http-client-branch: changed Redirect enums and implemented RFC 7231 auto redirect POST to GETs http-client-branch
authormichaelm
Mon, 12 Mar 2018 17:52:50 +0000
branchhttp-client-branch
changeset 56281 7fdd89dabab2
parent 56280 2baa59cfe37b
child 56282 10cebcd18d47
http-client-branch: changed Redirect enums and implemented RFC 7231 auto redirect POST to GETs
src/java.net.http/share/classes/java/net/http/HttpClient.java
src/java.net.http/share/classes/java/net/http/HttpRequest.java
src/java.net.http/share/classes/jdk/internal/net/http/HttpRequestBuilderImpl.java
src/java.net.http/share/classes/jdk/internal/net/http/RedirectFilter.java
test/jdk/java/net/httpclient/BasicRedirectTest.java
test/jdk/java/net/httpclient/DigestEchoClient.java
test/jdk/java/net/httpclient/HttpClientBuilderTest.java
test/jdk/java/net/httpclient/HttpRequestBuilderTest.java
test/jdk/java/net/httpclient/RedirectMethodChange.java
test/jdk/java/net/httpclient/RequestBuilderTest.java
test/jdk/java/net/httpclient/TimeoutBasic.java
test/jdk/java/net/httpclient/examples/JavadocExamples.java
--- a/src/java.net.http/share/classes/java/net/http/HttpClient.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/src/java.net.http/share/classes/java/net/http/HttpClient.java	Mon Mar 12 17:52:50 2018 +0000
@@ -454,6 +454,11 @@
      * <p> {@code Redirect} policy is set via the {@linkplain
      * HttpClient.Builder#followRedirects(Redirect) Builder.followRedirects}
      * method.
+     * <p>
+     * @implNote When automatic redirection occurs, the request method of the
+     * redirected request may be modified depending on the specific {@code 30X}
+     * status code, as specified in RFC 7231. In addition, the 301 and 302 status
+     * codes, cause a POST request to be converted to a GET in the redirected request.
      *
      * @since 11
      */
@@ -470,15 +475,9 @@
         ALWAYS,
 
         /**
-         * Redirect to same protocol only. Redirection may occur from HTTP URLs
-         * to other HTTP URLs, and from HTTPS URLs to other HTTPS URLs.
+         * Always redirect, except from HTTPS URLs to HTTP URLs.
          */
-        SAME_PROTOCOL,
-
-        /**
-         * Redirect always except from HTTPS URLs to HTTP URLs.
-         */
-        SECURE
+        NORMAL
     }
 
     /**
--- a/src/java.net.http/share/classes/java/net/http/HttpRequest.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/src/java.net.http/share/classes/java/net/http/HttpRequest.java	Mon Mar 12 17:52:50 2018 +0000
@@ -50,9 +50,9 @@
  * is obtained from one of the {@link HttpRequest#newBuilder(URI) newBuilder}
  * methods. A request's {@link URI}, headers, and body can be set. Request
  * bodies are provided through a {@link BodyPublisher BodyPublisher} supplied
- * to one of the {@link Builder#DELETE(BodyPublisher) DELETE},
- * {@link Builder#POST(BodyPublisher) POST} or
- * {@link Builder#PUT(BodyPublisher) PUT} methods.
+ * to one of the {@link Builder#POST(BodyPublisher) POST},
+ * {@link Builder#PUT(BodyPublisher) PUT} or {@link Builder#method(String,BodyPublisher)
+ * method} methods.
  * Once all required parameters have been set in the builder, {@link
  * Builder#build() build} will return the {@code HttpRequest}. Builders can be
  * copied and modified many times in order to build multiple related requests
@@ -242,15 +242,12 @@
         public Builder PUT(BodyPublisher bodyPublisher);
 
         /**
-         * Sets the request method of this builder to DELETE and sets its
-         * request body publisher to the given value.
-         *
-         * @param bodyPublisher the body publisher
+         * Sets the request method of this builder to DELETE.
          *
          * @return this builder
          */
 
