From ecdab76705d99bbc95309d4c06e249e27f43de9b Mon Sep 17 00:00:00 2001
From: agapple <jianghang115@gmail.com>
Date: Tue, 3 Sep 2019 08:51:21 +0800
Subject: [PATCH] fixed issue #2129 , Negative seek offset

---
 .../java/com/alibaba/otter/canal/common/utils/FileUtils.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/common/src/main/java/com/alibaba/otter/canal/common/utils/FileUtils.java b/common/src/main/java/com/alibaba/otter/canal/common/utils/FileUtils.java
index c6cb8e78..4cf098e1 100644
--- a/common/src/main/java/com/alibaba/otter/canal/common/utils/FileUtils.java
+++ b/common/src/main/java/com/alibaba/otter/canal/common/utils/FileUtils.java
@@ -28,10 +28,13 @@ public class FileUtils {
                 minIndex = 0;
             }
 
-            String line;
+            if (readIndex < 0) {
+                readIndex = 0;
+            }
             rf.seek(readIndex);
             int k = 0;
             int c = -1;
+            String line = null;
             while (readIndex > start) {
                 if (k == l) {
                     break;