Package: java.io

## [Java] Class File

- java.io.File

-     public class File
      extends Object

  GDK enhancements for File.

  displayName:
    File
  receiverFqcn:
    java.io.File

- - ### Methods Summary

    Methods
    Type Params | Return Type | Name and description
    --- | --- | ---
    `` | `public void` | `append(Object text)` Append the text at the end of the File without writing a BOM.
    `` | `public void` | `append(Object text, boolean writeBom)` Append the text at the end of the File.
    `` | `public void` | `append(Reader reader)` Append the text supplied by the Writer at the end of the File without writing a BOM.
    `` | `public void` | `append(Writer writer)` Append the text supplied by the Writer at the end of the File without writing a BOM.
    `` | `public void` | `append(Writer writer, boolean writeBom)` Append the text supplied by the Writer at the end of the File.
    `` | `public void` | `append(byte[] bytes)` Append bytes to the end of a File.
    `` | `public void` | `append(InputStream stream)` Append binary data to the file.
    `` | `public void` | `append(Object text, String charset)` Append the text at the end of the File without writing a BOM, using a specified encoding.
    `` | `public void` | `append(Object text, String charset, boolean writeBom)` Append the text at the end of the File, using a specified encoding.
    `` | `public void` | `append(Writer writer, String charset)` Append the text supplied by the Writer at the end of the File without writing a BOM, using a specified encoding.
    `` | `public void` | `append(Writer writer, String charset, boolean writeBom)` Append the text supplied by the Writer at the end of the File, using a specified encoding.
    `` | `public void` | `append(Reader reader, boolean writeBom)` Append the text supplied by the Reader at the end of the File, using a specified encoding.
    `` | `public void` | `append(Reader reader, String charset)` Append the text supplied by the Reader at the end of the File without writing a BOM, using a specified encoding.
    `` | `public void` | `append(Reader reader, String charset, boolean writeBom)` Append the text supplied by the Reader at the end of the File, using a specified encoding.
    `` | `public boolean` | `asBoolean()` Coerce the file to a `boolean` value.
    `<T>` | `public T` | `asType(Class<T> c)` Converts this File to a Writable or delegates to default DefaultGroovyMethods#asType(java.lang.Object, java.lang.Class).
    `` | `public File` | `asWritable()` Converts this File to a Writable.
    `` | `public File` | `asWritable(String encoding)` Allows a file to return a Writable implementation that can output itself to a Writer stream.
    `` | `public File` | `createParentDirectories()` Creates, if needed, any parent directories for this File.
    `` | `public static File` | `createTempDir(File self)`
    `` | `public static File` | `createTempDir(File self, String prefix)`
    `` | `public static File` | `createTempDir(File self, String prefix, String suffix)`
    `` | `public boolean` | `deleteDir()` Deletes a directory with all contained files and subdirectories.
    `` | `public long` | `directorySize()` Calculates directory size as total size of all its files, recursively.
    `` | `public void` | `eachByte(Closure closure)` Traverse through each byte of this File
    `` | `public void` | `eachByte(int bufferLen, Closure closure)` Traverse through the bytes of this File, bufferLen bytes at a time.
    `` | `public void` | `eachDir(Closure closure)` Invokes the closure for each subdirectory in this directory, ignoring regular files.
    `` | `public void` | `eachDirMatch(Object nameFilter, Closure closure)` Invokes the closure for each subdirectory whose name (dir.name) matches the given nameFilter in the given directory - calling the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method to determine if a match occurs.
    `` | `public void` | `eachDirRecurse(Closure closure)` Recursively processes each descendant subdirectory in this directory.
    `` | `public void` | `eachFile(FileType fileType, Closure closure)` Invokes the closure for each 'child' file in this 'parent' folder/directory.
    `` | `public void` | `eachFile(Closure closure)` Invokes the closure for each 'child' file in this 'parent' folder/directory.
    `` | `public void` | `eachFileMatch(FileType fileType, Object nameFilter, Closure closure)` Invokes the closure for each file whose name (file.name) matches the given nameFilter in the given directory - calling the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method to determine if a match occurs.
    `` | `public void` | `eachFileMatch(Object nameFilter, Closure closure)` Invokes the closure for each file whose name (file.name) matches the given nameFilter in the given directory - calling the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method to determine if a match occurs.
    `` | `public void` | `eachFileRecurse(FileType fileType, Closure closure)` Processes each descendant file in this directory and any subdirectories.
    `` | `public void` | `eachFileRecurse(Closure closure)` Processes each descendant file in this directory and any subdirectories.
    `<T>` | `public T` | `eachLine(Closure<T> closure)` Iterates through this file line by line.
    `<T>` | `public T` | `eachLine(String charset, Closure<T> closure)` Iterates through this file line by line.
    `<T>` | `public T` | `eachLine(int firstLine, Closure<T> closure)` Iterates through this file line by line.
    `<T>` | `public T` | `eachLine(String charset, int firstLine, Closure<T> closure)` Iterates through this file line by line.
    `` | `public void` | `eachObject(Closure closure)` Iterates through the given file object by object.
    `` | `public Writable` | `filterLine(Closure closure)` Filters the lines of a File and creates a Writable in return to stream the filtered lines.
    `` | `public Writable` | `filterLine(String charset, Closure closure)` Filters the lines of a File and creates a Writable in return to stream the filtered lines.
    `` | `public void` | `filterLine(Writer writer, Closure closure)` Filter the lines from this File, and write them to the given writer based on the given closure predicate.
    `` | `public void` | `filterLine(Writer writer, String charset, Closure closure)` Filter the lines from this File, and write them to the given writer based on the given closure predicate.
    `` | `public String` | `getBaseName()` Provide the file's name without an extension.
    `` | `public byte[]` | `getBytes()` Read the content of the File and returns it as a byte[].
    `` | `public String` | `getExtension()` Provide the extension of this file.
    `` | `public String` | `getText(String charset)` Read the content of the File using the specified encoding and return it as a String.
    `` | `public String` | `getText()` Read the content of the File and returns it as a String.
    `` | `public File` | `leftShift(Object text)` Write the text to the File.
    `` | `public File` | `leftShift(byte[] bytes)` Write bytes to a File.
    `` | `public File` | `leftShift(InputStream data)` Append binary data to the file.
