Quelle Invalid.java Sprache: JAVA

/*
* Copyright (c) 2016, 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 8167646
* @summary Better invalid FilePermission
* @library /test/lib
* @build jdk.test.lib.Asserts
* @run main Invalid
*/

import jdk.test.lib.Asserts;

import java.io.FilePermission;

public class Invalid {

    public static void main(String args[]) throws Exception {

        // Allmighty
        FilePermission af = new FilePermission("<>", "read");

        // Normal
        FilePermission fp = new FilePermission("a", "read");

        // Invalid
        FilePermission fp1 = new FilePermission("a\000", "read");
        FilePermission fp2 = new FilePermission("a\000", "read");
        FilePermission fp3 = new FilePermission("b\000", "read");

        // Invalid equals to itself
        Asserts.assertEQ(fp1, fp1);

        // and not equals to anything else, including other invalid ones
        Asserts.assertNE(fp, fp1);
        Asserts.assertNE(fp1, fp);
        Asserts.assertNE(fp1, fp2);
        Asserts.assertNE(fp1, fp3);

        // Invalid implies itself
        Asserts.assertTrue(fp1.implies(fp1));

        // <<ALL FILES>> implies invalid
        Asserts.assertTrue(af.implies(fp1));

        // and not implies or implied by anything else, including other
        // invalid ones
        Asserts.assertFalse(fp.implies(fp1));
        Asserts.assertFalse(fp1.implies(fp));
        Asserts.assertFalse(fp1.implies(fp2));
        Asserts.assertFalse(fp1.implies(fp3));
    }
}

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