undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/jdk/java/net/ipv6tests/Tests.java
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test/jdk/java/net/ipv6tests/Tests.java
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/*
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* Copyright (c) 2003, 2025, 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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import jdk.test.lib.NetworkConfiguration;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.DatagramPacket;
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import java.net.DatagramSocket;
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import java.net.Inet4Address;
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import java.net.Inet6Address;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.Socket;
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import java.net.SocketAddress;
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public class Tests {
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static final boolean isWindows =
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System.getProperty("os.name").startsWith("Windows");
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static final boolean isMacOS =
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System.getProperty("os.name").contains("OS X");
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/**
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* performs a simple exchange of data between the two sockets
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* and throws an exception if there is any problem.
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*/
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public static void simpleDataExchange (Socket s1, Socket s2)
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throws Exception {
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InputStream i1 = s1.getInputStream();
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InputStream i2 = s2.getInputStream();
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OutputStream o1 = s1.getOutputStream();
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OutputStream o2 = s2.getOutputStream();
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startSimpleWriter("SimpleWriter-1", o1, 100);
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startSimpleWriter("SimpleWriter-2", o2, 200);
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simpleRead (i2, 100);
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simpleRead (i1, 200);
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}
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static void startSimpleWriter(String threadName, final OutputStream os, final int start) {
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(new Thread(new Runnable() {
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public void run() {
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try { simpleWrite(os, start); }
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catch (Exception e) {unexpected(e); }
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}}, threadName)).start();
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}
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static void unexpected(Exception e ) {
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System.out.println("Unexcepted Exception: " + e);
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e.printStackTrace();
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}
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/**
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* Send a packet from s1 to s2 (ia2/s2.localPort) and check it
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* Send a packet from s2 to s1 (ia1/s1.localPort) and check it
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*/
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public static void simpleDataExchange (DatagramSocket s1, InetAddress ia1,
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DatagramSocket s2, InetAddress ia2)
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throws Exception {
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SocketAddress dest1 = new InetSocketAddress (ia1, s1.getLocalPort());
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dprintln ("dest1 = " + dest1);
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SocketAddress dest2 = new InetSocketAddress (ia2, s2.getLocalPort());
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dprintln ("dest2 = " + dest2);
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byte[] ba = "Hello world".getBytes();
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byte[] bb = "HELLO WORLD1".getBytes();
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DatagramPacket p1 = new DatagramPacket (ba, ba.length, dest1);
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DatagramPacket p2 = new DatagramPacket (ba, ba.length, dest2);
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DatagramPacket r1 = new DatagramPacket (new byte[256], 256);
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DatagramPacket r2 = new DatagramPacket (new byte[256], 256);
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s2.send (p1);
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s1.send (p2);
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s1.receive (r1);
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s2.receive (r2);
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comparePackets (p1, r1);
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comparePackets (p2, r2);
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}
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/**
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* Send a packet from s1 to s2 (ia2/s2.localPort) and send same packet
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* back from s2 to sender. Check s1 receives original packet
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*/
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public static void datagramEcho (DatagramSocket s1, DatagramSocket s2,
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InetAddress ia2)
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throws Exception {
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byte[] ba = "Hello world".getBytes();
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DatagramPacket p1;
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SocketAddress dest2 = null;
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if (ia2 != null) {
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dest2 = new InetSocketAddress (ia2, s2.getLocalPort());
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p1 = new DatagramPacket (ba, ba.length, dest2);
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} else {
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p1 = new DatagramPacket (ba, ba.length);
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}
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dprintln ("dest2 = " + dest2);
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dprintln ("sender endpoint = " + s1.getLocalSocketAddress());
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dprintln ("echo endpoint = " + s2.getLocalSocketAddress());
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DatagramPacket r1 = new DatagramPacket (new byte[256], 256);
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DatagramPacket r2 = new DatagramPacket (new byte[256], 256);
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s1.send (p1);
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s2.receive (r1);
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s2.send (r1);
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s1.receive (r2);
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comparePackets (p1, r1);
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comparePackets (p1, r2);
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}
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public static void comparePackets (DatagramPacket p1, DatagramPacket p2)
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throws Exception {
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byte[] b1 = p1.getData();
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byte[] b2 = p2.getData();
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int len = p1.getLength () > p2.getLength() ? p2.getLength()
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: p1.getLength();
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for (int i=0; i<len; i++) {
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if (b1[i] != b2[i]) {
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throw new Exception ("packets not the same");
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}
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}
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}
