java.lang.Object
- org.apache.maven.shared.utils.io.FileUtils

```
public class FileUtils
extends java.lang.Object
```
This class provides basic facilities for manipulating files and file paths.
Path-related methods
Methods exist to retrieve the components of a typical file path. For example /www/hosted/mysite/index.html, can be broken into:
- /www/hosted/mysite/index -- retrievable through removeExtension(java.lang.String)
- html -- retrievable through getExtension(java.lang.String)
File-related methods

There are methods to create a File from a URL, copy a File to another File, copy a URL's contents to a File, as well as methods to delete and clean a directory.

Common File manipulation routines.

Taken from the commons-utils repo. Also code from Alexandria's FileUtils. And from Avalon Excalibur's IO. And from Ant.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class FileUtils.FilterWrapper
Wrapper class for Filter.

Field Summary

Fields
Modifier and Type	Field	Description
`private static int`	`FILE_COPY_BUFFER_SIZE`	The file copy buffer size (30 MB)
`private static java.lang.String`	`FS`	The vm line separator
`private static java.lang.String[]`	`INVALID_CHARACTERS_FOR_WINDOWS_FILE_NAME`	Non-valid Characters for naming files, folders under Windows: `":", "*", "?", "\"", "<", ">", "\|"`
`private static int`	`ONE_KB`	The number of bytes in a kilobyte.
`private static int`	`ONE_MB`	The number of bytes in a megabyte.

Constructor Summary

Constructors
Modifier Constructor Description

protected FileUtils()
protected constructor.