    `` | `public DataInputStream` | `newDataInputStream()` Create a data input stream for this file
    `` | `public DataOutputStream` | `newDataOutputStream()` Creates a new data output stream for this file.
    `` | `public BufferedInputStream` | `newInputStream()` Creates a buffered input stream for this file.
    `` | `public ObjectInputStream` | `newObjectInputStream()` Create an object input stream for this file.
    `` | `public ObjectInputStream` | `newObjectInputStream(ClassLoader classLoader)` Create an object input stream for this file using the given class loader.
    `` | `public ObjectOutputStream` | `newObjectOutputStream()` Create an object output stream for this file.
    `` | `public BufferedOutputStream` | `newOutputStream()` Create a buffered output stream for this file.
    `` | `public PrintWriter` | `newPrintWriter()` Create a new PrintWriter for this file.
    `` | `public PrintWriter` | `newPrintWriter(String charset)` Create a new PrintWriter for this file, using specified charset.
    `` | `public BufferedReader` | `newReader()` Create a buffered reader for this file.
    `` | `public BufferedReader` | `newReader(String charset)` Create a buffered reader for this file, using the specified charset as the encoding.
    `` | `public BufferedWriter` | `newWriter()` Create a buffered writer for this file.
    `` | `public BufferedWriter` | `newWriter(boolean append)` Creates a buffered writer for this file, optionally appending to the existing file content.
    `` | `public BufferedWriter` | `newWriter(String charset, boolean append)` Helper method to create a buffered writer for a file without writing a BOM.
    `` | `public BufferedWriter` | `newWriter(String charset, boolean append, boolean writeBom)` Helper method to create a buffered writer for a file.
    `` | `public BufferedWriter` | `newWriter(String charset)` Creates a buffered writer for this file, writing data without writing a BOM, using a specified encoding.
    `` | `public byte[]` | `readBytes()` Reads the content of the file into a byte array.
    `` | `public List<String>` | `readLines()` Reads the file into a list of Strings, with one item for each line.
    `` | `public List<String>` | `readLines(String charset)` Reads the file into a list of Strings, with one item for each line.
    `` | `public String` | `relativePath(File to)` Relative path to file.
    `` | `public boolean` | `renameTo(String newPathName)` Renames the file.
    `` | `public void` | `setBytes(byte[] bytes)` Write the bytes from the byte array to the File.
    `` | `public void` | `setText(String text)` Synonym for write(text) allowing file.text = 'foo'.
    `` | `public void` | `setText(String text, String charset)` Synonym for write(text, charset) allowing:
         myFile.setText('some text', charset)
    or with some help from `ExpandoMetaClass`, you could do something like:
         myFile.metaClass.setText = { String s -> delegate.setText(s, 'UTF-8') }
         myfile.text = 'some text'
    `` | `public long` | `size()` Provide the standard Groovy `size()` method for `File`.
    `<T>` | `public T` | `splitEachLine(String regex, Closure<T> closure)` Iterates through this file line by line, splitting each line using the given regex separator.
    `<T>` | `public T` | `splitEachLine(Pattern pattern, Closure<T> closure)` Iterates through this file line by line, splitting each line using the given separator Pattern.
    `<T>` | `public T` | `splitEachLine(String regex, String charset, Closure<T> closure)` Iterates through this file line by line, splitting each line using the given regex separator.
    `<T>` | `public T` | `splitEachLine(Pattern pattern, String charset, Closure<T> closure)` Iterates through this file line by line, splitting each line using the given regex separator Pattern.
    `` | `public void` | `traverse(Map<String, ?> options, Closure closure)` Processes each descendant file in this directory and any subdirectories.
    `` | `public void` | `traverse(Closure closure)` Processes each descendant file in this directory and any subdirectories.
    `` | `public void` | `traverse(Map<String, ?> options)` Invokes the closure specified with key 'visit' in the options Map for each descendant file in this directory tree.
    `<T>` | `public T` | `withDataInputStream(Closure<T> closure)` Create a new DataInputStream for this file and passes it into the closure.
    `<T>` | `public T` | `withDataOutputStream(Closure<T> closure)` Create a new DataOutputStream for this file and passes it into the closure.
    `` | `public Object` | `withInputStream(Closure closure)` Create a new InputStream for this file and passes it into the closure.
    `<T>` | `public T` | `withObjectInputStream(Closure<T> closure)` Create a new ObjectInputStream for this file and pass it to the closure.
    `<T>` | `public T` | `withObjectInputStream(ClassLoader classLoader, Closure<T> closure)` Create a new ObjectInputStream for this file associated with the given class loader and pass it to the closure.
    `<T>` | `public T` | `withObjectOutputStream(Closure<T> closure)` Create a new ObjectOutputStream for this file and then pass it to the closure.
    `` | `public Object` | `withOutputStream(Closure closure)` Creates a new OutputStream for this file and passes it into the closure.
    `<T>` | `public T` | `withPrintWriter(Closure<T> closure)` Create a new PrintWriter for this file which is then passed it into the given closure.
    `<T>` | `public T` | `withPrintWriter(String charset, Closure<T> closure)` Create a new PrintWriter with a specified charset for this file.
    `<T>` | `public T` | `withReader(Closure<T> closure)` Create a new BufferedReader for this file and then passes it into the closure, ensuring the reader is closed after the closure returns.
    `<T>` | `public T` | `withReader(String charset, Closure<T> closure)` Create a new BufferedReader for this file using the specified charset and then passes it into the closure, ensuring the reader is closed after the closure returns.
    `<T>` | `public T` | `withWriter(Closure<T> closure)` Creates a new BufferedWriter for this file, passes it to the closure, and ensures the stream is flushed and closed after the closure returns.
    `<T>` | `public T` | `withWriter(String charset, Closure<T> closure)` Creates a new BufferedWriter for this file, passes it to the closure, and ensures the stream is flushed and closed after the closure returns.
    `<T>` | `public T` | `withWriterAppend(String charset, Closure<T> closure)` Create a new BufferedWriter which will append to this file.
    `<T>` | `public T` | `withWriterAppend(Closure<T> closure)` Create a new BufferedWriter for this file in append mode.
    `` | `public void` | `write(String text)` Write the text to the File without writing a BOM.
    `` | `public void` | `write(String text, boolean writeBom)` Write the text to the File.
    `` | `public void` | `write(String text, String charset)` Write the text to the File without writing a BOM, using the specified encoding.
    `` | `public void` | `write(String text, String charset, boolean writeBom)` Write the text to the File, using the specified encoding.

