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

  public abstract java.nio.file.attribute.GroupPrincipal group();
    descriptor: ()Ljava/nio/file/attribute/GroupPrincipal;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.util.Set<java.nio.file.attribute.PosixFilePermission> permissions();
    descriptor: ()Ljava/util/Set;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/Set<Ljava/nio/file/attribute/PosixFilePermission;>;
}
SourceFile: "PosixFileAttributes.java"