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Java example source code file (ComparatorExceptionTest.java)

This example Java source code file (ComparatorExceptionTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

comparatorexceptiontest, exception, failed, illegalargumentexception, management, mbeanserver, objectname, sortedmap, sortedset, string, testimpl, testmxbean, throwable, treemap, util

The ComparatorExceptionTest.java Java example source code

/*
 * Copyright (c) 2007, 2008, 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.
 */

/*
 * @test
 * @bug 6601652
 * @summary Test exception when SortedMap or SortedSet has non-null Comparator
 * @author Eamonn McManus
 */

import java.util.SortedMap;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.ObjectName;

public class ComparatorExceptionTest {
    public static interface TestMXBean {
        public SortedSet<String> getSortedSet();
        public SortedMap<String, String> getSortedMap();
    }

    public static class TestImpl implements TestMXBean {
        public SortedSet<String> getSortedSet() {
            return new TreeSet<String>(String.CASE_INSENSITIVE_ORDER);
        }

        public SortedMap<String, String> getSortedMap() {
            return new TreeMap<String, String>(String.CASE_INSENSITIVE_ORDER);
        }
    }

    private static String failure;

    private static void fail(String why) {
        failure = "FAILED: " + why;
        System.out.println(failure);
    }

    public static void main(String[] args) throws Exception {
        MBeanServer mbs = MBeanServerFactory.newMBeanServer();
        ObjectName name = new ObjectName("a:b=c");
        mbs.registerMBean(new TestImpl(), name);

        for (String attr : new String[] {"SortedSet", "SortedMap"}) {
            try {
                Object value = mbs.getAttribute(name, attr);
                fail("get " + attr + " did not throw exception");
            } catch (Exception e) {
                Throwable t = e;
                while (!(t instanceof IllegalArgumentException)) {
                    if (t == null)
                        break;
                    t = t.getCause();
                }
                if (t != null)
                    System.out.println("Correct exception for " + attr);
                else {
                    fail("get " + attr + " got wrong exception");
                    e.printStackTrace(System.out);
                }
            }
        }

        if (failure != null)
            throw new Exception(failure);
    }
}

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