diff -r be617b8c4427 -r fa6bd0992104 jdk/src/share/classes/sun/nio/ch/DatagramChannelImpl.java
--- a/jdk/src/share/classes/sun/nio/ch/DatagramChannelImpl.java	Thu Mar 14 14:45:55 2013 +0100
+++ b/jdk/src/share/classes/sun/nio/ch/DatagramChannelImpl.java	Thu Mar 14 13:46:15 2013 -0700
@@ -94,6 +94,12 @@
     // Multicast support
     private MembershipRegistry registry;
 
+    // set true when socket is bound and SO_REUSEADDRESS is emulated
+    private boolean reuseAddressEmulated;
+
+    // set true/false when socket is already bound and SO_REUSEADDR is emulated
+    private boolean isReuseAddress;
+
     // -- End of fields protected by stateLock
 
 
@@ -222,6 +228,12 @@
                 }
                 return this;
             }
+            if (name == StandardSocketOptions.SO_REUSEADDR &&
+                    Net.useExclusiveBind() && localAddress != null)
+            {
+                reuseAddressEmulated = true;
+                this.isReuseAddress = (Boolean)value;
+            }
 
             // remaining options don't need any special handling
             Net.setSocketOption(fd, Net.UNSPEC, name, value);
@@ -280,6 +292,12 @@
                 }
             }
 
+            if (name == StandardSocketOptions.SO_REUSEADDR &&
+                    reuseAddressEmulated)
+            {
+                return (T)Boolean.valueOf(isReuseAddress);
+            }
+
             // no special handling
             return (T) Net.getSocketOption(fd, Net.UNSPEC, name);
         }