From f6643ccbe7cd678af6a0b40cd4a0584f6808ac46 Mon Sep 17 00:00:00 2001
From: Greg Wilkins <gregw@intalio.com>
Date: Wed, 6 Jun 2012 16:49:27 +0200
Subject: [PATCH] jetty-9 WriteFlusher cleanup

---
 jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java b/jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java
index 8cb6084f416..c8a0a2cb03e 100644
--- a/jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java
+++ b/jetty-io/src/main/java/org/eclipse/jetty/io/WriteFlusher.java
@@ -36,8 +36,10 @@ abstract public class WriteFlusher
     }
 
     /* ------------------------------------------------------------ */
-    public void write(Object context, Callback callback, ByteBuffer... buffers)
+    public <C> void write(C context, Callback<C> callback, ByteBuffer... buffers)
     {
+        if (callback==null)
+            throw new IllegalArgumentException();
         if (!_writing.compareAndSet(false,true))
             throw new WritePendingException();
         try