src/jdk.jpackage/share/classes/jdk/jpackage/internal/IOUtils.java

*** 77,101 ****
              }
          });
      }
  
      public static void copyRecursive(Path src, Path dest) throws IOException {
!         Files.walkFileTree(src, new SimpleFileVisitor<Path>() {
!             @Override
!             public FileVisitResult preVisitDirectory(final Path dir,
!                     final BasicFileAttributes attrs) throws IOException {
!                 Files.createDirectories(dest.resolve(src.relativize(dir)));
!                 return FileVisitResult.CONTINUE;
!             }
! 
!             @Override
!             public FileVisitResult visitFile(final Path file,
!                     final BasicFileAttributes attrs) throws IOException {
!                 Files.copy(file, dest.resolve(src.relativize(file)));
!                 return FileVisitResult.CONTINUE;
!             }
!         });
      }
  
      public static void copyRecursive(Path src, Path dest,
              final List<String> excludes) throws IOException {
          Files.walkFileTree(src, new SimpleFileVisitor<Path>() {
--- 77,87 ----
              }
          });
      }
  
      public static void copyRecursive(Path src, Path dest) throws IOException {
!         copyRecursive(src, dest, List.of());
      }
  
      public static void copyRecursive(Path src, Path dest,
              final List<String> excludes) throws IOException {
          Files.walkFileTree(src, new SimpleFileVisitor<Path>() {
*** 146,172 ****
              destFile.setReadOnly();
          }
          destFile.setReadable(true, false);
      }
  
-     public static long getFolderSize(File folder) {
-         long foldersize = 0;
- 
-         File[] children = folder.listFiles();
-         if (children != null) {
-             for (File f : children) {
-                 if (f.isDirectory()) {
-                     foldersize += getFolderSize(f);
-                 } else {
-                     foldersize += f.length();
-                 }
-             }
-         }
- 
-         return foldersize;
-     }
- 
      // run "launcher paramfile" in the directory where paramfile is kept
      public static void run(String launcher, File paramFile)
              throws IOException {
          if (paramFile != null && paramFile.exists()) {
              ProcessBuilder pb =
--- 132,141 ----