8191538: SA: tests for clhsdb commands: vmstructsdump, field, symboltable and symbol
Summary: Create tests for the clhsdb commands: vmstructsdump, field, symboltable and symbol
Reviewed-by: sspitsyn, sballal
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
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* 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.
*
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import java.util.ArrayList;
import java.util.Scanner;
import java.util.List;
import java.io.File;
import java.io.IOException;
import java.util.stream.Collectors;
import java.io.OutputStream;
import jdk.test.lib.apps.LingeredApp;
import jdk.test.lib.JDKToolLauncher;
import jdk.test.lib.Platform;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.Utils;
import jdk.test.lib.Asserts;
/*
* @test
* @library /test/lib
* @run main/othervm TestClhsdbJstackLock
*/
public class TestClhsdbJstackLock {
private static final String JSTACK_OUT_FILE = "jstack_out.txt";
private static void verifyJStackOutput() throws Exception {
Exception unexpected = null;
File jstackFile = new File(JSTACK_OUT_FILE);
Asserts.assertTrue(jstackFile.exists() && jstackFile.isFile(),
"File with jstack output not created: " +
jstackFile.getAbsolutePath());
try {
Scanner scanner = new Scanner(jstackFile);
boolean classLockOwnerFound = false;
boolean classLockWaiterFound = false;
boolean objectLockOwnerFound = false;
boolean primitiveLockOwnerFound = false;
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
System.out.println(line);
if (line.contains("missing reason for ")) {
unexpected = new RuntimeException("Unexpected msg: missing reason for ");
break;
}
if (line.matches("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Class for LingeredAppWithLock\\)$")) {
classLockOwnerFound = true;
}
if (line.matches("^\\s+- waiting to lock <0x[0-9a-f]+> \\(a java\\.lang\\.Class for LingeredAppWithLock\\)$")) {
classLockWaiterFound = true;
}
if (line.matches("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Thread\\)$")) {
objectLockOwnerFound = true;
}
if (line.matches("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Class for int\\)$")) {
primitiveLockOwnerFound = true;
}
}
if (!classLockOwnerFound || !classLockWaiterFound ||
!objectLockOwnerFound || !primitiveLockOwnerFound) {
unexpected = new RuntimeException(
"classLockOwnerFound = " + classLockOwnerFound +
", classLockWaiterFound = " + classLockWaiterFound +
", objectLockOwnerFound = " + objectLockOwnerFound +
", primitiveLockOwnerFound = " + primitiveLockOwnerFound);
}
if (unexpected != null) {
throw unexpected;
}
} catch (Exception ex) {
throw new RuntimeException("Test ERROR " + ex, ex);
} finally {
jstackFile.delete();
}
}
private static void startClhsdbForLock(long lingeredAppPid) throws Exception {
Process p;
JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb");
launcher.addToolArg("clhsdb");
launcher.addToolArg("--pid");
launcher.addToolArg(Long.toString(lingeredAppPid));
ProcessBuilder pb = new ProcessBuilder();
pb.command(launcher.getCommand());
System.out.println(pb.command().stream().collect(Collectors.joining(" ")));
try {
p = pb.start();
} catch (Exception attachE) {
throw new Error("Couldn't start jhsdb or attach to LingeredApp : " + attachE);
}
// Issue the 'jstack' input at the clhsdb prompt.
OutputStream input = p.getOutputStream();
String str = "jstack > " + JSTACK_OUT_FILE + "\nquit\n";
try {
input.write(str.getBytes());
input.flush();
} catch (IOException ioe) {
throw new Error("Problem issuing the jstack command: " + str, ioe);
}
OutputAnalyzer output = new OutputAnalyzer(p);
try {
p.waitFor();
} catch (InterruptedException ie) {
p.destroyForcibly();
throw new Error("Problem awaiting the child process: " + ie, ie);
}
output.shouldHaveExitValue(0);
}
public static void main (String... args) throws Exception {
LingeredApp app = null;
if (!Platform.shouldSAAttach()) {
System.out.println("SA attach not expected to work - test skipped.");
return;
}
try {
List<String> vmArgs = new ArrayList<String>(Utils.getVmOptions());
app = new LingeredAppWithLock();
LingeredApp.startApp(vmArgs, app);
System.out.println ("Started LingeredApp with pid " + app.getPid());
startClhsdbForLock(app.getPid());
verifyJStackOutput();
} finally {
LingeredApp.stopApp(app);
}
}
}