  - ### Inherited Methods Summary

    Inherited Methods
    Methods inherited from class | Name
    --- | ---
    `class Object` | `addShutdownHook, any, any, asBoolean, asType, clamp, clamp, collect, collect, collect, dump, each, eachMatch, eachMatch, eachWithIndex, every, every, find, find, findAll, findAll, findIndexOf, findIndexOf, findIndexValues, findIndexValues, findLastIndexOf, findLastIndexOf, findResult, findResult, findResult, findResult, getAt, getMetaClass, getMetaPropertyValues, getProperties, grep, grep, hasProperty, identity, inject, inject, inspect, invokeMethod, is, isCase, isNotCase, iterator, metaClass, print, print, printf, printf, println, println, println, putAt, respondsTo, respondsTo, setMetaClass, sleep, sleep, split, sprintf, sprintf, stream, takeIf, tap, toString, use, use, use, with, with, withCloseable, withCloseable, withMethodClosure, withStream, withStream, withTraits`

- - ### Method Detail

    - #### public void append(Object text)

      Append the text at the end of the File without writing a BOM.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to append at the end of the File
      Since:
        1.0

    - #### public void append(Object text, boolean writeBom)

      Append the text at the end of the File. If the default charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias) and `writeBom` is `true`, the requisite byte order mark is written to the file before the text.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to append at the end of the File
        `writeBom` - whether to write a BOM
      Since:
        2.5.0

    - #### public void append(Reader reader)

      Append the text supplied by the Writer at the end of the File without writing a BOM.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `reader` - the Reader supplying the text to append at the end of the File
      Since:
        2.3

    - #### public void append(Writer writer)

      Append the text supplied by the Writer at the end of the File without writing a BOM.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `writer` - the Writer supplying the text to append at the end of the File
      Since:
        2.3

    - #### public void append(Writer writer, boolean writeBom)

      Append the text supplied by the Writer at the end of the File. If the default charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias) and `writeBom` is `true`, the requisite byte order mark is written to the file before the text.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `writer` - the Writer supplying the text to append at the end of the File
        `writeBom` - whether to write a BOM
      Since:
        2.5.0

    - #### public void append(byte[] bytes)

      Append bytes to the end of a File. It will not be interpreted as text.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `bytes` - the byte array to append to the end of the File
      Since:
        1.5.1

    - #### public void append(InputStream stream)

      Append binary data to the file. It will not be interpreted as text.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `stream` - stream to read data from.
      Since:
        1.5.0

    - #### public void append(Object text, String charset)

      Append the text at the end of the File without writing a BOM, using a specified encoding.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to append at the end of the File
        `charset` - the charset used
      Since:
        1.0

    - #### public void append(Object text, String charset, boolean writeBom)

      Append the text at the end of the File, using a specified encoding. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), `writeBom` is `true`, and the file doesn't already exist, the requisite byte order mark is written to the file before the text is appended.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to append at the end of the File
        `charset` - the charset used
        `writeBom` - whether to write a BOM
      Since:
        2.5.0

    - #### public void append(Writer writer, String charset)

      Append the text supplied by the Writer at the end of the File without writing a BOM, using a specified encoding.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `writer` - the Writer supplying the text to append at the end of the File
        `charset` - the charset used
      Since:
        2.3

    - #### public void append(Writer writer, String charset, boolean writeBom)

      Append the text supplied by the Writer at the end of the File, using a specified encoding. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), `writeBom` is `true`, and the file doesn't already exist, the requisite byte order mark is written to the file before the text is appended.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `writer` - the Writer supplying the text to append at the end of the File
        `charset` - the charset used
        `writeBom` - whether to write a BOM
      Since:
        2.5.0

    - #### public void append(Reader reader, boolean writeBom)

      Append the text supplied by the Reader at the end of the File, using a specified encoding. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), `writeBom` is `true`, and the file doesn't already exist, the requisite byte order mark is written to the file before the text is appended.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `reader` - the Reader supplying the text to append at the end of the File
        `writeBom` - whether to write a BOM
      Since:
        2.5.0

    - #### public void append(Reader reader, String charset)

      Append the text supplied by the Reader at the end of the File without writing a BOM, using a specified encoding.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `reader` - the Reader supplying the text to append at the end of the File
        `charset` - the charset used
      Since:
        2.3

    - #### public void append(Reader reader, String charset, boolean writeBom)

      Append the text supplied by the Reader at the end of the File, using a specified encoding. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), `writeBom` is `true`, and the file doesn't already exist, the requisite byte order mark is written to the file before the text is appended.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `reader` - the Reader supplying the text to append at the end of the File
        `charset` - the charset used
        `writeBom` - whether to write a BOM
      Since:
        2.5.0

    - #### public boolean asBoolean()

      Coerce the file to a `boolean` value.

      By default this returns whether the file exists. Set the system property `groovy.truth.file.exists.enabled` to `false` to restore the pre-Groovy-5 behavior where any non-`null` `File` is truthy regardless of whether the underlying file exists.

      Returns:
        `true` if the file exists, `false` otherwise
      Since:
        5.0.0

    - #### <T> public T asType(Class<T> c)

      Converts this File to a Writable or delegates to default DefaultGroovyMethods#asType(java.lang.Object, java.lang.Class).

      Parameters:
        `c` - the desired class
      Returns:
        the converted object
      Since:
        1.0

    - #### public File asWritable()

      Converts this File to a Writable.