Method Summary

All Methods Static Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`private static java.util.List<java.lang.String>`	`blendFilesToList(java.util.List<java.lang.String> v, java.lang.String... files)`	Private helper method for getFilesFromExtension()
`private static java.nio.charset.Charset`	`charset(java.lang.String encoding)`	Returns the named charset or the default charset.
`static void`	`cleanDirectory(java.io.File directory)`	Deprecated. use `org.apache.commons.io.FileUtils.cleanDirectory()`
`static boolean`	`contentEquals(java.io.File file1, java.io.File file2)`	Compare the contents of two files to determine if they are equal or not.
`static void`	`copyDirectory(java.io.File sourceDirectory, java.io.File destinationDirectory)`	Deprecated. use `org.apache.commons.io.FileUtils.copyDirectory()`
`static void`	`copyDirectory(java.io.File sourceDirectory, java.io.File destinationDirectory, java.lang.String includes, java.lang.String excludes)`	Deprecated. use `org.apache.commons.io.FileUtils.copyDirectory()`
`static void`	`copyDirectoryStructure(java.io.File sourceDirectory, java.io.File destinationDirectory)`	Deprecated. use `org.apache.commons.io.FileUtils.copyDirectory()`
`private static void`	`copyDirectoryStructure(java.io.File sourceDirectory, java.io.File destinationDirectory, java.io.File rootDestinationDirectory, boolean onlyModifiedFiles)`
`static void`	`copyFile(java.io.File source, java.io.File destination)`	Deprecated. use `java.nio.Files.copy(source.toPath(), destination.toPath(), LinkOption.NOFOLLOW_LINKS, StandardCopyOption.REPLACE_EXISTING)`
`static void`	`copyFile(java.io.File from, java.io.File to, java.lang.String encoding, FileUtils.FilterWrapper... wrappers)`	If wrappers is null or empty, the file will be copied only if to.lastModified() < from.lastModified()
`static void`	`copyFile(java.io.File from, java.io.File to, java.lang.String encoding, FileUtils.FilterWrapper[] wrappers, boolean overwrite)`	If wrappers is null or empty, the file will be copy only if to.lastModified() < from.lastModified() or if overwrite is true
`private static boolean`	`copyFileIfModified(java.io.File source, java.io.File destination)`	Copy file from source to destination only if source timestamp is later than the destination timestamp.
`private static void`	`copyFilePermissions(java.io.File source, java.io.File destination)`	Attempts to copy file permissions from the source to the destination file.
`static void`	`copyFileToDirectory(java.io.File source, java.io.File destinationDirectory)`	Deprecated. use `org.apache.commons.io.FileUtils.copyFileToDirectory()`
`private static void`	`copyFileToDirectoryIfModified(java.io.File source, java.io.File destinationDirectory)`	Copy file from source to destination only if source is newer than the target file.
`private static void`	`copyStreamToFile(java.io.InputStream source, java.io.File destination)`	Deprecated. use `java.nio.Files.copy(source, destination.toPath(), StandardCopyOption.REPLACE_EXISTING)`
`static void`	`copyURLToFile(java.net.URL source, java.io.File destination)`	Deprecated. use `java.nio.Files.copy(source.openStream(), destination.toPath(), StandardCopyOption.REPLACE_EXISTING)`
`static java.io.File`	`createSymbolicLink(java.io.File symlink, java.io.File target)`	Create a new symbolic link, possibly replacing an existing symbolic link.
`static java.io.File`	`createTempFile(java.lang.String prefix, java.lang.String suffix, java.io.File parentDir)`	Deprecated. use `java.nio.Files.createTempFile()`
`static void`	`delete(java.io.File file)`	Deprecated. use `java.nio.files.Files.delete(file.toPath())`
`static void`	`deleteDirectory(java.io.File directory)`	Deprecated. use `org.apache.commons.io.FileUtils.deleteDirectory()`
`static void`	`deleteDirectory(java.lang.String directory)`	Deprecated. use `org.apache.commons.io.FileUtils.deleteDirectory()`
`private static boolean`	`deleteFile(java.io.File file)`	Accommodate Windows bug encountered in both Sun and IBM JDKs.
`static boolean`	`deleteLegacyStyle(java.io.File file)`	Deprecated. use `java.nio.files.Files.delete(file.toPath())`
`static java.lang.String`	`dirname(java.lang.String path)`	Deprecated. use `Paths.get(path).getParent().getName()`
`private static void`	`doCopyFile(java.io.File source, java.io.File destination)`
`static java.lang.String`	`extension(java.lang.String path)`	Deprecated. use `org.apache.commons.io.FilenameUtils.getExtension`
`static void`	`fileAppend(java.lang.String fileName, java.lang.String data)`	Deprecated. use `java.nio.files.Files.write(filename, data.getBytes(), StandardOpenOption.APPEND, StandardOpenOption.CREATE)`
`static void`	`fileAppend(java.lang.String fileName, java.lang.String encoding, java.lang.String data)`	Deprecated. use `java.nio.files.Files.write(filename, data.getBytes(encoding), StandardOpenOption.APPEND, StandardOpenOption.CREATE)`
`static void`	`fileDelete(java.lang.String fileName)`	Deprecated. use `Files.delete(Paths.get(fileName))`
`static boolean`	`fileExists(java.lang.String fileName)`	Deprecated. use `java.io.File.exists()`
`static java.lang.String`	`filename(java.lang.String path)`	Deprecated. use `Paths.get(path).getName()`
`static java.lang.String`	`fileRead(java.io.File file)`	Deprecated. use `new String(java.nio.files.Files.readAllBytes(file.toPath()))`
`static java.lang.String`	`fileRead(java.io.File file, java.lang.String encoding)`	Deprecated. use `new String(java.nio.files.Files.readAllBytes(file.toPath()), encoding)`
`static java.lang.String`	`fileRead(java.lang.String file)`	Deprecated. use `new String(java.nio.files.Files.readAllBytes(file))`
`private static java.lang.String`	`fileRead(java.lang.String file, java.lang.String encoding)`	Deprecated. use `new String(java.nio.files.Files.readAllBytes(Paths.get(file)), encoding)`
`static java.lang.String[]`	`fileReadArray(java.io.File file)`	Deprecated. use `java.nio.files.Files.readAllLines()`
`static void`	`fileWrite(java.io.File file, java.lang.String encoding, java.lang.String data)`	Deprecated. use `java.nio.files.Files.write(file.toPath(), data.getBytes(encoding), StandardOpenOption.CREATE)`
`static void`	`fileWrite(java.lang.String fileName, java.lang.String data)`	Deprecated. use `java.nio.files.Files.write(filename, data.getBytes(), StandardOpenOption.CREATE)`
`static void`	`fileWrite(java.lang.String fileName, java.lang.String encoding, java.lang.String data)`	Deprecated. use `java.nio.files.Files.write(Paths.get(filename), data.getBytes(encoding), StandardOpenOption.CREATE)`
`static void`	`fileWriteArray(java.io.File file, java.lang.String... data)`	Deprecated. use `java.nio.files.Files.write(file.toPath(), data.getBytes(encoding), StandardOpenOption.CREATE)`
`static void`	`fileWriteArray(java.io.File file, java.lang.String encoding, java.lang.String... data)`	Deprecated. use `java.nio.files.Files.write(file.toPath(), data.getBytes(encoding), StandardOpenOption.CREATE)`
`static void`	`forceDelete(java.io.File file)`	Deprecated. use `org.apache.commons.io.FileUtils.deleteQuietly()`
`static void`	`forceDelete(java.lang.String file)`	Deprecated. use `org.apache.commons.io.FileUtils.deleteQuietly()`
`static void`	`forceMkdir(java.io.File file)`	Make a directory.
`static java.lang.String[]`	`getDefaultExcludes()`
`static java.util.List<java.lang.String>`	`getDefaultExcludesAsList()`
`static java.lang.String`	`getDefaultExcludesAsString()`
`static java.util.List<java.lang.String>`	`getDirectoryNames(java.io.File directory, java.lang.String includes, java.lang.String excludes, boolean includeBasedir)`	Return a list of directories as String depending options.
`static java.util.List<java.lang.String>`	`getDirectoryNames(java.io.File directory, java.lang.String includes, java.lang.String excludes, boolean includeBasedir, boolean isCaseSensitive)`	Return a list of directories as Strings.
`static java.lang.String`	`getExtension(java.lang.String filename)`	Deprecated. use `org.apache.commons.io.FilenameUtils.getExtension()`
`static java.util.List<java.lang.String>`	`getFileAndDirectoryNames(java.io.File directory, java.lang.String includes, java.lang.String excludes, boolean includeBasedir, boolean isCaseSensitive, boolean getFiles, boolean getDirectories)`	Return a list of file names as Strings.
`static java.util.List<java.lang.String>`	`getFileNames(java.io.File directory, java.lang.String includes, java.lang.String excludes, boolean includeBasedir)`	Return a list of files as String depending options.
`private static java.util.List<java.lang.String>`	`getFileNames(java.io.File directory, java.lang.String includes, java.lang.String excludes, boolean includeBasedir, boolean isCaseSensitive)`	Return a list of files as String depending options.
`static java.util.List<java.io.File>`	`getFiles(java.io.File directory, java.lang.String includes, java.lang.String excludes)`	Return the files contained in the directory, using inclusion and exclusion Ant patterns, including the directory name in each of the files
`static java.util.List<java.io.File>`	`getFiles(java.io.File directory, java.lang.String includes, java.lang.String excludes, boolean includeBasedir)`	Return the files contained in the directory, using inclusion and exclusion Ant patterns
`static java.lang.String[]`	`getFilesFromExtension(java.lang.String directory, java.lang.String... extensions)`	Given a directory and an array of extensions return an array of compliant files.
`static boolean`	`isSymbolicLink(java.io.File file)`	Deprecated. use `java.nio.file.Files.isSymbolicLink(file.toPath())`
`static boolean`	`isSymbolicLinkForSure(java.io.File file)`	Deprecated. use `java.nio.file.Files.isSymbolicLink(file.toPath())`
`private static boolean`	`isValidFile(java.lang.String file, java.lang.String... extensions)`	Checks to see if a file is of a particular type(s).
`private static boolean`	`isValidWindowsFileName(java.io.File f)`	For Windows OS, check if the file name contains any of the following characters: `":", "*", "?", "\"", "<", ">", "\|"`
`static java.util.List<java.lang.String>`	`loadFile(java.io.File file)`	Deprecated. assumes the platform default character set
`static void`	`mkdir(java.lang.String dir)`	Deprecated. use `java.nio.file.Files.createDirectories(Paths.get(dir))`
`private static void`	`mkdirsFor(java.io.File destination)`
`static java.lang.String`	`normalize(java.lang.String path)`	Deprecated. use `org.apache.commons.io.FileNameUtils.normalize()`
`private static int`	`positiveRandom(java.util.Random rand)`
`static java.lang.String`	`removeExtension(java.lang.String filename)`	Deprecated. use `org.apache.commons.io.FilenameUtils.removeExtension()`
`static void`	`rename(java.io.File from, java.io.File to)`	Deprecated. use `java.nio.Files.move()`
`static java.io.File`	`resolveFile(java.io.File baseFile, java.lang.String filename)`	Resolve a file `filename` to its canonical form.
`static long`	`sizeOfDirectory(java.io.File directory)`	Deprecated. use `org.apache.commons.io.FileUtils.sizeOf()`
`static long`	`sizeOfDirectory(java.lang.String directory)`	Deprecated. use `org.apache.commons.io.FileUtils.sizeOf()`
`static java.io.File`	`toFile(java.net.URL url)`	Convert from a `URL` to a `File`.
`static java.net.URL[]`	`toURLs(java.io.File... files)`	Convert the array of Files into a list of URLs.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - ONE_KB
```
private static final int ONE_KB
```
    The number of bytes in a kilobyte.
    
