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| 1 | +/* | |
| 2 | + * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package java.lang.management; | |
| 27 | + | |
| 28 | +/** | |
| 29 | + * The permission which the SecurityManager will check when code | |
| 30 | + * that is running with a SecurityManager calls methods defined | |
| 31 | + * in the management interface for the Java platform. | |
| 32 | + * <P> | |
| 33 | + * The following table | |
| 34 | + * provides a summary description of what the permission allows, | |
| 35 | + * and discusses the risks of granting code the permission. | |
| 36 | + * <P> | |
| 37 | + * | |
| 38 | + * <table border=1 cellpadding=5 summary="Table shows permission target name, wh | |
| 39 | +at the permission allows, and associated risks"> | |
| 40 | + * <tr> | |
| 41 | + * <th>Permission Target Name</th> | |
| 42 | + * <th>What the Permission Allows</th> | |
| 43 | + * <th>Risks of Allowing this Permission</th> | |
| 44 | + * </tr> | |
| 45 | + * | |
| 46 | + * <tr> | |
| 47 | + * <td>control</td> | |
| 48 | + * <td>Ability to control the runtime characteristics of the Java virtual | |
| 49 | + * machine, for example, setting the -verbose:gc and -verbose:class flag, | |
| 50 | + * setting the threshold of a memory pool, and enabling and disabling | |
| 51 | + * the thread contention monitoring support. | |
| 52 | + * </td> | |
| 53 | + * <td>This allows an attacker to control the runtime characteristics | |
| 54 | + * of the Java virtual machine and cause the system to misbehave. | |
| 55 | + * </td> | |
| 56 | + * </tr> | |
| 57 | + * <tr> | |
| 58 | + * <td>monitor</td> | |
| 59 | + * <td>Ability to retrieve runtime information about | |
| 60 | + * the Java virtual machine such as thread | |
| 61 | + * stack trace, a list of all loaded class names, and input arguments | |
| 62 | + * to the Java virtual machine.</td> | |
| 63 | + * <td>This allows malicious code to monitor runtime information and | |
| 64 | + * uncover vulnerabilities.</td> | |
| 65 | + * </tr> | |
| 66 | + * | |
| 67 | + * </table> | |
| 68 | + * | |
| 69 | + * <p> | |
| 70 | + * Programmers do not normally create ManagementPermission objects directly. | |
| 71 | + * Instead they are created by the security policy code based on reading | |
| 72 | + * the security policy file. | |
| 73 | + * | |
| 74 | + * @author Mandy Chung | |
| 75 | + * @since 1.5 | |
| 76 | + * | |
| 77 | + * @see java.security.BasicPermission | |
| 78 | + * @see java.security.Permission | |
| 79 | + * @see java.security.Permissions | |
| 80 | + * @see java.security.PermissionCollection | |
| 81 | + * @see java.lang.SecurityManager | |
| 82 | + * | |
| 83 | + */ | |
| 84 | + | |
| 85 | +public final class ManagementPermission extends java.security.BasicPermission { | |
| 86 | + private static final long serialVersionUID = 1897496590799378737L; | |
| 87 | + | |
| 88 | + /** | |
| 89 | + * Constructs a ManagementPermission with the specified name. | |
| 90 | + * | |
| 91 | + * @param name Permission name. Must be either "monitor" or "control". | |
| 92 | + * | |
| 93 | + * @throws NullPointerException if <code>name</code> is <code>null</code>. | |
| 94 | + * @throws IllegalArgumentException if <code>name</code> is empty or invalid. | |
| 95 | + */ | |
| 96 | + public ManagementPermission(String name) { | |
| 97 | + super(name); | |
| 98 | + if (!name.equals("control") && !name.equals("monitor")) { | |
| 99 | + throw new IllegalArgumentException("name: " + name); | |
| 100 | + } | |
| 101 | + } | |
| 102 | + | |
| 103 | + /** | |
| 104 | + * Constructs a new ManagementPermission object. | |
| 105 | + * | |
| 106 | + * @param name Permission name. Must be either "monitor" or "control". | |
| 107 | + * @param actions Must be either null or the empty string. | |
| 108 | + * | |
| 109 | + * @throws NullPointerException if <code>name</code> is <code>null</code>. | |
| 110 | + * @throws IllegalArgumentException if <code>name</code> is empty or | |
| 111 | + * if arguments are invalid. | |
| 112 | + */ | |
| 113 | + public ManagementPermission(String name, String actions) | |
| 114 | + throws IllegalArgumentException { | |
| 115 | + super(name); | |
| 116 | + if (!name.equals("control") && !name.equals("monitor")) { | |
| 117 | + throw new IllegalArgumentException("name: " + name); | |
| 118 | + } | |
| 119 | + if (actions != null && actions.length() > 0) { | |
| 120 | + throw new IllegalArgumentException("actions: " + actions); | |
| 121 | + } | |
| 122 | + } | |
| 123 | +} | |