src/java.base/share/classes/sun/nio/ch/Net.java

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

*** 31,40 ****
--- 31,41 ----
  import java.nio.channels.*;
  import java.util.*;
  import java.security.AccessController;
  import java.security.PrivilegedAction;
  import sun.net.ExtendedOptionsImpl;
+ import sun.security.action.GetPropertyAction;
  
  
  public class Net {
  
      private Net() { }
*** 380,396 ****
              return (value == 0) ? Boolean.FALSE : Boolean.TRUE;
          }
      }
  
      public static boolean isFastTcpLoopbackRequested() {
!         String loopbackProp = java.security.AccessController.doPrivileged(
!             new PrivilegedAction<String>() {
!                 @Override
!                 public String run() {
!                     return System.getProperty("jdk.net.useFastTcpLoopback");
!                 }
!             });
          boolean enable;
          if ("".equals(loopbackProp)) {
              enable = true;
          } else {
              enable = Boolean.parseBoolean(loopbackProp);
--- 381,392 ----
              return (value == 0) ? Boolean.FALSE : Boolean.TRUE;
          }
      }
  
      public static boolean isFastTcpLoopbackRequested() {
!         String loopbackProp =
!                 GetPropertyAction.getProperty("jdk.net.useFastTcpLoopback");
          boolean enable;
          if ("".equals(loopbackProp)) {
              enable = true;
          } else {
              enable = Boolean.parseBoolean(loopbackProp);
*** 645,664 ****
  
      static {
          int availLevel = isExclusiveBindAvailable();
          if (availLevel >= 0) {
              String exclBindProp =
!                 java.security.AccessController.doPrivileged(
!                     new PrivilegedAction<String>() {
!                         @Override
!                         public String run() {
!                             return System.getProperty(
!                                     "sun.net.useExclusiveBind");
!                         }
!                     });
              if (exclBindProp != null) {
!                 exclusiveBind = exclBindProp.length() == 0 ?
                          true : Boolean.parseBoolean(exclBindProp);
              } else if (availLevel == 1) {
                  exclusiveBind = true;
              } else {
                  exclusiveBind = false;
--- 641,653 ----
  
      static {
          int availLevel = isExclusiveBindAvailable();
          if (availLevel >= 0) {
              String exclBindProp =
!                     GetPropertyAction.getProperty("sun.net.useExclusiveBind");
              if (exclBindProp != null) {
!                 exclusiveBind = exclBindProp.isEmpty() ?
                          true : Boolean.parseBoolean(exclBindProp);
              } else if (availLevel == 1) {
                  exclusiveBind = true;
              } else {
                  exclusiveBind = false;