8318599: HttpURLConnection cache issues leading to crashes in JGSS w/…

… native GSS introduced by 8303809

Reviewed-by: dfuchs

src/java.base/share/classes/sun/net/www/protocol/http/NegotiateAuthentication.java

@@ -152,7 +152,7 @@ private static HashMap<String, Negotiator> getCache() {
 
     @Override
     protected boolean useAuthCache() {
-        return super.useAuthCache() && cacheSPNEGO;
+        return false;
     }
 
     /**