1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
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  23 
  24 /**
  25  * @test
  26  * @bug 8209790
  27  * @summary Checks ability for connecting to debug server (jstack, jmap, jinfo, jsnap)
  28  * @requires vm.hasSAandCanAttach
  29  * @requires os.family != "windows"
  30  * @modules java.base/jdk.internal.misc
  31  * @library /test/lib
  32  *
  33  * @run main/othervm DebugdConnectTest
  34  */
  35 
  36 import java.io.IOException;
  37 
  38 import jdk.test.lib.JDKToolLauncher;
  39 import jdk.test.lib.apps.LingeredApp;
  40 import jdk.test.lib.process.OutputAnalyzer;
  41 
  42 
  43 public class DebugdConnectTest {
  44 
  45     private static OutputAnalyzer runJHSDB(String command, String id) throws IOException, InterruptedException {
  46         JDKToolLauncher jhsdbLauncher = JDKToolLauncher.createUsingTestJDK("jhsdb");
  47         jhsdbLauncher.addToolArg(command);
  48         jhsdbLauncher.addToolArg("--connect");
  49         if (id != null) {
  50             jhsdbLauncher.addToolArg(id + "@localhost");
  51         } else {
  52             jhsdbLauncher.addToolArg("localhost");
  53         }
  54 
  55         Process jhsdb = (new ProcessBuilder(jhsdbLauncher.getCommand())).start();
  56         OutputAnalyzer out = new OutputAnalyzer(jhsdb);
  57 
  58         jhsdb.waitFor();
  59 
  60         System.out.println(out.getStdout());
  61         System.err.println(out.getStderr());
  62 
  63         return out;
  64     }
  65 
  66     private static void runJSTACK(String id) throws IOException, InterruptedException {
  67         OutputAnalyzer out = runJHSDB("jstack", id);
  68 
  69         out.shouldContain("LingeredApp");
  70         out.stderrShouldBeEmpty();
  71         out.shouldHaveExitValue(0);
  72     }
  73 
  74     private static void runJMAP(String id) throws IOException, InterruptedException {
  75         OutputAnalyzer out = runJHSDB("jmap", id);
  76 
  77         out.shouldContain("JVM version is");
  78         out.stderrShouldBeEmpty();
  79         out.shouldHaveExitValue(0);
  80     }
  81 
  82     private static void runJINFO(String id) throws IOException, InterruptedException {
  83         OutputAnalyzer out = runJHSDB("jinfo", id);
  84 
  85         out.shouldContain("Java System Properties:");
  86         out.stderrShouldBeEmpty();
  87         out.shouldHaveExitValue(0);
  88     }
  89 
  90     private static void runJSNAP(String id) throws IOException, InterruptedException {
  91         OutputAnalyzer out = runJHSDB("jsnap", id);
  92 
  93         out.shouldContain("java.vm.name=");
  94         out.stderrShouldBeEmpty();
  95         out.shouldHaveExitValue(0);
  96     }
  97 
  98     private static void runTests(String id, long debuggeePid) throws IOException, InterruptedException {
  99         DebugdUtils debugd = new DebugdUtils(id);
 100         debugd.attach(debuggeePid);
 101 
 102         try {
 103             runJSTACK(id);
 104             runJMAP(id);
 105             runJINFO(id);
 106             runJSNAP(id);
 107         } finally {
 108             debugd.detach();
 109         }
 110     }
 111 
 112     public static void main(String[] args) throws Exception {
 113         LingeredApp app = null;
 114 
 115         try {
 116             app = LingeredApp.startApp();
 117             System.out.println("Started LingeredApp with pid " + app.getPid());
 118 
 119             System.out.println("debugd connection test with server id:");
 120             runTests("test", app.getPid());
 121 
 122             System.out.println("debugd connection test without server id:");
 123             runTests(null, app.getPid());
 124         } finally {
 125             LingeredApp.stopApp(app);
 126         }
 127 
 128     }
 129 
 130 }