I'll ask the log4j guys, thx for spotting this.

---
Luca Burgazzoli


On Thu, Aug 18, 2016 at 5:37 PM, Antonin Stefanutti
<anto...@stefanutti.fr> wrote:
> Hi Luca,
>
> I’ve just encountered an issue when using the date function that gets 
> substituted by Log4j 2 and causes the exception below to be thrown.
>
> It happens in a number of situations:
> - when a route definition containing the date function get logged (in DEBUG 
> level)
> - when an advice is being applied (in INFO level)
> - ...
>
> This is described in: 
> http://stackoverflow.com/questions/27103400/log4j2-how-to-disable-date-lookup-log4j-throws-exception
>
> Invalid date format: [now:hh:mm:ss a], using default 
> java.lang.IllegalArgumentException: Illegal pattern character 'n'
>         at java.text.SimpleDateFormat.compile(SimpleDateFormat.java:826)
>         at java.text.SimpleDateFormat.initialize(SimpleDateFormat.java:634)
>         at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:605)
>         at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:580)
>         at 
> org.apache.logging.log4j.core.lookup.DateLookup.formatDate(DateLookup.java:64)
>         at 
> org.apache.logging.log4j.core.lookup.DateLookup.lookup(DateLookup.java:57)
>         at 
> org.apache.logging.log4j.core.lookup.Interpolator.lookup(Interpolator.java:159)
>         at 
> org.apache.logging.log4j.core.lookup.StrSubstitutor.resolveVariable(StrSubstitutor.java:1046)
>         at 
> org.apache.logging.log4j.core.lookup.StrSubstitutor.substitute(StrSubstitutor.java:963)
>         at 
> org.apache.logging.log4j.core.lookup.StrSubstitutor.substitute(StrSubstitutor.java:853)
>         at 
> org.apache.logging.log4j.core.lookup.StrSubstitutor.replace(StrSubstitutor.java:408)
>         at 
> org.apache.logging.log4j.core.pattern.MessagePatternConverter.format(MessagePatternConverter.java:73)
>         at 
> org.apache.logging.log4j.core.pattern.PatternFormatter.format(PatternFormatter.java:38)
>         at 
> org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.toSerializable(PatternLayout.java:294)
>         at 
> org.apache.logging.log4j.core.layout.PatternLayout.toText(PatternLayout.java:195)
>         at 
> org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:180)
>         at 
> org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:57)
>         at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:120)
>         at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:113)
>         at 
> org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:104)
>         at 
> org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:155)
>         at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:128)
>         at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:119)
>         at 
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
>         at 
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:390)
>         at 
> org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:375)
>         at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:359)
>         at 
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:349)
>         at 
> org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
>         at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
>         at 
> org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1993)
>         at 
> org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1852)
>         at org.apache.logging.slf4j.Log4jLogger.info(Log4jLogger.java:179)
>         at 
> org.apache.camel.builder.AdviceWithTasks$4.task(AdviceWithTasks.java:354)
>         at 
> org.apache.camel.model.RouteDefinition.adviceWith(RouteDefinition.java:280)
>
> Antonin
>
>> On 12 Aug 2016, at 10:17, Luca Burgazzoli <lburgazz...@gmail.com> wrote:
>>
>> I've migrated also spark, spark-rest, hbase and sip,
>> Thx to Vitalii fot the tip about log4j-over-slf4j.
>>
>> The only module that relies on log4j is now camel-itest-karaf
>>
>> ---
>> Luca Burgazzoli
>>
>>
>> On Wed, Aug 10, 2016 at 5:33 PM, Luca Burgazzoli <lburgazz...@gmail.com> 
>> wrote:
>>> Code merged and finger crossed
>>> Please report any issue
>>>
>>> ---
>>> Luca Burgazzoli
>>>
>>>
>>> On Wed, Aug 10, 2016 at 4:14 PM, Claus Ibsen <claus.ib...@gmail.com> wrote:
>>>> Hi
>>>>
>>>> Yeah sure sounds good that all this works will pay of and we will be
>>>> migrated for 2.18 release.
