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From "Chris Kelly (JIRA)" <>
Subject [jira] [Created] (LANG-811) StringUtils.stripStart strips out too many characters
Date Tue, 10 Jul 2012 15:29:34 GMT
Chris Kelly created LANG-811:

             Summary: StringUtils.stripStart strips out too many characters 
                 Key: LANG-811
             Project: Commons Lang
          Issue Type: Bug
          Components: lang.*
    Affects Versions: 3.1, 3.0, 2.6, 2.5
         Environment: N/A
            Reporter: Chris Kelly

I have a String "Tag-TransactionId" for which I want to remove the leading "Tag-" leaving
only "TransactionId". I thought I could use StringUtils.stripStart for this but when I do
I get the string "ransactionId" instead. 

Below is a short method indicating the issue. 

 public static void main(String[] args) {
        String key = "Tag-TransactionId";

        String keyWithoutTag = StringUtils.stripStart(key, "Tag-");
        String expected = "TransactionId";

        System.out.println("Expected: " + expected + " but got: " + keyWithoutTag);

I have tried repeating test on commons-lang from 2.5 upwards to the latest release all with
the same behaviour. It looks like if the string to be removed has characters similar to the
remaining string, the stripStart methods works incorrectly. It seems to be a case problem
as well. If I use "Tag-transactionId" with stripStart it successfully returns "transactionId"

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