8269373: some tests in jdk/tools/launcher/ fails on localized Windows platform

Reviewed-by: naoto

test/jdk/tools/launcher/FXLauncherTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2021, 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
@@ -360,6 +360,10 @@ public class FXLauncherTest extends TestHelper {
      */
     @Test
     static void testMissingMC() throws Exception {
+        if (!isEnglishLocale()) {
+            return;
+        }
+
         String testname = "testMissingMC";
         testcount++;
         line();

test/jdk/tools/launcher/SourceMode.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2021, 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
@@ -200,6 +200,10 @@ public class SourceMode extends TestHelper {
     // java --add-exports=... Export.java --help
     @Test
     void testAddExports() throws IOException {
+        if (!isEnglishLocale()) {
+            return;
+        }
+
         starting("testAddExports");
         Path exportJava = Paths.get("Export.java");
         createFile(exportJava, List.of(
@@ -254,6 +258,10 @@ public class SourceMode extends TestHelper {
     // java --source N -cp ... HelloWorld
     @Test
     void testSourceClasspath() throws IOException {
+        if (!isEnglishLocale()) {
+            return;
+        }
+
         starting("testSourceClasspath");
         Path base = Files.createDirectories(Paths.get("testSourceClasspath"));
         Path src = Files.createDirectories(base.resolve("src"));