--- a/langtools/test/jdk/jshell/ToolBasicTest.java	Wed Jul 05 21:31:37 2017 +0200
+++ b/langtools/test/jdk/jshell/ToolBasicTest.java	Mon Apr 04 10:31:20 2016 -0700
@@ -43,6 +43,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Locale;
 import java.util.Scanner;
 import java.util.function.BiFunction;
 import java.util.function.Consumer;
@@ -463,7 +464,7 @@
                     (a) -> assertCommandCheckOutput(a, "printf(\"\")", assertStartsWith("|  Error:\n|  cannot find symbol"))
             );
             test((a) -> assertCommand(a, "printf(\"A\")", "", "", null, "A", ""));
-            test(false, new String[]{"-startup", "UNKNOWN"}, "|  File 'UNKNOWN' for start-up is not found.");
+            test(Locale.ROOT, false, new String[]{"-startup", "UNKNOWN"}, "|  File 'UNKNOWN' for start-up is not found.");
         } finally {
             removeStartup();
         }
@@ -478,9 +479,9 @@
                 (a) -> assertCommand(a, "a", "|  Variable a of type double has value 10.0\n")
         );
         Path unknown = compiler.getPath("UNKNOWN.jar");
-        test(true, new String[]{unknown.toString()},
-                "|  File '" + unknown
-                + "' is not found: " + unresolvableMessage(unknown) + "\n");
+        test(Locale.ROOT, true, new String[]{unknown.toString()},
+                "|  File " + unknown
+                + " is not found: " + unresolvableMessage(unknown) + "\n");
     }
 
     public void testReset() {