diff -r 3880a05ff32e -r 471ae95609d5 jdk/src/windows/native/sun/nio/ch/SocketChannelImpl.c
--- a/jdk/src/windows/native/sun/nio/ch/SocketChannelImpl.c	Wed Jul 21 13:52:38 2010 +0100
+++ b/jdk/src/windows/native/sun/nio/ch/SocketChannelImpl.c	Wed Jul 21 18:08:46 2010 +0100
@@ -139,3 +139,16 @@
 
     return 0;
 }
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_SocketChannelImpl_sendOutOfBandData(JNIEnv* env, jclass this,
+                                                    jobject fdo, jbyte b)
+{
+    int n = send(fdval(env, fdo), (const char*)&b, 1, MSG_OOB);
+    if (n == SOCKET_ERROR) {
+        handleSocketError(env, WSAGetLastError());
+        return IOS_THROWN;
+    } else {
+        return n;
+    }
+}