private static boolean isTestJarAndEmpty()

in tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/JarFileChecker.java [90:104]

• 14 lines of code
• 3 McCabe index (conditional complexity)

    private static boolean isTestJarAndEmpty(Path jar, Path jarRoot) throws IOException {
        if (jar.getFileName().toString().endsWith("-tests.jar")) {
            try (Stream<Path> files = Files.walk(jarRoot)) {
                long numClassFiles =
                        files.filter(path -> !path.equals(jarRoot))
                                .filter(path -> path.getFileName().toString().endsWith(".class"))
                                .count();
                if (numClassFiles == 0) {
                    return true;
                }
            }
        }

        return false;
    }