jdk/test/java/nio/file/Path/CopyAndMove.java
changeset 8191 c9d1e3a6d6a2
parent 8150 0a3a7198c1c8
parent 8190 c8cdf811a171
child 8195 9b0b48c4ddac
--- a/jdk/test/java/nio/file/Path/CopyAndMove.java	Tue Feb 08 14:19:54 2011 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1006 +0,0 @@
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/* @test
- * @bug 4313887 6838333 6917021
- * @summary Unit test for java.nio.file.Path copyTo/moveTo methods
- * @library ..
- * @build CopyAndMove PassThroughFileSystem
- * @run main/othervm CopyAndMove
- */
-
-import java.nio.ByteBuffer;
-import java.nio.file.*;
-import static java.nio.file.StandardCopyOption.*;
-import static java.nio.file.LinkOption.*;
-import java.nio.file.attribute.*;
-import java.io.*;
-import java.util.*;
-
-public class CopyAndMove {
-    static final Random rand = new Random();
-    static boolean heads() { return rand.nextBoolean(); }
-
-    public static void main(String[] args) throws Exception {
-        Path dir1 = TestUtil.createTemporaryDirectory();
-        try {
-            // Same directory
-            doCopyTests(dir1, dir1, TestUtil.supportsLinks(dir1));
-            doMoveTests(dir1, dir1, TestUtil.supportsLinks(dir1));
-
-            // Different directories. Use test.dir if possible as it might be
-            // a different volume/file system and so improve test coverage.
-            String testDir = System.getProperty("test.dir", ".");
-            Path dir2 = TestUtil.createTemporaryDirectory(testDir);
-            try {
-                boolean testSymbolicLinks =
-                    TestUtil.supportsLinks(dir1) && TestUtil.supportsLinks(dir2);
-                doCopyTests(dir1, dir2, testSymbolicLinks);
-                doMoveTests(dir1, dir2, testSymbolicLinks);
-            } finally {
-                TestUtil.removeAll(dir2);
-            }
-
-            // Target is location associated with custom provider
-            Path dir3 = PassThroughFileSystem.create().getPath(dir1.toString());
-            doCopyTests(dir1, dir3, false);
-            doMoveTests(dir1, dir3, false);
-
-        } finally {
-            TestUtil.removeAll(dir1);
-        }
-    }
-
-    static void checkBasicAttributes(BasicFileAttributes attrs1,
-                                     BasicFileAttributes attrs2)
-    {
-        // check file type
-        assertTrue(attrs1.isRegularFile() == attrs2.isRegularFile());
-        assertTrue(attrs1.isDirectory() == attrs2.isDirectory());
-        assertTrue(attrs1.isSymbolicLink() == attrs2.isSymbolicLink());
-        assertTrue(attrs1.isOther() == attrs2.isOther());
-
-        // check last modified time
-        long time1 = attrs1.lastModifiedTime().toMillis();
-        long time2 = attrs2.lastModifiedTime().toMillis();
-        assertTrue(time1 == time2);
-
-        // check size
-        if (attrs1.isRegularFile())
-            assertTrue(attrs1.size() == attrs2.size());
-    }
-
-    static void checkPosixAttributes(PosixFileAttributes attrs1,
-                                     PosixFileAttributes attrs2)
-    {
-        assertTrue(attrs1.permissions().equals(attrs2.permissions()));
-        assertTrue(attrs1.owner().equals(attrs2.owner()));
-        assertTrue(attrs1.group().equals(attrs2.group()));
-    }
-
-    static void checkDosAttributes(DosFileAttributes attrs1,
-                                   DosFileAttributes attrs2)
-    {
-        assertTrue(attrs1.isReadOnly() == attrs2.isReadOnly());
-        assertTrue(attrs1.isHidden() == attrs2.isHidden());
-        assertTrue(attrs1.isSystem() == attrs2.isSystem());
-    }
-
-    static void checkUserDefinedFileAttributes(Map<String,ByteBuffer> attrs1,
-                                     Map<String,ByteBuffer> attrs2)
-    {
-        assert attrs1.size() == attrs2.size();
-        for (String name: attrs1.keySet()) {
-            ByteBuffer bb1 = attrs1.get(name);
-            ByteBuffer bb2 = attrs2.get(name);
-            assertTrue(bb2 != null);
-            assertTrue(bb1.equals(bb2));
-        }
-    }
-
-    static Map<String,ByteBuffer> readUserDefinedFileAttributes(Path file)
-        throws IOException
-    {
-        UserDefinedFileAttributeView view = file
-            .getFileAttributeView(UserDefinedFileAttributeView.class);
-        Map<String,ByteBuffer> result = new HashMap<String,ByteBuffer>();
-        for (String name: view.list()) {
-            int size = view.size(name);
-            ByteBuffer bb = ByteBuffer.allocate(size);
-            int n = view.read(name, bb);
-            assertTrue(n == size);
