FileSystemLoopException (Java SE 25 & JDK 25)
Description: declaration: module: java.base, package: java.nio.file, class: FileSystemLoopException
Keywords: java.nio.file.FileSystemLoopException class

# Class FileSystemLoopException

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

All Implemented Interfaces:
  `Serializable`

public class FileSystemLoopException extends FileSystemException
Checked exception thrown when a file system loop, or cycle, is encountered.

Since:
  1.7
See Also:
  - `Files.walkFileTree(Path, Set, int, FileVisitor)`
  - Serialized Form

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `FileSystemLoopException(String file)`
  Constructs an instance of this class.

- ## Method Summary

  ### Methods declared in class FileSystemException

  `getFile, getMessage, getOtherFile, getReason`

  ### Methods declared in class Throwable

  `addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString`

  ### Methods declared in class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- ## Constructor Details

  - ### FileSystemLoopException

    public FileSystemLoopException(String file)
    Constructs an instance of this class.
    Parameters:
      `file` - a string identifying the file causing the cycle or `null` if not known