--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/eclipse/jetty/continuation/ContinuationSupport.java	Wed Sep 07 21:15:48 2016 -0600
@@ -0,0 +1,164 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.continuation;
+
+import java.lang.reflect.Constructor;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletRequestWrapper;
+import javax.servlet.ServletResponse;
+
+/* ------------------------------------------------------------ */
+/** ContinuationSupport.
+ *
+ * Factory class for accessing Continuation instances, which with either be
+ * native to the container (jetty >= 6), a servlet 3.0 or a faux continuation.
+ *
+ */
+public class ContinuationSupport
+{
+    static final boolean __jetty6;
+    static final boolean __servlet3;
+    static final Class<?> __waitingContinuation;
+    static final Constructor<? extends Continuation> __newServlet3Continuation;
+    static final Constructor<? extends Continuation> __newJetty6Continuation;
+    static
+    {
+        boolean servlet3Support=false;
+        Constructor<? extends Continuation>s3cc=null;
+        try
+        {
+            boolean servlet3=ServletRequest.class.getMethod("startAsync")!=null;
+            if (servlet3)
+            {
+                Class<? extends Continuation> s3c = ContinuationSupport.class.getClassLoader().loadClass("org.eclipse.jetty.continuation.Servlet3Continuation").asSubclass(Continuation.class);
+                s3cc=s3c.getConstructor(ServletRequest.class);
+                servlet3Support=true;
+            }
+        }
+        catch (Exception e)
+        {}
+        finally
+        {
+            __servlet3=servlet3Support;
+            __newServlet3Continuation=s3cc;
+        }
+
+        boolean jetty6Support=false;
+        Constructor<? extends Continuation>j6cc=null;
+        try
+        {
+            Class<?> jetty6ContinuationClass = ContinuationSupport.class.getClassLoader().loadClass("org.mortbay.util.ajax.Continuation");
+            boolean jetty6=jetty6ContinuationClass!=null;
+            if (jetty6)
+            {
+                Class<? extends Continuation> j6c = ContinuationSupport.class.getClassLoader().loadClass("org.eclipse.jetty.continuation.Jetty6Continuation").asSubclass(Continuation.class);
+                j6cc=j6c.getConstructor(ServletRequest.class, jetty6ContinuationClass);
+                jetty6Support=true;
+            }
+        }
+        catch (Exception e)
+        {}
+        finally
+        {
+            __jetty6=jetty6Support;
+            __newJetty6Continuation=j6cc;
+        }
+
+        Class<?> waiting=null;
+        try
+        {
+            waiting=ContinuationSupport.class.getClassLoader().loadClass("org.mortbay.util.ajax.WaitingContinuation");
+        }
+        catch (Exception e)
+        {
+        }
+        finally
+        {
+            __waitingContinuation=waiting;
+        }
+    }
+
+    /* ------------------------------------------------------------ */
+    /**
+     * Get a Continuation.  The type of the Continuation returned may
+     * vary depending on the container in which the application is
+     * deployed. It may be an implementation native to the container (eg
+     * org.eclipse.jetty.server.AsyncContinuation) or one of the utility
+     * implementations provided such as an internal <code>FauxContinuation</code>
+     * or a real implementation like {@link org.eclipse.jetty.continuation.Servlet3Continuation}.
+     * @param request The request
+     * @return a Continuation instance
+     */
+    public static Continuation getContinuation(ServletRequest request)
+    {
+        Continuation continuation = (Continuation) request.getAttribute(Continuation.ATTRIBUTE);
+        if (continuation!=null)
+            return continuation;
+
+        while (request instanceof ServletRequestWrapper)
+            request=((ServletRequestWrapper)request).getRequest();
+
+        if (__servlet3 )
+        {
+            try
+            {
+                continuation=__newServlet3Continuation.newInstance(request);
+                request.setAttribute(Continuation.ATTRIBUTE,continuation);
+                return continuation;
+            }
+            catch(Exception e)
+            {
+                throw new RuntimeException(e);
+            }
+        }
+
+        if (__jetty6)
+        {
+            Object c=request.getAttribute("org.mortbay.jetty.ajax.Continuation");
+            try
+            {
+                if (c==null || __waitingContinuation==null || __waitingContinuation.isInstance(c))
+                    continuation=new FauxContinuation(request);
+                else
+                    continuation= __newJetty6Continuation.newInstance(request,c);
+                request.setAttribute(Continuation.ATTRIBUTE,continuation);
+                return continuation;
+            }
+            catch(Exception e)
+            {
+                throw new RuntimeException(e);
+            }
+        }
+
+        throw new IllegalStateException("!(Jetty || Servlet 3.0 || ContinuationFilter)");
+    }
+
+    /* ------------------------------------------------------------ */
+    /**
+     * @param request the servlet request
+     * @param response the servlet response
+     * @deprecated use {@link #getContinuation(ServletRequest)}
+     * @return the continuation
+     */
+    @Deprecated
+    public static Continuation getContinuation(final ServletRequest request, final ServletResponse response)
+    {
+        return getContinuation(request);
+    }
+}