--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/lib-test/jdk/test/lib/apps/LingeredAppTest.java Mon Jun 08 11:11:46 2015 -0700
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 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.
+ */
+
+/*
+ * @test
+ * @summary Unit test for LingeredApp
+ * @compile LingeredAppTest.java
+ * @compile LingeredApp.java
+ * @run main LingeredAppTest
+ */
+
+package jdk.test.lib.apps;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+public class LingeredAppTest {
+
+ public static void main(String[] args) {
+ try {
+ System.out.println("Starting LingeredApp with default parameters");
+
+ ArrayList<String> cmd = new ArrayList<String>();
+
+ // Propagate test.vm.options to LingeredApp, filter out possible empty options
+ String testVmOpts[] = System.getProperty("test.vm.opts","").split("\\s+");
+ for (String s : testVmOpts) {
+ if (!s.equals("")) {
+ cmd.add(s);
+ }
+ }
+
+ cmd.add("-XX:+PrintFlagsFinal");
+
+ LingeredApp a = LingeredApp.startApp(cmd);
+ System.out.printf("App pid: %d\n", a.getPid());
+ a.stopApp();
+
+ System.out.println("App output:");
+ int count = 0;
+ for (String line : a.getAppOutput()) {
+ count += 1;
+ }
+ System.out.println("Found " + count + " lines in VM output");
+ System.out.println("Test PASSED");
+ } catch (IOException ex) {
+ ex.printStackTrace();
+ System.out.println("Test ERROR");
+ System.exit(3);
+ }
+ }
+}
--- a/test/lib/Makefile Wed Jul 05 20:37:12 2017 +0200
+++ b/test/lib/Makefile Mon Jun 08 11:11:46 2015 -0700
@@ -42,7 +42,8 @@
JAR = $(JDK_HOME)/bin/jar
WB_SRC_FILES = $(shell find $(SRC_DIR)/sun/hotspot -name '*.java')
-SHARE_SRC_FILES = $(shell find $(SRC_DIR)/share/classes -name '*.java')
+# test-lib.jar will contain only hprof classes until JDK-8081381 is resolved
+SHARE_SRC_FILES = $(shell find $(SRC_DIR)/share/classes/jdk/test/lib/hprof -name '*.java')
.PHONY: wb.filelist share.filelist clean cleantmp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/lib/share/classes/jdk/test/lib/apps/LingeredApp.java Mon Jun 08 11:11:46 2015 -0700
@@ -0,0 +1,434 @@
+/*
+ * Copyright (c) 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.
+ */
+
+package jdk.test.lib.apps;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.file.Files;
+import java.nio.file.NoSuchFileException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.nio.file.attribute.FileTime;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ * This is a framework to launch an app that could be synchronized with caller
+ * to make further attach actions reliable across supported platforms
+
+ * Caller example:
+ * SmartTestApp a = SmartTestApp.startApp(cmd);
+ * // do something
+ * a.stopApp();
+ *
+ * or fine grained control
+ *
+ * a = new SmartTestApp("MyLock.lck");
+ * a.createLock();
+ * a.runApp();
+ * a.waitAppReady();
+ * // do something
+ * a.deleteLock();
+ * a.waitAppTerminate();
+ *
+ * Then you can work with app output and process object
+ *
+ * output = a.getAppOutput();
+ * process = a.getProcess();
+ *
+ */
+public class LingeredApp {
+
+ private static final long spinDelay = 1000;
+
+ private final String lockFileName;
+ private long lockCreationTime;
+ private Process appProcess;
+ private final ArrayList<String> storedAppOutput;
+
+ /*
+ * Drain child process output, store it into string array
+ */
+ class InputGobbler extends Thread {
+
+ InputStream is;
+ List<String> astr;
+
+ InputGobbler(InputStream is, List<String> astr) {
+ this.is = is;
+ this.astr = astr;
+ }
+
+ public void run() {
+ try {
+ InputStreamReader isr = new InputStreamReader(is);
+ BufferedReader br = new BufferedReader(isr);
+ String line = null;
+ while ((line = br.readLine()) != null) {
+ astr.add(line);
+ }
+ } catch (IOException ex) {
+ // pass
+ }
+ }
+ }
+
+ /**
+ * Create LingeredApp object on caller side. Lock file have be a valid filename
+ * at writable location
+ *
+ * @param lockFileName - the name of lock file
+ */
+ public LingeredApp(String lockFileName) {
