openjdk源码
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/*
* Copyright (c) 2000, 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
* @bug 4291610
* @summary BasicPermission.newPermissionCollection collection does not
* enforce homogeneity
*/
import java.security.BasicPermission;
public class Homogeneity {
public static void main(String[] args) {
java.lang.RuntimePermission rp = new java.lang.RuntimePermission
("*");
java.lang.RuntimePermission rp2 = new java.lang.RuntimePermission
("exitVM");
java.net.NetPermission np = new java.net.NetPermission
("setDefaultAuthenticator");
// should be able to add identical BasicPermission subclasses to the
// same collection
java.security.PermissionCollection perms = rp.newPermissionCollection();
try {
perms.add(rp);
perms.add(rp2);
} catch (IllegalArgumentException iae) {
throw new SecurityException("GOOD ADD TEST FAILED");
}
// make sure you can't add different BasicPermission subclasses
// to the same collection
try {
// this should fail
perms.add(np);
throw new SecurityException("BAD ADD TEST FAILED");
} catch (IllegalArgumentException iae) {
// good
}
// make sure a BasicPermissionCollection doesn't imply
// random BasicPermission subclasses
if (perms.implies(np)) {
throw new SecurityException("IMPLIES TEST FAILED");
}
}
}