https://www.graalvm.org/ 
interface com.oracle.truffle.api.library.test.examples.ArrayStrategy2$Array
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.oracle.truffle.api.library.test.examples.ArrayStrategy2$Array
  super_class: java.lang.Object
{
  public abstract int read(int);
    descriptor: (I)I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      index  
}
SourceFile: "ArrayStrategy2.java"
NestHost: com.oracle.truffle.api.library.test.examples.ArrayStrategy2
InnerClasses:
  abstract Array = com.oracle.truffle.api.library.test.examples.ArrayStrategy2$Array of com.oracle.truffle.api.library.test.examples.ArrayStrategy2