--- /dev/null	2018-06-17 23:18:20.806999507 +0800
+++ new/test/jdk/jfr/event/io/TestSocketChannelEvents.java	2019-01-29 11:04:00.094955924 +0800
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.jfr.event.io;
+
+import static jdk.testlibrary.Asserts.assertEquals;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.testlibrary.jfr.Events;
+import jdk.testlibrary.thread.TestThread;
+import jdk.testlibrary.thread.XRun;
+import jdk.testlibrary.jfr.IOEvent;
+import jdk.testlibrary.jfr.IOHelper;
+
+/*
+ * @test
+ * @key jfr
+ * @library /lib/testlibrary
+ * @run main/othervm jdk.jfr.event.io.TestSocketChannelEvents
+ */
+public class TestSocketChannelEvents {
+    private static final int bufSizeA = 10;
+    private static final int bufSizeB = 20;
+
+    private List<IOEvent> expectedEvents = new ArrayList<>();
+    private synchronized void addExpectedEvent(IOEvent event) {
+        expectedEvents.add(event);
+    }
+
+    public static void main(String[] args) throws Throwable {
+        new TestSocketChannelEvents().test();
+    }
+
+    public void test() throws Throwable {
+        Recording recording = new Recording();
+
+        try (ServerSocketChannel ss = ServerSocketChannel.open()) {
+            recording.enable(IOEvent.EVENT_SOCKET_READ).withThreshold(Duration.ofMillis(0));
+            recording.enable(IOEvent.EVENT_SOCKET_WRITE).withThreshold(Duration.ofMillis(0));
+            recording.start();
+
+            ss.socket().setReuseAddress(true);
+            ss.socket().bind(null);
+
+            TestThread readerThread = new TestThread(new XRun() {
+                @Override
+                public void xrun() throws IOException {
+                    ByteBuffer bufA = ByteBuffer.allocate(bufSizeA);
+                    ByteBuffer bufB = ByteBuffer.allocate(bufSizeB);
+                    try (SocketChannel sc = ss.accept()) {
+                        int readSize = sc.read(bufA);
+                        assertEquals(readSize, bufSizeA, "Wrong readSize bufA");
+                        addExpectedEvent(IOEvent.createSocketReadEvent(bufSizeA, sc.socket()));
+
+                        bufA.clear();
+                        bufA.limit(1);
+                        readSize = (int)sc.read(new ByteBuffer[] { bufA, bufB });
+                        assertEquals(readSize, 1 + bufSizeB, "Wrong readSize 1+bufB");
+                        addExpectedEvent(IOEvent.createSocketReadEvent(readSize, sc.socket()));
+
+                        // We try to read, but client have closed. Should get EOF.
+                        bufA.clear();
+                        bufA.limit(1);
+                        readSize = sc.read(bufA);
+                        assertEquals(readSize, -1, "Wrong readSize at EOF");
+                        addExpectedEvent(IOEvent.createSocketReadEvent(-1, sc.socket()));
+                    }
+                }
+            });
+            readerThread.start();
+
+            try (SocketChannel sc = SocketChannel.open(ss.socket().getLocalSocketAddress())) {
+                ByteBuffer bufA = ByteBuffer.allocateDirect(bufSizeA);
+                ByteBuffer bufB = ByteBuffer.allocateDirect(bufSizeB);
+                for (int i = 0; i < bufSizeA; ++i) {
+                    bufA.put((byte)('a' + (i % 20)));
+                }
+                for (int i = 0; i < bufSizeB; ++i) {
+                    bufB.put((byte)('A' + (i % 20)));
+                }
+                bufA.flip();
+                bufB.flip();
+
+                sc.write(bufA);
+                addExpectedEvent(IOEvent.createSocketWriteEvent(bufSizeA, sc.socket()));
+
+                bufA.clear();
+                bufA.limit(1);
+                int bytesWritten = (int)sc.write(new ByteBuffer[] { bufA, bufB });
+                assertEquals(bytesWritten, 1 + bufSizeB, "Wrong bytesWritten 1+bufB");
+                addExpectedEvent(IOEvent.createSocketWriteEvent(bytesWritten, sc.socket()));
+            }
+
+            readerThread.joinAndThrow();
+            recording.stop();
+            List<RecordedEvent> events= Events.fromRecording(recording);
+            IOHelper.verifyEquals(events, expectedEvents);
+        }
+    }
+}