+
+ if (POSIX_KEYS.containsKey(key)) {
+ value = Files.getAttribute(path, toFsAttributeKey(key));
+ } else {
+ UserDefinedFileAttributeView udfav = Files.getFileAttributeView(path,
+ UserDefinedFileAttributeView.class);
+ String prefixedName = NamespaceUtils.toPrefixedName(provider, key);
+ if (!udfav.list().contains(prefixedName))
+ return Optional.empty();
+ ByteBuffer buf = ByteBuffer.allocate(udfav.size(prefixedName));
+ udfav.read(prefixedName, buf);
+ buf.flip();
+ if (buf.hasArray())
+ value = buf.array();
+ else {
+ byte[] arr = new byte[buf.remaining()];
+ buf.get(arr);
+ value = arr;
+ }
+ }