stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

8299813: java/nio/channels/DatagramChannel/Disconnect.java fails with jtreg test timeout due to lost datagram

Browse Source 
Reviewed-by: aefimov
This commit is contained in:
Daniel Fuchs 2024-06-28 11:13:11 +00:00
parent 8ec378a6c8
commit 49eb00da8d
1 changed files with 32 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
test/jdk/java/nio/channels/DatagramChannel/Disconnect.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2012, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2024, 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
@ -34,6 +34,7 @@ import java.net.*;
import java.nio.*;
import java.nio.channels.*;
import java.io.IOException;
import jdk.test.lib.net.IPSupport;
public class Disconnect {
@ -42,43 +43,61 @@ public class Disconnect {
// test with default protocol family
try (DatagramChannel dc = DatagramChannel.open()) {
test(dc);
test(dc);
InetAddress lo = InetAddress.getLoopbackAddress();
System.out.println("Testing with default family and " + lo);
test(dc, lo);
test(dc, lo);
}
if (IPSupport.hasIPv4()) {
// test with IPv4 only
try (DatagramChannel dc = DatagramChannel.open(StandardProtocolFamily.INET)) {
test(dc);
test(dc);
InetAddress lo4 = InetAddress.ofLiteral("127.0.0.1");
System.out.println("Testing with INET family and " + lo4);
test(dc, lo4);
test(dc, lo4);
}
}
if (IPSupport.hasIPv6()) {
// test with IPv6 only
try (DatagramChannel dc = DatagramChannel.open(StandardProtocolFamily.INET6)) {
test(dc);
test(dc);
InetAddress lo6 = InetAddress.ofLiteral("::1");
System.out.println("Testing with INET6 family and " + lo6);
test(dc, lo6);
test(dc, lo6);
}
}
}
static int getLocalPort(DatagramChannel ch) throws IOException {
return ((InetSocketAddress) ch.getLocalAddress()).getPort();
}
/**
* Connect DatagramChannel to a server, write a datagram and disconnect. Invoke
* a second or subsequent time with the same DatagramChannel instance to check
* that disconnect works as expected.
*/
static void test(DatagramChannel dc) throws IOException {
static void test(DatagramChannel dc, InetAddress lo) throws IOException {
try (DatagramChannel server = DatagramChannel.open()) {
server.bind(new InetSocketAddress(0));
server.bind(new InetSocketAddress(lo, 0));
InetAddress lh = InetAddress.getLocalHost();
dc.connect(new InetSocketAddress(lh, server.socket().getLocalPort()));
SocketAddress dcbound = dc.getLocalAddress();
dc.connect(new InetSocketAddress(lo, server.socket().getLocalPort()));
System.out.println("dc bound to " + dcbound + " and connected from " +
dc.getLocalAddress() + " to " + dc.getRemoteAddress());
dc.write(ByteBuffer.wrap("hello".getBytes()));
ByteBuffer bb = ByteBuffer.allocate(100);
server.receive(bb);
if (getLocalPort(dc) != getLocalPort(server)) {
ByteBuffer bb = ByteBuffer.allocate(100);
server.receive(bb);
} else {
// some systems may allow dc and server to bind to the same port.
// when that happen the datagram may never be received
System.out.println("Server and clients are bound to the same port: skipping receive");
}
dc.disconnect();