-        public Builder DELETE(BodyPublisher bodyPublisher);
+        public Builder DELETE();
 
         /**
          * Sets the request method and request body of this builder to the
--- a/src/java.net.http/share/classes/jdk/internal/net/http/HttpRequestBuilderImpl.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/src/java.net.http/share/classes/jdk/internal/net/http/HttpRequestBuilderImpl.java	Mon Mar 12 17:52:50 2018 +0000
@@ -179,8 +179,8 @@
     }
 
     @Override
-    public HttpRequest.Builder DELETE(BodyPublisher body) {
-        return method0("DELETE", requireNonNull(body));
+    public HttpRequest.Builder DELETE() {
+        return method0("DELETE", null);
     }
 
     @Override
@@ -206,7 +206,6 @@
 
     private HttpRequest.Builder method0(String method, BodyPublisher body) {
         assert method != null;
-        assert !method.equals("GET") ? body != null : true;
         assert !method.equals("");
         this.method = method;
         this.bodyPublisher = body;
--- a/src/java.net.http/share/classes/jdk/internal/net/http/RedirectFilter.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/src/java.net.http/share/classes/jdk/internal/net/http/RedirectFilter.java	Mon Mar 12 17:52:50 2018 +0000
@@ -66,6 +66,22 @@
         return handleResponse(r);
     }
 
+    private String redirectedMethod(int statusCode, String orig) {
+        switch (statusCode) {
+            case 301:
+            case 302:
+                return orig.equals("POST") ? "GET" : orig;
+            case 303:
+                return "GET";
+            case 307:
+            case 308:
+                return orig;
+            default:
+                // unexpected but return orig
+                return orig;
+        }
+    }
+
     /**
      * Checks to see if a new request is needed and returns it.
      * Null means response is ok to return to user.
@@ -77,10 +93,11 @@
         }
         if (rcode >= 300 && rcode <= 399) {
             URI redir = getRedirectedURI(r.headers());
+            String newMethod = redirectedMethod(rcode, method);
             Log.logTrace("response code: {0}, redirected URI: {1}", rcode, redir);
             if (canRedirect(redir) && ++exchange.numberOfRedirects < max_redirects) {
-                Log.logTrace("redirecting to: {0}", redir);
-                return HttpRequestImpl.newInstanceForRedirection(redir, method, request);
+                Log.logTrace("redirect to: {0} with method: {1}", redir, newMethod);
+                return HttpRequestImpl.newInstanceForRedirection(redir, newMethod, request);
             } else {
                 Log.logTrace("not redirecting");
                 return null;
@@ -110,11 +127,9 @@
                 return true;
             case NEVER:
                 return false;
-            case SECURE:
+            case NORMAL:
                 return newScheme.equalsIgnoreCase(oldScheme)
                         || newScheme.equalsIgnoreCase("https");
-            case SAME_PROTOCOL:
-                return newScheme.equalsIgnoreCase(oldScheme);
             default:
                 throw new InternalError();
         }
--- a/test/jdk/java/net/httpclient/BasicRedirectTest.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/test/jdk/java/net/httpclient/BasicRedirectTest.java	Mon Mar 12 17:52:50 2018 +0000
@@ -95,17 +95,12 @@
                 { httpsURIToLessSecure,  Redirect.ALWAYS        },
                 { https2URIToLessSecure, Redirect.ALWAYS        },
 
-                { httpURI,               Redirect.SAME_PROTOCOL },
-                { httpsURI,              Redirect.SAME_PROTOCOL },
-                { http2URI,              Redirect.SAME_PROTOCOL },
-                { https2URI,             Redirect.SAME_PROTOCOL },
-
-                { httpURI,               Redirect.SECURE        },
-                { httpsURI,              Redirect.SECURE        },
-                { http2URI,              Redirect.SECURE        },
-                { https2URI,             Redirect.SECURE        },
-                { httpURIToMoreSecure,   Redirect.SECURE        },
-                { http2URIToMoreSecure,  Redirect.SECURE        },
+                { httpURI,               Redirect.NORMAL        },
+                { httpsURI,              Redirect.NORMAL        },
+                { http2URI,              Redirect.NORMAL        },
+                { https2URI,             Redirect.NORMAL        },
+                { httpURIToMoreSecure,   Redirect.NORMAL        },
+                { http2URIToMoreSecure,  Redirect.NORMAL        },
         };
     }
 
