ArbitraryDataFile.cleanupFilesystem() now uses generic FilesystemUtils.safeDeleteEmptyParentDirectories() code.

src/main/java/org/qortal/arbitrary/ArbitraryDataFile.java

@@ -401,26 +401,12 @@ public class ArbitraryDataFile {
         return fileDeleted || metadataDeleted || chunksDeleted;
     }
 
-    protected void cleanupFilesystem() {
+    protected void cleanupFilesystem() throws IOException {
         // It is essential that use a separate path reference in this method
         // as we don't want to modify this.filePath
         Path path = this.filePath;
         
-        // Iterate through two levels of parent directories, and delete if empty
-        for (int i=0; i<2; i++) {
-            Path directory = path.getParent().toAbsolutePath();
-            try (Stream<Path> files = Files.list(directory)) {
-                final long count = files.count();
-                if (count == 0) {
-                    if (FilesystemUtils.pathInsideDataOrTempPath(directory)) {
-                        Files.delete(directory);
-                    }
-                }
-            } catch (IOException e) {
-                LOGGER.warn("Unable to count files in directory", e);
-            }
-            path = directory;
-        }
+        FilesystemUtils.safeDeleteEmptyParentDirectories(path);
     }
 
     public byte[] getBytes() {