1 /*
 2  * Copyright (c) 2020, 2021, 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.
22  */
23 
24 import java.io.File;
25 import java.util.Arrays;
26 import java.util.HashMap;
27 import java.util.List;
28 import java.util.Map;
29 
30 import jdk.test.lib.Utils;
31 import jdk.test.lib.apps.LingeredApp;
32 import jdk.test.lib.JDKToolLauncher;
33 import jdk.test.lib.process.OutputAnalyzer;
34 import jtreg.SkippedException;
35 
36 /**
37  * @test
38  * @bug 8240990
39  * @summary Test clhsdb dumpclass command
40  * @requires vm.hasSA
41  * @library /test/lib
42  * @run driver ClhsdbDumpclass
43  */
44 
45 public class ClhsdbDumpclass {
46     static final String APP_DOT_CLASSNAME = LingeredApp.class.getName();
47     static final String APP_SLASH_CLASSNAME = APP_DOT_CLASSNAME.replace('.', '/');
48 
49     public static void main(String[] args) throws Exception {
50         System.out.println("Starting ClhsdbDumpclass test");
51 
52         LingeredApp theApp = null;
53         try {
54             ClhsdbLauncher test = new ClhsdbLauncher();
55 
56             theApp = LingeredApp.startApp();
57             System.out.println("Started LingeredApp with pid " + theApp.getPid());
58 
59             // Run "dumpclass jdk/test/lib/apps/LingeredApp"
60             String cmd = "dumpclass " + APP_DOT_CLASSNAME;
61             List<String> cmds = List.of(cmd);
62             Map<String, List<String>> unExpStrMap = new HashMap<>();
63             unExpStrMap.put(cmd, List.of("class not found"));
64             test.run(theApp.getPid(), cmds, null, unExpStrMap);
65             File classFile = new File(APP_SLASH_CLASSNAME + ".class");
66             if (!classFile.exists()) {
67                 throw new RuntimeException("FAILED: Cannot find dumped .class file");
68             }
69 
70             // Run javap on the generated class file to make sure it's valid.
71             JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("javap");
72             launcher.addVMArgs(Utils.getTestJavaOpts());
73             launcher.addToolArg(classFile.toString());
74             System.out.println("> javap " + classFile.toString());
75             List<String> cmdStringList = Arrays.asList(launcher.getCommand());
76             ProcessBuilder pb = new ProcessBuilder(cmdStringList);
77             Process javap = pb.start();
78             OutputAnalyzer out = new OutputAnalyzer(javap);
79             javap.waitFor();
80             System.out.println(out.getStdout());
81             System.err.println(out.getStderr());
82             out.shouldHaveExitValue(0);
83             out.shouldMatch("public class " + APP_DOT_CLASSNAME);
84         } catch (SkippedException se) {
85             throw se;
86         } catch (Exception ex) {
87             throw new RuntimeException("Test ERROR " + ex, ex);
88         } finally {
89             LingeredApp.stopApp(theApp);
90         }
91         System.out.println("Test PASSED");
92     }
93 }