-            bb.flip();
-            result.put(name, bb);
-        }
-        return result;
-    }
-
-    // move source to target with verification
-    static void moveAndVerify(Path source, Path target, CopyOption... options)
-        throws IOException
-    {
-        // read attributes before file is moved
-        BasicFileAttributes basicAttributes = null;
-        PosixFileAttributes posixAttributes = null;
-        DosFileAttributes dosAttributes = null;
-        Map<String,ByteBuffer> namedAttributes = null;
-
-        // get file attributes of source file
-        String os = System.getProperty("os.name");
-        if (os.equals("SunOS") || os.equals("Linux")) {
-            posixAttributes = Attributes.readPosixFileAttributes(source, NOFOLLOW_LINKS);
-            basicAttributes = posixAttributes;
-        }
-        if (os.startsWith("Windows")) {
-            dosAttributes = Attributes.readDosFileAttributes(source, NOFOLLOW_LINKS);
-            basicAttributes = dosAttributes;
-        }
-        if (basicAttributes == null)
-            basicAttributes = Attributes.readBasicFileAttributes(source, NOFOLLOW_LINKS);
-
-        // hash file contents if regular file
-        int hash = (basicAttributes.isRegularFile()) ? computeHash(source) : 0;
-
-        // record link target if symbolic link
-        Path linkTarget = null;
-        if (basicAttributes.isSymbolicLink())
-            linkTarget = source.readSymbolicLink();
-
-        // read named attributes if available (and file is not a sym link)
-        if (!basicAttributes.isSymbolicLink() &&
-            source.getFileStore().supportsFileAttributeView("xattr"))
-        {
-            namedAttributes = readUserDefinedFileAttributes(source);
-        }
-
-        // move file
-        source.moveTo(target, options);
-
-        // verify source does not exist
-        assertTrue(source.notExists());
-
-        // verify file contents
-        if (basicAttributes.isRegularFile()) {
-            if (computeHash(target) != hash)
-                throw new RuntimeException("Failed to verify move of regular file");
-        }
-
-        // verify link target
-        if (basicAttributes.isSymbolicLink()) {
-            if (!target.readSymbolicLink().equals(linkTarget))
-                throw new RuntimeException("Failed to verify move of symbolic link");
-        }
-
-        // verify basic attributes
-        checkBasicAttributes(basicAttributes,
-            Attributes.readBasicFileAttributes(target, NOFOLLOW_LINKS));
-
-        // verify other attributes when same provider
-        if (source.getFileSystem().provider() == target.getFileSystem().provider()) {
-
-            // verify POSIX attributes
-            if (posixAttributes != null && !basicAttributes.isSymbolicLink()) {
-                checkPosixAttributes(posixAttributes,
-                    Attributes.readPosixFileAttributes(target, NOFOLLOW_LINKS));
-            }
-
-            // verify DOS attributes
-            if (dosAttributes != null && !basicAttributes.isSymbolicLink()) {
-                checkDosAttributes(dosAttributes,
-                    Attributes.readDosFileAttributes(target, NOFOLLOW_LINKS));
-            }
-
-            // verify named attributes
-            if (namedAttributes != null &&
-                target.getFileStore().supportsFileAttributeView("xattr"))
-            {
-                checkUserDefinedFileAttributes(namedAttributes,
-                                               readUserDefinedFileAttributes(target));
-            }
-        }
-    }
-
-    /**
-     * Tests all possible ways to invoke moveTo
-     */
-    static void doMoveTests(Path dir1, Path dir2, boolean supportsLinks)
-        throws IOException
-    {
-        Path source, target, entry;
-
-        boolean sameDevice = dir1.getFileStore().equals(dir2.getFileStore());
-
-        // -- regular file --
-
-        /**
-         * Test: move regular file, target does not exist
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        moveAndVerify(source, target);
-        target.delete();
-
-        /**
-         * Test: move regular file, target exists
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2).createFile();
-        try {
-            moveAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        target.delete();
-        target.createDirectory();
-        try {
-            moveAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: move regular file, target does not exist
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        moveAndVerify(source, target, REPLACE_EXISTING);
