1 /*
2 * Copyright (c) 2020, 2023, 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 jdk.test.lib.SA.SATestUtils;
35 import jtreg.SkippedException;
36
37 /**
38 * @test
39 * @bug 8240990
40 * @summary Test clhsdb dumpclass command
41 * @requires vm.hasSA
42 * @library /test/lib
43 * @run driver ClhsdbDumpclass
44 */
45
46 public class ClhsdbDumpclass {
47 static final String APP_DOT_CLASSNAME = LingeredApp.class.getName();
48 static final String APP_SLASH_CLASSNAME = APP_DOT_CLASSNAME.replace('.', '/');
49
50 public static void main(String[] args) throws Exception {
51 if (SATestUtils.needsPrivileges()) {
52 // This test will create a file as root that cannot be easily deleted, so don't run it.
53 throw new SkippedException("Cannot run this test on OSX if adding privileges is required.");
54 }
55 System.out.println("Starting ClhsdbDumpclass test");
56
57 LingeredApp theApp = null;
58 try {
59 ClhsdbLauncher test = new ClhsdbLauncher();
60
61 theApp = LingeredApp.startApp();
62 System.out.println("Started LingeredApp with pid " + theApp.getPid());
63
64 // Run "dumpclass jdk/test/lib/apps/LingeredApp"
65 String cmd = "dumpclass " + APP_DOT_CLASSNAME;
66 List<String> cmds = List.of(cmd);
67 Map<String, List<String>> unExpStrMap = new HashMap<>();
68 unExpStrMap.put(cmd, List.of("class not found"));
69 test.run(theApp.getPid(), cmds, null, unExpStrMap);
70 File classFile = new File(APP_SLASH_CLASSNAME + ".class");
71 if (!classFile.exists()) {
72 throw new RuntimeException("FAILED: Cannot find dumped .class file");
73 }
74
75 // Run javap on the generated class file to make sure it's valid.
76 JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("javap");
77 launcher.addVMArgs(Utils.getTestJavaOpts());
78 // Let javap print additional info, e.g., StackMapTable
79 launcher.addToolArg("-verbose");
80 launcher.addToolArg(classFile.toString());
81 System.out.println("> javap " + classFile.toString());
82 List<String> cmdStringList = Arrays.asList(launcher.getCommand());
83 ProcessBuilder pb = new ProcessBuilder(cmdStringList);
84 Process javap = pb.start();
85 OutputAnalyzer out = new OutputAnalyzer(javap);
86 javap.waitFor();
87 System.out.println(out.getStdout());
88 System.err.println(out.getStderr());
89 out.shouldHaveExitValue(0);
90 out.shouldMatch("public identity class " + APP_DOT_CLASSNAME);
91 // StackMapTable might not be generated for a class
92 // containing only methods with sequential control flows.
93 // But the class used here (LingeredApp) is not such a case.
94 out.shouldContain("StackMapTable:");
95 out.shouldContain("BootstrapMethods:");
96 out.shouldNotContain("Error:");
97 } catch (SkippedException se) {
98 throw se;
99 } catch (Exception ex) {
100 throw new RuntimeException("Test ERROR " + ex, ex);
101 } finally {
102 LingeredApp.stopApp(theApp);
103 }
104 System.out.println("Test PASSED");
105 }
106 }