--- a/src/java.base/share/classes/sun/net/www/protocol/https/HttpsURLConnectionImpl.java	Wed Apr 03 13:35:11 2019 -0700
+++ b/src/java.base/share/classes/sun/net/www/protocol/https/HttpsURLConnectionImpl.java	Wed Apr 10 15:49:24 2019 +0100
@@ -37,6 +37,7 @@
 import java.util.Map;
 import java.util.List;
 import java.util.Optional;
+import sun.net.util.IPAddressUtil;
 import sun.net.www.http.HttpClient;
 
 /**
@@ -69,6 +70,10 @@
                 throw new MalformedURLException("Illegal character in URL");
             }
         }
+        String s = IPAddressUtil.checkAuthority(u);
+        if (s != null) {
+            throw new MalformedURLException(s);
+        }
         return u;
     }
 
@@ -289,7 +294,7 @@
      * @param   key     the keyword by which the request is known
      *                  (e.g., "<code>accept</code>").
      * @param   value  the value associated with it.
-     * @see #getRequestProperties(java.lang.String)
+     * @see #getRequestProperty(java.lang.String)
      * @since 1.4
      */
     public void addRequestProperty(String key, String value) {