From d92ac8062b6d02846917a351dac8b3a6a061fae9 Mon Sep 17 00:00:00 2001
From: Simone Bordet <simone.bordet@gmail.com>
Date: Sun, 11 May 2014 11:21:11 +0200
Subject: [PATCH] Avoid IllegalStateException in case of abort concurrent to
 header generation.

---
 .../org/eclipse/jetty/client/http/HttpSenderOverHTTP.java  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/jetty-client/src/main/java/org/eclipse/jetty/client/http/HttpSenderOverHTTP.java b/jetty-client/src/main/java/org/eclipse/jetty/client/http/HttpSenderOverHTTP.java
index a00be54cac2..d176826fc94 100644
--- a/jetty-client/src/main/java/org/eclipse/jetty/client/http/HttpSenderOverHTTP.java
+++ b/jetty-client/src/main/java/org/eclipse/jetty/client/http/HttpSenderOverHTTP.java
@@ -23,6 +23,7 @@ import java.nio.ByteBuffer;
 import org.eclipse.jetty.client.HttpClient;
 import org.eclipse.jetty.client.HttpContent;
 import org.eclipse.jetty.client.HttpExchange;
+import org.eclipse.jetty.client.HttpRequestException;
 import org.eclipse.jetty.client.HttpSender;
 import org.eclipse.jetty.client.api.ContentProvider;
 import org.eclipse.jetty.client.api.Request;
@@ -107,6 +108,12 @@ public class HttpSenderOverHTTP extends HttpSender
                         endPoint.write(new ByteBufferRecyclerCallback(callback, bufferPool, toRecycle), toWrite);
                         return;
                     }
+                    case DONE:
+                    {
+                        // The headers have already been generated, perhaps by a concurrent abort.
+                        callback.failed(new HttpRequestException("Could not generate headers", request));
+                        return;
+                    }
                     default:
                     {
                         throw new IllegalStateException(result.toString());