      Returns:
        a File which wraps the input file and which implements Writable
      Since:
        1.0

    - #### public File asWritable(String encoding)

      Allows a file to return a Writable implementation that can output itself to a Writer stream.

      Parameters:
        `encoding` - the encoding to be used when reading the file's contents
      Returns:
        File which wraps the input file and which implements Writable
      Since:
        1.0

    - #### public File createParentDirectories()

      Creates, if needed, any parent directories for this File.

      throws:
        IOException if the parent directories couldn't be created
      Returns:
        itself

    - #### public static File createTempDir(File self)

    - #### public static File createTempDir(File self, String prefix)

    - #### public static File createTempDir(File self, String prefix, String suffix)

    - #### public boolean deleteDir()

      Deletes a directory with all contained files and subdirectories.

      The method returns

      - true, when deletion was successful
      - true, when it is called for a non existing directory
      - false, when it is called for a file which isn't a directory
      - false, when directory couldn't be deleted
      Returns:
        true if the file doesn't exist or deletion was successful
      Since:
        1.6.0

    - #### public long directorySize()

      Calculates directory size as total size of all its files, recursively.

      throws:
        IOException if File object specified does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Returns:
        directory size (length)
      Since:
        2.1

    - #### public void eachByte(Closure closure)

      Traverse through each byte of this File

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      See Also:
        IOGroovyMethods#eachByte(java.io.InputStream, groovy.lang.Closure)
      Since:
        1.0

    - #### public void eachByte(int bufferLen, Closure closure)

      Traverse through the bytes of this File, bufferLen bytes at a time.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `bufferLen` - the length of the buffer to use.
        `closure` - a 2 parameter closure which is passed the byte[] and a number of bytes successfully read.
      See Also:
        IOGroovyMethods#eachByte(java.io.InputStream, int, groovy.lang.Closure)
      Since:
        1.7.4

    - #### public void eachDir(Closure closure)

      Invokes the closure for each subdirectory in this directory, ignoring regular files.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `closure` - a closure (the parameter passed is the subdirectory file)
      See Also:
        File.listFiles
        eachFile(java.io.File, groovy.io.FileType, groovy.lang.Closure)
      Since:
        1.0

    - #### public void eachDirMatch(Object nameFilter, Closure closure)

      Invokes the closure for each subdirectory whose name (dir.name) matches the given nameFilter in the given directory - calling the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method to determine if a match occurs. This method can be used with different kinds of filters like regular expressions, classes, ranges etc. Only subdirectories are matched; regular files are ignored.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `nameFilter` - the nameFilter to perform on the name of the directory (using the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method)
        `closure` - the closure to invoke
      See Also:
        eachFileMatch(java.io.File, groovy.io.FileType, java.lang.Object, groovy.lang.Closure)
      Since:
        1.5.0

    - #### public void eachDirRecurse(Closure closure)

      Recursively processes each descendant subdirectory in this directory. Processing consists of calling `closure` passing it the current subdirectory and then recursively processing that subdirectory. Regular files are ignored during traversal.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `closure` - a closure
      See Also:
        eachFileRecurse(java.io.File, groovy.io.FileType, groovy.lang.Closure)
      Since:
        1.5.0

    - #### public void eachFile(FileType fileType, Closure closure)

      Invokes the closure for each 'child' file in this 'parent' folder/directory. Both regular files and subfolders/subdirectories can be processed depending on the fileType enum value.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `fileType` - if normal files or directories or both should be processed
        `closure` - the closure to invoke
      Since:
        1.7.1

    - #### public void eachFile(Closure closure)

      Invokes the closure for each 'child' file in this 'parent' folder/directory. Both regular files and subfolders/subdirectories are processed.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `closure` - a closure (the parameter passed is the 'child' file)
      See Also:
        File.listFiles
        eachFile(java.io.File, groovy.io.FileType, groovy.lang.Closure)
      Since:
        1.5.0

    - #### public void eachFileMatch(FileType fileType, Object nameFilter, Closure closure)

      Invokes the closure for each file whose name (file.name) matches the given nameFilter in the given directory - calling the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method to determine if a match occurs. This method can be used with different kinds of filters like regular expressions, classes, ranges etc. Both regular files and subdirectories may be candidates for matching depending on the value of fileType.

           // collect names of files in baseDir matching supplied regex pattern
           import static groovy.io.FileType.*
           def names = []
           baseDir.eachFileMatch FILES, ~/foo\d\.txt/, { names << it.name }
           assert names == ['foo1.txt', 'foo2.txt']

           // remove all *.bak files in baseDir
           baseDir.eachFileMatch FILES, ~/.*\.bak/, { File bak -> bak.delete() }

           // print out files > 4K in size from baseDir
           baseDir.eachFileMatch FILES, { new File(baseDir, it).size() > 4096 }, { println "$it.name ${it.size()}" }

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `fileType` - whether normal files or directories or both should be processed
        `nameFilter` - the filter to perform on the name of the file/directory (using the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method)
        `closure` - the closure to invoke
      Since:
        1.7.1

    - #### public void eachFileMatch(Object nameFilter, Closure closure)

      Invokes the closure for each file whose name (file.name) matches the given nameFilter in the given directory - calling the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method to determine if a match occurs. This method can be used with different kinds of filters like regular expressions, classes, ranges etc. Both regular files and subdirectories are matched.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `nameFilter` - the nameFilter to perform on the name of the file (using the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method)
        `closure` - the closure to invoke
      See Also:
        eachFileMatch(java.io.File, groovy.io.FileType, java.lang.Object, groovy.lang.Closure)
      Since:
        1.5.0

    - #### public void eachFileRecurse(FileType fileType, Closure closure)

      Processes each descendant file in this directory and any subdirectories. Processing consists of potentially calling `closure` passing it the current file (which may be a normal file or subdirectory) and then if a subdirectory was encountered, recursively processing the subdirectory. Whether the closure is called is determined by whether the file was a normal file or subdirectory and the value of fileType.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `fileType` - if normal files or directories or both should be processed
        `closure` - the closure to invoke on each file
      Since:
        1.7.1

    - #### public void eachFileRecurse(Closure closure)

