test/hotspot/jtreg/vmTestbase/nsk/jdi/ReferenceType/classLoader/classloader001a.java

/*
 * Copyright (c) 2001, 2018, 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.
 */

package nsk.jdi.ReferenceType.classLoader;

import nsk.share.*;
import nsk.share.jpda.*;
import nsk.share.jdi.*;

import java.io.*;

/**
 * This class is used as debuggee application for the classloader001 JDI test.
 */

public class classloader001a {

    //----------------------------------------------------- templete section

    static final int PASSED = 0;
    static final int FAILED = 2;
    static final int PASS_BASE = 95;

    //--------------------------------------------------   log procedures

    static boolean verbMode = false;

    private static void log1(String message) {
        if (verbMode)
            System.out.println("**>  debuggee: " + message);
    }

    private static void logErr(String message) {
        if (verbMode)
            System.out.println("!!**>  debuggee: " + message);
    }

    //====================================================== test program
    //------------------------------------------------------ common section
    static int instruction = 1;
    static int end         = 0;
                                   //    static int quit        = 0;
                                   //    static int continue    = 2;
    static int maxInstr    = 2;    // 1;

    static int lineForComm = 2;

    private static void methodForCommunication() {
        int i1 = instruction;
        int i2 = i1;
        int i3 = i2;
    }
    //----------------------------------------------------   main method

    private final static String packagePrefix = "nsk.jdi.ReferenceType.classLoader.";
    private final static String testedClassName0 = packagePrefix + "classloader001b";
    private final static String testedClassName1 = packagePrefix + "classloader001c";

    public static void main (String argv[]) {

        for (int i=0; i<argv.length; i++) {
            if ( argv[i].equals("-vbs") || argv[i].equals("-verbose") ) {
                verbMode = true;
                break;
            }
        }
        log1("debuggee started!");

        int exitCode = PASSED;

        label0:
            for (int i = 0; ; i++) {

                if (instruction > maxInstr) {
                    logErr("ERROR: unexpected instruction: " + instruction);
                    exitCode = FAILED;
                    break ;
                }

                switch (i) {

    //------------------------------------------------------  section tested

                    case 0:
                                ArgumentHandler argHandler = new ArgumentHandler(argv);
                                String checkedClassDir = (argHandler.getArguments())[0] + File.separator + "loadclass";

                                // Load class by custom class loader
                                ClassUnloader classUnloader = new ClassUnloader();
                                try {
                                    classUnloader.loadClass(testedClassName0, checkedClassDir);
                                    Class loadedClass = classUnloader.getLoadedClass();
                                    if (loadedClass == null) {
                                        throw new Failure("classUnloader.getLoadedClass() returned null");
                                    }
                                    if (loadedClass.getClassLoader() == null) {
                                        throw new Failure("loadedClass.getClassLoader() returned null");
                                    }
                                    log1("checked class : " + loadedClass.toString() + " loaded by custom class loader");
                                } catch ( Exception e ) {  // ClassNotFoundException
                                    logErr("Unexpected exception thrown while trying to load " + testedClassName0 + " : " + e);
                                    exitCode = FAILED;
                                }
                                methodForCommunication();
                                break ;

                    case 1:

                                Class testClass = null;
                                // Load class by bootstrap class loader
                                try {
                                    testClass = Class.forName(testedClassName1, true, null);
                                    if (testClass.getClassLoader() != null) {
                                        logErr(testedClassName1 + " is not loaded by bootstrap class loader");
                                        exitCode = FAILED;
                                    }
                                } catch (Exception e) {
                                    logErr("Unexpected exception while trying to load " + testedClassName1 + " : " + e);
                                    exitCode = FAILED;
                                }
                                methodForCommunication();

    //-------------------------------------------------    standard end section

                    default:
                                instruction = end;
                                methodForCommunication();
                                break label0;
                }
            }

        System.exit(exitCode + PASS_BASE);
    }
}