FileSystemException

public class FileSystemException
extends IOException

java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	java.io.IOException
			↳	java.nio.file.FileSystemException

Known direct subclasses

AccessDeniedException, AtomicMoveNotSupportedException, DirectoryNotEmptyException, FileAlreadyExistsException, FileSystemLoopException, NoSuchFileException, NotDirectoryException, NotLinkException

AccessDeniedException	Checked exception thrown when a file system operation is denied, typically due to a file permission or other access check.
AtomicMoveNotSupportedException	Checked exception thrown when a file cannot be moved as an atomic file system operation.
DirectoryNotEmptyException	Checked exception thrown when a file system operation fails because a directory is not empty.
FileAlreadyExistsException	Checked exception thrown when an attempt is made to create a file or directory and a file of that name already exists.
FileSystemLoopException	Checked exception thrown when a file system loop, or cycle, is encountered.
NoSuchFileException	Checked exception thrown when an attempt is made to access a file that does not exist.
NotDirectoryException	Checked exception thrown when a file system operation, intended for a directory, fails because the file is not a directory.
NotLinkException	Checked exception thrown when a file system operation fails because a file is not a symbolic link.

Thrown when a file system operation fails on one or two files. This class is the general class for file system exceptions.

Summary

Public constructors
`FileSystemException(String file)` Constructs an instance of this class.
`FileSystemException(String file, String other, String reason)` Constructs an instance of this class.

Public methods
`String`	`getFile()` Returns the file used to create this exception.
`String`	`getMessage()` Returns the detail message string.
`String`	`getOtherFile()` Returns the other file used to create this exception.
`String`	`getReason()` Returns the string explaining why the file system operation failed.

Inherited methods

From class


        
          java.lang.Throwable

`final void`	`addSuppressed(Throwable exception)` Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.
`Throwable`	`fillInStackTrace()` Fills in the execution stack trace.
`Throwable`	`getCause()` Returns the cause of this throwable or `null` if the cause is nonexistent or unknown.
`String`	`getLocalizedMessage()` Creates a localized description of this throwable.
`String`	`getMessage()` Returns the detail message string of this throwable.
`StackTraceElement[]`	`getStackTrace()` Provides programmatic access to the stack trace information printed by `printStackTrace()`.
`final Throwable[]`	`getSuppressed()` Returns an array containing all of the exceptions that were suppressed, typically by the `try`-with-resources statement, in order to deliver this exception.
`Throwable`	`initCause(Throwable cause)` Initializes the cause of this throwable to the specified value.
`void`	`printStackTrace()` Prints this throwable and its backtrace to the standard error stream.
`void`	`printStackTrace(PrintWriter s)` Prints this throwable and its backtrace to the specified print writer.
`void`	`printStackTrace(PrintStream s)` Prints this throwable and its backtrace to the specified print stream.
`void`	`setStackTrace(StackTraceElement[] stackTrace)` Sets the stack trace elements that will be returned by `getStackTrace()` and printed by `printStackTrace()` and related methods.
`String`	`toString()` Returns a short description of this throwable.

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

FileSystemException

Added in API level 26

public FileSystemException (String file)

Constructs an instance of this class. This constructor should be used when an operation involving one file fails and there isn't any additional information to explain the reason.

Parameters
`file`	`String`: a string identifying the file or `null` if not known.

FileSystemException

Added in API level 26

public FileSystemException (String file, 
                String other, 
                String reason)

Constructs an instance of this class. This constructor should be used when an operation involving two files fails, or there is additional information to explain the reason.

Parameters
`file`	`String`: a string identifying the file or `null` if not known.
`other`	`String`: a string identifying the other file or `null` if there isn't another file or if not known
`reason`	`String`: a reason message with additional information or `null`

Public methods

getFile

Added in API level 26

public String getFile ()

Returns the file used to create this exception.

Returns
`String`	the file (can be `null`)

getMessage

Added in API level 26

public String getMessage ()

Returns the detail message string.

Returns
`String`	the detail message string of this `Throwable` instance (which may be `null`).

getOtherFile

Added in API level 26

public String getOtherFile ()

Returns the other file used to create this exception.

Returns
`String`	the other file (can be `null`)

getReason

Added in API level 26

public String getReason ()

Returns the string explaining why the file system operation failed.

Returns
`String`	the string explaining why the file system operation failed