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/*
* Copyright (c) 2013, 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
* 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.
*/
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.Utils;
import java.util.UUID;
/**
* This class will try to find an unused port and run a JdpTestCase using it.
* The unused port is needed for jmxremote.port.
* The problem with busy ports arises when running many automated tests on the same host.
* Note that jdp.port is a multicast port and thus it can be binded by different processes at the same time.
*/
public abstract class DynamicLauncher {
private static final int MAX_RETRY_ATTEMPTS = 10;
final String jdpName = UUID.randomUUID().toString();
OutputAnalyzer output;
int jmxPort;
protected void run() throws Exception {
int retries = 1;
boolean tryAgain;
do {
tryAgain = false;
jmxPort = Utils.getFreePort();
output = runVM();
try {
output.shouldNotContain("Port already in use");
} catch (RuntimeException e) {
if (retries < MAX_RETRY_ATTEMPTS) {
retries++;
tryAgain = true;
}
}
} while (tryAgain);
output.shouldHaveExitValue(0);
// java.lang.Exception is thrown by JdpTestCase if something goes wrong
// for instance - see JdpTestCase::shutdown()
output.shouldNotContain("java.lang.Exception:");
output.shouldNotContain("Error: Could not find or load main class");
}
protected OutputAnalyzer runVM() throws Exception {
String[] options = this.options();
ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(options);
OutputAnalyzer out = ProcessTools.executeProcess(pb);
System.out.println(out.getStdout());
System.err.println(out.getStderr());
return out;
}
protected abstract String[] options();
protected OutputAnalyzer getProcessOutpoutAnalyzer() {
return output;
}
}
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