8015799: HttpURLConnection.getHeaderFields() throws IllegalArgumentException

Reviewed-by: chegar, dsamersoff, khazra

src/share/classes/sun/net/www/protocol/http/HttpURLConnection.java

@@ -2806,9 +2806,10 @@ public class HttpURLConnection extends java.net.HttpURLConnection {
 
         if (SET_COOKIE.equalsIgnoreCase(name) ||
             SET_COOKIE2.equalsIgnoreCase(name)) {
+
             // Filtering only if there is a cookie handler. [Assumption: the
             // cookie handler will store/retrieve the HttpOnly cookies]
-            if (cookieHandler == null)
+            if (cookieHandler == null || value.length() == 0)
                 return value;
 
             sun.misc.JavaNetHttpCookieAccess access =

test/java/net/CookieHandler/EmptyCookieHeader.java

+/*
+ * Copyright (c) 2013, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8015799
+ * @summary HttpURLConnection.getHeaderFields() throws IllegalArgumentException
+ */
+
+import com.sun.net.httpserver.*;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.*;
+import java.util.*;
+
+public class EmptyCookieHeader {
+
+    public static void main(String[] args) throws Exception {
+        new EmptyCookieHeader().runTest();
+    }
+
+    public void runTest() throws Exception {
+        final CookieHandler oldHandler = CookieHandler.getDefault();
+        CookieHandler.setDefault(new TestCookieHandler());
+        HttpServer s = HttpServer.create(new InetSocketAddress(0), 0);
+        try {
+            startServer(s);
+            URL url = new URL("http://localhost:" + s.getAddress().getPort() + "/");
+            HttpURLConnection c = (HttpURLConnection)url.openConnection();
+            c.getHeaderFields();
+        } finally {
+            CookieHandler.setDefault(oldHandler);
+            s.stop(0);
+        }
+    }
+
+    static void startServer(HttpServer server) throws IOException {
+        server.createContext("/", new EmptyCookieHandler());
+        server.start();
+    }
+
+    static class EmptyCookieHandler implements HttpHandler {
+
+        @Override
+        public void handle(HttpExchange exchange) throws IOException {
+            String requestMethod = exchange.getRequestMethod();
+            if (requestMethod.equalsIgnoreCase("GET")) {
+                Headers responseHeaders = exchange.getResponseHeaders();
+                responseHeaders.set("Content-Type", "text/plain");
+                responseHeaders.set("Date", "June 13th 2012");
+
+                // No domain value set
+                responseHeaders.set("Set-Cookie2", "name=value");
+                responseHeaders.set("Set-Cookie2", "");
+                exchange.sendResponseHeaders(200, 0);
+                try (OutputStream os = exchange.getResponseBody()) {
+                    String str = "This is what the server sent!";
+                    os.write(str.getBytes());
+                }
+            }
+        }
+    }
+
+    class TestCookieHandler extends CookieHandler {
+        @Override
+        public Map<String,List<String>> get(URI uri,
+                                            Map<String,List<String>> respH) {
+            return new HashMap<>();
+        }
+
+        @Override
+        public void put(URI uri, Map<String,List<String >> respH) { }
+    }
+}