@@ -177,13 +172,8 @@
                 { httpsURIToLessSecure,  Redirect.NEVER         },
                 { https2URIToLessSecure, Redirect.NEVER         },
 
-                { httpURIToMoreSecure,   Redirect.SAME_PROTOCOL },
-                { http2URIToMoreSecure,  Redirect.SAME_PROTOCOL },
-                { httpsURIToLessSecure,  Redirect.SAME_PROTOCOL },
-                { https2URIToLessSecure, Redirect.SAME_PROTOCOL },
-
-                { httpsURIToLessSecure,  Redirect.SECURE        },
-                { https2URIToLessSecure, Redirect.SECURE        },
+                { httpsURIToLessSecure,  Redirect.NORMAL        },
+                { https2URIToLessSecure, Redirect.NORMAL        },
         };
     }
 
--- a/test/jdk/java/net/httpclient/DigestEchoClient.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/test/jdk/java/net/httpclient/DigestEchoClient.java	Mon Mar 12 17:52:50 2018 +0000
@@ -211,10 +211,10 @@
                 break;
             case PROXY305:
                 builder = builder.proxy(ProxySelector.of(server.getProxyAddress()));
-                builder = builder.followRedirects(HttpClient.Redirect.SAME_PROTOCOL);
+                builder = builder.followRedirects(HttpClient.Redirect.NORMAL);
                 break;
             case SERVER307:
-                builder = builder.followRedirects(HttpClient.Redirect.SAME_PROTOCOL);
+                builder = builder.followRedirects(HttpClient.Redirect.NORMAL);
                 break;
             default:
                 break;
--- a/test/jdk/java/net/httpclient/HttpClientBuilderTest.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/test/jdk/java/net/httpclient/HttpClientBuilderTest.java	Mon Mar 12 17:52:50 2018 +0000
@@ -207,10 +207,8 @@
         builder.followRedirects(Redirect.NEVER);
         assertTrue(builder.build().followRedirects() == Redirect.NEVER);
         assertThrows(NPE, () -> builder.followRedirects(null));
-        builder.followRedirects(Redirect.SAME_PROTOCOL);
-        assertTrue(builder.build().followRedirects() == Redirect.SAME_PROTOCOL);
-        builder.followRedirects(Redirect.SECURE);
-        assertTrue(builder.build().followRedirects() == Redirect.SECURE);
+        builder.followRedirects(Redirect.NORMAL);
+        assertTrue(builder.build().followRedirects() == Redirect.NORMAL);
     }
 
     @Test
--- a/test/jdk/java/net/httpclient/HttpRequestBuilderTest.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/test/jdk/java/net/httpclient/HttpRequestBuilderTest.java	Mon Mar 12 17:52:50 2018 +0000
@@ -155,8 +155,7 @@
                         (String[]) new String[] {"foo"},
                         IllegalArgumentException.class);
 
-        builder = test1("DELETE", builder, builder::DELETE,
-                        noBody(), null);
+        test0("DELETE", () -> HttpRequest.newBuilder(TEST_URI).DELETE().build(), null);
 
         builder = test1("POST", builder, builder::POST,
                         noBody(), null);
@@ -167,10 +166,6 @@
         builder = test2("method", builder, builder::method, "GET",
                         noBody(), null);
 
-        builder = test1("DELETE", builder, builder::DELETE,
-                        (HttpRequest.BodyPublisher)null,
-                        NullPointerException.class);
-
         builder = test1("POST", builder, builder::POST,
                         (HttpRequest.BodyPublisher)null,
                         NullPointerException.class);
@@ -231,8 +226,8 @@
                () -> HttpRequest.newBuilder(TEST_URI).PUT(ofString("")).GET(),
                "GET");
 