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/* check the timeout breached lower bound time rule */
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public static void checkIfTimeOut(long got, long expected) {
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dprintln("checkIfTimeOut: got = " + got + " lower bound = " + expected);
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if (got < expected) {
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throw new RuntimeException("checkIfTimeOut failed: got " + got
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+ ", expected at least " + expected );
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}
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}
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static boolean debug = false;
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public static void checkDebug (String[] args) {
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debug = args.length > 0 && args[0].equals("-d");
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}
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public static void dprint (String s) {
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if (debug) {
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System.out.print (s);
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}
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}
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public static void dprintln (String s) {
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if (debug) {
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System.out.println (s);
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}
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}
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public static Inet4Address getFirstLocalIPv4Address () {
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return getNetworkConfig().ip4Addresses()
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.filter(a -> !a.isLoopbackAddress())
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.findFirst()
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.orElse(null);
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}
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public static Inet6Address getFirstLocalIPv6Address () {
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return getNetworkConfig().ip6Addresses()
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.filter(a -> !a.isLoopbackAddress())
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.findFirst()
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.orElse(null);
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}
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private static NetworkConfiguration getNetworkConfig() {
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try {
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return NetworkConfiguration.probe();
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} catch (IOException e) {
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System.out.println("Failed to probe NetworkConfiguration");
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throw new RuntimeException(e);
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}
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}
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/**
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* Throws a RuntimeException if the boolean condition is false
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*/
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public static void t_assert (boolean assertion) {
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if (assertion) {
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return;
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}
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Throwable t = new Throwable();
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StackTraceElement[] strace = t.getStackTrace();
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String msg = "Assertion failed at: " + strace[1].toString();
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throw new RuntimeException (msg);
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}
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private static void simpleRead (InputStream is, int start) throws Exception {
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byte b[] = new byte [2];
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for (int i=start; i<start+100; i++) {
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int x = is.read (b);
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if (x == 1) {
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x += is.read (b,1,1);
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}
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if (x!=2) {
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throw new Exception ("read error");
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}
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int r = bytes (b[0], b[1]);
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if (r != i) {
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throw new Exception ("read " + r + " expected " +i);
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}
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}
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}
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/* convert signed bytes to unisigned int */
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private static int bytes (byte b1, byte b2) {
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int i1 = (int)b1 & 0xFF;
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int i2 = (int)b2 & 0xFF;
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return i1 * 256 + i2;
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}
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static void simpleWrite (OutputStream os, int start) throws Exception {
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byte b[] = new byte [2];
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for (int i=start; i<start+100; i++) {
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b[0] = (byte) (i / 256);
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b[1] = (byte) (i % 256);
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os.write (b);
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}
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}
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private static class Runner extends Thread {
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Runnable runnee;
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long delay;
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Runner (Runnable runnee, long delay) {
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super();
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this.runnee = runnee;
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this.delay = delay;
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}
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public void run () {
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try {
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Thread.sleep (delay);
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runnee.run ();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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/*
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* Take the given Runnable and run it in a spawned thread
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* after the given time has elapsed. runAfter() returns immediately
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*/
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public static void runAfter (long millis, Runnable runnee) {
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Runner runner = new Runner (runnee, millis);
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runner.start ();
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}
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static String osname;
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static {
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osname = System.getProperty ("os.name");
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}
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static boolean isLinux () {
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return osname.equals ("Linux");
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}
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static boolean isWindows () {
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return osname.startsWith ("Windows");
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}
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}
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