jdk/test/java/lang/instrument/NullGetObjectSizeTest.java
author duke
Sat, 01 Dec 2007 00:00:00 +0000
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/*
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 * Copyright 2003-2004 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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/**
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 * @test
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 * @bug 4920005 4882798
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 * @summary make sure getObjectSize(null) throws NullPointerException.
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 * @author Robert Field as modified from the code of Gabriel Adauto, Wily Technology
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 *
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 * @run build NullGetObjectSizeTest
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 * @run shell MakeJAR.sh basicAgent
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 * @run main/othervm -javaagent:basicAgent.jar NullGetObjectSizeTest NullGetObjectSizeTest
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 */
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public class
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NullGetObjectSizeTest
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    extends ASimpleInstrumentationTestCase
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{
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    /**
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     * Constructor for NullGetObjectSizeTest.
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     * @param name
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     */
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    public NullGetObjectSizeTest(String name) {
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        super(name);
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    }
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    public static void
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    main (String[] args) throws Throwable {
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        ATestCaseScaffold   test = new NullGetObjectSizeTest(args[0]);
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        test.runTest();
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    }
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    protected final void
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    doRunTest() {
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        testNullGetObjectSize();
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    }
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    public void
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    testNullGetObjectSize() {
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        boolean caught = false;
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        // Test that a null argument throws NullPointerException
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        try {
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            fInst.getObjectSize(null);
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        } catch (NullPointerException npe) {
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            caught = true;
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        }
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        assertTrue(caught);
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    }
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}