+ this.lockFileName = lockFileName;
+ this.storedAppOutput = new ArrayList<String>();
+ }
+
+ /**
+ *
+ * @return name of lock file
+ */
+ public String getLockFileName() {
+ return this.lockFileName;
+ }
+
+ /**
+ *
+ * @return name of testapp
+ */
+ public String getAppName() {
+ return this.getClass().getName();
+ }
+
+ /**
+ *
+ * @return pid of java process running testapp
+ */
+ public long getPid() {
+ if (appProcess == null) {
+ throw new RuntimeException("Process is not alive");
+ }
+ return appProcess.getPid();
+ }
+
+ /**
+ *
+ * @return process object
+ */
+ public Process getProcess() {
+ return appProcess;
+ }
+
+ /**
+ *
+ * @return application output as string array. Empty array if application produced no output
+ */
+ public List<String> getAppOutput() {
+ if (appProcess.isAlive()) {
+ throw new RuntimeException("Process is still alive. Can't get its output.");
+ }
+ return storedAppOutput;
+ }
+
+ /* Make sure all part of the app use the same method to get dates,
+ as different methods could produce different results
+ */
+ private static long epoch() {
+ return new Date().getTime();
+ }
+
+ private static long lastModified(String fileName) throws IOException {
+ Path path = Paths.get(fileName);
+ BasicFileAttributes attr = Files.readAttributes(path, BasicFileAttributes.class);
+ return attr.lastModifiedTime().toMillis();
+ }
+
+ private static void setLastModified(String fileName, long newTime) throws IOException {
+ Path path = Paths.get(fileName);
+ FileTime fileTime = FileTime.fromMillis(newTime);
+ Files.setLastModifiedTime(path, fileTime);
+ }
+
+ /**
+ * create lock
+ *
+ * @throws IOException
+ */
+ public void createLock() throws IOException {
+ Path path = Paths.get(lockFileName);
+ // Files.deleteIfExists(path);
+ Files.createFile(path);
+ lockCreationTime = lastModified(lockFileName);
+ }
+
+ /**
+ * Delete lock
+ *
+ * @throws IOException
+ */
+ public void deleteLock() throws IOException {
+ try {
+ Path path = Paths.get(lockFileName);
+ Files.delete(path);
+ } catch (NoSuchFileException ex) {
+ // Lock already deleted. Ignore error
+ }
+ }
+
+ public void waitAppTerminate() {
+ while (true) {
+ try {
+ appProcess.waitFor();
+ break;
+ } catch (InterruptedException ex) {
+ // pass
+ }
+ }
+ }
+
+ /**
+ * The app touches the lock file when it's started
+ * wait while it happens. Caller have to delete lock on wait error.
+ *
+ * @param timeout
+ * @throws java.io.IOException
+ */
+ public void waitAppReady(long timeout) throws IOException {
+ long here = epoch();
+ while (true) {
+ long epoch = epoch();
+ if (epoch - here > (timeout * 1000)) {
+ throw new IOException("App waiting timeout");
+ }
+
+ // Live process should touch lock file every second
+ long lm = lastModified(lockFileName);
+ if (lm > lockCreationTime) {
+ break;
+ }
+
+ // Make sure process didn't already exit
+ if (!appProcess.isAlive()) {
+ throw new IOException("App exited unexpectedly with " + appProcess.exitValue());
+ }
+
+ try {
+ Thread.sleep(spinDelay);
+ } catch (InterruptedException ex) {
+ // pass
+ }
+ }
+ }
+
+ /**
+ * Run the app
+ *
+ * @param vmArguments
+ * @throws IOException
+ */
+ public void runApp(List<String> vmArguments)
+ throws IOException {
+
+ // We should always use testjava or throw an exception,
+ // so we can't use JDKToolFinder.getJDKTool("java");
+ // that falls back to compile java on error
+ String jdkPath = System.getProperty("test.jdk");
+ if (jdkPath == null) {
+ // we are not under jtreg, try env
+ Map<String, String> env = System.getenv();
+ jdkPath = env.get("TESTJAVA");
+ }
+
+ if (jdkPath == null) {
+ throw new RuntimeException("Can't determine jdk path neither test.jdk property no TESTJAVA env are set");
+ }
+
+ String osname = System.getProperty("os.name");
+ String javapath = jdkPath + ((osname.startsWith("window")) ? "/bin/java.exe" : "/bin/java");
+
+ List<String> cmd = new ArrayList<String>();
+ cmd.add(javapath);
+
+
+ if (vmArguments == null) {
