Java example source code file (AddToReadOnlyPermissionCollection.java)

This example Java source code file (AddToReadOnlyPermissionCollection.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

addtoreadonlypermissoncollection, allofit, allpermission, basicpermissioncollection, evenmorebasic, exception, filepermission, mybasicpermission, net, network, permissioncollection, propertypermission, propertypermissioncollection, security, securityexception, socketpermission, socketpermissioncollection, util

The AddToReadOnlyPermissionCollection.java Java example source code

/*
 * Copyright (c) 1999, 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
 * @author Gary Ellison
 * @bug 4232694
 * @summary PermissionCollection.setReadOnly() does not preclude using add()
 */

import java.security.*;
import java.net.SocketPermission;
import java.io.FilePermission;
import java.util.PropertyPermission;

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

        try {
            if (args.length == 0) {
                tryAllPC();
                tryBasicPC();
                tryFilePC();
                tryPropPC();
                trySockPC();
            } else {
                for (int i=0; i <args.length; i++) {
                    switch (args[i].toLowerCase().charAt(1)) {
                    case 'a':
                        tryAllPC();
                        break;
                    case 'b':
                        tryBasicPC();
                        break;
                    case 'f':
                        tryFilePC();
                        break;
                    case 'p':
                        tryPropPC();
                        break;
                    case 's':
                        trySockPC();
                        break;
                    default:
                        throw new Exception("usage: AddToReadOnlyPermissonCollection [-a -b -f -p -s]");
                    }
                }
            }
        } catch (Exception e) {
            throw e;
        }
        System.out.println("Passed. OKAY");
    }

    static void tryPropPC() throws Exception {
        try {
            PropertyPermission p0 = new PropertyPermission("user.home","read");
            PermissionCollection pc = p0.newPermissionCollection();
            pc.setReadOnly();   // this should lock out future adds
            //
            PropertyPermission p1 = new PropertyPermission("java.home","read");
            pc.add(p1);
            throw new
                Exception("Failed...PropertyPermission added to readonly PropertyPermissionCollection.");

        } catch (SecurityException se) {
            System.out.println("PropertyPermissionCollection passed");
        }
    }

    static void trySockPC() throws Exception {
        try {
            SocketPermission p0= new SocketPermission("example.com","connect");
            PermissionCollection pc = p0.newPermissionCollection();
            pc.setReadOnly();   // this should lock out future adds
            //
            SocketPermission p1= new SocketPermission("example.net","connect");
            pc.add(p1);
            throw new
                Exception("Failed...SocketPermission added to readonly SocketPermissionCollection.");

        } catch (SecurityException se) {
            System.out.println("SocketPermissionCollection passed");
        }

    }

    static void tryFilePC() throws Exception {
        try {
            FilePermission p0 = new FilePermission("/home/foobar","read");
            PermissionCollection pc = p0.newPermissionCollection();
            pc.setReadOnly();   // this should lock out future adds
            //
            FilePermission p1 = new FilePermission("/home/quux","read");
            pc.add(p1);
            throw new
                Exception("Failed...FilePermission added to readonly FilePermissionCollection.");

        } catch (SecurityException se) {
            System.out.println("FilePermissionCollection passed");
        }
    }

    static void tryBasicPC() throws Exception {
        try {
            MyBasicPermission p0 = new MyBasicPermission("BasicPermision");
            PermissionCollection pc = p0.newPermissionCollection();
            pc.setReadOnly();   // this should lock out future adds
            //
            MyBasicPermission p1 = new MyBasicPermission("EvenMoreBasic");
            pc.add(p1);
            throw new
                Exception("Failed...BasicPermission added to readonly BasicPermissionCollection.");

        } catch (SecurityException se) {
            System.out.println("BasicPermissionCollection passed");
        }
    }

    static void tryAllPC() throws Exception {
        try {
            AllPermission p0 = new AllPermission("AllOfIt","read");
            PermissionCollection pc = p0.newPermissionCollection();
            pc.setReadOnly();   // this should lock out future adds
            //
            AllPermission p1 = new AllPermission("SomeOfIt","read");
            pc.add(p1);
            throw new
                Exception("Failed...AllPermission added to readonly AllPermissionCollection.");

        } catch (SecurityException se) {
            System.out.println("AllPermissionCollection passed");
        }
    }

}

class MyBasicPermission extends BasicPermission {
    public MyBasicPermission(String name)  {
        super(name);
    }
}