GetAllLoadedClassesTest.java revision 12973:2e63fa2efdb1 
1/*
2 * Copyright (c) 2003, 2015, 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/**
25 * @test
26 * @bug 4882798
27 * @summary simple tests for getAllLoadedClasses (is Object there? does a newly loaded class show up?)
28 * @author Gabriel Adauto, Wily Technology
29 *
30 * @run build GetAllLoadedClassesTest DummyClass
31 * @run shell MakeJAR.sh basicAgent
32 * @run main/othervm -javaagent:basicAgent.jar GetAllLoadedClassesTest GetAllLoadedClassesTest
33 */
34
35import  java.net.*;
36
37public class
38GetAllLoadedClassesTest
39    extends ASimpleInstrumentationTestCase
40{
41
42    /**
43     * Constructor for GetAllLoadedClassesTest.
44     * @param name
45     */
46    public GetAllLoadedClassesTest(String name)
47    {
48        super(name);
49    }
50
51    public static void
52    main (String[] args)
53        throws Throwable {
54        ATestCaseScaffold   test = new GetAllLoadedClassesTest(args[0]);
55        test.runTest();
56    }
57
58    protected final void
59    doRunTest()
60        throws Throwable {
61        testGetAllLoadedClasses();
62    }
63
64    public void
65    testGetAllLoadedClasses()
66        throws  Throwable
67    {
68        ClassLoader loader = getClass().getClassLoader();
69
70        Class[] classes = fInst.getAllLoadedClasses();
71        assertNotNull(classes);
72        assertClassArrayDoesNotContainClassByName(classes, "DummyClass");
73        assertClassArrayContainsClass(classes, Object.class);
74
75        Class dummy = loader.loadClass("DummyClass");
76        assertEquals("DummyClass", dummy.getName());
77
78        // double check that we can make an instance (just to prove the loader is kosher)
79        Object testInstance = dummy.newInstance();
80
81        Class[] classes2 = fInst.getAllLoadedClasses();
82        assertNotNull(classes2);
83        assertClassArrayContainsClass(classes2, dummy);
84    }
85
86}
87