I’m not sure I understand your concern. Category B licensed works can be 
included as binaries. 

However, I expressed a concern on this Jira issue about projects that believe 
they are OK using reload4j since we are still getting security vulnerability 
reports for Log4j 1.


Ralph

> On Feb 9, 2022, at 6:54 PM, Matt Sicker <[email protected]> wrote:
> 
> I’m not sure how any PMCs are getting away with distributing Logback as it’s 
> under class B licenses. More info: 
> https://www.apache.org/legal/resolved.html#category-b
> 
> —
> Matt Sicker
> 
>> On Feb 9, 2022, at 14:16, Gary Gregory <[email protected]> wrote:
>> 
>> FYI
>> 
>> ---------- Forwarded message ---------
>> From: Chris Nauroth (Jira) <[email protected]>
>> Date: Wed, Feb 9, 2022, 14:11
>> Subject: [jira] [Resolved] (ZOOKEEPER-2342) Migrate to Log4J 2.
>> To: <[email protected]>
>> 
>> 
>> 
>>    [
>> https://issues.apache.org/jira/browse/ZOOKEEPER-2342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
>> ]
>> 
>> Chris Nauroth resolved ZOOKEEPER-2342.
>> --------------------------------------
>>   Resolution: Won't Do
>> 
>> ZOOKEEPER-4427 has been committed to migrate to Logback in a new major
>> version (with the option to swap out the SLF4J back-end if users prefer
>> Log4J 2). For prior version lines, discussion is under way on the dev
>> mailing list considering reload4j and the new bridge released by Apache
>> Logging.
>> 
>> I'm going to close out this issue, because there is no longer community
>> interest in the earlier Log4J 2 migration work from a few years ago. Thank
>> you to everyone who participated on this issue.
>> 
>>> Migrate to Log4J 2.
>>> -------------------
>>> 
>>>               Key: ZOOKEEPER-2342
>>>               URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2342
>>>           Project: ZooKeeper
>>>        Issue Type: Bug
>>>          Reporter: Chris Nauroth
>>>          Assignee: Chris Nauroth
>>>          Priority: Major
>>>       Attachments: ZOOKEEPER-2342.001.patch
>>> 
>>> 
>>> ZOOKEEPER-1371 removed our source code dependency on Log4J.  It appears
>> that this also removed the Log4J SLF4J binding jar from the runtime
>> classpath.  Without any SLF4J binding jar available on the runtime
>> classpath, it is impossible to write logs.
>>> This JIRA investigated migration to Log4J 2 as a possible path towards
>> resolving the bug introduced by ZOOKEEPER-1371.  At this point, we know
>> this is not feasible short-term.  This JIRA remains open to track long-term
>> migration to Log4J 2.
>> 
>> 
>> 
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