test/jdk/sun/tools/jhsdb/JShellHeapDumpTest.java
branchdatagramsocketimpl-branch
changeset 58678 9cf78a70fa4f
child 58679 9c3209ff7550
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/sun/tools/jhsdb/JShellHeapDumpTest.java	Thu Oct 17 20:53:35 2019 +0100
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2019, 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
+ * @bug 8225715
+ * @requires vm.hasSAandCanAttach
+ * @library /test/lib
+ * @compile JShellHeapDumpTest.java
+ * @run main/timeout=240 JShellHeapDumpTest
+ */
+
+import static jdk.test.lib.Asserts.assertTrue;
+
+import java.io.IOException;
+import java.io.File;
+import java.util.List;
+import java.util.Arrays;
+import java.util.Map;
+
+import jdk.test.lib.JDKToolLauncher;
+import jdk.test.lib.JDKToolFinder;
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.hprof.parser.HprofReader;
+
+import jdk.jshell.JShell;
+
+public class JShellHeapDumpTest {
+
+    static Process jShellProcess;
+    static boolean doSleep = true; // By default do a short sleep when app starts up
+
+    public static void launch(String expectedMessage, List<String> toolArgs)
+        throws IOException {
+
+        try {
+            launchJshell();
+            long jShellPID = jShellProcess.pid();
+
+            System.out.println("Starting " + toolArgs.get(0) + " against " + jShellPID);
+            JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb");
+
+            for (String cmd : toolArgs) {
+                launcher.addToolArg(cmd);
+            }
+
+            launcher.addToolArg("--pid=" + Long.toString(jShellPID));
+
+            ProcessBuilder processBuilder = new ProcessBuilder(launcher.getCommand());
+            OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
+            System.out.println("jhsdb jmap stdout:");
+            System.out.println(output.getStdout());
+            System.out.println("jhsdb jmap stderr:");
+            System.out.println(output.getStderr());
+            System.out.println("###### End of all output:");
+            output.shouldHaveExitValue(0);
+        } catch (Exception ex) {
+            throw new RuntimeException("Test ERROR " + ex, ex);
+        } finally {
+            if (jShellProcess.isAlive()) {
+                System.out.println("Destroying jshell");
+                jShellProcess.destroy();
+                System.out.println("Jshell destroyed");
+            } else {
+                System.out.println("Jshell not alive");
+            }
+        }
+    }
+
+    public static void launch(String expectedMessage, String... toolArgs)
+        throws IOException {
+
+        launch(expectedMessage, Arrays.asList(toolArgs));
+    }
+
+    public static void printStackTraces(String file) throws IOException {
+        try {
+            String output = HprofReader.getStack(file, 0);
+            if (!output.contains("JShellToolProvider")) {
+                throw new RuntimeException("'JShellToolProvider' missing from stdout/stderr");
+            }
+        } catch (Exception ex) {
+            throw new RuntimeException("Test ERROR " + ex, ex);
+        }
+    }
+
+    public static void testHeapDump() throws IOException {
+        File hprofFile = new File("jhsdb.jmap.heap." +
+                             System.currentTimeMillis() + ".hprof");
+        if (hprofFile.exists()) {
+            hprofFile.delete();
+        }
+
+        launch("heap written to", "jmap",
+               "--binaryheap", "--dumpfile=" + hprofFile.getAbsolutePath());
+
+        assertTrue(hprofFile.exists() && hprofFile.isFile(),
+                   "Could not create dump file " + hprofFile.getAbsolutePath());
+
+        printStackTraces(hprofFile.getAbsolutePath());
+
+        System.out.println("hprof file size: " + hprofFile.length());
+        hprofFile.delete();
+    }
+
+    public static void launchJshell() throws IOException {
+        System.out.println("Starting Jshell");
+        long startTime = System.currentTimeMillis();
+        try {
+            ProcessBuilder pb = new ProcessBuilder(JDKToolFinder.getTestJDKTool("jshell"));
+            jShellProcess = ProcessTools.startProcess("JShell", pb,
+                                                      s -> {  // warm-up predicate
+                                                          return s.contains("Welcome to JShell");
+                                                      });
+        } catch (Exception ex) {
+            throw new RuntimeException("Test ERROR " + ex, ex);
+        }
+
+        long elapsedTime = System.currentTimeMillis() - startTime;
+        System.out.println("Jshell Started in " + elapsedTime + "ms");
+
+        // Give jshell a chance to fully start up. This makes SA more stable for the jmap dump.
+        try {
+            if (doSleep) {
+                Thread.sleep(2000);
+            }
+        } catch (Exception e) {
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        if (args.length == 1) {
+            if (args[0].equals("nosleep")) {
+                doSleep = false;
+            } else {
+                throw new RuntimeException("Invalid arg: " + args[0]);
+            }
+        } else if (args.length != 0) {
+            throw new RuntimeException("Too many args: " + args.length);
+        }
+        testHeapDump();
+
+        // The test throws RuntimeException on error.
+        // IOException is thrown if Jshell can't start because of some bad
+        // environment condition
+        System.out.println("Test PASSED");
+    }
+}