      Processes each descendant file in this directory and any subdirectories. Processing consists of calling `closure` passing it the current file (which may be a normal file or subdirectory) and then if a subdirectory was encountered, recursively processing the subdirectory.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `closure` - a Closure
      See Also:
        eachFileRecurse(java.io.File, groovy.io.FileType, groovy.lang.Closure)
      Since:
        1.0

    - #### <T> public T eachLine(Closure<T> closure)

      Iterates through this file line by line. Each line is passed to the given 1 or 2 arg closure. The file is read using a reader which is closed before this method returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure (arg 1 is line, optional arg 2 is line number starting at line 1)
      Returns:
        the last value returned by the closure
      See Also:
        eachLine(java.io.File, int, groovy.lang.Closure)
      Since:
        1.5.5

    - #### <T> public T eachLine(String charset, Closure<T> closure)

      Iterates through this file line by line. Each line is passed to the given 1 or 2 arg closure. The file is read using a reader which is closed before this method returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - opens the file with a specified charset
        `closure` - a closure (arg 1 is line, optional arg 2 is line number starting at line 1)
      Returns:
        the last value returned by the closure
      See Also:
        eachLine(java.io.File, java.lang.String, int, groovy.lang.Closure)
      Since:
        1.6.8

    - #### <T> public T eachLine(int firstLine, Closure<T> closure)

      Iterates through this file line by line. Each line is passed to the given 1 or 2 arg closure. The file is read using a reader which is closed before this method returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `firstLine` - the line number value used for the first line (default is 1, set to 0 to start counting from 0)
        `closure` - a closure (arg 1 is line, optional arg 2 is line number)
      Returns:
        the last value returned by the closure
      See Also:
        IOGroovyMethods#eachLine(java.io.Reader, int, groovy.lang.Closure)
      Since:
        1.5.7

    - #### <T> public T eachLine(String charset, int firstLine, Closure<T> closure)

      Iterates through this file line by line. Each line is passed to the given 1 or 2 arg closure. The file is read using a reader which is closed before this method returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - opens the file with a specified charset
        `firstLine` - the line number value used for the first line (default is 1, set to 0 to start counting from 0)
        `closure` - a closure (arg 1 is line, optional arg 2 is line number)
      Returns:
        the last value returned by the closure
      See Also:
        IOGroovyMethods#eachLine(java.io.Reader, int, groovy.lang.Closure)
      Since:
        1.6.8

    - #### public void eachObject(Closure closure)

      Iterates through the given file object by object.

      throws:
        IOException if an IOException occurs.
      throws:
        ClassNotFoundException if the class is not found.
      Parameters:
        `closure` - a closure
      See Also:
        IOGroovyMethods#eachObject(java.io.ObjectInputStream, groovy.lang.Closure)
      Since:
        1.0

    - #### public Writable filterLine(Closure closure)

      Filters the lines of a File and creates a Writable in return to stream the filtered lines.

      throws:
        IOException if `self` is not readable
      Parameters:
        `closure` - a closure which returns a boolean indicating to filter the line or not
      Returns:
        a Writable closure
      See Also:
        IOGroovyMethods#filterLine(java.io.Reader, groovy.lang.Closure)
      Since:
        1.0

    - #### public Writable filterLine(String charset, Closure closure)

      Filters the lines of a File and creates a Writable in return to stream the filtered lines.

      throws:
        IOException if an IOException occurs
      Parameters:
        `charset` - opens the file with a specified charset
        `closure` - a closure which returns a boolean indicating to filter the line or not
      Returns:
        a Writable closure
      See Also:
        IOGroovyMethods#filterLine(java.io.Reader, groovy.lang.Closure)
      Since:
        1.6.8

    - #### public void filterLine(Writer writer, Closure closure)

      Filter the lines from this File, and write them to the given writer based on the given closure predicate.

      throws:
        IOException if `self` is not readable
      Parameters:
        `writer` - a writer destination to write filtered lines to
        `closure` - a closure which takes each line as a parameter and returns `true` if the line should be written to this writer.
      See Also:
        IOGroovyMethods#filterLine(java.io.Reader, java.io.Writer, groovy.lang.Closure)
      Since:
        1.0

    - #### public void filterLine(Writer writer, String charset, Closure closure)

      Filter the lines from this File, and write them to the given writer based on the given closure predicate.

      throws:
        IOException if an IO error occurs
      Parameters:
        `writer` - a writer destination to write filtered lines to
        `charset` - opens the file with a specified charset
        `closure` - a closure which takes each line as a parameter and returns `true` if the line should be written to this writer.
      See Also:
        IOGroovyMethods#filterLine(java.io.Reader, java.io.Writer, groovy.lang.Closure)
      Since:
        1.6.8

    - #### public String getBaseName()

      Provide the file's name without an extension.

      Returns:
        file's name without an extension.
      Since:
        5.0.0

    - #### public byte[] getBytes()

      Read the content of the File and returns it as a byte[].

      throws:
        IOException if an IOException occurs.
      Returns:
        a String containing the content of the file
      Since:
        1.7.1

    - #### public String getExtension()

      Provide the extension of this file.

      Returns:
        the extension of this file (not including the dot), or an empty string if it doesn't have one.
      Since:
        5.0.0

    - #### public String getText(String charset)

      Read the content of the File using the specified encoding and return it as a String.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the charset used to read the content of the file
      Returns:
        a String containing the content of the file
      Since:
        1.0

    - #### public String getText()

      Read the content of the File and returns it as a String.

      throws:
        IOException if an IOException occurs.
      Returns:
        a String containing the content of the file
      Since:
        1.0

    - #### public File leftShift(Object text)

      Write the text to the File.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to write to the File
      Returns:
        the original file
      Since:
        1.0

    - #### public File leftShift(byte[] bytes)

      Write bytes to a File.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `bytes` - the byte array to append to the end of the File
      Returns:
        the original file
      Since:
        1.5.0

    - #### public File leftShift(InputStream data)

      Append binary data to the file. See File.append

      throws:
        IOException if an IOException occurs.
      Parameters:
        `data` - an InputStream of data to write to the file
      Returns:
        the file
      Since:
        1.5.0