-        target.delete();
-
-        /**
-         * Test: move regular file, target exists
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2).createFile();
-        moveAndVerify(source, target, REPLACE_EXISTING);
-        target.delete();
-
-        /**
-         * Test: move regular file, target exists and is empty directory
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2).createDirectory();
-        moveAndVerify(source, target, REPLACE_EXISTING);
-        target.delete();
-
-        /**
-         * Test: move regular file, target exists and is non-empty directory
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2).createDirectory();
-        entry = target.resolve("foo").createFile();
-        try {
-            moveAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        entry.delete();
-        source.delete();
-        target.delete();
-
-        /**
-         * Test atomic move of regular file (same file store)
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir1);
-        moveAndVerify(source, target, ATOMIC_MOVE);
-        target.delete();
-
-        /**
-         * Test atomic move of regular file (different file store)
-         */
-        if (!sameDevice) {
-            source = createSourceFile(dir1);
-            target = getTargetFile(dir2);
-            try {
-                moveAndVerify(source, target, ATOMIC_MOVE);
-                throw new RuntimeException("AtomicMoveNotSupportedException expected");
-            } catch (AtomicMoveNotSupportedException x) {
-            }
-            source.delete();
-        }
-
-        // -- directories --
-
-        /*
-         * Test: move empty directory, target does not exist
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2);
-        moveAndVerify(source, target);
-        target.delete();
-
-        /**
-         * Test: move empty directory, target exists
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2).createFile();
-        try {
-            moveAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        target.delete();
-        target.createDirectory();
-        try {
-            moveAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: move empty directory, target does not exist
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2);
-        moveAndVerify(source, target, REPLACE_EXISTING);
-        target.delete();
-
-        /**
-         * Test: move empty directory, target exists
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2).createFile();
-        moveAndVerify(source, target, REPLACE_EXISTING);
-        target.delete();
-
-        /**
-         * Test: move empty, target exists and is empty directory
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2).createDirectory();
-        moveAndVerify(source, target, REPLACE_EXISTING);
-        target.delete();
-
-        /**
-         * Test: move empty directory, target exists and is non-empty directory
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2).createDirectory();
-        entry = target.resolve("foo").createFile();
-        try {
-            moveAndVerify(source, target, REPLACE_EXISTING);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        entry.delete();
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: move non-empty directory (same file system)
-         */
-        source = createSourceDirectory(dir1);
-        source.resolve("foo").createFile();
-        target = getTargetFile(dir1);
-        moveAndVerify(source, target);
-        target.resolve("foo").delete();
-        target.delete();
-
-        /**
-         * Test: move non-empty directory (different file store)
-         */
-        if (!sameDevice) {
-            source = createSourceDirectory(dir1);
-            source.resolve("foo").createFile();
-            target = getTargetFile(dir2);
-            try {
-                moveAndVerify(source, target);
-                throw new RuntimeException("IOException expected");
-            } catch (IOException x) {
-            }
-            source.resolve("foo").delete();
-            source.delete();
-        }
-
-        /**
-         * Test atomic move of directory (same file store)
-         */
-        source = createSourceDirectory(dir1);
-        source.resolve("foo").createFile();
-        target = getTargetFile(dir1);
-        moveAndVerify(source, target, ATOMIC_MOVE);
-        target.resolve("foo").delete();
-        target.delete();
-
-        // -- symbolic links --
-
-        /**
-         * Test: Move symbolic link to file, target does not exist
