https://openjdk.java.net/ 
interface sun.awt.X11.OwnershipListener
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: sun.awt.X11.OwnershipListener
  super_class: java.lang.Object
{
  public abstract void ownershipChanged(boolean);
    descriptor: (Z)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
         Name  Flags
      isOwner  final
}
SourceFile: "OwnershipListener.java"