    - #### public DataInputStream newDataInputStream()

      Create a data input stream for this file

      throws:
        FileNotFoundException if the file is not found.
      Returns:
        a DataInputStream of the file
      Since:
        1.5.0

    - #### public DataOutputStream newDataOutputStream()

      Creates a new data output stream for this file.

      throws:
        IOException if an IOException occurs.
      Returns:
        the created DataOutputStream
      Since:
        1.5.0

    - #### public BufferedInputStream newInputStream()

      Creates a buffered input stream for this file.

      throws:
        FileNotFoundException if the file is not found.
      Returns:
        a BufferedInputStream of the file
      Since:
        1.0

    - #### public ObjectInputStream newObjectInputStream()

      Create an object input stream for this file.

      throws:
        IOException if an IOException occurs.
      Returns:
        an object input stream
      Since:
        1.5.0

    - #### public ObjectInputStream newObjectInputStream(ClassLoader classLoader)

      Create an object input stream for this file using the given class loader.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `classLoader` - the class loader to use when loading the class
      Returns:
        an object input stream
      Since:
        1.5.0

    - #### public ObjectOutputStream newObjectOutputStream()

      Create an object output stream for this file.

      throws:
        IOException if an IOException occurs.
      Returns:
        an object output stream
      Since:
        1.5.0

    - #### public BufferedOutputStream newOutputStream()

      Create a buffered output stream for this file.

      throws:
        IOException if an IOException occurs.
      Returns:
        the created OutputStream
      Since:
        1.0

    - #### public PrintWriter newPrintWriter()

      Create a new PrintWriter for this file.

      throws:
        IOException if an IOException occurs.
      Returns:
        the created PrintWriter
      Since:
        1.0

    - #### public PrintWriter newPrintWriter(String charset)

      Create a new PrintWriter for this file, using specified charset. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), the requisite byte order mark is written to the stream before the writer is returned.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the charset
      Returns:
        a PrintWriter
      Since:
        1.0

    - #### public BufferedReader newReader()

      Create a buffered reader for this file.

      throws:
        IOException if an IOException occurs.
      Returns:
        a BufferedReader
      Since:
        1.0

    - #### public BufferedReader newReader(String charset)

      Create a buffered reader for this file, using the specified charset as the encoding.

      throws:
        FileNotFoundException if the File was not found
      throws:
        UnsupportedEncodingException if the encoding specified is not supported
      Parameters:
        `charset` - the charset for this File
      Returns:
        a BufferedReader
      Since:
        1.0

    - #### public BufferedWriter newWriter()

      Create a buffered writer for this file.

      throws:
        IOException if an IOException occurs.
      Returns:
        a BufferedWriter
      Since:
        1.0

    - #### public BufferedWriter newWriter(boolean append)

      Creates a buffered writer for this file, optionally appending to the existing file content.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `append` - true if data should be appended to the file
      Returns:
        a BufferedWriter
      Since:
        1.0

    - #### public BufferedWriter newWriter(String charset, boolean append)

      Helper method to create a buffered writer for a file without writing a BOM.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the name of the encoding used to write in this file
        `append` - true if in append mode
      Returns:
        a BufferedWriter
      Since:
        1.0

    - #### public BufferedWriter newWriter(String charset, boolean append, boolean writeBom)

      Helper method to create a buffered writer for a file. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), the requisite byte order mark is written to the stream before the writer is returned.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the name of the encoding used to write in this file
        `append` - true if in append mode
        `writeBom` - whether to write a BOM
      Returns:
        a BufferedWriter
      Since:
        2.5.0

    - #### public BufferedWriter newWriter(String charset)

      Creates a buffered writer for this file, writing data without writing a BOM, using a specified encoding.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the name of the encoding used to write in this file
      Returns:
        a BufferedWriter
      Since:
        1.0

    - #### public byte[] readBytes()

      Reads the content of the file into a byte array.

      throws:
        IOException if an IOException occurs.
      Returns:
        a byte array with the contents of the file.
      Since:
        1.0

    - #### public List<String> readLines()

      Reads the file into a list of Strings, with one item for each line.

      throws:
        IOException if an IOException occurs.
      Returns:
        a List of lines
      See Also:
        IOGroovyMethods#readLines(java.io.Reader)
      Since:
        1.0

    - #### public List<String> readLines(String charset)

      Reads the file into a list of Strings, with one item for each line.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - opens the file with a specified charset
      Returns:
        a List of lines
      See Also:
        IOGroovyMethods#readLines(java.io.Reader)
      Since:
        1.6.8

    - #### public String relativePath(File to)

      Relative path to file.

      Parameters:
        `to` - the `File` to calculate the path to
      Returns:
        the relative path between the files

    - #### public boolean renameTo(String newPathName)

      Renames the file. It's a shortcut for File.renameTo

      Parameters:
        `newPathName` - The new pathname for the named file
      Returns:
        `true` if and only if the renaming succeeded; `false` otherwise
      Since:
        1.7.4

    - #### public void setBytes(byte[] bytes)

      Write the bytes from the byte array to the File.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `bytes` - the byte[] to write to the file
      Since:
        1.7.1

    - #### public void setText(String text)

      Synonym for write(text) allowing file.text = 'foo'.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to write to the File
      See Also:
        write(java.io.File, java.lang.String)
      Since:
        1.5.1

    - #### public void setText(String text, String charset)

      Synonym for write(text, charset) allowing:

           myFile.setText('some text', charset)

      or with some help from `ExpandoMetaClass`, you could do something like:

           myFile.metaClass.setText = { String s -> delegate.setText(s, 'UTF-8') }
           myfile.text = 'some text'

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - The charset used when writing to the file
        `text` - The text to write to the File
      See Also:
        write(java.io.File, java.lang.String, java.lang.String)
      Since:
        1.7.3

    - #### public long size()

      Provide the standard Groovy `size()` method for `File`.

