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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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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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russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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test/jdk/java/nio/channels/ServerSocketChannel/NonBlockingAccept.java Normal file
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/*
* Copyright (c) 2003, 2016, 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 4801882 5046333 8141595
* @summary test ServerSocketAdaptor.accept on nonblocking channel
* @library ..
* @build TestUtil
* @run main NonBlockingAccept
* @key randomness
*/
import java.io.*;
import java.net.*;
import java.nio.*;
import java.nio.channels.*;
public class NonBlockingAccept {
public static void main(String[] args) throws Exception {
ServerSocketChannel ssc = ServerSocketChannel.open();
InetSocketAddress isa = TestUtil.bindToRandomPort(ssc);
ssc.configureBlocking(false);
ServerSocket ss = ssc.socket();
// Exception should be thrown when no connection is waiting
try {
ss.accept();
throw new RuntimeException("Expected exception not thrown");
} catch (IllegalBlockingModeException ibme) {
// Correct result
}
// No exception should be thrown when a connection is waiting (5046333)
SocketChannel sc = SocketChannel.open();
sc.configureBlocking(false);
sc.connect(isa);
// loop until accepted
while (true) {
try {
ss.accept();
break;
} catch (IllegalBlockingModeException ex) {
System.out.println(ex + ", sleeping ...");
Thread.sleep(100);
}
}
}
}