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From Ceki Gulcu <c...@qos.ch>
Subject Re: Fwd: [jira] [Closed] (LOG4J2-1375) Update SLF4J from 1.7.13 to 1.7.21
Date Sat, 23 Apr 2016 13:12:53 GMT
Hello,

For your information, slf4j-api version 1.7.21 will work with current 
versions of log4j2 just fine albeit without replay support. For replay 
support, log4j2's implementation of org.slf4j.Logger interface needs to 
have a method with the signature log(org.slf4j.event.LoggingEvent) in 
which case events generated during SLF4J initialization will be 
replayed. Note that if log4j2's Logger implementation chooses to 
implement the aforementioned log method, log42 will de facto depend on 
SLF4J version 1.7.15 and later both at compile and *runtime*.

The runtime dependency might seem surprising but some applications 
perform reflection on the org.slf4j.Logger implementation which will 
fail without slf4j-api 1.7.15 or later being present on the classpath.

I hope this helps,

--
Ceki

On 4/23/2016 14:47, Ralph Goers wrote:
> We are not fully compatible with this version of SLF4J.  It had some
> initialization race conditions so Substitute Loggers were invented.
> Anyway, there is a new interface we need to implement.
>
> Ralph
>
> Begin forwarded message:
>
>> *From:* "Remko Popma (JIRA)" <jira@apache.org <mailto:jira@apache.org>>
>> *Date:* April 23, 2016 at 4:13:12 AM MST
>> *To:* log4j-dev@logging.apache.org <mailto:log4j-dev@logging.apache.org>
>> *Subject:* *[jira] [Closed] (LOG4J2-1375) Update SLF4J from 1.7.13 to
>> 1.7.21*
>> *Reply-To:* "Log4J Developers List" <log4j-dev@logging.apache.org
>> <mailto:log4j-dev@logging.apache.org>>
>>
>>
>>     [
>> https://issues.apache.org/jira/browse/LOG4J2-1375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
>> ]
>>
>> Remko Popma closed LOG4J2-1375.
>> -------------------------------
>>    Resolution: Fixed
>>
>>> Update SLF4J from 1.7.13 to 1.7.21
>>> ----------------------------------
>>>
>>>                Key: LOG4J2-1375
>>>                URL: https://issues.apache.org/jira/browse/LOG4J2-1375
>>>            Project: Log4j 2
>>>         Issue Type: Improvement
>>>         Components: SLF4J Bridge
>>>   Affects Versions: 2.5
>>>           Reporter: Remko Popma
>>>           Assignee: Remko Popma
>>>            Fix For: 2.6
>>>
>>>
>>> Update SLF4J from 1.7.13 to 1.7.21
>>
>>
>>
>> --
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>>
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