      Returns:
        the file's size (length)
      Since:
        1.5.0

    - #### <T> public T splitEachLine(String regex, Closure<T> closure)

      Iterates through this file line by line, splitting each line using the given regex separator. For each line, the given closure is called with a single parameter being the list of strings computed by splitting the line around matches of the given regular expression. Finally the resources used for processing the file are closed.

      throws:
        IOException if an IOException occurs.
      throws:
        java.util.regex.PatternSyntaxException if the regular expression's syntax is invalid
      Parameters:
        `regex` - the delimiting regular expression
        `closure` - a closure
      Returns:
        the last value returned by the closure
      See Also:
        IOGroovyMethods#splitEachLine(java.io.Reader, java.lang.String, groovy.lang.Closure)
      Since:
        1.5.5

    - #### <T> public T splitEachLine(Pattern pattern, Closure<T> closure)

      Iterates through this file line by line, splitting each line using the given separator Pattern. For each line, the given closure is called with a single parameter being the list of strings computed by splitting the line around matches of the given regular expression Pattern. Finally the resources used for processing the file are closed.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `pattern` - the regular expression Pattern for the delimiter
        `closure` - a closure
      Returns:
        the last value returned by the closure
      See Also:
        IOGroovyMethods#splitEachLine(java.io.Reader, java.util.regex.Pattern, groovy.lang.Closure)
      Since:
        1.6.8

    - #### <T> public T splitEachLine(String regex, String charset, Closure<T> closure)

      Iterates through this file line by line, splitting each line using the given regex separator. For each line, the given closure is called with a single parameter being the list of strings computed by splitting the line around matches of the given regular expression. Finally the resources used for processing the file are closed.

      throws:
        IOException if an IOException occurs.
      throws:
        java.util.regex.PatternSyntaxException if the regular expression's syntax is invalid
      Parameters:
        `regex` - the delimiting regular expression
        `charset` - opens the file with a specified charset
        `closure` - a closure
      Returns:
        the last value returned by the closure
      See Also:
        IOGroovyMethods#splitEachLine(java.io.Reader, java.lang.String, groovy.lang.Closure)
      Since:
        1.6.8

    - #### <T> public T splitEachLine(Pattern pattern, String charset, Closure<T> closure)

      Iterates through this file line by line, splitting each line using the given regex separator Pattern. For each line, the given closure is called with a single parameter being the list of strings computed by splitting the line around matches of the given regular expression. Finally the resources used for processing the file are closed.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `pattern` - the regular expression Pattern for the delimiter
        `charset` - opens the file with a specified charset
        `closure` - a closure
      Returns:
        the last value returned by the closure
      See Also:
        IOGroovyMethods#splitEachLine(java.io.Reader, java.util.regex.Pattern, groovy.lang.Closure)
      Since:
        1.6.8

    - #### public void traverse(Map<String, ?> options, Closure closure)

      Processes each descendant file in this directory and any subdirectories. Processing consists of potentially calling `closure` passing it the current file (which may be a normal file or subdirectory) and then if a subdirectory was encountered, recursively processing the subdirectory.

      The traversal can be adapted by providing various options in the `options` Map according to the following keys:

      type
        A FileType enum to determine if normal files or directories or both are processed
      preDir
        A Closure run before each directory is processed and optionally returning a FileVisitResult value which can be used to control subsequent processing.
      preRoot
        A boolean indicating that the 'preDir' closure should be applied at the root level
      postDir
        A Closure run after each directory is processed and optionally returning a FileVisitResult value which can be used to control subsequent processing. Particularly useful when strict depth-first traversal is required.
      postRoot
        A boolean indicating that the 'postDir' closure should be applied at the root level
      visitRoot
        A boolean indicating that the given closure should be applied for the root dir (not applicable if the 'type' is set to FileType.FILES)
      maxDepth
        The maximum number of directory levels when recursing (default is -1 which means infinite, set to 0 for no recursion)
      filter
        A filter to perform on traversed files/directories (using the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method). If set, only files/dirs which match are candidates for visiting.
      nameFilter
        A filter to perform on the name of traversed files/directories (using the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method). If set, only files/dirs which match are candidates for visiting. (Must not be set if 'filter' is set)
      excludeFilter
        A filter to perform on traversed files/directories (using the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method). If set, any candidates which match won't be visited.
      excludeNameFilter
        A filter to perform on the names of traversed files/directories (using the DefaultGroovyMethods#isCase(java.lang.Object, java.lang.Object) method). If set, any candidates which match won't be visited. (Must not be set if 'excludeFilter' is set)
      sort
        A Closure which if set causes the files and subdirectories for each directory to be processed in sorted order. Note that even when processing only files, the order of visited subdirectories will be affected by this parameter.
      This example prints out file counts and size aggregates for groovy source files within a directory tree:

           def totalSize = 0
           def count = 0
           def sortByTypeThenName = { a, b ->
               a.isFile() != b.isFile() ? a.isFile() <=> b.isFile() : a.name <=> b.name
           }
           rootDir.traverse(
                   type         : FILES,
                   nameFilter   : ~/.*\.groovy/,
                   preDir       : { if (it.name == '.svn') return SKIP_SUBTREE },
                   postDir      : { println "Found $count files in $it.name totalling $totalSize bytes"
                                   totalSize = 0; count = 0 },
                   postRoot     : true
                   sort         : sortByTypeThenName
           ) {it -> totalSize += it.size(); count++ }

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory or illegal filter combinations are supplied
      Parameters:
        `options` - a Map of options to alter the traversal behavior
        `closure` - the Closure to invoke on each file/directory and optionally returning a FileVisitResult value which can be used to control subsequent processing
      See Also:
        DefaultGroovyMethods#sort(Iterable, groovy.lang.Closure)
        FileVisitResult
        FileType
      Since:
        1.7.1

    - #### public void traverse(Closure closure)

      Processes each descendant file in this directory and any subdirectories. Convenience method for File.traverse when no options to alter the traversal behavior are required.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory
      Parameters:
        `closure` - the Closure to invoke on each file/directory and optionally returning a FileVisitResult value which can be used to control subsequent processing
      See Also:
        traverse(java.io.File, java.util.Map, groovy.lang.Closure)
      Since:
        1.7.1

