--- /dev/null	2018-06-17 23:18:20.806999507 +0800
+++ new/test/jdk/jfr/event/io/TestDisabledEvents.java	2019-01-29 11:03:54.874108050 +0800
@@ -0,0 +1,134 @@
+/*
+ * 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 static jdk.testlibrary.Asserts.assertNotEquals;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.testlibrary.jfr.Events;
+import jdk.testlibrary.jfr.IOEvent;
+
+/*
+ * @test
+ * @summary Test with FlightRecorder enabled but with the events disabled.
+ * @key jfr
+ * @library /lib/testlibrary
+ * @run main/othervm jdk.jfr.event.io.TestDisabledEvents
+ */
+
+// Verify that IO operations are correct and that no events are generated.
+public class TestDisabledEvents {
+
+    private static final int writeInt = 'A';
+    private static final byte[] writeBuf = { 'B', 'C', 'D' };
+
+    public static void main(String[] args) throws Throwable {
+        File tmp = File.createTempFile("TestDisabledEvents", ".tmp", new File("."));
+        tmp.deleteOnExit();
+        Recording recording = new Recording();
+        recording.disable(IOEvent.EVENT_FILE_READ);
+        recording.disable(IOEvent.EVENT_FILE_WRITE);
+        recording.start();
+
+        useRandomAccessFile(tmp);
+        useFileStreams(tmp);
+        useFileChannel(tmp);
+
+        recording.stop();
+        for (RecordedEvent event : Events.fromRecording(recording)) {
+            final String eventName = event.getEventType().getName();
+            System.out.println("Got eventName:" + eventName);
+            assertNotEquals(eventName, IOEvent.EVENT_FILE_READ, "Got disabled read event");
+            assertNotEquals(eventName, IOEvent.EVENT_FILE_WRITE, "Got disabled write event");
+        }
+    }
+
+    private static void useRandomAccessFile(File tmp) throws Throwable {
+        tmp.delete();
+        try (RandomAccessFile ras = new RandomAccessFile(tmp, "rw")) {
+            ras.write(writeInt);
+            ras.write(writeBuf);
+            ras.seek(0);
+            int readInt = ras.read();
+            assertEquals(readInt, writeInt, "Wrong readInt");
+            byte[] readBuf = new byte[writeBuf.length];
+            int readSize = ras.read(readBuf);
+            assertEquals(readSize, writeBuf.length, "Wrong readSize");
+            // Try to read more which should generate EOF.
+            readInt = ras.read();
+            assertEquals(readInt, -1, "Wrong readInt after EOF");
+        }
+    }
+
+    private static void useFileStreams(File tmp) throws Throwable {
+        tmp.delete();
+        try (FileOutputStream fos = new FileOutputStream(tmp)) {
+            fos.write(writeInt);
+            fos.write(writeBuf);
+        }
+
+        try (FileInputStream fis = new FileInputStream(tmp)) {
+            int readInt = fis.read();
+            assertEquals(readInt, writeInt, "Wrong readInt");
+            byte[] readBuf = new byte[writeBuf.length];
+            int readSize = fis.read(readBuf);
+            assertEquals(readSize, writeBuf.length, "Wrong readSize");
+            // Try to read more which should generate EOF.
+            readInt = fis.read();
+            assertEquals(readInt, -1, "Wrong readInt after EOF");
+        }
+    }
+
+    private static void useFileChannel(File tmp) throws Throwable {
+        tmp.delete();
+        try (RandomAccessFile rf = new RandomAccessFile(tmp, "rw");
+                FileChannel ch = rf.getChannel()) {
+            final String bufContent = "0123456789";
+            final int bufSize = bufContent.length();
+            ByteBuffer writeBuf = ByteBuffer.allocateDirect(bufSize);
+            writeBuf.put(bufContent.getBytes());
+
+            writeBuf.flip();
+            int writeSize = ch.write(writeBuf);
+            assertEquals(writeSize, bufSize, "Wrong writeSize for FileChannel");
+
+            ch.position(0);
+            ByteBuffer readBuf = ByteBuffer.allocateDirect(bufSize);
+            int readSize = ch.read(readBuf);
+            assertEquals(readSize, bufSize, "Wrong readSize full for FileChannel");
+            assertEquals(0, writeBuf.compareTo(readBuf), "Unexpected readBuf content");
+        }
+    }
+}