From 307c00e0739bf56bf3779b85440fae45fb3b1f15 Mon Sep 17 00:00:00 2001
From: Trustin Lee <trustin@gmail.com>
Date: Tue, 30 Jun 2009 09:52:47 +0000
Subject: [PATCH] Traceable exception message

---
 .../jboss/netty/handler/codec/replay/ReplayingDecoder.java   | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/jboss/netty/handler/codec/replay/ReplayingDecoder.java b/src/main/java/org/jboss/netty/handler/codec/replay/ReplayingDecoder.java
index dac1228b40..a8dc25fa56 100644
--- a/src/main/java/org/jboss/netty/handler/codec/replay/ReplayingDecoder.java
+++ b/src/main/java/org/jboss/netty/handler/codec/replay/ReplayingDecoder.java
@@ -435,8 +435,9 @@ public abstract class ReplayingDecoder<T extends Enum<T>>
 
             if (oldReaderIndex == cumulation.readerIndex() && oldState == state) {
                 throw new IllegalStateException(
-                        "decode() method must consume at least one byte "
-                                + "if it returned a decoded message.");
+                        "decode() method must consume at least one byte " +
+                        "if it returned a decoded message (caused by: " +
+                        getClass() + ")");
             }
 
             // A successful decode