-         */
-        if (supportsLinks) {
-            Path tmp = createSourceFile(dir1);
-            source = dir1.resolve("link").createSymbolicLink(tmp);
-            target = getTargetFile(dir2);
-            moveAndVerify(source, target);
-            target.delete();
-            tmp.delete();
-        }
-
-        /**
-         * Test: Move symbolic link to directory, target does not exist
-         */
-        if (supportsLinks) {
-            source = dir1.resolve("link").createSymbolicLink(dir2);
-            target = getTargetFile(dir2);
-            moveAndVerify(source, target);
-            target.delete();
-        }
-
-        /**
-         * Test: Move broken symbolic link, target does not exists
-         */
-        if (supportsLinks) {
-            Path tmp = Paths.get("doesnotexist");
-            source = dir1.resolve("link").createSymbolicLink(tmp);
-            target = getTargetFile(dir2);
-            moveAndVerify(source, target);
-            target.delete();
-        }
-
-        /**
-         * Test: Move symbolic link, target exists
-         */
-        if (supportsLinks) {
-            source = dir1.resolve("link").createSymbolicLink(dir2);
-            target = getTargetFile(dir2).createFile();
-            try {
-                moveAndVerify(source, target);
-                throw new RuntimeException("FileAlreadyExistsException expected");
-            } catch (FileAlreadyExistsException x) {
-            }
-            source.delete();
-            target.delete();
-        }
-
-        /**
-         * Test: Move regular file, target exists
-         */
-        if (supportsLinks) {
-            source = dir1.resolve("link").createSymbolicLink(dir2);
-            target = getTargetFile(dir2).createFile();
-            moveAndVerify(source, target, REPLACE_EXISTING);
-            target.delete();
-        }
-
-        /**
-         * Test: move symbolic link, target exists and is empty directory
-         */
-        if (supportsLinks) {
-            source = dir1.resolve("link").createSymbolicLink(dir2);
-            target = getTargetFile(dir2).createDirectory();
-            moveAndVerify(source, target, REPLACE_EXISTING);
-            target.delete();
-        }
-
-        /**
-         * Test: symbolic link, target exists and is non-empty directory
-         */
-        if (supportsLinks) {
-            source = dir1.resolve("link").createSymbolicLink(dir2);
-            target = getTargetFile(dir2).createDirectory();
-            entry = target.resolve("foo").createFile();
-            try {
-                moveAndVerify(source, target);
-                throw new RuntimeException("FileAlreadyExistsException expected");
-            } catch (FileAlreadyExistsException x) {
-            }
-            entry.delete();
-            source.delete();
-            target.delete();
-        }
-
-        /**
-         * Test atomic move of symbolic link (same file store)
-         */
-        if (supportsLinks) {
-            source = dir1.resolve("link").createSymbolicLink(dir1);
-            target = getTargetFile(dir2).createFile();
-            moveAndVerify(source, target, REPLACE_EXISTING);
-            target.delete();
-        }
-
-        // -- misc. tests --
-
-        /**
-         * Test nulls
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        try {
-            source.moveTo(null);
-            throw new RuntimeException("NullPointerException expected");
-        } catch (NullPointerException x) { }
-        try {
-            source.moveTo(target, (CopyOption[])null);
-            throw new RuntimeException("NullPointerException expected");
-        } catch (NullPointerException x) { }
-        try {
-            CopyOption[] opts = { REPLACE_EXISTING, null };
-            source.moveTo(target, opts);
-            throw new RuntimeException("NullPointerException expected");
-        } catch (NullPointerException x) { }
-        source.delete();
-
-        /**
-         * Test UOE
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        try {
-            source.moveTo(target, new CopyOption() { });
-        } catch (UnsupportedOperationException x) { }
-        try {
-            source.moveTo(target, REPLACE_EXISTING,  new CopyOption() { });
-        } catch (UnsupportedOperationException x) { }
-        source.delete();
-    }
-
-    // copy source to target with verification
-    static void copyAndVerify(Path source, Path target, CopyOption... options)
-        throws IOException
-    {
-        source.copyTo(target, options);
