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From Ceki Gülcü <c...@qos.ch>
Subject Re: License questions
Date Fri, 09 May 2003 17:08:17 GMT

Hi Serge,

Have you looked at the terms of the Apache license?

A copy of the license can be found at


See also the FAQ

http://www.apache.org/LICENSE.txt in particular the answer to question 11.

Does this answer your question?

At 06:46 PM 5/9/2003 +0200, you wrote:

>Hi all,
>First of all congratulations on Log4J and Chainsaw ! They are two great 
>tools which have really helped me through a lot of rough debugging times :)
>Anyway, I have developed a small tool that integrates with the JDBC logger 
>called P6Spy. It has a module that supports Log4J, and can therefore be 
>configured to use the socket appender. My tool uses log messages sent by 
>P6Spy containing metrics about SQL statements, and builds statistics in 
>order to recommend database index creation (close to what MS SQL Profiler 
>does, or MyProfiler, but my tool is not database specific).
>As I knew nothing of Swing programming I started out by modifying 
>Chainsaw's code. I had to move the classes around a bit, renaming packages 
>and changing some others quite significantly because I added a tabbed pane 
>that includes my SQL specific views. I want to release my tool using a 
>license based on the Apache license (hosted on SourceForge), but I am not 
>clear as to how to handle license issues. As some classes contain both 
>Chainsaw's original code (I used the source code from version 1.2.7 I 
>think) and my own modifications, I am not clear as to what the proper 
>course of action is. I have no problem at giving credit where it's due, 
>and I am wondering if I could just leave the files that have the Apache 
>license headers alone (although I have added my own classes and code), and 
>add my Apache-based license on my new classes. Or is it ok if I just give 
>the original credit in a COPYRIGHT file for all the original authors and code ?
>I don't think this should be commited in Log4J because it is more P6Spy 
>specific than Log4J, but as I based this on Chainsaw's code to start with, 
>I just want to make sure everybody's cool with the release before I do it 
>(I have also talked to the P6Spy team).
>   Serge Huber.
>- -- --- -----=[ serge.huber at jahia dot com ]=---- --- -- -
>Jahia : A collaborative source CMS and Portal Server
>www.jahia.org Community and product web site
>www.jahia.com Commercial services company
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Ceki  For log4j documentation consider "The complete log4j manual"

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