src/java.base/windows/classes/java/net/DefaultDatagramSocketImplFactory.java

rev 14210 : 8154231: Simplify access to System properties from JDK code
Reviewed-by: rriggs

*** 22,33 ****
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  package java.net;
  
! import java.security.AccessController;
! import java.security.PrivilegedAction;
  import sun.security.action.GetPropertyAction;
  
  /**
   * This class defines a factory for creating DatagramSocketImpls. It defaults
   * to creating plain DatagramSocketImpls, but may create other DatagramSocketImpls
--- 22,32 ----
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  package java.net;
  
! import java.util.Properties;
  import sun.security.action.GetPropertyAction;
  
  /**
   * This class defines a factory for creating DatagramSocketImpls. It defaults
   * to creating plain DatagramSocketImpls, but may create other DatagramSocketImpls
*** 55,79 ****
      private static final boolean exclusiveBind;
  
      static {
          Class<?> prefixImplClassLocal = null;
  
          preferIPv4Stack = Boolean.parseBoolean(
!                 AccessController.doPrivileged(
!                         new GetPropertyAction("java.net.preferIPv4Stack")));
  
!         String exclBindProp = AccessController.doPrivileged(
!                 new GetPropertyAction("sun.net.useExclusiveBind", ""));
          exclusiveBind = (exclBindProp.isEmpty())
                  ? true
                  : Boolean.parseBoolean(exclBindProp);
  
          // impl.prefix
          String prefix = null;
          try {
!             prefix = AccessController.doPrivileged(
!                 new GetPropertyAction("impl.prefix", null));
              if (prefix != null)
                  prefixImplClassLocal = Class.forName("java.net."+prefix+"DatagramSocketImpl");
          } catch (Exception e) {
              System.err.println("Can't find class: java.net." +
                                  prefix +
--- 54,76 ----
      private static final boolean exclusiveBind;
  
      static {
          Class<?> prefixImplClassLocal = null;
  
+         Properties props = GetPropertyAction.getProperties();
          preferIPv4Stack = Boolean.parseBoolean(
!                 props.getProperty("java.net.preferIPv4Stack"));
  
!         String exclBindProp = props.getProperty("sun.net.useExclusiveBind", "");
          exclusiveBind = (exclBindProp.isEmpty())
                  ? true
                  : Boolean.parseBoolean(exclBindProp);
  
          // impl.prefix
          String prefix = null;
          try {
!             prefix = props.getProperty("impl.prefix");
              if (prefix != null)
                  prefixImplClassLocal = Class.forName("java.net."+prefix+"DatagramSocketImpl");
          } catch (Exception e) {
              System.err.println("Can't find class: java.net." +
                                  prefix +