SecurityManager checkSecurityAccess() Method



The java.lang.SecurityManager.checkSecurityAccess(String target) method determines whether the permission with the specified permission target name should be granted or denied. If the requested permission is allowed, this method returns quietly. If denied, a SecurityException is raised. This method creates a SecurityPermission object for the given permission target name and calls checkPermission with it.


Following is the declaration for java.lang.SecurityManager.checkSecurityAccess() method

public void checkSecurityAccess(String target)


  • target -- the target name of the SecurityPermission.

Return Value

This method does not return a value.


  • SecurityException -- if the calling thread does not have permission for the requested access.

  • NullPointerException -- if target is null.

  • IllegalArgumentException -- if target is empty


Our examples require that the permissions for each command is blocked. A new policy file was set that allows only the creating and setting of our Security Manager. The file is in C:/java.policy and contains the following text:

grant {
  permission java.lang.RuntimePermission "setSecurityManager";
  permission java.lang.RuntimePermission "createSecurityManager";
  permission java.lang.RuntimePermission "usePolicy";

The following example shows the usage of lang.SecurityManager.checkSecurityAccess() method.

package com.tutorialspoint;

public class SecurityManagerDemo extends SecurityManager {

   public static void main(String[] args) {

   // set the policy file as the system securuty policy
   System.setProperty("", "file:/C:/java.policy");

   // create a security manager
   SecurityManagerDemo sm = new SecurityManagerDemo();

   // set the system security manager

   // perform the check

   // print a message if we passed the check

Let us compile and run the above program, this will produce the following result:

Exception in thread "main" access denied ( read)