    See Also:
    
    Constant Field Values
  - ONE_MB
```
private static final int ONE_MB
```
    The number of bytes in a megabyte.
    
    See Also:
    
    Constant Field Values
  - FILE_COPY_BUFFER_SIZE
```
private static final int FILE_COPY_BUFFER_SIZE
```
    The file copy buffer size (30 MB)
    
    See Also:
    
    Constant Field Values
  - FS
```
private static final java.lang.String FS
```
    The vm line separator
  - INVALID_CHARACTERS_FOR_WINDOWS_FILE_NAME
```
private static final java.lang.String[] INVALID_CHARACTERS_FOR_WINDOWS_FILE_NAME
```
    Non-valid Characters for naming files, folders under Windows: ":", "*", "?", "\"", "<", ">", "|"
    
    See Also:
    
    http://support.microsoft.com/?scid=kb%3Ben-us%3B177506&x=12&y=13
- Constructor Detail
  - FileUtils
```
protected FileUtils()
```
    protected constructor.
- Method Detail
  - getDefaultExcludes
```
@Nonnull
public static java.lang.String[] getDefaultExcludes()
```
    Returns:
    
    the default excludes pattern
    
    See Also:
    
    DirectoryScanner.DEFAULTEXCLUDES
  - getDefaultExcludesAsList
```
@Nonnull
public static java.util.List<java.lang.String> getDefaultExcludesAsList()
```
    Returns:
    
    the default excludes pattern as list
    
    See Also:
    
    getDefaultExcludes()
  - getDefaultExcludesAsString
```
@Nonnull
public static java.lang.String getDefaultExcludesAsString()
```
    Returns:
    
    the default excludes pattern as comma separated string.
    
    See Also:
    
    DirectoryScanner.DEFAULTEXCLUDES, StringUtils.join(Object[], String)
  - dirname
```
@Deprecated
@Nonnull
public static java.lang.String dirname(@Nonnull
                                       java.lang.String path)
```
    Deprecated.
    use Paths.get(path).getParent().getName()
    
    Returns the directory path portion of a file specification string. Matches the equally named unix command.
    
    Parameters:
    
    path - the file path
    
    Returns:
    
    the directory portion excluding the ending file separator
  - filename
```
@Deprecated
@Nonnull
public static java.lang.String filename(@Nonnull
                                        java.lang.String path)
```
    Deprecated.
    use Paths.get(path).getName()
    
    Returns the filename portion of a path.
    
    Parameters:
    
    path - the file path
    
    Returns:
    
    the filename string with extension
  - extension
```
@Deprecated
@Nonnull
public static java.lang.String extension(@Nonnull
                                         java.lang.String path)
```
    Deprecated.
    use org.apache.commons.io.FilenameUtils.getExtension
    
    Returns the extension portion of a file path. This is everything after the last dot '.' in the path (NOT including the dot).
    
    Parameters:
    
    path - the file path
    
    Returns:
    
    the extension of the file
  - fileExists
```
@Deprecated
public static boolean fileExists(@Nonnull
                                 java.lang.String fileName)
```
    Deprecated.
    use java.io.File.exists()
    
    Check if a file exists.
    
    Parameters:
    
    fileName - the file path
    
    Returns:
    
    true if file exists
  - fileRead
```
@Deprecated
@Nonnull
public static java.lang.String fileRead(@Nonnull
                                        java.lang.String file)
                                 throws java.io.IOException
```
    Deprecated.
    use new String(java.nio.files.Files.readAllBytes(file))
    
    Note: the file content is read with platform encoding.
    
    Parameters:
    
    file - the file path
    
    Returns:
    
    the file content using the platform encoding
    
    Throws:
    
    java.io.IOException - if any
  - fileRead
```
@Deprecated
@Nonnull
private static java.lang.String fileRead(@Nonnull
                                         java.lang.String file,
                                         @Nullable
                                         java.lang.String encoding)
                                  throws java.io.IOException
```
    Deprecated.
    use new String(java.nio.files.Files.readAllBytes(Paths.get(file)), encoding)
    
    Parameters:
    
    file - the file path
    
    encoding - the wanted encoding
    
    Returns:
    
    the file content using the specified encoding
    
    Throws:
    
    java.io.IOException - if any
  - fileRead
```
@Deprecated
@Nonnull
public static java.lang.String fileRead(@Nonnull
                                        java.io.File file)
                                 throws java.io.IOException
```
    Deprecated.
    use new String(java.nio.files.Files.readAllBytes(file.toPath()))
    
    Note: the file content is read with platform encoding.
    
    Parameters:
    
    file - the file path
    
    Returns:
    
    the file content using the platform encoding
    
    Throws:
    
    java.io.IOException - if any
  - fileRead
```
@Deprecated
@Nonnull
public static java.lang.String fileRead(@Nonnull
                                        java.io.File file,
                                        @Nullable
                                        java.lang.String encoding)
                                 throws java.io.IOException
```
    Deprecated.
    use new String(java.nio.files.Files.readAllBytes(file.toPath()), encoding)
    
    Parameters:
    
    file - the file path
    
    encoding - the wanted encoding
    
    Returns:
    
    the file content using the specified encoding
    
    Throws:
    
    java.io.IOException - if any
  - fileReadArray
```
@Deprecated
@Nonnull
public static java.lang.String[] fileReadArray(@Nonnull
                                               java.io.File file)
                                        throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.readAllLines()
    
    Parameters:
    
    file - the file path
    
    Returns:
    
    the file content lines as String[] using the system default encoding. An empty List if the file doesn't exist.
    
    Throws:
    
    java.io.IOException - in case of failure
  - fileAppend
```
@Deprecated
public static void fileAppend(@Nonnull
                              java.lang.String fileName,
                              @Nonnull
                              java.lang.String data)
                       throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.write(filename, data.getBytes(), StandardOpenOption.APPEND, StandardOpenOption.CREATE)
    
    Appends data to a file. The file is created if it does not exist. Note: the data is written with platform encoding.
    
