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/*
* Copyright (c) 2022, 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 8269488
* @summary verify that Process Reaper threads have a null CCL
* @run testng ProcessReaperCCL
*/
import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import org.testng.Assert;
import org.testng.annotations.Test;
public class ProcessReaperCCL {
@Test
static void test() throws Exception {
// create a class loader
File dir = new File(".");
URL[] urls = new URL[] {dir.toURI().toURL()};
ClassLoader cl = new URLClassLoader(urls);
Thread.currentThread().setContextClassLoader(cl);
// Invoke a subprocess with processBuilder
ProcessBuilder pb = new ProcessBuilder(List.of("echo", "abc", "xyz"));
Process p = pb.start();
CompletableFuture<Process> cf = p.onExit();
int exitValue = cf.get().exitValue();
Assert.assertEquals(exitValue, 0, "error exit value");
// Verify all "Process Reaper" threads have a null CCL
for (Thread th : Thread.getAllStackTraces().keySet()) {
if (th.getName().startsWith("process reaper")) {
Assert.assertEquals(th.getContextClassLoader(), null, "CCL not null");
}
}
}
}
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