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.
Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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