    Parameters:
    
    fileName - the path of the file to write
    
    data - the content to write to the file
    
    Throws:
    
    java.io.IOException - if any
  - fileAppend
```
@Deprecated
public static void fileAppend(@Nonnull
                              java.lang.String fileName,
                              @Nullable
                              java.lang.String encoding,
                              @Nonnull
                              java.lang.String data)
                       throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.write(filename, data.getBytes(encoding), StandardOpenOption.APPEND, StandardOpenOption.CREATE)
    
    Appends data to a file. The file will be created if it does not exist.
    
    Parameters:
    
    fileName - the path of the file to write
    
    encoding - the encoding of the file
    
    data - the content to write to the file
    
    Throws:
    
    java.io.IOException - if any
  - fileWrite
```
@Deprecated
public static void fileWrite(@Nonnull
                             java.lang.String fileName,
                             @Nonnull
                             java.lang.String data)
                      throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.write(filename, data.getBytes(), StandardOpenOption.CREATE)
    
    Writes data to a file. The file will be created if it does not exist. Note: the data is written with platform encoding
    
    Parameters:
    
    fileName - the path of the file to write
    
    data - the content to write to the file
    
    Throws:
    
    java.io.IOException - if any
  - fileWrite
```
@Deprecated
public static void fileWrite(@Nonnull
                             java.lang.String fileName,
                             @Nullable
                             java.lang.String encoding,
                             @Nonnull
                             java.lang.String data)
                      throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.write(Paths.get(filename), data.getBytes(encoding), StandardOpenOption.CREATE)
    
    Writes data to a file. The file will be created if it does not exist.
    
    Parameters:
    
    fileName - the path of the file to write
    
    encoding - the encoding of the file
    
    data - the content to write to the file
    
    Throws:
    
    java.io.IOException - if any
  - fileWrite
```
@Deprecated
public static void fileWrite(@Nonnull
                             java.io.File file,
                             @Nullable
                             java.lang.String encoding,
                             @Nonnull
                             java.lang.String data)
                      throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.write(file.toPath(), data.getBytes(encoding), StandardOpenOption.CREATE)
    
    Writes data to a file. The file will be created if it does not exist.
    
    Parameters:
    
    file - the path of the file to write
    
    encoding - the encoding of the file
    
    data - the content to write to the file
    
    Throws:
    
    java.io.IOException - if any
  - fileWriteArray
```
@Deprecated
public static void fileWriteArray(@Nonnull
                                  java.io.File file,
                                  @Nullable
                                  java.lang.String... data)
                           throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.write(file.toPath(), data.getBytes(encoding), StandardOpenOption.CREATE)
    
    Writes String array data to a file in the systems default encoding. The file will be created if it does not exist.
    
    Parameters:
    
    file - the path of the file to write
    
    data - the content to write to the file
    
    Throws:
    
    java.io.IOException - if any
  - fileWriteArray
```
@Deprecated
public static void fileWriteArray(@Nonnull
                                  java.io.File file,
                                  @Nullable
                                  java.lang.String encoding,
                                  @Nullable
                                  java.lang.String... data)
                           throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.write(file.toPath(), data.getBytes(encoding), StandardOpenOption.CREATE)
    
    Writes String array data to a file. The file is created if it does not exist.
    
    Parameters:
    
    file - the path of the file to write
    
    encoding - the encoding of the file
    
    data - the content to write to the file
    
    Throws:
    
    java.io.IOException - if any
  - fileDelete
```
@Deprecated
public static void fileDelete(@Nonnull
                              java.lang.String fileName)
```
    Deprecated.
    use Files.delete(Paths.get(fileName))
    
    Deletes a file.
    
    Parameters:
    
    fileName - the path of the file to delete
  - getFilesFromExtension
```
public static java.lang.String[] getFilesFromExtension(@Nonnull
                                                       java.lang.String directory,
                                                       @Nonnull
                                                       java.lang.String... extensions)
```
    Given a directory and an array of extensions return an array of compliant files.
    The given extensions should be like "java" and not like ".java".
    
    Parameters:
    
    directory - the path of the directory
    
    extensions - an array of expected extensions
    
    Returns:
    
    an array of files for the wanted extensions
  - blendFilesToList
```
@Nonnull
private static java.util.List<java.lang.String> blendFilesToList(@Nonnull
                                                                 java.util.List<java.lang.String> v,
                                                                 @Nonnull
                                                                 java.lang.String... files)
```
    Private helper method for getFilesFromExtension()
  - isValidFile
```
private static boolean isValidFile(@Nonnull
                                   java.lang.String file,
                                   @Nonnull
                                   java.lang.String... extensions)
```
    Checks to see if a file is of a particular type(s). Note that if the file does not have an extension, an empty string ("") is matched for.
  - mkdir
```
@Deprecated
public static void mkdir(@Nonnull
                         java.lang.String dir)
```
    Deprecated.
    use java.nio.file.Files.createDirectories(Paths.get(dir))
    
    Simple way to make a directory.
    
    Parameters:
    
    dir - the directory to create
    
    Throws:
    
    java.lang.IllegalArgumentException - if the dir contains illegal Windows characters under Windows OS
    
    See Also:
    
    INVALID_CHARACTERS_FOR_WINDOWS_FILE_NAME
  - contentEquals
```
public static boolean contentEquals(@Nonnull
                                    java.io.File file1,
                                    @Nonnull
                                    java.io.File file2)
                             throws java.io.IOException
```
    Compare the contents of two files to determine if they are equal or not.
    
    Parameters:
    
    file1 - the first file
    
    file2 - the second file
    
    Returns:
    
    true if the content of the files are equal or they both don't exist, false otherwise
    
    Throws:
    
    java.io.IOException - if any
  - toFile
```
@Nullable
public static java.io.File toFile(@Nullable
                                  java.net.URL url)
```
    Convert from a URL to a File.
    
    Parameters:
    
    url - file URL
    
    Returns:
    
    the equivalent File object, or null if the URL's protocol is not file
  - toURLs
```
@Nonnull
public static java.net.URL[] toURLs(@Nonnull
                                    java.io.File... files)
                             throws java.io.IOException
```
    Convert the array of Files into a list of URLs.
    
