ParserInfiniteLoopTest.java

/*
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 * 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.
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 */

/*
 * @test
 * @bug 5042364
 * @summary Malformed MLet text file causes infinite loop in parser.
 * The MLetParser goes into an infinite loop when a tag is not
 * terminated with the corresponding '>' and an opening '<' for
 * the subsequent tag is encountered.
 * @author Luis-Miguel Alventosa
 *
 * @run clean ParserInfiniteLoopTest
 * @run build ParserInfiniteLoopTest
 * @run main/othervm ParserInfiniteLoopTest mlet1.html
 * @run main/othervm ParserInfiniteLoopTest mlet2.html
 * @run main/othervm ParserInfiniteLoopTest mlet3.html
 */

import java.io.File;
import java.io.IOException;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.ObjectName;
import javax.management.ServiceNotFoundException;
import javax.management.loading.MLet;

public class ParserInfiniteLoopTest {

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

        boolean error = false;

        // Instantiate the MBean server
        //
        System.out.println("Create the MBean server");
        MBeanServer mbs = MBeanServerFactory.createMBeanServer();

        // Instantiate an MLet
        //
        System.out.println("Create the MLet");
        MLet mlet = new MLet();

        // Register the MLet MBean with the MBeanServer
        //
        System.out.println("Register the MLet MBean");
        ObjectName mletObjectName = new ObjectName("Test:type=MLet");
        mbs.registerMBean(mlet, mletObjectName);

        // Call getMBeansFromURL
        //
        System.out.println("Call mlet.getMBeansFromURL(<url>)");
        String testSrc = System.getProperty("test.src");
        System.out.println("test.src = " + testSrc);
        String urlCodebase;
        if (testSrc.startsWith("/")) {
            urlCodebase =
                "file:" + testSrc.replace(File.separatorChar, '/') + "/";
        } else {
            urlCodebase =
                "file:/" + testSrc.replace(File.separatorChar, '/') + "/";
        }
        String mletFile = urlCodebase + args[0];
        System.out.println("MLet File = " + mletFile);
        try {
            mlet.getMBeansFromURL(mletFile);
            System.out.println(
                "TEST FAILED: Expected ServiceNotFoundException not thrown");
            error = true;
        } catch (ServiceNotFoundException e) {
            if (e.getCause() == null) {
                System.out.println("TEST FAILED: Got unexpected null cause " +
                    "in ServiceNotFoundException");
                error = true;
            } else if (!(e.getCause() instanceof IOException)) {
                System.out.println("TEST FAILED: Got unexpected non-null " +
                    "cause in ServiceNotFoundException");
                error = true;
            } else {
                System.out.println("TEST PASSED: Got expected non-null " +
                    "cause in ServiceNotFoundException");
                error = false;
            }
            e.printStackTrace(System.out);
        }

        // Unregister the MLet MBean
        //
        System.out.println("Unregister the MLet MBean");
        mbs.unregisterMBean(mletObjectName);

        // Release MBean server
        //
        System.out.println("Release the MBean server");
        MBeanServerFactory.releaseMBeanServer(mbs);

        // End Test
        //
        System.out.println("Bye! Bye!");
        if (error) System.exit(1);
    }
}