Java : DirectoryNotEmptyException with Examples

DirectoryNotEmptyException (Java SE 19 & JDK 19) API Examples.
You will find code examples on most DirectoryNotEmptyException methods.

Summary

Checked exception thrown when a file system operation fails because a directory is not empty.

Class diagram

For example, a DirectoryNotEmptyException is thrown when trying to delete a directory with contents.

Please see also : Delete a directory with contents

final var dir = Path.of("R:", "java-work", "dir");
System.out.println(dir); // R:\java-work\dir

final var file = dir.resolve(Path.of("aaa.txt"));
System.out.println(file); // R:\java-work\dir\aaa.txt

Files.createDirectories(dir);
Files.createFile(file);

// --- PowerShell ---
//PS R:\java-work> tree /F
//...
//R:.
//└─dir
//        aaa.txt

// --- NG ---
try {
    System.out.println("-- delete --");
    Files.delete(dir);
} catch (DirectoryNotEmptyException e) {
    System.out.println(e);
}

// Result
// ↓
//-- delete --
//java.nio.file.DirectoryNotEmptyException: R:\java-work\dir

// --- OK ---
Files.delete(file);
Files.delete(dir);

System.out.println(Files.notExists(dir)); // true

final var src = Path.of("R:", "java-work", "src-dir");
final var dst = Path.of("R:", "java-work", "dst-dir");

System.out.println(src); // R:\java-work\src-dir
System.out.println(dst); // R:\java-work\dst-dir

Files.createDirectories(src);
Files.createDirectories(dst);
Files.createFile(dst.resolve(Path.of("aaa.txt")));

// --- PowerShell ---
//PS R:\java-work> tree /F
//...
//R:.
//├─dst-dir
//│      aaa.txt
//│
//└─src-dir

try {
    System.out.println("-- move --");
    Files.move(src, dst, StandardCopyOption.REPLACE_EXISTING);
} catch (DirectoryNotEmptyException e) {
    System.out.println(e);
}

// Result
// ↓
//-- move --
//java.nio.file.DirectoryNotEmptyException: R:\java-work\dst-dir

Constructors

DirectoryNotEmptyException (String dir)

Constructs an instance of this class.

final var e = new DirectoryNotEmptyException("Dir!");
System.out.println(e); // java.nio.file.DirectoryNotEmptyException: Dir!
System.out.println(e.getFile()); // Dir!

Methods declared in FileSystemException

getFile, getMessage, getOtherFile, getReason

Please see the link below.

Java API Examples : FileSystemException

Methods declared in Throwable

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