75 lines
2.5 KiB
Java
75 lines
2.5 KiB
Java
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/*
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* Copyright (c) 2013, 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.testlibrary.OutputAnalyzer;
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import jdk.testlibrary.ProcessTools;
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import jdk.testlibrary.Utils;
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import java.util.UUID;
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/**
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* This class will try to find an unused port and run a JdpTestCase using it.
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* The unused port is needed for jmxremote.port.
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* The problem with busy ports arises when running many automated tests on the same host.
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* Note that jdp.port is a multicast port and thus it can be binded by different processes at the same time.
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*/
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public abstract class DynamicLauncher {
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final String jdpName = UUID.randomUUID().toString();
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int jmxPort;
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protected void run() throws Exception {
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OutputAnalyzer out;
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int retries = 1;
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boolean tryAgain;
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do {
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tryAgain = false;
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jmxPort = Utils.getFreePort();
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out = runVM();
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try {
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out.shouldNotContain("Port already in use");
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} catch (RuntimeException e) {
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if (retries < 3) {
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retries++;
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tryAgain = true;
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}
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}
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} while (tryAgain);
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}
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protected OutputAnalyzer runVM() throws Exception {
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String[] options = this.options();
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ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(options);
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OutputAnalyzer out = new OutputAnalyzer(pb.start());
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System.out.println(out.getStdout());
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System.err.println(out.getStderr());
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return out;
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}
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protected abstract String[] options();
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}
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