zhuzhurk commented on a change in pull request #9950: [FLINK-14464][runtime] Introduce the AbstractUserClassPathJobGraphRetriever URL: https://github.com/apache/flink/pull/9950#discussion_r339283097
########## File path: flink-core/src/main/java/org/apache/flink/util/FileUtils.java ########## @@ -525,6 +540,102 @@ public static Path expandDirectory(Path file, Path targetDirectory) throws IOExc return new Path(targetDirectory, rootDir); } + /** + * List the directory {@code directory} recursively and return the files that satisfies the {@code fileFilter}. + * + * @param directory the directory to be listed + * @param fileFilter a file filter + * @return a collection of {@code File}s + * + * @throws IOException if an I/O error occurs while listing the files in the given directory + */ + public static Collection<File> listFilesInPath(@Nonnull final File directory, @Nonnull final Predicate<File> fileFilter) throws IOException { Review comment: I think we do not need the @Nonnull annotation since a param is supposed to be non-null by default. Instead, we should do null checks before using these params. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services