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Java SecurityManager checkPropertiesAccess() method with example

SecurityManager Class checkPropertiesAccess() method: Here, we are going to learn about the checkPropertiesAccess() method of SecurityManager Class with its syntax and example.
Submitted by Preeti Jain, on December 17, 2019

SecurityManager Class checkPropertiesAccess() method

  • checkPropertiesAccess() method is available in java.lang package.
  • checkPropertiesAccess() method invokes checkPermission with the PropertyPermission("*", "read, write") permission to give access to properties.
  • checkPropertiesAccess() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
  • checkPropertiesAccess() method may throw an exception at the time of accessing properties.
    SecurityException – This exception may throw when the calling thread does not have the right to access or update system properties.

Syntax:

    public void checkPropertiesAccess();

Parameter(s):

  • It does not accept any parameter.

Return value:

The return type of this method is void, it returns nothing.

Example:

// Java program to demonstrate the example // of void checkPropertiesAccess () // method of SecurityManager public class CheckPropertiesAccess extends SecurityManager { public static void main(String[] args) { // By using setProperty() method is to set the policy property // with security manager System.setProperty("java.security.policy", "file:/C:/java.policy"); // Instantiating a CheckPropertiesAccess object CheckPropertiesAccess cpa = new CheckPropertiesAccess(); // By using setSecurityManager() method is to set the // security manager System.setSecurityManager(cpa); // By using checkPropertiesAccess() method is to check // accessing of system properties cpa.checkPropertiesAccess(); // Display the message System.out.println("Not Restricted.."); } }

Output

Exception in thread "main" java.security.AccessControlException: access denied ("java.util.PropertyPermission" "*" "read,write")
	at java.base/java.security.AccessControlContext.checkPermission(AccessControlContext.java:472)
	at java.base/java.security.AccessController.checkPermission(AccessController.java:897)
	at java.base/java.lang.SecurityManager.checkPermission(SecurityManager.java:322)
	at java.base/java.lang.SecurityManager.checkPropertiesAccess(SecurityManager.java:1034)
	at CheckPropertiesAccess.main(CheckPropertiesAccess.java:20)
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