# Uses of Class
java.nio.file.attribute.UserPrincipalLookupService

Packages that use UserPrincipalLookupService
Package
Description
java.nio.file
Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.

- ## Uses of UserPrincipalLookupService in java.nio.file

  Methods in java.nio.file that return UserPrincipalLookupService
  Modifier and Type
  Method
  Description
  `abstract UserPrincipalLookupService`
  FileSystem.`getUserPrincipalLookupService()`
  Returns the `UserPrincipalLookupService` for this file system (optional operation).