https://openjdk.java.net/ 
public interface sun.print.BackgroundServiceLookup
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: sun.print.BackgroundServiceLookup
  super_class: java.lang.Object
{
  public abstract void getServicesInbackground(sun.print.BackgroundLookupListener);
    descriptor: (Lsun/print/BackgroundLookupListener;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
          Name  Flags
      listener  
}
SourceFile: "BackgroundServiceLookup.java"