    Parameters:
    
    files - the array of files
    
    Returns:
    
    the array of URLs
    
    Throws:
    
    java.io.IOException - if an error occurs
  - removeExtension
```
@Deprecated
@Nonnull
public static java.lang.String removeExtension(@Nonnull
                                               java.lang.String filename)
```
    Deprecated.
    use org.apache.commons.io.FilenameUtils.removeExtension()
    Remove extension from a path. E.g.
    foo.txt → foo a\b\c.jpg → a\b\c a\b\c → a\b\c
    Parameters:
    
    filename - the path of the file
    
    Returns:
    
    the filename minus extension
  - getExtension
```
@Deprecated
@Nonnull
public static java.lang.String getExtension(@Nonnull
                                            java.lang.String filename)
```
    Deprecated.
    use org.apache.commons.io.FilenameUtils.getExtension()
    Get extension from a path. E.g.
    foo.txt → "txt" a\b\c.jpg → "jpg" a\b\c → ""
    Parameters:
    
    filename - the path of the file
    
    Returns:
    
    the extension of filename or "" if none
  - copyFileToDirectory
```
@Deprecated
public static void copyFileToDirectory(@Nonnull
                                       java.io.File source,
                                       @Nonnull
                                       java.io.File destinationDirectory)
                                throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.copyFileToDirectory()
    
    Copy file from source to destination. If destinationDirectory does not exist, it (and any parent directories) will be created. If a file source in destinationDirectory exists, it will be overwritten.
    
    Parameters:
    
    source - an existing File to copy
    
    destinationDirectory - a directory to copy source into
    
    Throws:
    
    java.io.FileNotFoundException - if source isn't a normal file
    
    java.lang.IllegalArgumentException - if destinationDirectory isn't a directory
    
    java.io.IOException - if source does not exist, the file in destinationDirectory cannot be written to, or an IO error occurs during copying
  - copyFileToDirectoryIfModified
```
private static void copyFileToDirectoryIfModified(@Nonnull
                                                  java.io.File source,
                                                  @Nonnull
                                                  java.io.File destinationDirectory)
                                           throws java.io.IOException
```
    Copy file from source to destination only if source is newer than the target file. If destinationDirectory does not exist, it (and any parent directories) is created. If a file source in destinationDirectory exists, it is overwritten.
    
    Parameters:
    
    source - an existing File to copy
    
    destinationDirectory - a directory to copy source into
    
    Throws:
    
    java.io.FileNotFoundException - if source isn't a normal file
    
    java.lang.IllegalArgumentException - if destinationDirectory isn't a directory
    
    java.io.IOException - if source does not exist, the file in destinationDirectory cannot be written to, or an IO error occurs during copying
  - copyFile
```
@Deprecated
public static void copyFile(@Nonnull
                            java.io.File source,
                            @Nonnull
                            java.io.File destination)
                     throws java.io.IOException
```
    Deprecated.
    use java.nio.Files.copy(source.toPath(), destination.toPath(), LinkOption.NOFOLLOW_LINKS, StandardCopyOption.REPLACE_EXISTING)
    
    Copy file from source to destination. The directories up to destination will be created if they don't already exist. destination will be overwritten if it already exists.
    
    Parameters:
    
    source - an existing non-directory File to copy bytes from
    
    destination - a non-directory File to write bytes to (possibly overwriting)
    
    Throws:
    
    java.io.IOException - if source does not exist, destination cannot be written to, or an IO error occurs during copying
    
    java.io.FileNotFoundException - if destination is a directory
  - mkdirsFor
```
private static void mkdirsFor(@Nonnull
                              java.io.File destination)
```
  - doCopyFile
```
private static void doCopyFile(@Nonnull
                               java.io.File source,
                               @Nonnull
                               java.io.File destination)
                        throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - copyFileIfModified
```
private static boolean copyFileIfModified(@Nonnull
                                          java.io.File source,
                                          @Nonnull
                                          java.io.File destination)
                                   throws java.io.IOException
```
    Copy file from source to destination only if source timestamp is later than the destination timestamp. The directories up to destination will be created if they don't already exist. destination will be overwritten if it already exists.
    
    Parameters:
    
    source - An existing non-directory File to copy bytes from.
    
    destination - A non-directory File to write bytes to (possibly overwriting).
    
    Returns:
    
    true if no problem occurred
    
    Throws:
    
    java.io.IOException - if source does not exist, destination cannot be written to, or an IO error occurs during copying.
  - copyURLToFile
```
public static void copyURLToFile(@Nonnull
                                 java.net.URL source,
                                 @Nonnull
                                 java.io.File destination)
                          throws java.io.IOException
```
    Deprecated.
    use java.nio.Files.copy(source.openStream(), destination.toPath(), StandardCopyOption.REPLACE_EXISTING)
    
    Copies bytes from the URL source to a file destination. The directories up to destination will be created if they don't already exist. destination will be overwritten if it already exists.
    Parameters:
    
    source - a URL to copy bytes from
    
    destination - a non-directory File to write bytes to (possibly overwriting)
    
    Throws:
    
    java.io.IOException - if
    
    source URL cannot be opened
    
    destination cannot be written to
    
    an IO error occurs during copying
  - copyStreamToFile
```
@Deprecated
private static void copyStreamToFile(@Nonnull @WillClose
                                     java.io.InputStream source,
                                     @Nonnull
                                     java.io.File destination)
                              throws java.io.IOException
```
    Deprecated.
    use java.nio.Files.copy(source, destination.toPath(), StandardCopyOption.REPLACE_EXISTING)
    
    Copies bytes from the InputStream source to a file destination. The directories up to destination will be created if they don't already exist. destination will be overwritten if it already exists.
    Parameters:
    
    source - an InputStream to copy bytes from. This stream is guaranteed to be closed.
    
    destination - a non-directory File to write bytes to (possibly overwriting)
    
    Throws:
    
    java.io.IOException - if
    
    source cannot be opened
    
    destination cannot be written to
    
    an I/O error occurs during copying
  - normalize
```
@Deprecated
@Nonnull
public static java.lang.String normalize(@Nonnull
                                         java.lang.String path)
```
    Deprecated.
    use org.apache.commons.io.FileNameUtils.normalize()
    Normalize a path. Eliminates "/../" and "/./" in a string. Returns null if the ..'s went past the root. Eg:
    /foo// → /foo/ /foo/./ → /foo/ /foo/../bar → /bar /foo/../bar/ → /bar/ /foo/../bar/../baz → /baz //foo//./bar → /foo/bar /../ → null
    Parameters:
    
    path - the path to normalize
    
    Returns:
    
    the normalized String, or null if too many ..'s
  - resolveFile
```
@Nonnull
public static java.io.File resolveFile(java.io.File baseFile,
                                       @Nonnull
                                       java.lang.String filename)
```
    Resolve a file filename to its canonical form. If filename is relative (doesn't start with /), it is resolved relative to baseFile. Otherwise it is treated as a normal root-relative path.
    