-        method("newBuilder(TEST_URI).DELETE(ofString(\"\")).GET().build().method() == GET",
-               () -> HttpRequest.newBuilder(TEST_URI).DELETE(ofString("")).GET(),
+        method("newBuilder(TEST_URI).DELETE().GET().build().method() == GET",
+               () -> HttpRequest.newBuilder(TEST_URI).DELETE().GET(),
                "GET");
 
         method("newBuilder(TEST_URI).POST(ofString(\"\")).build().method() == POST",
@@ -243,8 +238,8 @@
                () -> HttpRequest.newBuilder(TEST_URI).PUT(ofString("")),
                "PUT");
 
-        method("newBuilder(TEST_URI).DELETE(ofString(\"\")).build().method() == DELETE",
-               () -> HttpRequest.newBuilder(TEST_URI).DELETE(ofString("")),
+        method("newBuilder(TEST_URI).DELETE().build().method() == DELETE",
+               () -> HttpRequest.newBuilder(TEST_URI).DELETE(),
                "DELETE");
 
         method("newBuilder(TEST_URI).GET().POST(ofString(\"\")).build().method() == POST",
@@ -255,8 +250,8 @@
                () -> HttpRequest.newBuilder(TEST_URI).GET().PUT(ofString("")),
                "PUT");
 
-        method("newBuilder(TEST_URI).GET().DELETE(ofString(\"\")).build().method() == DELETE",
-               () -> HttpRequest.newBuilder(TEST_URI).GET().DELETE(ofString("")),
+        method("newBuilder(TEST_URI).GET().DELETE().build().method() == DELETE",
+               () -> HttpRequest.newBuilder(TEST_URI).GET().DELETE(),
                "DELETE");
 