    - #### public void traverse(Map<String, ?> options)

      Invokes the closure specified with key 'visit' in the options Map for each descendant file in this directory tree. Convenience method for File.traverse allowing the 'visit' closure to be included in the options Map rather than as a parameter.

      throws:
        FileNotFoundException if the given directory does not exist
      throws:
        IllegalArgumentException if the provided File object does not represent a directory or illegal filter combinations are supplied
      Parameters:
        `options` - a Map of options to alter the traversal behavior
      See Also:
        traverse(java.io.File, java.util.Map, groovy.lang.Closure)
      Since:
        1.7.1

    - #### <T> public T withDataInputStream(Closure<T> closure)

      Create a new DataInputStream for this file and passes it into the closure. This method ensures the stream is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      See Also:
        IOGroovyMethods#withStream(java.io.InputStream, groovy.lang.Closure)
      Since:
        1.5.2

    - #### <T> public T withDataOutputStream(Closure<T> closure)

      Create a new DataOutputStream for this file and passes it into the closure. This method ensures the stream is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      See Also:
        IOGroovyMethods#withStream(java.io.OutputStream, groovy.lang.Closure)
      Since:
        1.5.2

    - #### public Object withInputStream(Closure closure)

      Create a new InputStream for this file and passes it into the closure. This method ensures the stream is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      See Also:
        IOGroovyMethods#withStream(java.io.InputStream, groovy.lang.Closure)
      Since:
        1.5.2

    - #### <T> public T withObjectInputStream(Closure<T> closure)

      Create a new ObjectInputStream for this file and pass it to the closure. This method ensures the stream is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      See Also:
        IOGroovyMethods#withStream(java.io.InputStream, groovy.lang.Closure)
      Since:
        1.5.2

    - #### <T> public T withObjectInputStream(ClassLoader classLoader, Closure<T> closure)

      Create a new ObjectInputStream for this file associated with the given class loader and pass it to the closure. This method ensures the stream is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `classLoader` - the class loader to use when loading the class
        `closure` - a closure
      Returns:
        the value returned by the closure
      See Also:
        IOGroovyMethods#withStream(java.io.InputStream, groovy.lang.Closure)
      Since:
        1.5.2

    - #### <T> public T withObjectOutputStream(Closure<T> closure)

      Create a new ObjectOutputStream for this file and then pass it to the closure. This method ensures the stream is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      See Also:
        IOGroovyMethods#withStream(java.io.OutputStream, groovy.lang.Closure)
      Since:
        1.5.0

    - #### public Object withOutputStream(Closure closure)

      Creates a new OutputStream for this file and passes it into the closure. This method ensures the stream is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      See Also:
        IOGroovyMethods#withStream(java.io.OutputStream, groovy.lang.Closure)
      Since:
        1.5.2

    - #### <T> public T withPrintWriter(Closure<T> closure)

      Create a new PrintWriter for this file which is then passed it into the given closure. This method ensures the writer is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - the closure to invoke with the PrintWriter
      Returns:
        the value returned by the closure
      Since:
        1.5.2

    - #### <T> public T withPrintWriter(String charset, Closure<T> closure)

      Create a new PrintWriter with a specified charset for this file. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), the requisite byte order mark is written to the stream when the writer is created. The writer is passed to the closure, and will be closed before this method returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the charset
        `closure` - the closure to invoke with the PrintWriter
      Returns:
        the value returned by the closure
      Since:
        1.5.2

    - #### <T> public T withReader(Closure<T> closure)

      Create a new BufferedReader for this file and then passes it into the closure, ensuring the reader is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      Since:
        1.5.2

    - #### <T> public T withReader(String charset, Closure<T> closure)

      Create a new BufferedReader for this file using the specified charset and then passes it into the closure, ensuring the reader is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the charset for this input stream
        `closure` - a closure
      Returns:
        the value returned by the closure
      Since:
        1.6.0

    - #### <T> public T withWriter(Closure<T> closure)

      Creates a new BufferedWriter for this file, passes it to the closure, and ensures the stream is flushed and closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      Since:
        1.5.2

    - #### <T> public T withWriter(String charset, Closure<T> closure)

      Creates a new BufferedWriter for this file, passes it to the closure, and ensures the stream is flushed and closed after the closure returns. The writer will use the given charset encoding. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), the requisite byte order mark is written to the stream when the writer is created.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the charset used
        `closure` - a closure
      Returns:
        the value returned by the closure
      Since:
        1.5.2

    - #### <T> public T withWriterAppend(String charset, Closure<T> closure)

      Create a new BufferedWriter which will append to this file. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias), the requisite byte order mark is written to the stream when the writer is created. The writer is passed to the closure and will be closed before this method returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `charset` - the charset used
        `closure` - a closure
      Returns:
        the value returned by the closure
      Since:
        1.5.2

    - #### <T> public T withWriterAppend(Closure<T> closure)

      Create a new BufferedWriter for this file in append mode. The writer is passed to the closure and is closed after the closure returns.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `closure` - a closure
      Returns:
        the value returned by the closure
      Since:
        1.5.2

    - #### public void write(String text)

      Write the text to the File without writing a BOM.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to write to the File
      Since:
        1.0

    - #### public void write(String text, boolean writeBom)

      Write the text to the File. If the default charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias) and `writeBom` is `true`, the requisite byte order mark is written to the file before the text.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to write to the File
        `writeBom` - whether to write a BOM
      Since:
        2.5.0

    - #### public void write(String text, String charset)

      Write the text to the File without writing a BOM, using the specified encoding.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to write to the File
        `charset` - the charset used
      Since:
        1.0

    - #### public void write(String text, String charset, boolean writeBom)

      Write the text to the File, using the specified encoding. If the given charset is "UTF-16BE" or "UTF-16LE" (or an equivalent alias) and `writeBom` is `true`, the requisite byte order mark is written to the file before the text.

      throws:
        IOException if an IOException occurs.
      Parameters:
        `text` - the text to write to the File
        `charset` - the charset used
        `writeBom` - whether to write a BOM
      Since:
        2.5.0