From cea87fb8c0d99429af47cde1c7995f25533a8006 Mon Sep 17 00:00:00 2001
From: Dave Syer <dsyer@pivotal.io>
Date: Fri, 31 Mar 2017 09:01:47 +0100
Subject: [PATCH] Include cause in rethrown exception

---
 .../springframework/cloud/function/gateway/ProxyExchange.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spring-cloud-function-gateway/src/main/java/org/springframework/cloud/function/gateway/ProxyExchange.java b/spring-cloud-function-gateway/src/main/java/org/springframework/cloud/function/gateway/ProxyExchange.java
index 3fa9d84de..4451bdad9 100644
--- a/spring-cloud-function-gateway/src/main/java/org/springframework/cloud/function/gateway/ProxyExchange.java
+++ b/spring-cloud-function-gateway/src/main/java/org/springframework/cloud/function/gateway/ProxyExchange.java
@@ -476,7 +476,7 @@ public class ProxyExchange<T> {
 			}
 			catch (HttpMessageNotWritableException
 					| HttpMediaTypeNotAcceptableException e) {
-				throw new IllegalStateException("Cannot convert body");
+				throw new IllegalStateException("Cannot convert body", e);
 			}
 			return response.getInputStream();
 		}