test/applicationMainMethod/ReferNonExistentClassTest.java - master - githubmirror/jtreg

test/applicationMainMethod/ReferNonExistentClassTest.java

53 строки2 KB

Jaikiran Pai

7904183: Some "main" action jtreg tests fail to launch after CODETOOLS-7904141

13 май 2026, 15:20

13 май 2026, 15:20207dfa2

/*
 * Copyright (c) 2026, 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
 * @summary verify that an unused reference to a class that's unavailable at runtime,
 *          doesn't cause a failure to launch the test
 * @build ReferNonExistentClassTest
 * @clean NotPresentAtRuntime
 * @run main/othervm ReferNonExistentClassTest
 * @run main ReferNonExistentClassTest
 */
public class ReferNonExistentClassTest {

    public static void main(final String[] args) {
        try {
            printMessage(null);
        } catch (NoClassDefFoundError e) {
            // This could happen if the VM loads classes eagerly,
            // but is not bad behavior.
            System.out.println("Caught NoClassDefFoundError: " + e);
        }
        System.out.println("Done");
    }

    private static void printMessage(final NotPresentAtRuntime ignored) {
        System.out.println("Good morning");
    }
}

// Empty class, never instantiated. Deleted after compiling.
class NotPresentAtRuntime {
}