https://openjdk.java.net/ 
public interface java.beans.PropertyChangeListener extends java.util.EventListener
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: java.beans.PropertyChangeListener
  super_class: java.lang.Object
{
  public abstract void propertyChange(java.beans.PropertyChangeEvent);
    descriptor: (Ljava/beans/PropertyChangeEvent;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      evt   
}
SourceFile: "PropertyChangeListener.java"