https://www.graalvm.org/ 
interface com.oracle.truffle.tck.impl.PolyglotEngineWithJavaScript$PointProvider
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.oracle.truffle.tck.impl.PolyglotEngineWithJavaScript$PointProvider
  super_class: java.lang.Object
{
  public abstract java.util.List<com.oracle.truffle.tck.impl.PolyglotEngineWithJavaScript$Point> createPoints();
    descriptor: ()Ljava/util/List;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/List<Lcom/oracle/truffle/tck/impl/PolyglotEngineWithJavaScript$Point;>;
}
SourceFile: "PolyglotEngineWithJavaScript.java"
NestHost: com.oracle.truffle.tck.impl.PolyglotEngineWithJavaScript
InnerClasses:
  abstract Point = com.oracle.truffle.tck.impl.PolyglotEngineWithJavaScript$Point of com.oracle.truffle.tck.impl.PolyglotEngineWithJavaScript
  abstract PointProvider = com.oracle.truffle.tck.impl.PolyglotEngineWithJavaScript$PointProvider of com.oracle.truffle.tck.impl.PolyglotEngineWithJavaScript
    RuntimeVisibleAnnotations: 
      java.lang.FunctionalInterface()