    Parameters:
    
    baseFile - where to resolve filename from, if filename is relative
    
    filename - absolute or relative file path to resolve
    
    Returns:
    
    the canonical File of filename
  - forceDelete
```
@Deprecated
public static void forceDelete(@Nonnull
                               java.lang.String file)
                        throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.deleteQuietly()
    
    Delete a file. If file is directory, delete it and all sub-directories.
    
    Parameters:
    
    file - the file path
    
    Throws:
    
    java.io.IOException - if any
  - forceDelete
```
@Deprecated
public static void forceDelete(@Nonnull
                               java.io.File file)
                        throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.deleteQuietly()
    
    Delete a file. If file is directory, delete it and all sub-directories.
    
    Parameters:
    
    file - a file
    
    Throws:
    
    java.io.IOException - if any
  - delete
```
@Deprecated
public static void delete(@Nonnull
                          java.io.File file)
                   throws java.io.IOException
```
    Deprecated.
    use java.nio.files.Files.delete(file.toPath())
    
    Deletes a file.
    
    Parameters:
    
    file - the file to delete
    
    Throws:
    
    java.io.IOException - if the file cannot be deleted
  - deleteLegacyStyle
```
@Deprecated
public static boolean deleteLegacyStyle(@Nonnull
                                        java.io.File file)
```
    Deprecated.
    use java.nio.files.Files.delete(file.toPath())
    
    Parameters:
    
    file - the file
    
    Returns:
    
    true / false
  - deleteFile
```
private static boolean deleteFile(@Nonnull
                                  java.io.File file)
                           throws java.io.IOException
```
    Accommodate Windows bug encountered in both Sun and IBM JDKs. Others possible. If the delete does not work, call System.gc(), wait a little and try again.
    
    Parameters:
    
    file - a file
    
    Throws:
    
    java.io.IOException - if any
  - forceMkdir
```
public static void forceMkdir(@Nonnull
                              java.io.File file)
                       throws java.io.IOException
```
    Make a directory.
    
    Parameters:
    
    file - not null
    
    Throws:
    
    java.io.IOException - if a file already exists with the specified name or the directory is unable to be created
    
    java.lang.IllegalArgumentException - if the file contains illegal Windows characters under Windows OS.
    
    See Also:
    
    INVALID_CHARACTERS_FOR_WINDOWS_FILE_NAME
  - deleteDirectory
```
@Deprecated
public static void deleteDirectory(@Nonnull
                                   java.lang.String directory)
                            throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.deleteDirectory()
    
    Recursively delete a directory.
    
    Parameters:
    
    directory - a directory
    
    Throws:
    
    java.io.IOException - if any
  - deleteDirectory
```
@Deprecated
public static void deleteDirectory(@Nonnull
                                   java.io.File directory)
                            throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.deleteDirectory()
    
    Recursively delete a directory.
    
    Parameters:
    
    directory - a directory
    
    Throws:
    
    java.io.IOException - if any
  - cleanDirectory
```
@Deprecated
public static void cleanDirectory(@Nonnull
                                  java.io.File directory)
                           throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.cleanDirectory()
    
    Remove all files from a directory without deleting it.
    
    Parameters:
    
    directory - a directory
    
    Throws:
    
    java.io.IOException - if any. This can leave cleaning in a half-finished state where some but not all files have been deleted.
  - sizeOfDirectory
```
@Deprecated
public static long sizeOfDirectory(@Nonnull
                                   java.lang.String directory)
```
    Deprecated.
    use org.apache.commons.io.FileUtils.sizeOf()
    
    Recursively count size of a directory.
    
    Parameters:
    
    directory - a directory
    
    Returns:
    
    size of directory in bytes
  - sizeOfDirectory
```
@Deprecated
public static long sizeOfDirectory(@Nonnull
                                   java.io.File directory)
```
    Deprecated.
    use org.apache.commons.io.FileUtils.sizeOf()
    
    Recursively count size of a directory.
    
    Parameters:
    
    directory - a directory
    
    Returns:
    
    size of directory in bytes
  - getFiles
```
@Nonnull
public static java.util.List<java.io.File> getFiles(@Nonnull
                                                    java.io.File directory,
                                                    @Nullable
                                                    java.lang.String includes,
                                                    @Nullable
                                                    java.lang.String excludes)
                                             throws java.io.IOException
```
    Return the files contained in the directory, using inclusion and exclusion Ant patterns, including the directory name in each of the files
    
    Parameters:
    
    directory - the directory to scan
    
    includes - the Ant includes pattern, comma separated
    
    excludes - the Ant excludes pattern, comma separated
    
    Returns:
    
    a list of File objects
    
    Throws:
    
    java.io.IOException - in case of failure.
    
    See Also:
    
    getFileNames(File, String, String, boolean)
  - getFiles
```
@Nonnull
public static java.util.List<java.io.File> getFiles(@Nonnull
                                                    java.io.File directory,
                                                    @Nullable
                                                    java.lang.String includes,
                                                    @Nullable
                                                    java.lang.String excludes,
                                                    boolean includeBasedir)
                                             throws java.io.IOException
```
    Return the files contained in the directory, using inclusion and exclusion Ant patterns
    
    Parameters:
    
    directory - the directory to scan
    
    includes - the includes pattern, comma separated
    
    excludes - the excludes pattern, comma separated
    
    includeBasedir - true to include the base dir in each file
    
    Returns:
    
    a list of File objects
    
    Throws:
    
    java.io.IOException - in case of failure.
    
    See Also:
    
    getFileNames(File, String, String, boolean)
  - getFileNames
```
@Nonnull
public static java.util.List<java.lang.String> getFileNames(@Nonnull
                                                            java.io.File directory,
                                                            @Nullable
                                                            java.lang.String includes,
                                                            @Nullable
                                                            java.lang.String excludes,
                                                            boolean includeBasedir)
                                                     throws java.io.IOException
```
    Return a list of files as String depending options. This method use case sensitive file name.
    
    Parameters:
    
    directory - the directory to scan
    
    includes - the Ant includes pattern, comma separated
    
    excludes - the Ant excludes pattern, comma separated
    
    includeBasedir - true to include the base directory in each String of file
    
    Returns:
    
    a list of file names
    
    Throws:
    
    java.io.IOException - in case of failure
  - getFileNames
```
@Nonnull
private static java.util.List<java.lang.String> getFileNames(@Nonnull
                                                             java.io.File directory,
                                                             @Nullable
                                                             java.lang.String includes,
                                                             @Nullable
                                                             java.lang.String excludes,
                                                             boolean includeBasedir,
                                                             boolean isCaseSensitive)
                                                      throws java.io.IOException
```
    Return a list of files as String depending options.
    
    Parameters:
    
    directory - the directory to scan
    
    includes - the Ant includes pattern, comma separated
    
    excludes - the Ant excludes pattern, comma separated
    
    includeBasedir - true to include the base dir in each String of file
    
    isCaseSensitive - true if case sensitive
    
    Returns:
    
    a list of files as String
    
    Throws:
    
    java.io.IOException
  - getDirectoryNames
```
@Nonnull
public static java.util.List<java.lang.String> getDirectoryNames(@Nonnull
                                                                 java.io.File directory,
                                                                 @Nullable
                                                                 java.lang.String includes,
                                                                 @Nullable
                                                                 java.lang.String excludes,
                                                                 boolean includeBasedir)
                                                          throws java.io.IOException
```
    Return a list of directories as String depending options. This method use case sensitive file name.
    
    Parameters:
    
    directory - the directory to scan
    
    includes - the Ant includes pattern, comma separated
    
    excludes - the Ant excludes pattern, comma separated
    
    includeBasedir - true to include the base dir in each String of file
    
    Returns:
    
    a list of directories as String
    
    Throws:
    
    java.io.IOException - in case of failure.
  - getDirectoryNames
```
@Nonnull
public static java.util.List<java.lang.String> getDirectoryNames(@Nonnull
                                                                 java.io.File directory,
                                                                 @Nullable
                                                                 java.lang.String includes,
                                                                 @Nullable
                                                                 java.lang.String excludes,
                                                                 boolean includeBasedir,
                                                                 boolean isCaseSensitive)
                                                          throws java.io.IOException
```
    Return a list of directories as Strings.
    
    Parameters:
    
    directory - the directory to scan
    
    includes - the Ant includes pattern, comma separated
    
    excludes - the Ant excludes pattern, comma separated
    
    includeBasedir - true to include the base directory in each String of file
    
    isCaseSensitive - true if case sensitive
    
    Returns:
    
    a list of directories as String
    
    Throws:
    
    java.io.IOException - in case of failure
  - getFileAndDirectoryNames
```
@Nonnull
public static java.util.List<java.lang.String> getFileAndDirectoryNames(java.io.File directory,
                                                                        @Nullable
                                                                        java.lang.String includes,
                                                                        @Nullable
                                                                        java.lang.String excludes,
                                                                        boolean includeBasedir,
                                                                        boolean isCaseSensitive,
                                                                        boolean getFiles,
                                                                        boolean getDirectories)
```
    Return a list of file names as Strings.
    
    Parameters:
    
    directory - the directory to scan
    
    includes - the Ant includes pattern, comma separated
    
    excludes - the Ant excludes pattern, comma separated
    
    includeBasedir - true to include the base directory in each String of file
    
    isCaseSensitive - true if case sensitive
    
    getFiles - true to include regular files
    
    getDirectories - true to include directories
    
    Returns:
    
    a list of file names
  - copyDirectory
```
@Deprecated
public static void copyDirectory(@Nonnull
                                 java.io.File sourceDirectory,
                                 @Nonnull
                                 java.io.File destinationDirectory)
                          throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.copyDirectory()
    