-
-        // get attributes of source and target file to verify copy
-        boolean followLinks = true;
-        LinkOption[] linkOptions = new LinkOption[0];
-        boolean copyAttributes = false;
-        for (CopyOption opt : options) {
-            if (opt == NOFOLLOW_LINKS) {
-                followLinks = false;
-                linkOptions = new LinkOption[] { NOFOLLOW_LINKS };
-            }
-            if (opt == COPY_ATTRIBUTES)
-                copyAttributes = true;
-        }
-        BasicFileAttributes basicAttributes = Attributes
-            .readBasicFileAttributes(source, linkOptions);
-
-        // check hash if regular file
-        if (basicAttributes.isRegularFile())
-            assertTrue(computeHash(source) == computeHash(target));
-
-        // check link target if symbolic link
-        if (basicAttributes.isSymbolicLink())
-            assert( source.readSymbolicLink().equals(target.readSymbolicLink()));
-
-        // check that attributes are copied
-        if (copyAttributes && followLinks) {
-            checkBasicAttributes(basicAttributes,
-                Attributes.readBasicFileAttributes(source, linkOptions));
-
-            // verify other attributes when same provider
-            if (source.getFileSystem().provider() == target.getFileSystem().provider()) {
-
-                // check POSIX attributes are copied
-                String os = System.getProperty("os.name");
-                if (os.equals("SunOS") || os.equals("Linux")) {
-                    checkPosixAttributes(
-                        Attributes.readPosixFileAttributes(source, linkOptions),
-                        Attributes.readPosixFileAttributes(target, linkOptions));
-                }
-
-                // check DOS attributes are copied
-                if (os.startsWith("Windows")) {
-                    checkDosAttributes(
-                        Attributes.readDosFileAttributes(source, linkOptions),
-                        Attributes.readDosFileAttributes(target, linkOptions));
-                }
-
-                // check named attributes are copied
-                if (followLinks &&
-                    source.getFileStore().supportsFileAttributeView("xattr") &&
-                    target.getFileStore().supportsFileAttributeView("xattr"))
-                {
-                    checkUserDefinedFileAttributes(readUserDefinedFileAttributes(source),
-                                                   readUserDefinedFileAttributes(target));
-                }
-            }
-        }
-    }
-
-    /**
-     * Tests all possible ways to invoke copyTo
-     */
-    static void doCopyTests(Path dir1, Path dir2, boolean supportsLinks)
-        throws IOException
-    {
-        Path source, target, link, entry;
-
-        // -- regular file --
-
-        /**
-         * Test: move regular file, target does not exist
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        copyAndVerify(source, target);
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy regular file, target exists
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2).createFile();
-        try {
-            copyAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        target.delete();
-        target.createDirectory();
-        try {
-            copyAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy regular file, target does not exist
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        copyAndVerify(source, target, REPLACE_EXISTING);
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy regular file, target exists
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2).createFile();
-        copyAndVerify(source, target, REPLACE_EXISTING);
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy regular file, target exists and is empty directory
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2).createDirectory();
-        copyAndVerify(source, target, REPLACE_EXISTING);
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy regular file, target exists and is non-empty directory
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2).createDirectory();
-        entry = target.resolve("foo").createFile();
-        try {
-            copyAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        entry.delete();
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy regular file + attributes
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        copyAndVerify(source, target, COPY_ATTRIBUTES);
-        source.delete();
-        target.delete();
-
-
-        // -- directory --
