JkPathTree implements Closeable { public JkPathTree importTree(JkPathTree tree, CopyOption... copyOptions) { createIfNotExist(); if (tree.exists()) { tree.stream().filter(excludeRootFilter()).forEach(path -> { Path target = this.getRoot().resolve(tree.getRoot().relativize(path).toString()); if (Files.isDirectory(path)) { JkUtilsPath.createDirectories(target); } else { JkUtilsPath.copy(path, target, copyOptions); } }); } return this; } private  JkPathTree(RootHolder rootHolder, JkPathMatcher matcher); static JkPathTree of(Path rootDir); static JkPathTree ofZip(Path zipFile); Path getRoot(); Path getRootDirOrZipFile(); JkPathMatcher getMatcher(); boolean isDefineMatcher(); boolean exists(); JkPathTree createIfNotExist(); Stream<Path> stream(FileVisitOption ...options); List<Path> getRelativeFiles(); List<Path> getFiles(); JkPathTree goTo(String relativePath); JkPathTree resolvedTo(Path newRoot); Path get(String relativePath); JkPathTree importDir(Path dirToCopy, CopyOption... copyOptions); JkPathTree importTree(JkPathTree tree, CopyOption... copyOptions); JkPathTree importFiles(Iterable<Path> files, StandardCopyOption ... copyOptions); JkPathTree importFile(Path src, String targetName, StandardCopyOption ... copyOptions); JkPathTree deleteContent(); JkPathTree deleteRoot(); JkPathTree zipTo(Path destination); int copyTo(Path destinationDir, CopyOption ... copyOptions); void copyFile(String sourcePath, Path destinationDir, CopyOption ... copyOptions); JkPathTree andMatcher(PathMatcher pathMatcher); JkPathTree withMatcher(JkPathMatcher pathMatcher); JkPathTree andMatching(boolean positive, String... globPatterns); JkPathTree andMatching(String... globPatterns); JkPathTree andMatching(boolean positive, Iterable<String> globPatterns); int count(int max, boolean includeDirectories); JkPathTree resolve(Path path); JkPathTreeSet toSet(); @Override String toString(); @Override void close();  }
@Test public void testImportTree() throws Exception { Path dirSample = Files.createTempDirectory("sample"); JkPathTree tree = JkPathTree.of(dirSample); tree.importTree(JkPathTree.ofZip(createSampleZip())); assertTrue(Files.isDirectory(tree.get("subfolder"))); assertTrue(Files.isRegularFile(tree.get("subfolder").resolve("sample.txt"))); assertTrue(Files.isDirectory(tree.get("emptyfolder"))); }