https://openjdk.java.net/ 
public interface com.apple.eawt.PreferencesHandler
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.apple.eawt.PreferencesHandler
  super_class: java.lang.Object
{
  public abstract void handlePreferences(com.apple.eawt.AppEvent$PreferencesEvent);
    descriptor: (Lcom/apple/eawt/AppEvent$PreferencesEvent;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      e     final
}
SourceFile: "PreferencesHandler.java"
InnerClasses:
  public PreferencesEvent = com.apple.eawt.AppEvent$PreferencesEvent of com.apple.eawt.AppEvent