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package java.lang.management;


The permission which the SecurityManager will check when code
that is running with a SecurityManager calls methods defined
in the management interface for the Java platform.


The following table
provides a summary description of what the permission allows,
and discusses the risks of granting code the permission.


Table shows permission target name, what the permission allows, and associated risks



Permission Target Name
What the Permission Allows
Risks of Allowing this Permission






  control
  Ability to control the runtime characteristics of the Java virtual
      machine, for example, enabling and disabling the verbose output for
      the class loading or memory system, setting the threshold of a memory
      pool, and enabling and disabling the thread contention monitoring
      support. Some actions controlled by this permission can disclose
      information about the running application, like the -verbose:class
      flag.
  
  This allows an attacker to control the runtime characteristics
      of the Java virtual machine and cause the system to misbehave. An
      attacker can also access some information related to the running
      application.
  




  monitor
  Ability to retrieve runtime information about
      the Java virtual machine such as thread
      stack trace, a list of all loaded class names, and input arguments
      to the Java virtual machine.
  This allows malicious code to monitor runtime information and
      uncover vulnerabilities.







Programmers do not normally create ManagementPermission objects directly.
Instead they are created by the security policy code based on reading
the security policy file.

Author: Mandy Chung
See Also:
Since:  1.5
/**
 * The permission which the SecurityManager will check when code
 * that is running with a SecurityManager calls methods defined
 * in the management interface for the Java platform.
 * <P>
 * The following table
 * provides a summary description of what the permission allows,
 * and discusses the risks of granting code the permission.
 *
 * <table class="striped">
 * <caption style="display:none">Table shows permission target name, what the permission allows, and associated risks</caption>
 * <thead>
 * <tr>
 * <th scope="col">Permission Target Name</th>
 * <th scope="col">What the Permission Allows</th>
 * <th scope="col">Risks of Allowing this Permission</th>
 * </tr>
 * </thead>
 * <tbody style="text=align:left">
 *
 * <tr>
 *   <th scope="row">control</th>
 *   <td>Ability to control the runtime characteristics of the Java virtual
 *       machine, for example, enabling and disabling the verbose output for
 *       the class loading or memory system, setting the threshold of a memory
 *       pool, and enabling and disabling the thread contention monitoring
 *       support. Some actions controlled by this permission can disclose
 *       information about the running application, like the -verbose:class
 *       flag.
 *   </td>
 *   <td>This allows an attacker to control the runtime characteristics
 *       of the Java virtual machine and cause the system to misbehave. An
 *       attacker can also access some information related to the running
 *       application.
 *   </td>
 * </tr>
 * <tr>
 *   <th scope="row">monitor</th>
 *   <td>Ability to retrieve runtime information about
 *       the Java virtual machine such as thread
 *       stack trace, a list of all loaded class names, and input arguments
 *       to the Java virtual machine.</td>
 *   <td>This allows malicious code to monitor runtime information and
 *       uncover vulnerabilities.</td>
 * </tr>
 *
 * </tbody>
 * </table>
 *
 * <p>
 * Programmers do not normally create ManagementPermission objects directly.
 * Instead they are created by the security policy code based on reading
 * the security policy file.
 *
 * @author  Mandy Chung
 * @since   1.5
 *
 * @see java.security.BasicPermission
 * @see java.security.Permission
 * @see java.security.Permissions
 * @see java.security.PermissionCollection
 * @see java.lang.SecurityManager
 *
 */

public final class ManagementPermission extends java.security.BasicPermission {
    private static final long serialVersionUID = 1897496590799378737L;

    
Constructs a ManagementPermission with the specified name.

Params:
  • name – Permission name. Must be either "monitor" or "control".
Throws:
/**
     * Constructs a ManagementPermission with the specified name.
     *
     * @param name Permission name. Must be either "monitor" or "control".
     *
     * @throws NullPointerException if <code>name</code> is <code>null</code>.
     * @throws IllegalArgumentException if <code>name</code> is empty or invalid.
     */
    public ManagementPermission(String name) {
        super(name);
        if (!name.equals("control") && !name.equals("monitor")) {
            throw new IllegalArgumentException("name: " + name);
        }
    }

    
Constructs a new ManagementPermission object.

Params:
  • name – Permission name. Must be either "monitor" or "control".
  • actions – Must be either null or the empty string.
Throws:
/**
     * Constructs a new ManagementPermission object.
     *
     * @param name Permission name. Must be either "monitor" or "control".
     * @param actions Must be either null or the empty string.
     *
     * @throws NullPointerException if <code>name</code> is <code>null</code>.
     * @throws IllegalArgumentException if <code>name</code> is empty or
     * if arguments are invalid.
     */
    public ManagementPermission(String name, String actions)
        throws IllegalArgumentException {
        super(name);
        if (!name.equals("control") && !name.equals("monitor")) {
            throw new IllegalArgumentException("name: " + name);
        }
        if (actions != null && actions.length() > 0) {
            throw new IllegalArgumentException("actions: " + actions);
        }
    }
}