https://www.graalvm.org/ 
public interface com.oracle.truffle.api.object.DynamicObjectFactory
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.oracle.truffle.api.object.DynamicObjectFactory
  super_class: java.lang.Object
{
  public abstract com.oracle.truffle.api.object.DynamicObject newInstance(java.lang.Object[]);
    descriptor: ([Ljava/lang/Object;)Lcom/oracle/truffle/api/object/DynamicObject;
    flags: (0x0481) ACC_PUBLIC, ACC_VARARGS, ACC_ABSTRACT
    MethodParameters:
               Name  Flags
      initialValues  

  public abstract com.oracle.truffle.api.object.Shape getShape();
    descriptor: ()Lcom/oracle/truffle/api/object/Shape;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "DynamicObjectFactory.java"