From 9dabaeeb9672066467b04aa630e0a62d44615e49 Mon Sep 17 00:00:00 2001
From: Sebastian Bazley <sebb@apache.org>
Date: Thu, 27 Sep 2012 02:33:01 +0000
Subject: [PATCH] Show where the parsing failed

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1390814 13f79535-47bb-0310-9956-ffa450edef68
---
 .../java/org/apache/commons/lang3/time/FastDateParser.java     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/apache/commons/lang3/time/FastDateParser.java b/src/main/java/org/apache/commons/lang3/time/FastDateParser.java
index 9f1850e4d..12f99c70e 100644
--- a/src/main/java/org/apache/commons/lang3/time/FastDateParser.java
+++ b/src/main/java/org/apache/commons/lang3/time/FastDateParser.java
@@ -122,7 +122,8 @@ public class FastDateParser implements DateParser, Serializable {
 
         Matcher patternMatcher= formatPattern.matcher(pattern);
         if(!patternMatcher.lookingAt()) {
-            throw new IllegalArgumentException("Invalid pattern");
+            throw new IllegalArgumentException(
+                    "Illegal pattern character '" + pattern.charAt(patternMatcher.regionStart()) + "'");
         }
 
         currentFormatField= patternMatcher.group();