8267056: tools/jpackage/share/RuntimePackageTest.java fails with NoSuchFileException

Reviewed-by: asemenyuk, herrick

Author: Alexander Matveev

src/jdk.jpackage/macosx/classes/jdk/jpackage/internal/MacPkgBundler.java

@@ -390,16 +390,20 @@ private String getRoot(Map<String, ? super Object> params,
         Path rootDir = appLocation.getParent() == null ?
                 Path.of(".") : appLocation.getParent();
 
-        Path[] list = Files.list(rootDir).toArray(Path[]::new);
-        if (list != null) { // Should not happend
-            // We should only have app image and/or .DS_Store
-            if (list.length == 1) {
-                return rootDir.toString();
-            } else if (list.length == 2) {
-                // Check case with app image and .DS_Store
-                if (list[0].toString().toLowerCase().endsWith(".ds_store") ||
-                    list[1].toString().toLowerCase().endsWith(".ds_store")) {
-                    return rootDir.toString(); // Only app image and .DS_Store
+        // Not needed for runtime installer and it might break runtime installer
+        // if parent does not have any other files
+        if (!StandardBundlerParam.isRuntimeInstaller(params)) {
+            try (var fileList = Files.list(rootDir)) {
+                Path[] list = fileList.toArray(Path[]::new);
+                // We should only have app image and/or .DS_Store
+                if (list.length == 1) {
+                    return rootDir.toString();
+                } else if (list.length == 2) {
+                    // Check case with app image and .DS_Store
+                    if (list[0].toString().toLowerCase().endsWith(".ds_store") ||
+                        list[1].toString().toLowerCase().endsWith(".ds_store")) {
+                        return rootDir.toString(); // Only app image and .DS_Store
+                    }
                 }
             }
         }

test/jdk/tools/jpackage/share/RuntimePackageTest.java

@@ -151,6 +151,7 @@ private static Set<Path> listFiles(Path root) throws IOException {
             final Path prefsDir = Path.of(".systemPrefs");
             return files.map(root::relativize)
                     .filter(x -> !x.startsWith(prefsDir))
+                    .filter(x -> !x.endsWith(".DS_Store"))
                     .collect(Collectors.toSet());
         }
     }