-
-        /*
-         * Test: copy directory, target does not exist
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2);
-        copyAndVerify(source, target);
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy directory, target exists
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2).createFile();
-        try {
-            copyAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        target.delete();
-        target.createDirectory();
-        try {
-            copyAndVerify(source, target);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy directory, target does not exist
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2);
-        copyAndVerify(source, target, REPLACE_EXISTING);
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy directory, target exists
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2).createFile();
-        copyAndVerify(source, target, REPLACE_EXISTING);
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy directory, target exists and is empty directory
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2).createDirectory();
-        copyAndVerify(source, target, REPLACE_EXISTING);
-        source.delete();
-        target.delete();
-
-        /**
-         * Test: copy directory, target exists and is non-empty directory
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2).createDirectory();
-        entry = target.resolve("foo").createFile();
-        try {
-            copyAndVerify(source, target, REPLACE_EXISTING);
-            throw new RuntimeException("FileAlreadyExistsException expected");
-        } catch (FileAlreadyExistsException x) {
-        }
-        entry.delete();
-        source.delete();
-        target.delete();
-
-        /*
-         * Test: copy directory + attributes
-         */
-        source = createSourceDirectory(dir1);
-        target = getTargetFile(dir2);
-        copyAndVerify(source, target, COPY_ATTRIBUTES);
-        source.delete();
-        target.delete();
-
-        // -- symbolic links --
-
-        /**
-         * Test: Follow link
-         */
-        if (supportsLinks) {
-            source = createSourceFile(dir1);
-            link = dir1.resolve("link").createSymbolicLink(source);
-            target = getTargetFile(dir2);
-            copyAndVerify(link, target);
-            link.delete();
-            source.delete();
-        }
-
-        /**
-         * Test: Copy link (to file)
-         */
-        if (supportsLinks) {
-            source = createSourceFile(dir1);
-            link = dir1.resolve("link").createSymbolicLink(source);
-            target = getTargetFile(dir2);
-            copyAndVerify(link, target, NOFOLLOW_LINKS);
-            link.delete();
-            source.delete();
-        }
-
-        /**
-         * Test: Copy link (to directory)
-         */
-        if (supportsLinks) {
-            source = dir1.resolve("mydir").createDirectory();
-            link = dir1.resolve("link").createSymbolicLink(source);
-            target = getTargetFile(dir2);
-            copyAndVerify(link, target, NOFOLLOW_LINKS);
-            link.delete();
-            source.delete();
-        }
-
-        /**
-         * Test: Copy broken link
-         */
-        if (supportsLinks) {
-            assertTrue(source.notExists());
-            link = dir1.resolve("link").createSymbolicLink(source);
-            target = getTargetFile(dir2);
-            copyAndVerify(link, target, NOFOLLOW_LINKS);
-            link.delete();
-        }
-
-        /**
-         * Test: Copy link to UNC (Windows only)
-         */
-        if (supportsLinks &&
-            System.getProperty("os.name").startsWith("Windows"))
-        {
-            Path unc = Paths.get("\\\\rialto\\share\\file");
-            link = dir1.resolve("link").createSymbolicLink(unc);
-            target = getTargetFile(dir2);
-            copyAndVerify(link, target, NOFOLLOW_LINKS);
-            link.delete();
-        }
-
-        // -- misc. tests --
-
-        /**
-         * Test nulls
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        try {
-            source.copyTo(null);
-            throw new RuntimeException("NullPointerException expected");
-        } catch (NullPointerException x) { }
-        try {
-            source.copyTo(target, (CopyOption[])null);
-            throw new RuntimeException("NullPointerException expected");
-        } catch (NullPointerException x) { }
-        try {
-            CopyOption[] opts = { REPLACE_EXISTING, null };
-            source.copyTo(target, opts);
