class javax.swing.JOptionPane$4 extends javax.swing.event.InternalFrameAdapter
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: javax.swing.JOptionPane$4
  super_class: javax.swing.event.InternalFrameAdapter
{
  final javax.swing.JOptionPane this$0;
    descriptor: Ljavax/swing/JOptionPane;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(javax.swing.JOptionPane);
    descriptor: (Ljavax/swing/JOptionPane;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // javax.swing.JOptionPane$4 this
         0: .line 1526
            aload 0 /* this */
            aload 1
            putfield javax.swing.JOptionPane$4.this$0:Ljavax/swing/JOptionPane;
            aload 0 /* this */
            invokespecial javax.swing.event.InternalFrameAdapter.<init>:()V
            return
        end local 0 // javax.swing.JOptionPane$4 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljavax/swing/JOptionPane$4;
    MethodParameters:
        Name  Flags
      this$0  final

  public void internalFrameClosing(javax.swing.event.InternalFrameEvent);
    descriptor: (Ljavax/swing/event/InternalFrameEvent;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // javax.swing.JOptionPane$4 this
        start local 1 // javax.swing.event.InternalFrameEvent e
         0: .line 1528
            aload 0 /* this */
            getfield javax.swing.JOptionPane$4.this$0:Ljavax/swing/JOptionPane;
            invokevirtual javax.swing.JOptionPane.getValue:()Ljava/lang/Object;
            getstatic javax.swing.JOptionPane.UNINITIALIZED_VALUE:Ljava/lang/Object;
            if_acmpne 2
         1: .line 1529
            aload 0 /* this */
            getfield javax.swing.JOptionPane$4.this$0:Ljavax/swing/JOptionPane;
            aconst_null
            invokevirtual javax.swing.JOptionPane.setValue:(Ljava/lang/Object;)V
         2: .line 1531
      StackMap locals:
      StackMap stack:
            return
        end local 1 // javax.swing.event.InternalFrameEvent e
        end local 0 // javax.swing.JOptionPane$4 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Ljavax/swing/JOptionPane$4;
            0    3     1     e  Ljavax/swing/event/InternalFrameEvent;
    MethodParameters:
      Name  Flags
      e     
}
SourceFile: "JOptionPane.java"
EnclosingMethod: javax.swing.JOptionPane.createInternalFrame:(Ljava/awt/Component;Ljava/lang/String;)Ljavax/swing/JInternalFrame;
NestHost: javax.swing.JOptionPane
InnerClasses:
  javax.swing.JOptionPane$4