diff --git a/src/jdk.crypto.ec/share/classes/sun/security/ec/XECParameters.java b/src/jdk.crypto.ec/share/classes/sun/security/ec/XECParameters.java
index 86555321ec8..4879398378a 100644
--- a/src/jdk.crypto.ec/share/classes/sun/security/ec/XECParameters.java
+++ b/src/jdk.crypto.ec/share/classes/sun/security/ec/XECParameters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 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
@@ -42,7 +42,8 @@ public class XECParameters {
     static final XECParameters X25519;
     static final XECParameters X448;
 
-    static ParametersMap<XECParameters> namedParams = new ParametersMap<>();
+    private static final ParametersMap<XECParameters> namedParams =
+        new ParametersMap<>();
 
     // Naming/identification parameters
     private final ObjectIdentifier oid;
diff --git a/src/jdk.crypto.ec/share/classes/sun/security/ec/ed/EdDSAParameters.java b/src/jdk.crypto.ec/share/classes/sun/security/ec/ed/EdDSAParameters.java
index 8221b3a528e..6e06a890bbd 100644
--- a/src/jdk.crypto.ec/share/classes/sun/security/ec/ed/EdDSAParameters.java
+++ b/src/jdk.crypto.ec/share/classes/sun/security/ec/ed/EdDSAParameters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, 2022, 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
@@ -147,7 +147,8 @@ public class EdDSAParameters {
         }
     }
 
-    static ParametersMap<EdDSAParameters> namedParams = new ParametersMap<>();
+    private static final ParametersMap<EdDSAParameters> namedParams =
+        new ParametersMap<>();
 
     private final String name;
     private final ObjectIdentifier oid;