https://openjdk.java.net/ 
public interface jdk.internal.netscape.javascript.spi.JSObjectProvider
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: jdk.internal.netscape.javascript.spi.JSObjectProvider
  super_class: java.lang.Object
{
  public abstract netscape.javascript.JSObject getWindow(java.applet.Applet);
    descriptor: (Ljava/applet/Applet;)Lnetscape/javascript/JSObject;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws netscape.javascript.JSException
    MethodParameters:
        Name  Flags
      applet  
}
SourceFile: "JSObjectProvider.java"