| /* |
| * Copyright (c) 2012, 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 7128648 |
| * @summary HttpURLConnection.getHeaderFields should return an unmodifiable Map |
| */ |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.URI; |
| import java.net.HttpURLConnection; |
| import java.util.Collection; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import com.sun.net.httpserver.HttpExchange; |
| import com.sun.net.httpserver.HttpHandler; |
| import com.sun.net.httpserver.HttpServer; |
| import com.sun.net.httpserver.Headers; |
| |
| public class UnmodifiableMaps { |
| |
| void test(String[] args) throws Exception { |
| HttpServer server = startHttpServer(); |
| try { |
| InetSocketAddress address = server.getAddress(); |
| URI uri = new URI("http://" + InetAddress.getLocalHost().getHostAddress() |
| + ":" + address.getPort() + "/foo"); |
| doClient(uri); |
| } finally { |
| server.stop(0); |
| } |
| } |
| |
| void doClient(URI uri) throws Exception { |
| HttpURLConnection uc = (HttpURLConnection) uri.toURL().openConnection(); |
| |
| // Test1: getRequestProperties is unmodifiable |
| System.out.println("Check getRequestProperties"); |
| checkUnmodifiable(uc.getRequestProperties()); |
| uc.addRequestProperty("X", "V"); |
| uc.addRequestProperty("X1", "V1"); |
| checkUnmodifiable(uc.getRequestProperties()); |
| |
| int resp = uc.getResponseCode(); |
| check(resp == 200, |
| "Unexpected response code. Expected 200, got " + resp); |
| |
| // Test2: getHeaderFields is unmodifiable |
| System.out.println("Check getHeaderFields"); |
| checkUnmodifiable(uc.getHeaderFields()); |
| // If the implementation does caching, check again. |
| checkUnmodifiable(uc.getHeaderFields()); |
| } |
| |
| // HTTP Server |
| HttpServer startHttpServer() throws IOException { |
| HttpServer httpServer = HttpServer.create(new InetSocketAddress(0), 0); |
| httpServer.createContext("/foo", new SimpleHandler()); |
| httpServer.start(); |
| return httpServer; |
| } |
| |
| class SimpleHandler implements HttpHandler { |
| @Override |
| public void handle(HttpExchange t) throws IOException { |
| Headers respHeaders = t.getResponseHeaders(); |
| // ensure some response headers, over the usual ones |
| respHeaders.add("RespHdr1", "Value1"); |
| respHeaders.add("RespHdr2", "Value2"); |
| respHeaders.add("RespHdr3", "Value3"); |
| t.sendResponseHeaders(200, -1); |
| t.close(); |
| } |
| } |
| |
| void checkUnmodifiable(Map<String,List<String>> map) { |
| checkUnmodifiableMap(map); |
| |
| // Now check the individual values |
| Collection<List<String>> values = map.values(); |
| for (List<String> value : values) { |
| checkUnmodifiableList(value); |
| } |
| } |
| |
| void checkUnmodifiableMap(final Map<String,List<String>> map) { |
| expectThrow( new Runnable() { |
| public void run() { map.clear(); }}); |
| expectThrow( new Runnable() { |
| public void run() { map.put("X", new ArrayList<String>()); }}); |
| expectThrow( new Runnable() { |
| public void run() { map.remove("X"); }}); |
| } |
| |
| void checkUnmodifiableList(final List<String> list) { |
| expectThrow( new Runnable() { |
| public void run() { list.clear(); }}); |
| expectThrow( new Runnable() { |
| public void run() { list.add("X"); }}); |
| expectThrow( new Runnable() { |
| public void run() { list.remove("X"); }}); |
| } |
| |
| void expectThrow(Runnable r) { |
| try { r.run(); fail("Excepted UOE to be thrown."); Thread.dumpStack(); } |
| catch (UnsupportedOperationException e) { pass(); } |
| } |
| |
| volatile int passed = 0, failed = 0; |
| void pass() {passed++;} |
| void fail() {failed++;} |
| void fail(String msg) {System.err.println(msg); fail();} |
| void unexpected(Throwable t) {failed++; t.printStackTrace();} |
| void check(boolean cond, String failMessage) {if (cond) pass(); else fail(failMessage);} |
| public static void main(String[] args) throws Throwable { |
| Class<?> k = new Object(){}.getClass().getEnclosingClass(); |
| try {k.getMethod("instanceMain",String[].class) |
| .invoke( k.newInstance(), (Object) args);} |
| catch (Throwable e) {throw e.getCause();}} |
| public void instanceMain(String[] args) throws Throwable { |
| try {test(args);} catch (Throwable t) {unexpected(t);} |
| System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
| if (failed > 0) throw new AssertionError("Some tests failed");} |
| } |
| |