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/net/httpclient/RedirectMethodChange.java	Mon Mar 12 17:52:50 2018 +0000
@@ -0,0 +1,202 @@
+/*
+ * Copyright (c) 2018, 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 8087112
+ * @modules java.net.http
+ *          jdk.httpserver
+ * @run main/othervm RedirectMethodChange
+ */
+
+import com.sun.net.httpserver.HttpContext;
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+import com.sun.net.httpserver.HttpServer;
+import com.sun.net.httpserver.Headers;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpRequest.BodyPublishers;
+import java.net.http.HttpResponse;
+import java.net.http.HttpResponse.BodyHandlers;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.logging.*;
+import static java.nio.charset.StandardCharsets.US_ASCII;
+
+public class RedirectMethodChange {
+
+    static volatile boolean ok;
+    static final String RESPONSE = "Hello world";
+    static final String POST_BODY = "This is the POST body 123909090909090";
+    static volatile URI TEST_URI, REDIRECT_URI;
+    static volatile HttpClient client;
+
+    public static void main(String[] args) throws Exception {
+        //Logger l = Logger.getLogger("com.sun.net.httpserver");
+        //l.setLevel(Level.ALL);
+        //ConsoleHandler ch = new ConsoleHandler();
+        //ch.setLevel(Level.ALL);
+        //l.addHandler(ch);
+
+        InetSocketAddress addr = new InetSocketAddress(InetAddress.getLoopbackAddress(),0);
+        HttpServer server = HttpServer.create(addr, 10);
+        ExecutorService e = Executors.newCachedThreadPool();
+        Handler h = new Handler();
+        HttpContext serverContext = server.createContext("/test/", h);
+        HttpContext serverContext1 = server.createContext("/redirect/", h);
+        int port = server.getAddress().getPort();
+        System.out.println("Server address = " + server.getAddress());
+
+        server.setExecutor(e);
+        server.start();
+        client = HttpClient.newBuilder()
+                      .followRedirects(HttpClient.Redirect.NORMAL)
+                      .build();
+
+        try {
+            TEST_URI = new URI("http://localhost:" + Integer.toString(port) + "/test/foo");
+            REDIRECT_URI = new URI("http://localhost:" + Integer.toString(port) + "/redirect/foo");
+            test("GET", 301, "GET");
+            test("GET", 302, "GET");
+            test("GET", 303, "GET");
+            test("GET", 307, "GET");
+            test("GET", 308, "GET");
+            test("POST", 301, "GET");
+            test("POST", 302, "GET");
+            test("POST", 303, "GET");
+            test("POST", 307, "POST");
+            test("POST", 308, "POST");
+            test("PUT", 301, "PUT");
+            test("PUT", 302, "PUT");
+            test("PUT", 303, "GET");
+            test("PUT", 307, "PUT");
+            test("PUT", 308, "PUT");
+        } finally {
+            server.stop(0);
+            e.shutdownNow();
+        }
+        System.out.println("OK");
+    }
+
+    static HttpRequest.BodyPublisher getRequestBodyFor(String method) {
+        switch (method) {
+            case "GET":
+            case "DELETE":
+            case "HEAD":
+                return HttpRequest.BodyPublishers.noBody();
+            case "POST":
+            case "PUT":
+                return HttpRequest.BodyPublishers.ofString(POST_BODY);
+            default:
+                throw new InternalError();
+        }
+    }
+
+    static void test(String method, int redirectCode, String expectedMethod) throws Exception {
+        System.err.printf("Test %s, %d, %s %s\n", method, redirectCode, expectedMethod, TEST_URI.toString());
+        HttpRequest req = HttpRequest.newBuilder(TEST_URI)
+            .method(method, getRequestBodyFor(method))
+            .header("X-Redirect-Code", Integer.toString(redirectCode))
+            .header("X-Expect-Method", expectedMethod)
+            .build();
+        HttpResponse<String> resp = client.send(req, BodyHandlers.ofString());
+
+        if (resp.statusCode() != 200 || !resp.body().equals(RESPONSE)) {
+            String msg = "Failed: " + resp.statusCode();
+            throw new RuntimeException(msg);
+        }
+    }
+
+    /**
+     * request to /test is first test. The following headers are checked:
+     * X-Redirect-Code: nnn    <the redirect code to send back>
+     * X-Expect-Method: the method that the client should use for the next request
+     *
+     * Following request should be to /redirect and should use the method indicated
+     * previously. If all ok, return a 200 response. Otherwise 500 error.
+     */
+    static class Handler implements HttpHandler {
+
+        volatile boolean inTest = false;
+        volatile String expectedMethod;
+
+        boolean readAndCheckBody(HttpExchange e) throws IOException {
+            InputStream is = e.getRequestBody();
+            String method = e.getRequestMethod();
+            String requestBody = new String(is.readAllBytes(), US_ASCII);
+            is.close();
+            if (method.equals("POST") || method.equals("PUT")) {
+                if (!requestBody.equals(POST_BODY)) {
+                    e.sendResponseHeaders(503, -1);
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        @Override
+        public void handle(HttpExchange he) throws IOException {
+            boolean newtest = he.getRequestURI().getPath().startsWith("/test");
+            if ((newtest && inTest) || (!newtest && !inTest)) {
+                he.sendResponseHeaders(500, -1);
+            }
+            if (newtest) {
+                String method = he.getRequestMethod();
+                Headers hdrs = he.getRequestHeaders();
+                int redirectCode = Integer.parseInt(hdrs.getFirst("X-Redirect-Code"));
+                expectedMethod = hdrs.getFirst("X-Expect-Method");
+                boolean ok = readAndCheckBody(he);
+                if (!ok)
+                    return;
+                hdrs = he.getResponseHeaders();
+                hdrs.set("Location", REDIRECT_URI.toString());
+                he.sendResponseHeaders(redirectCode, -1);
+                inTest = true;
+            } else {
+                // should be the redirect
+                if (!he.getRequestURI().getPath().startsWith("/redirect")) {
+                    he.sendResponseHeaders(501, -1);
+                } else if (!he.getRequestMethod().equals(expectedMethod)) {
+                    System.err.println("Expected: " + expectedMethod + " Got: " + he.getRequestMethod());
+                    he.sendResponseHeaders(504, -1);
+                } else {
+                    boolean ok = readAndCheckBody(he);
+                    if (ok) {
+                        he.sendResponseHeaders(200, RESPONSE.length());
+                        OutputStream os = he.getResponseBody();
+                        os.write(RESPONSE.getBytes(US_ASCII));
+                        os.close();
+                    }
+                }
+                inTest = false;
+            }
+        }
+    }
+}
--- a/test/jdk/java/net/httpclient/RequestBuilderTest.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/test/jdk/java/net/httpclient/RequestBuilderTest.java	Mon Mar 12 17:52:50 2018 +0000
@@ -94,7 +94,6 @@
         assertThrows(NPE, () -> builder.setHeader("name", null));
         assertThrows(NPE, () -> builder.setHeader(null, "value"));
         assertThrows(NPE, () -> builder.timeout(null));
-        assertThrows(NPE, () -> builder.DELETE(null));
         assertThrows(NPE, () -> builder.POST(null));
         assertThrows(NPE, () -> builder.PUT(null));
     }
@@ -144,7 +143,7 @@
         assertEquals(request.method(), "GET");
         assertTrue(!request.bodyPublisher().isPresent());
 
