java.rmi
Class RMISecurityManager

java.lang.Object
  |
  +--java.lang.SecurityManager
        |
        +--java.rmi.RMISecurityManager

public class RMISecurityManager

extends SecurityManager

RMISecurityManager provides an example security manager for use by RMI applications that use downloaded code. RMI's class loader will not download any classes from remote locations if no security manager has been set. RMISecurityManager does not apply to applets, which run under the protection of their browser's security manager.

To use the RMISecurityManager in your application , add the following statement to your code (it needs to be executed before RMI can download code from remote hosts, so it most likely needs to appear in the main of your application):

 System.setSecurityManager(new RMISecurityManager());
 

The RMISecurityManager overrides several of java.lang.SecurityManager's methods that deal with thread or package access.

Since:

JDK1.1

Fields inherited from class java.lang.SecurityManager

inCheck

Constructor Summary

RMISecurityManager()
Constructs a new RMISecurityManager.

Method Summary

void	checkPackageAccess(String pkgname) Throws a SecurityException if the calling thread is not allowed to access the package specified by the argument.

Methods inherited from class java.lang.SecurityManager

checkAccept, checkAccess, checkAccess, checkAwtEventQueueAccess, checkConnect, checkConnect, checkCreateClassLoader, checkDelete, checkExec, checkExit, checkLink, checkListen, checkMemberAccess, checkMulticast, checkMulticast, checkPackageDefinition, checkPermission, checkPermission, checkPrintJobAccess, checkPropertiesAccess, checkPropertyAccess, checkRead, checkRead, checkRead, checkSecurityAccess, checkSetFactory, checkSystemClipboardAccess, checkTopLevelWindow, checkWrite, checkWrite, classDepth, classLoaderDepth, currentClassLoader, currentLoadedClass, getClassContext, getInCheck, getSecurityContext, getThreadGroup, inClass, inClassLoader

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RMISecurityManager

public RMISecurityManager()

Constructs a new RMISecurityManager.

Since:

JDK1.1

Method Detail

checkPackageAccess

public void checkPackageAccess(String pkgname)

Throws a SecurityException if the calling thread is not allowed to access the package specified by the argument.

This method is used by the loadClass method of class loaders.

Parameters:

pkg - the package name.

Throws:

SecurityException - if the caller does not have permission to access the specified package.

Overrides:

checkPackageAccess in class SecurityManager

See Also:

ClassLoader.loadClass(java.lang.String, boolean)