8294241: Deprecate URL public constructors

Reviewed-by: joehw, prr, alanb, aefimov, michaelm

src/java.base/share/classes/javax/crypto/JceSecurity.java.template

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2022, 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
@@ -243,7 +243,8 @@ final class JceSecurity {
 
     static {
         try {
-            NULL_URL = new URL("http://null.oracle.com/");
+            @SuppressWarnings("deprecation")
+            var _unused = NULL_URL = new URL("http://null.oracle.com/");
         } catch (Exception e) {
             throw new RuntimeException(e);
         }

src/java.base/share/classes/javax/crypto/ProviderVerifier.java

@@ -91,6 +91,7 @@ final class ProviderVerifier {
         // If the protocol of jarURL isn't "jar", we should
         // construct a JAR URL so we can open a JarURLConnection
         // for verifying this provider.
+        @SuppressWarnings("deprecation")
         final URL url = jarURL.getProtocol().equalsIgnoreCase("jar")?
                         jarURL : new URL("jar:" + jarURL + "!/");