https://openjdk.java.net/ 
public interface sun.nio.fs.BasicFileAttributesHolder
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: sun.nio.fs.BasicFileAttributesHolder
  super_class: java.lang.Object
{
  public abstract java.nio.file.attribute.BasicFileAttributes get();
    descriptor: ()Ljava/nio/file/attribute/BasicFileAttributes;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract void invalidate();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "BasicFileAttributesHolder.java"