org.jgroups.auth.sasl.SecurityActions Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.auth.sasl;

import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Properties;

/**
 * SecurityActions for the org.jgroups.auth.sasl package.
 *
 * Do not move. Do not change class and method visibility to avoid being called from other
 * {@link java.security.CodeSource}s, thus granting privilege escalation to external code.
 *
 * @author Tristan Tarrant
 * @since 3.6
 */
final class SecurityActions {
   private static  T doPrivileged(PrivilegedAction action) {
      if (System.getSecurityManager() != null) {
         return AccessController.doPrivileged(action);
      } else {
         return action.run();
      }
   }

   static String getSystemProperty(final String name) {
      return doPrivileged(new PrivilegedAction() {
         @Override
         public String run() {
            return System.getProperty(name);
         }
      });
   }

   public static Properties getSystemProperties() {
      return doPrivileged(new PrivilegedAction() {
         @Override
         public Properties run() {
            return System.getProperties();
         }
      });
   }
}