src/java.base/windows/classes/sun/nio/ch/SinkChannelImpl.java

@@ -28,10 +28,11 @@
 
 package sun.nio.ch;
 
 import java.io.IOException;
 import java.io.FileDescriptor;
+import java.net.StandardSocketOptions;
 import java.nio.ByteBuffer;
 import java.nio.channels.*;
 import java.nio.channels.spi.*;
 
 

@@ -52,10 +53,17 @@
 
     public int getFDVal() {
         return ((SocketChannelImpl)sc).getFDVal();
     }
 
+    void setNoDelay() throws IOException {
+        if (sc instanceof InetSocketChannelImpl) {
+            InetSocketChannelImpl isc = (InetSocketChannelImpl)sc;
+            isc.setOption(StandardSocketOptions.TCP_NODELAY, true);
+        }
+    }
+
     SinkChannelImpl(SelectorProvider sp, SocketChannel sc) {
         super(sp);
         this.sc = sc;
     }