-            throw new RuntimeException("NullPointerException expected");
-        } catch (NullPointerException x) { }
-        source.delete();
-
-        /**
-         * Test UOE
-         */
-        source = createSourceFile(dir1);
-        target = getTargetFile(dir2);
-        try {
-            source.copyTo(target, new CopyOption() { });
-        } catch (UnsupportedOperationException x) { }
-        try {
-            source.copyTo(target, REPLACE_EXISTING,  new CopyOption() { });
-        } catch (UnsupportedOperationException x) { }
-        source.delete();
-    }
-
-
-    static void assertTrue(boolean value) {
-        if (!value)
-            throw new RuntimeException("Assertion failed");
-    }
-
-    // computes simple hash of the given file
-    static int computeHash(Path file) throws IOException {
-        int h = 0;
-
-        InputStream in = file.newInputStream();
-        try {
-            byte[] buf = new byte[1024];
-            int n;
-            do {
-                n = in.read(buf);
-                for (int i=0; i<n; i++) {
-                    h = 31*h + (buf[i] & 0xff);
-                }
-            } while (n > 0);
-        } finally {
-            in.close();
-        }
-        return h;
-    }
-
-    // create file of random size in given directory
-    static Path createSourceFile(Path dir) throws IOException {
-        String name = "source" + Integer.toString(rand.nextInt());
-        Path file = dir.resolve(name).createFile();
-        byte[] bytes = new byte[rand.nextInt(128*1024)];
-        rand.nextBytes(bytes);
-        OutputStream out = file.newOutputStream();
-        try {
-            out.write(bytes);
-        } finally {
-            out.close();
-        }
-        randomizeAttributes(file);
-        return file;
-    }
-
-    // create directory in the given directory
-    static Path createSourceDirectory(Path dir) throws IOException {
-        String name = "sourcedir" + Integer.toString(rand.nextInt());
-        Path subdir = dir.resolve(name).createDirectory();
-        randomizeAttributes(subdir);
-        return subdir;
-    }
-
-    // "randomize" the file attributes of the given file.
-    static void randomizeAttributes(Path file) throws IOException {
-        String os = System.getProperty("os.name");
-        boolean isWindows = os.startsWith("Windows");
-        boolean isUnix = os.equals("SunOS") || os.equals("Linux");
-        boolean isDirectory = Attributes.readBasicFileAttributes(file, NOFOLLOW_LINKS)
-            .isDirectory();
-
-        if (isUnix) {
-            Set<PosixFilePermission> perms = Attributes
-                .readPosixFileAttributes(file, NOFOLLOW_LINKS).permissions();
-            PosixFilePermission[] toChange = {
-                PosixFilePermission.GROUP_READ,
-                PosixFilePermission.GROUP_WRITE,
-                PosixFilePermission.GROUP_EXECUTE,
-                PosixFilePermission.OTHERS_READ,
-                PosixFilePermission.OTHERS_WRITE,
-                PosixFilePermission.OTHERS_EXECUTE
-            };
-            for (PosixFilePermission perm: toChange) {
-                if (heads()) {
-                    perms.add(perm);
-                } else {
-                    perms.remove(perm);
-                }
-            }
-            Attributes.setPosixFilePermissions(file, perms);
-        }
-
-        if (isWindows) {
-            DosFileAttributeView view = file
-                .getFileAttributeView(DosFileAttributeView.class, NOFOLLOW_LINKS);
-            // only set or unset the hidden attribute
-            view.setHidden(heads());
-        }
-
-        boolean addUserDefinedFileAttributes = heads() &&
-            file.getFileStore().supportsFileAttributeView("xattr");
-
-        // remove this when copying a direcory copies its named streams
-        if (isWindows && isDirectory) addUserDefinedFileAttributes = false;
-
-        if (addUserDefinedFileAttributes) {
-            UserDefinedFileAttributeView view = file
-                .getFileAttributeView(UserDefinedFileAttributeView.class);
-            int n = rand.nextInt(16);
-            while (n > 0) {
-                byte[] value = new byte[1 + rand.nextInt(100)];
-                view.write("user." + Integer.toString(n), ByteBuffer.wrap(value));
-                n--;
-            }
-        }
-    }
-
-    // create name for file in given directory
-    static Path getTargetFile(Path dir) throws IOException {
-        String name = "target" + Integer.toString(rand.nextInt());
-        return dir.resolve(name);
-    }
- }