+ // Propagate test.vm.options to LingeredApp, filter out possible empty options
+ String testVmOpts[] = System.getProperty("test.vm.opts","").split("\\s+");
+ for (String s : testVmOpts) {
+ if (!s.equals("")) {
+ cmd.add(s);
+ }
+ }
+ }
+ else{
+ // Lets user manage LingerApp options
+ cmd.addAll(vmArguments);
+ }
+
+ // Make sure we set correct classpath to run the app
+ cmd.add("-cp");
+ String classpath = System.getProperty("test.class.path");
+ cmd.add((classpath == null) ? "." : classpath);
+
+ cmd.add(this.getAppName());
+ cmd.add(lockFileName);
+
+ // Reporting
+ StringBuilder cmdLine = new StringBuilder();
+ for (String strCmd : cmd) {
+ cmdLine.append("'").append(strCmd).append("' ");
+ }
+
+ // A bit of verbosity
+ System.out.println("Command line: [" + cmdLine.toString() + "]");
+
+ ProcessBuilder pb = new ProcessBuilder(cmd);
+ // we don't expect any error output but make sure we are not stuck on pipe
+ // pb.redirectErrorStream(false);
+ pb.redirectError(ProcessBuilder.Redirect.INHERIT);
+
+ appProcess = pb.start();
+
+ // Create pipe reader for process, and read stdin and stderr to array of strings
+ InputGobbler gb = new InputGobbler(appProcess.getInputStream(), storedAppOutput);
+ gb.start();
+ }
+
+ /**
+ * High level interface for test writers
+ */
+ /**
+ * Factory method that creates SmartAppTest object with ready to use application
+ * lock name is autogenerated, wait timeout is hardcoded
+ * @param cmd - vm options, could be null to auto add testvm.options
+ * @return LingeredApp object
+ * @throws IOException
+ */
+ public static LingeredApp startApp(List<String> cmd) throws IOException {
+ final String lockName = UUID.randomUUID().toString() + ".lck";
+ final int waitTime = 10;
+
+ LingeredApp a = new LingeredApp(lockName);
+ a.createLock();
+ try {
+ a.runApp(cmd);
+ a.waitAppReady(waitTime);
+ } catch (Exception ex) {
+ a.deleteLock();
+ throw ex;
+ }
+
+ return a;
+ }
+
+ public static LingeredApp startApp() throws IOException {
+ return startApp(null);
+ }
+
+ /**
+ * Delete lock file that signal app to terminate, then
+ * waits until app is actually terminated.
+ * @throws IOException
+ */
+ public void stopApp() throws IOException {
+ deleteLock();
+ waitAppTerminate();
+ int exitcode = appProcess.exitValue();
+ if (exitcode != 0) {
+ throw new IOException("LingeredApp terminated with non-zero exit code " + exitcode);
+ }
+ }
+
+ /**
+ * LastModified time might not work correctly in some cases it might
+ * cause later failures
+ */
+
+ public static boolean isLastModifiedWorking() {
+ boolean sane = true;
+ try {
+ long lm = lastModified(".");
+ if (lm == 0) {
+ System.err.println("SANITY Warning! The lastModifiedTime() doesn't work on this system, it returns 0");
+ sane = false;
+ }
+
+ long now = epoch();
+ if (lm > now) {
+ System.err.println("SANITY Warning! The Clock is wrong on this system lastModifiedTime() > getTime()");
+ sane = false;
+ }
+
+ setLastModified(".", epoch());
+ long lm1 = lastModified(".");
+ if (lm1 <= lm) {
+ System.err.println("SANITY Warning! The setLastModified doesn't work on this system");
+ sane = false;
+ }
+ }
+ catch(IOException e) {
+ System.err.println("SANITY Warning! IOException during sanity check " + e);
+ sane = false;
+ }
+
+ return sane;
+ }
+
+ /**
+ * This part is the application it self
+ */
+ public static void main(String args[]) {
+
+ if (args.length != 1) {
+ System.err.println("Lock file name is not specified");
+ System.exit(7);
+ }
+
+ String theLockFileName = args[0];
+
+ try {
+ Path path = Paths.get(theLockFileName);
+
+ while (Files.exists(path)) {
+ // Touch the lock to indicate our readiness
+ setLastModified(theLockFileName, epoch());
+ Thread.sleep(spinDelay);
+ }
+ } catch (NoSuchFileException ex) {
+ // Lock deleted while we are setting last modified time.
+ // Ignore error and lets the app exits
+ } catch (Exception ex) {
+ System.err.println("LingeredApp ERROR: " + ex);
+ // Leave exit_code = 1 to Java launcher
+ System.exit(3);
+ }
+
+ System.exit(0);
+ }
+}