--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.net.http/share/classes/java/net/http/internal/AsyncEvent.java	Wed Feb 07 14:17:24 2018 +0000
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2015, 2018, 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 java.net.http.internal;
+
+import java.io.IOException;
+import java.nio.channels.SelectableChannel;
+
+/**
+ * Event handling interface from HttpClientImpl's selector.
+ *
+ * If REPEATING is set then the event is not cancelled after being posted.
+ */
+abstract class AsyncEvent {
+
+    public static final int REPEATING = 0x2; // one off event if not set
+
+    protected final int flags;
+
+    AsyncEvent() {
+        this(0);
+    }
+
+    AsyncEvent(int flags) {
+        this.flags = flags;
+    }
+
+    /** Returns the channel */
+    public abstract SelectableChannel channel();
+
+    /** Returns the selector interest op flags OR'd */
+    public abstract int interestOps();
+
+    /** Called when event occurs */
+    public abstract void handle();
+
+    /**
+     * Called when an error occurs during registration, or when the selector has
+     * been shut down. Aborts all exchanges.
+     *
+     * @param ioe  the IOException, or null
+     */
+    public abstract void abort(IOException ioe);
+
+    public boolean repeating() {
+        return (flags & REPEATING) != 0;
+    }
+}