    Copy the contents of a directory into another one.
    
    Parameters:
    
    sourceDirectory - the source directory. If the source does not exist, the method simply returns.
    
    destinationDirectory - the target directory; will be created if it doesn't exist
    
    Throws:
    
    java.io.IOException - if any
  - copyDirectory
```
@Deprecated
public static void copyDirectory(@Nonnull
                                 java.io.File sourceDirectory,
                                 @Nonnull
                                 java.io.File destinationDirectory,
                                 @Nullable
                                 java.lang.String includes,
                                 @Nullable
                                 java.lang.String excludes)
                          throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.copyDirectory()
    
    Copy the contents of a directory into another one.
    
    Parameters:
    
    sourceDirectory - the source directory
    
    destinationDirectory - the target directory
    
    includes - Ant include pattern
    
    excludes - Ant exclude pattern
    
    Throws:
    
    java.io.IOException - if the source is a file or cannot be copied
    
    See Also:
    
    getFiles(File, String, String)
  - copyDirectoryStructure
```
@Deprecated
public static void copyDirectoryStructure(@Nonnull
                                          java.io.File sourceDirectory,
                                          @Nonnull
                                          java.io.File destinationDirectory)
                                   throws java.io.IOException
```
    Deprecated.
    use org.apache.commons.io.FileUtils.copyDirectory()
    Copies an entire directory structure.
    Note:
    
    It will include empty directories.
    The sourceDirectory must exist.
    Parameters:
    
    sourceDirectory - the existing directory to be copied
    
    destinationDirectory - the new directory to be created
    
    Throws:
    
    java.io.IOException - if any
  - copyDirectoryStructure
```
private static void copyDirectoryStructure(@Nonnull
                                           java.io.File sourceDirectory,
                                           @Nonnull
                                           java.io.File destinationDirectory,
                                           java.io.File rootDestinationDirectory,
                                           boolean onlyModifiedFiles)
                                    throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - rename
```
@Deprecated
public static void rename(@Nonnull
                          java.io.File from,
                          @Nonnull
                          java.io.File to)
                   throws java.io.IOException
```
    Deprecated.
    use java.nio.Files.move()
    
    Renames a file, even if that involves crossing file system boundaries.
    This will remove to (if it exists), ensure that to's parent directory exists and move from, which involves deleting from as well.
    
    Parameters:
    
    from - the file to move
    
    to - the new file name
    
    Throws:
    
    java.io.IOException - if anything bad happens during this process. Note that to may have been deleted already when this happens.
  - createTempFile
```
@Deprecated
public static java.io.File createTempFile(@Nonnull
                                          java.lang.String prefix,
                                          @Nonnull
                                          java.lang.String suffix,
                                          @Nullable
                                          java.io.File parentDir)
```
    Deprecated.
    use java.nio.Files.createTempFile()
    
    Create a temporary file in a given directory.
    
    The file denoted by the returned abstract pathname did not exist before this method was invoked, any subsequent invocation of this method will yield a different file name.
    
    The filename is prefixNNNNNsuffix where NNNN is a random number
    
    This method is different to File.createTempFile(String, String, File) as it doesn't create the file itself. It uses the location pointed to by java.io.tmpdir when the parentDir attribute is null.
    
    To automatically delete the file created by this method, use the File.deleteOnExit() method.
    
