Use NIO to create sum links but keep OS commands as a back up.
MODIFY
src/test/java/org/apache/commons/io/FileUtilsTestCase.java
src/test/java/org/apache/commons/io/FileUtilsTestCase.java
@@ -154,6 +154,7 @@ public long length() {
* List files recursively
*/
private static final ListDirectoryWalker LIST_WALKER = new ListDirectoryWalker();
+
@TempDir
public File temporaryFolder;
@@ -184,16 +185,38 @@ private void consumeRemaining(final Iterator<File> iterator) {
}
private void createCircularSymLink(final File file) throws IOException {
- if (!FilenameUtils.isSystemWindows()) {
- Runtime.getRuntime()
- .exec("ln -s " + file + "/.. " + file + "/cycle");
- } else {
+ assertTrue(file.exists());
+ final String linkName = file + "/cycle";
+ final String targetName = file + "/..";
+ assertTrue(file.exists());
+ final Path linkPath = Paths.get(linkName);
+ assertFalse(Files.exists(linkPath));
+ final Path targetPath = Paths.get(targetName);
+ assertTrue(Files.exists(targetPath));
try {
- Runtime.getRuntime()
- .exec("mklink /D " + file + "/cycle" + file + "/.. ");
- } catch (final IOException ioe) { // So that tests run in FAT filesystems
- //don't fail
+ // May throw java.nio.file.FileSystemException: C:\Users\...\FileUtilsTestCase\cycle: A required privilege is not held by the client.
+ // On Windows, you are fine if you run a terminal with admin karma.
+ Files.createSymbolicLink(linkPath, targetPath);
+ } catch (final UnsupportedOperationException e) {
+ e.printStackTrace();
+ createCircularOsSymLink(linkName, targetName);
}
+ // Sanity check:
+ assertTrue(Files.isSymbolicLink(linkPath), () -> "Expected a sym link here: " + linkName);
+ }
+
+ private void createCircularOsSymLink(final String linkName, final String targetName) throws IOException {
+ if (FilenameUtils.isSystemWindows()) {
+ // Windows
+ try {
+ Runtime.getRuntime().exec("mklink /D " + linkName + " " + targetName);
+ } catch (final IOException ioe) {
+ // So that tests run in FAT filesystems don't fail
+ ioe.printStackTrace();
+ }
+ } else {
+ // Not Windows, assume Linux
+ Runtime.getRuntime().exec("ln -s " + targetName + " " + linkName);
}
}
@@ -814,10 +837,8 @@ public void testCopyDirectoryToChild() throws Exception {
final File childDir = new File(parentDir, "child");
createFilesForTestCopyDirectory(grandParentDir, parentDir, childDir);
- final long expectedCount = LIST_WALKER.list(grandParentDir).size() +
- LIST_WALKER.list(parentDir).size();
- final long expectedSize = FileUtils.sizeOfDirectory(grandParentDir) +
- FileUtils.sizeOfDirectory(parentDir);
+ final long expectedCount = LIST_WALKER.list(grandParentDir).size() + LIST_WALKER.list(parentDir).size();
+ final long expectedSize = FileUtils.sizeOfDirectory(grandParentDir) + FileUtils.sizeOfDirectory(parentDir);
FileUtils.copyDirectory(parentDir, childDir);
assertEquals(expectedCount, LIST_WALKER.list(grandParentDir).size());
assertEquals(expectedSize, FileUtils.sizeOfDirectory(grandParentDir));
@@ -2538,7 +2559,7 @@ public void testSizeOfDirectoryAsBigInteger() throws Exception {
file.delete();
file.mkdir();
- this.createCircularSymLink(file);
+ createCircularSymLink(file);
assertEquals(TEST_DIRECTORY_SIZE_BI, FileUtils.sizeOfDirectoryAsBigInteger(file), "Unexpected directory size");

Use NIO to create sum links but keep OS commands as a back up.