8312443: sun.security should use toLowerCase(Locale.ROOT)

Reviewed-by: xuelei

Author: John Jiang

src/java.base/share/classes/sun/security/action/GetPropertyAction.java

@@ -27,6 +27,7 @@
 
 import java.security.AccessController;
 import java.security.PrivilegedAction;
+import java.util.Locale;
 import java.util.Properties;
 import sun.security.util.Debug;
 
@@ -194,10 +195,10 @@ public static int privilegedGetTimeoutProp(String prop, int def, Debug dbg) {
         // the original value in rawPropVal for debug messages.
         boolean isMillis = false;
         String propVal = rawPropVal;
-        if (rawPropVal.toLowerCase().endsWith("ms")) {
+        if (rawPropVal.toLowerCase(Locale.ROOT).endsWith("ms")) {
             propVal = rawPropVal.substring(0, rawPropVal.length() - 2);
             isMillis = true;
-        } else if (rawPropVal.toLowerCase().endsWith("s")) {
+        } else if (rawPropVal.toLowerCase(Locale.ROOT).endsWith("s")) {
             propVal = rawPropVal.substring(0, rawPropVal.length() - 1);
         }
 

src/java.base/share/classes/sun/security/ec/ParametersMap.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2020, 2023, 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
@@ -31,6 +31,7 @@
 import java.security.spec.AlgorithmParameterSpec;
 import java.security.spec.NamedParameterSpec;
 import java.util.Collections;
+import java.util.Locale;
 import java.util.Map;
 import java.util.HashMap;
 import java.util.Optional;
@@ -53,7 +54,7 @@ public void fix() {
     }
 
     public void put(String name, ObjectIdentifier oid, int size, T params) {
-        nameMap.put(name.toLowerCase(), params);
+        nameMap.put(name.toLowerCase(Locale.ROOT), params);
         oidMap.put(oid, params);
         sizeMap.put(size, params);
     }
@@ -65,7 +66,7 @@ public Optional<T> getBySize(int size) {
         return Optional.ofNullable(sizeMap.get(size));
     }
     public Optional<T> getByName(String name) {
-        return Optional.ofNullable(nameMap.get(name.toLowerCase()));
+        return Optional.ofNullable(nameMap.get(name.toLowerCase(Locale.ROOT)));
     }
 
     // Utility method that is used by the methods below to handle exception

src/java.base/share/classes/sun/security/ec/XECParameters.java

@@ -137,7 +137,7 @@ private static XECParameters addParameters(int bits, BigInteger p, int a24,
         ObjectIdentifier oid = ObjectIdentifier.of(koid);
         XECParameters params =
             new XECParameters(bits, p, a24, basePoint, logCofactor, oid, name);
-        namedParams.put(name.toLowerCase(), oid, bits, params);
+        namedParams.put(name, oid, bits, params);
         return params;
     }
 
@@ -170,4 +170,3 @@ XECParameters get(Function<String, T> exception,
         return namedParams.get(exception, params);
     }
 }
-