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 *

 * 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,

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import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.ArrayList;

import jdk.test.lib.apps.LingeredApp;

/**

 * @test

 * @bug 8192985

 * @summary Test the clhsdb 'inspect' command

 * @requires vm.hasSA

 * @library /test/lib

 * @run main/othervm ClhsdbInspect

 */

public class ClhsdbInspect {

    public static void main(String[] args) throws Exception {

        System.out.println("Starting the ClhsdbInspect test");

        LingeredAppWithLock theApp = null;

        try {

            ClhsdbLauncher test = new ClhsdbLauncher();

            theApp = new LingeredAppWithLock();

            LingeredApp.startApp(null, theApp);

            System.out.println("Started LingeredApp with pid " + theApp.getPid());

            // Run the 'jstack -v' command to get the address of a Method*,

            // the oop address of a java.lang.ref.ReferenceQueue$Lock

            // and the oop address of a java.lang.Class object

            List<String> cmds = List.of("jstack -v");

            String jstackOutput = test.run(theApp.getPid(), cmds, null, null);

            if (jstackOutput == null) {

                // Output could be null due to attach permission issues

                // and if we are skipping this.

                LingeredApp.stopApp(theApp);

                return;

            }

            Map<String, String> tokensMap = new HashMap<>();

            tokensMap.put("(a java.lang.Class for LingeredAppWithLock)",

                          "instance of Oop for java/lang/Class");

            tokensMap.put("Method*=", "Type is Method");

            tokensMap.put("(a java.lang.ref.ReferenceQueue$Lock)",

                          "instance of Oop for java/lang/ref/ReferenceQueue$Lock");

            String[] lines = jstackOutput.split("\\R");

            for (String key: tokensMap.keySet()) {

                cmds = new ArrayList<String>();

                Map<String, List<String>> expStrMap = new HashMap<>();

                String addressString = null;

                for (String line : lines) {

                    if (line.contains(key)) {

                        // Escape the token "Method*=" because the split method uses

                        // a regex, not just a straight String.

                        String escapedKey = key.replace("*","\\*");

                        String[] words = line.split(escapedKey+"|[ ]");

                        for (String word : words) {

                            word = word.replace("<","").replace(">","");

                            if (word.startsWith("0x")) {

                                addressString = word;

                                break;

                            }

                        }

                        if (addressString != null)

                            break;

                      }

                  }

                String cmd = "inspect " + addressString;

                cmds.add(cmd);

                expStrMap.put(cmd, List.of(tokensMap.get(key)));

                test.run(theApp.getPid(), cmds, expStrMap, null);

            }

        } catch (Exception ex) {

            throw new RuntimeException("Test ERROR " + ex, ex);

        } finally {

            LingeredApp.stopApp(theApp);

        }

        System.out.println("Test PASSED");

    }

}