    Parameters:
    
    prefix - prefix before the random number
    
    suffix - file extension; include the '.'
    
    parentDir - directory to create the temporary file in -java.io.tmpdir used if not specified
    
    Returns:
    
    a File reference to the new temporary file.
  - positiveRandom
```
private static int positiveRandom(java.util.Random rand)
```
  - copyFile
```
public static void copyFile(@Nonnull
                            java.io.File from,
                            @Nonnull
                            java.io.File to,
                            @Nullable
                            java.lang.String encoding,
                            @Nullable
                            FileUtils.FilterWrapper... wrappers)
                     throws java.io.IOException
```
    If wrappers is null or empty, the file will be copied only if to.lastModified() < from.lastModified()
    
    Parameters:
    
    from - the file to copy
    
    to - the destination file
    
    encoding - the file output encoding (only if wrappers is not empty)
    
    wrappers - array of FileUtils.FilterWrapper
    
    Throws:
    
    java.io.IOException - if an IO error occurs during copying or filtering
  - copyFile
```
public static void copyFile(@Nonnull
                            java.io.File from,
                            @Nonnull
                            java.io.File to,
                            @Nullable
                            java.lang.String encoding,
                            @Nullable
                            FileUtils.FilterWrapper[] wrappers,
                            boolean overwrite)
                     throws java.io.IOException
```
    If wrappers is null or empty, the file will be copy only if to.lastModified() < from.lastModified() or if overwrite is true
    
    Parameters:
    
    from - the file to copy
    
    to - the destination file
    
    encoding - the file output encoding (only if wrappers is not empty)
    
    wrappers - array of FileUtils.FilterWrapper
    
    overwrite - if true and wrappers is null or empty, the file will be copied even if to.lastModified() < from.lastModified()
    
    Throws:
    
    java.io.IOException - if an IO error occurs during copying or filtering
  - copyFilePermissions
```
private static void copyFilePermissions(@Nonnull
                                        java.io.File source,
                                        @Nonnull
                                        java.io.File destination)
                                 throws java.io.IOException
```
    Attempts to copy file permissions from the source to the destination file. Initially attempts to copy posix file permissions, assuming that the files are both on posix filesystems. If the initial attempts fail then a second attempt using less precise permissions model. Note that permissions are copied on a best-efforts basis, failure to copy permissions will not result in an exception.
    
    Parameters:
    
    source - the file to copy permissions from.
    
    destination - the file to copy permissions to.
    
    Throws:
    
    java.io.IOException
  - loadFile
```
@Deprecated
@Nonnull
public static java.util.List<java.lang.String> loadFile(@Nonnull
                                                        java.io.File file)
                                                 throws java.io.IOException
```
    Deprecated.
    assumes the platform default character set
    
    Note: the file content is read with platform encoding.
    
    Parameters:
    
    file - the file
    
    Returns:
    
    a List containing every every line not starting with # and not empty
    
    Throws:
    
    java.io.IOException - if any
  - charset
```
private static java.nio.charset.Charset charset(java.lang.String encoding)
```
    Returns the named charset or the default charset.
    
    Parameters:
    
    encoding - the name or alias of the charset, null or empty
    
    Returns:
    
    A charset object for the named or default charset.
  - isValidWindowsFileName
```
private static boolean isValidWindowsFileName(@Nonnull
                                              java.io.File f)
```
    For Windows OS, check if the file name contains any of the following characters: ":", "*", "?", "\"", "<", ">", "|"
    
    Parameters:
    
    f - not null file
    
    Returns:
    
    false if the file path contains any of forbidden Windows characters, true if the Os is not Windows or if the file path respect the Windows constraints.
    
    See Also:
    
    INVALID_CHARACTERS_FOR_WINDOWS_FILE_NAME
  - isSymbolicLink
```
@Deprecated
public static boolean isSymbolicLink(@Nonnull
                                     java.io.File file)
                              throws java.io.IOException
```
    Deprecated.
    use java.nio.file.Files.isSymbolicLink(file.toPath())
    
    Checks whether a given file is a symbolic link.
    
    Parameters:
    
    file - the file to check
    
    Returns:
    
    true if symbolic link false otherwise.
    
    Throws:
    
    java.io.IOException - in case of failure.
  - isSymbolicLinkForSure
```
@Deprecated
public static boolean isSymbolicLinkForSure(@Nonnull
                                            java.io.File file)
                                     throws java.io.IOException
```
    Deprecated.
    use java.nio.file.Files.isSymbolicLink(file.toPath())
    
    Checks whether a given file is a symbolic link.
    
    Parameters:
    
    file - the file to check
    
    Returns:
    
    true if and only if we reliably can say this is a symlink
    
    Throws:
    
    java.io.IOException - in case of failure
  - createSymbolicLink
```
@Nonnull
public static java.io.File createSymbolicLink(@Nonnull
                                              java.io.File symlink,
                                              @Nonnull
                                              java.io.File target)
                                       throws java.io.IOException
```
    Create a new symbolic link, possibly replacing an existing symbolic link.
    
    Parameters:
    
    symlink - the link name
    
    target - the target
    
    Returns:
    
    the linked file
    
    Throws:
    
    java.io.IOException - in case of an error
    
    See Also:
    
    which creates a new symbolic link but does not replace existing symbolic links

Class FileUtils

Path-related methods

File-related methods

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ONE_KB

ONE_MB

FILE_COPY_BUFFER_SIZE

FS

INVALID_CHARACTERS_FOR_WINDOWS_FILE_NAME

Constructor Detail

FileUtils

Method Detail

getDefaultExcludes

getDefaultExcludesAsList

getDefaultExcludesAsString

dirname

filename

extension

fileExists

fileRead

fileRead

fileRead

fileRead

fileReadArray

fileAppend

fileAppend

fileWrite

fileWrite

fileWrite

fileWriteArray

fileWriteArray

fileDelete

getFilesFromExtension

blendFilesToList

isValidFile

mkdir

contentEquals

toFile

toURLs

removeExtension

getExtension

copyFileToDirectory

copyFileToDirectoryIfModified

copyFile

mkdirsFor

doCopyFile

copyFileIfModified

copyURLToFile

copyStreamToFile

normalize

resolveFile

forceDelete

forceDelete

delete

deleteLegacyStyle

deleteFile

forceMkdir

deleteDirectory

deleteDirectory

cleanDirectory

sizeOfDirectory

sizeOfDirectory

getFiles

getFiles

getFileNames

getFileNames

getDirectoryNames

getDirectoryNames

getFileAndDirectoryNames

copyDirectory

copyDirectory

copyDirectoryStructure

copyDirectoryStructure

rename

createTempFile