51 lines
2.0 KiB
Java
51 lines
2.0 KiB
Java
/*
|
|
* Copyright (c) 2022, 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.
|
|
*/
|
|
|
|
package gc;
|
|
|
|
/*
|
|
* @test TestFillerObjectInstantiation
|
|
* @summary Test that GC filler objects can not be instantiated by Java programs.
|
|
* @library /test/lib
|
|
* @run driver gc.TestFillerObjectInstantiation
|
|
*/
|
|
|
|
public class TestFillerObjectInstantiation {
|
|
|
|
private static void testInstantiationFails(String classname) throws Exception {
|
|
System.out.println("trying to instantiate " + classname);
|
|
try {
|
|
Object o = ClassLoader.getSystemClassLoader().loadClass(classname).newInstance();
|
|
throw new Error("Have been able to instantiate " + classname);
|
|
} catch (IllegalAccessException | ClassNotFoundException e) {
|
|
System.out.println("Could not instantiate " + classname + " as expected");
|
|
System.out.println("Message: " + e.toString());
|
|
}
|
|
}
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
testInstantiationFails("jdk.internal.vm.FillerObject");
|
|
testInstantiationFails("jdk.internal.vm.FillerElement");
|
|
}
|
|
}
|