test/jdk/java/lang/instrument/NullTransformerAddTest.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
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 * 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 4882798
 * @summary make sure addTransformer(null) throws what it should
 * @author Gabriel Adauto, Wily Technology
 *
 * @run build NullTransformerAddTest
 * @run shell MakeJAR.sh redefineAgent
 * @run main/othervm -javaagent:redefineAgent.jar NullTransformerAddTest NullTransformerAddTest
 */
public class
NullTransformerAddTest
    extends ATransformerManagementTestCase
{

    /**
     * Constructor for NullTransformerAddTest.
     * @param name
     */
    public NullTransformerAddTest(String name)
    {
        super(name);
    }

    public static void
    main (String[] args)
        throws Throwable {
        ATestCaseScaffold   test = new NullTransformerAddTest(args[0]);
        test.runTest();
    }

    protected final void
    doRunTest()
        throws Throwable {
        testNullTransformerAdd();
    }


    /**
     * Add null transformers to the the manager and check it
     */
    public void
    testNullTransformerAdd()
    {
        boolean caughtIt = false;
        try
            {
            addTransformerToManager(fInst, null);
            }
        catch (NullPointerException npe)
            {
            caughtIt = true;
            }
        assertTrue(caughtIt);
    }

}