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Date: Thu, 1 Nov 2007 01:42:50 -0700 (PDT)
From: "spark shen (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Created: (HARMONY-5054) [ASN.1] BerInputStream will
 incorrectly resize buffer when the enveloped InputStream has lots of bytes
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[ASN.1] BerInputStream will incorrectly resize buffer when the enveloped InputStream has lots of bytes
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                 Key: HARMONY-5054
                 URL: https://issues.apache.org/jira/browse/HARMONY-5054
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
            Reporter: spark shen


I was writing scenario test for ldap service provider, and trying to extract schema information from an Openldap server. The response message is quite long - longer than the initial buffer size of BerInputStream. While decoding the reponse, I got the following exception:


I believe the problem resides in a constructor:
<BerInputStream.java>
137         if (buffer.length < length) {
138                byte[] newBuffer = new byte[length];
</BerInputStream.java>

And they should be modified into 
if (buffer.length < (length + offset)) {
                byte[] newBuffer = new byte[length + offset];

It's hard to write a standalone test case, due to the large number of buffer size. Writing a scenario test would be simpler. I will provide my scenario test and patch soon.

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