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/*
* Copyright (c) 2014, 2015, 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 com.sun.tools.attach.*;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Properties;
import java.util.List;
import java.io.File;
import jdk.testlibrary.OutputAnalyzer;
import jdk.testlibrary.ProcessTools;
import jdk.testlibrary.ProcessThread;
/*
* @test
* @bug 8033104
* @summary Test to make sure attach and jvmstat works correctly when java.io.tmpdir is set
*
* @library /lib/testlibrary
* @modules jdk.attach
* jdk.jartool/sun.tools.jar
*
* @run build jdk.testlibrary.* Application RunnerUtil
* @run main/timeout=200 TempDirTest
*/
/*
* This test runs with an extra long timeout since it takes a really long time with -Xcomp
* when starting many processes.
*/
public class TempDirTest {
private static long startTime;
public static void main(String args[]) throws Throwable {
startTime = System.currentTimeMillis();
Path clientTmpDir = Files.createTempDirectory("TempDirTest-client");
clientTmpDir.toFile().deleteOnExit();
Path targetTmpDir = Files.createTempDirectory("TempDirTest-target");
targetTmpDir.toFile().deleteOnExit();
// run the test with all possible combinations of setting java.io.tmpdir
runExperiment(null, null);
runExperiment(clientTmpDir, null);
runExperiment(clientTmpDir, targetTmpDir);
runExperiment(null, targetTmpDir);
}
private static int counter = 0;
/*
* The actual test is in the nested class TestMain.
* The responsibility of this class is to:
* 1. Start the Application class in a separate process.
* 2. Find the pid and shutdown port of the running Application.
* 3. Launches the tests in nested class TestMain that will attach to the Application.
* 4. Shut down the Application.
*/
public static void runExperiment(Path clientTmpDir, Path targetTmpDir) throws Throwable {
System.out.print("### Running tests with overridden tmpdir for");
System.out.print(" client: " + (clientTmpDir == null ? "no" : "yes"));
System.out.print(" target: " + (targetTmpDir == null ? "no" : "yes"));
System.out.println(" ###");
long elapsedTime = (System.currentTimeMillis() - startTime) / 1000;
System.out.println("Started after " + elapsedTime + "s");
final String pidFile = "TempDirTest.Application.pid-" + counter++;
ProcessThread processThread = null;
try {
String[] tmpDirArg = null;
if (targetTmpDir != null) {
tmpDirArg = new String[] {"-Djava.io.tmpdir=" + targetTmpDir};
}
processThread = RunnerUtil.startApplication(tmpDirArg);
launchTests(processThread.getPid(), clientTmpDir);
} catch (Throwable t) {
System.out.println("TempDirTest got unexpected exception: " + t);
t.printStackTrace();
throw t;
} finally {
// Make sure the Application process is stopped.
RunnerUtil.stopApplication(processThread);
}
elapsedTime = (System.currentTimeMillis() - startTime) / 1000;
System.out.println("Completed after " + elapsedTime + "s");
}
/**
* Runs the actual tests in nested class TestMain.
* The reason for running the tests in a separate process
* is that we need to modify the class path and
* the -Djava.io.tmpdir property.
*/
private static void launchTests(long pid, Path clientTmpDir) throws Throwable {
final String sep = File.separator;
String classpath =
System.getProperty("test.class.path", "");
String[] tmpDirArg = null;
if (clientTmpDir != null) {
tmpDirArg = new String [] {"-Djava.io.tmpdir=" + clientTmpDir};
}
// Arguments : [-Djava.io.tmpdir=] -classpath cp TempDirTest$TestMain pid
String[] args = RunnerUtil.concat(
tmpDirArg,
new String[] {
"-classpath",
classpath,
"TempDirTest$TestMain",
Long.toString(pid) });
OutputAnalyzer output = ProcessTools.executeTestJvm(args);
output.shouldHaveExitValue(0);
}
/**
* This is the actual test. It will attach to the running Application
* and perform a number of basic attach tests.
*/
public static class TestMain {
public static void main(String args[]) throws Exception {
String pid = args[0];
// Test 1 - list method should list the target VM
System.out.println(" - Test: VirtualMachine.list");
List<VirtualMachineDescriptor> l = VirtualMachine.list();
boolean found = false;
for (VirtualMachineDescriptor vmd: l) {
if (vmd.id().equals(pid)) {
found = true;
break;
}
}
if (found) {
System.out.println(" - " + pid + " found.");
} else {
throw new RuntimeException(pid + " not found in VM list");
}
// Test 2 - try to attach and verify connection
System.out.println(" - Attaching to application ...");
VirtualMachine vm = VirtualMachine.attach(pid);
System.out.println(" - Test: system properties in target VM");
Properties props = vm.getSystemProperties();
String value = props.getProperty("attach.test");
if (value == null || !value.equals("true")) {
throw new RuntimeException("attach.test property not set");
}
System.out.println(" - attach.test property set as expected");
}
}
}
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