/value/ObservableValue;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.sun.javafx.binding.ExpressionHelper this
        start local 1 // javafx.beans.value.ObservableValue observable
         0: .line 89
            aload 0 /* this */
            invokespecial com.sun.javafx.binding.ExpressionHelperBase.<init>:()V
         1: .line 90
            aload 0 /* this */
            aload 1 /* observable */
            putfield com.sun.javafx.binding.ExpressionHelper.observable:Ljavafx/beans/value/ObservableValue;
         2: .line 91
            return
        end local 1 // javafx.beans.value.ObservableValue observable
        end local 0 // com.sun.javafx.binding.ExpressionHelper this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
            0    3     1  observable  Ljavafx/beans/value/ObservableValue<TT;>;
    Signature: (Ljavafx/beans/value/ObservableValue<TT;>;)V
    MethodParameters:
            Name  Flags
      observable  

  protected abstract com.sun.javafx.binding.ExpressionHelper<T> addListener(javafx.beans.InvalidationListener);
    descriptor: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract com.sun.javafx.binding.ExpressionHelper<T> removeListener(javafx.beans.InvalidationListener);
    descriptor: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/beans/InvalidationListener;)Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract com.sun.javafx.binding.ExpressionHelper<T> addListener(javafx.beans.value.ChangeListener<? super T>);
    descriptor: (Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/ExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/beans/value/ChangeListener<-TT;>;)Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract com.sun.javafx.binding.ExpressionHelper<T> removeListener(javafx.beans.value.ChangeListener<? super T>);
    descriptor: (Ljavafx/beans/value/ChangeListener;)Lcom/sun/javafx/binding/ExpressionHelper;
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
    Signature: (Ljavafx/beans/value/ChangeListener<-TT;>;)Lcom/sun/javafx/binding/ExpressionHelper<TT;>;
    MethodParameters:
          Name  Flags
      listener  

  protected abstract void fireValueChangedEvent();
    descriptor: ()V
    flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
}
Signature: <T:Ljava/lang/Object;>Lcom/sun/javafx/binding/ExpressionHelperBase;
SourceFile: "ExpressionHelper.java"
NestMembers:
  com.sun.javafx.binding.ExpressionHelper$Generic  com.sun.javafx.binding.ExpressionHelper$SingleChange  com.sun.javafx.binding.ExpressionHelper$SingleInvalidation
InnerClasses:
  private Generic = com.sun.javafx.binding.ExpressionHelper$Generic of com.sun.javafx.binding.ExpressionHelper
  private SingleChange = com.sun.javafx.binding.ExpressionHelper$SingleChange of com.sun.javafx.binding.ExpressionHelper
  private SingleInvalidation = com.sun.javafx.binding.ExpressionHelper$SingleInvalidation of com.sun.javafx.binding.ExpressionHelper