8334333: MissingResourceCauseTestRun.java fails if run by root

Reviewed-by: naoto, jlu

Author: SendaoYan

test/jdk/java/util/ResourceBundle/Control/MissingResourceCauseTestRun.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 2024, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -23,7 +23,7 @@
 
 /*
  * @test
- * @bug 4354216 8213127
+ * @bug 4354216 8213127 8334333
  * @summary Test for the cause support when throwing a
  *          MissingResourceBundle. (This test exists under
  *          ResourceBundle/Control because bad resource bundle data can be
@@ -32,6 +32,7 @@
  * @build jdk.test.lib.JDKToolLauncher
  *        jdk.test.lib.Utils
  *        jdk.test.lib.process.ProcessTools
+ *        jdk.test.lib.Platform
  *        MissingResourceCauseTest
  *        NonResourceBundle
  *        PrivateConstructorRB
@@ -50,9 +51,14 @@
 import jdk.test.lib.JDKToolLauncher;
 import jdk.test.lib.Utils;
 import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.Platform;
+import jtreg.SkippedException;
 
 public class MissingResourceCauseTestRun {
     public static void main(String[] args) throws Throwable {
+        if (Platform.isRoot() && !Platform.isWindows()) {
+            throw new SkippedException("Unable to create an unreadable properties file.");
+        }
         Path path = Paths.get("UnreadableRB.properties");
         Files.deleteIfExists(path);
         try {
@@ -98,7 +104,7 @@ private static void runCmd() throws Throwable {
     }
 
     private static void deleteFile(Path path) throws Throwable {
-        if(path.toFile().exists()) {
+        if (path.toFile().exists()) {
             ProcessTools.executeCommand("chmod", "666", path.toString())
                         .outputTo(System.out)
                         .errorTo(System.out)