-        request = newBuilder(uri).DELETE(BodyPublishers.ofString("")).GET().build();
+        request = newBuilder(uri).DELETE().GET().build();
         assertEquals(request.method(), "GET");
         assertTrue(!request.bodyPublisher().isPresent());
 
@@ -156,9 +155,9 @@
         assertEquals(request.method(), "PUT");
         assertTrue(request.bodyPublisher().isPresent());
 
-        request = newBuilder(uri).DELETE(BodyPublishers.ofString("")).build();
+        request = newBuilder(uri).DELETE().build();
         assertEquals(request.method(), "DELETE");
-        assertTrue(request.bodyPublisher().isPresent());
+        assertTrue(!request.bodyPublisher().isPresent());
 
         request = newBuilder(uri).GET().POST(BodyPublishers.ofString("")).build();
         assertEquals(request.method(), "POST");
@@ -168,9 +167,9 @@
         assertEquals(request.method(), "PUT");
         assertTrue(request.bodyPublisher().isPresent());
 
-        request = newBuilder(uri).GET().DELETE(BodyPublishers.ofString("")).build();
+        request = newBuilder(uri).GET().DELETE().build();
         assertEquals(request.method(), "DELETE");
-        assertTrue(request.bodyPublisher().isPresent());
+        assertTrue(!request.bodyPublisher().isPresent());
 
         // CONNECT is disallowed in the implementation, since it is used for
         // tunneling, and is handled separately for security checks.
--- a/test/jdk/java/net/httpclient/TimeoutBasic.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/test/jdk/java/net/httpclient/TimeoutBasic.java	Mon Mar 12 17:52:50 2018 +0000
@@ -98,8 +98,7 @@
     }
 
     static HttpRequest.Builder DELETE(HttpRequest.Builder builder) {
-        HttpRequest.BodyPublisher noBody = HttpRequest.BodyPublishers.noBody();
-        return builder.DELETE(noBody);
+        return builder.DELETE();
     }
 
     static HttpRequest.Builder PUT(HttpRequest.Builder builder) {
--- a/test/jdk/java/net/httpclient/examples/JavadocExamples.java	Mon Mar 12 17:30:38 2018 +0000
+++ b/test/jdk/java/net/httpclient/examples/JavadocExamples.java	Mon Mar 12 17:52:50 2018 +0000
@@ -62,7 +62,7 @@
         //Synchronous Example
         HttpClient client = HttpClient.newBuilder()
                 .version(Version.HTTP_1_1)
-                .followRedirects(Redirect.SAME_PROTOCOL)
+                .followRedirects(Redirect.NORMAL)
                 .proxy(ProxySelector.of(new InetSocketAddress("proxy.example.com", 80)))
                 .authenticator(Authenticator.getDefault())
                 .build();