Package java.nio.file.spi
package java.nio.file.spi
Service-provider classes for the 
java.nio.file package.
 Only developers who are defining new file system providers or file type detectors should need to make direct use of this package.
 Unless otherwise noted, passing a null argument to a constructor
 or method in any class or interface in this package will cause a NullPointerException to be thrown.  In some
 cases methods which are specified to throw an IOException may throw
 a more specific optional
 specific exception.
- Since:
- 1.7
- 
ClassesClassDescriptionService-provider class for file systems.A file type detector for probing a file to guess its file type.