130 lines
4.2 KiB
Java
130 lines
4.2 KiB
Java
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 6598160
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* @library /test/lib
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* @summary Windows IPv6 Socket implementation doesn't set the handle to not inherit
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* @author Chris Hegarty
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* @run main InheritHandle
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* @run main/othervm -Djava.net.preferIPv4Stack=true InheritHandle
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*/
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import java.net.BindException;
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import java.net.ServerSocket;
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import java.io.File;
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import java.io.IOException;
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import jdk.test.lib.net.IPSupport;
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/**
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* This test is only really applicable to Windows machines that are running IPv6, but
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* it should still pass on other platforms so we can just run it.
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*/
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public class InheritHandle
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{
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static String java = System.getProperty("java.home") + File.separator +
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"bin" + File.separator + "java";
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public static void main(String[] args) {
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IPSupport.throwSkippedExceptionIfNonOperational();
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if (args.length == 1) {
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doWait();
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} else {
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startTest();
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}
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}
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static void startTest() {
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ServerSocket ss;
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int port;
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Process process;
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// create a ServerSocket listening on any port
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try {
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ss = new ServerSocket(0);
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port = ss.getLocalPort();
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System.out.println("First ServerSocket listening on port " + port);
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} catch (IOException e) {
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System.out.println("Cannot create ServerSocket");
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e.printStackTrace();
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return;
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}
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// create another java process that simply waits. If the bug is present this
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// process will inherit the native IPv6 handle for ss and cause the second
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// ServerSocket constructor to throw a BindException
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try {
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process = Runtime.getRuntime().exec(java + " InheritHandle -doWait");
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} catch (IOException ioe) {
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System.out.println("Cannot create process");
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ioe.printStackTrace();
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try {
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ss.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return;
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}
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// Allow some time for the process to get started
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try {
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System.out.println("waiting...");
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Thread.sleep(2 * 1000);
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System.out.println("Now close the socket and try to create another" +
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" one listening on the same port");
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ss.close();
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int retries = 0;
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while (retries < 5) {
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try (ServerSocket s = new ServerSocket(port);) {
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System.out.println("Second ServerSocket created successfully");
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break;
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} catch (BindException e) {
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System.out.println("BindException \"" + e.getMessage() + "\", retrying...");
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Thread.sleep(100L);
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retries ++;
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continue;
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}
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}
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} catch (InterruptedException ie) {
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} catch (IOException ioe) {
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throw new RuntimeException("Failed: " + ioe);
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} finally {
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process.destroy();
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}
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System.out.println("OK");
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}
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static void doWait() {
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try {
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Thread.sleep(200 * 1000);
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} catch (InterruptedException ie) {
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}
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}
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}
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