>>>>
>>>> On Wed, Aug 10, 2016 at 3:26 PM, Luca Burgazzoli <lburgazz...@gmail.com> 
>>>> wrote:
>>>>> tests/camel-itest             --> works
>>>>> tests/camel-itest-karaf       --> need to keep log4j because of pax 
>>>>> logging
>>>>> tests/camel-itest-spring-boot --> migrated
>>>>>
>>>>> I've pushed some new bits with some fixes to my branch as well as some 
>>>>> fixes
>>>>> for few test in camel-itest-karaf about system packages needed by Ignite 
>>>>> and
>>>>> Drools.
>>>>>
>>>>> I'm almost ready to rebase from master and the merge my work if you do not
>>>>> have any objection.
>>>>>
>>>>>
>>>>>
>>>>> ---
>>>>> Luca Burgazzoli
>>>>>
>>>>>
>>>>> On Wed, Aug 10, 2016 at 8:45 AM, Claus Ibsen <claus.ib...@gmail.com> 
>>>>> wrote:
>>>>>> Hi Luca
>>>>>>
>>>>>> Its a lot of changes but it looks good.
>>>>>>
>>>>>> I think its maybe only the maven archetypes that may need a bit of
>>>>>> manual testing to see if the generated projects are all compiling and
>>>>>> working as expected.
>>>>>>
>>>>>> I noticed on master branch (not yours) that the blueprint archetype do
>>>>>> not log to the console when you run mvn camel:run goal. This is likely
>>>>>> a general problem where we may need to tweak the run goal to automatic
>>>>>> include some kind of logging out of the box (or include the test
>>>>>> scoped src/test/resources/log4j properties) or whatever it takes.
>>>>>>
>>>>>> I suggest you run the tests in
>>>>>>
>>>>>> tests/camel-itest
>>>>>> tests/camel-itest-karaf
>>>>>> tests/camel-itest-spring-boot
>>>>>>
>>>>>> to see if they are still all working.
>>>>>>
>>>>>> However great work to migrate all that. Then we can get this in the
>>>>>> 2.18 release.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Tue, Aug 9, 2016 at 6:12 PM, Luca Burgazzoli <lburgazz...@gmail.com> 
>>>>>> wrote:
>>>>>>> I've pushed the latest bit of the migration in my branch.
>>>>>>> Except for the mentioned components, everything else should have been 
>>>>>>> migrated.
>>>>>>>
>>>>>>> I really appreciate if someone could help testing a little bit with a
>>>>>>> focus on tooling, examples and tests.
>>>>>>>
>>>>>>> ---
>>>>>>> Luca Burgazzoli
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Aug 9, 2016 at 2:59 PM, Luca Burgazzoli <lburgazz...@gmail.com> 
>>>>>>> wrote:
>>>>>>>> I do not remember now but some problems come from the test
>>>>>>>> dependencies we use (like microcluster, etc)
>>>>>>>> Need to digg into the issue more once the majority of the migration 
>>>>>>>> will be done
>>>>>>>>
>>>>>>>> ---
>>>>>>>> Luca Burgazzoli
>>>>>>>>
>>>>>>>>
>>>>>>>> On Tue, Aug 9, 2016 at 8:35 AM, Claus Ibsen <claus.ib...@gmail.com> 
>>>>>>>> wrote:
>>>>>>>>> Hi
>>>>>>>>>
>>>>>>>>> Ah sounds good the migration goes so well, and that there is only a
>>>>>>>>> few components that may be stuck on log4j 1.x. But those 3rd party
>>>>>>>>> libraries may migrate to log4j v2 or some other logging api (slf4j-api
>>>>>>>>> etc) in the future.
>>>>>>>>>
>>>>>>>>> Though a bit surprising that Apache Spark is locked down on log4j v1.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Mon, Aug 8, 2016 at 7:53 PM, Luca Burgazzoli 
>>>>>>>>> <lburgazz...@gmail.com> wrote:
>>>>>>>>>> Hello,
>>>>>>>>>>
>>>>>>>>>> I've setup my own branch
>>>>>>>>>> (https://github.com/lburgazzoli/apache-camel/tree/CAMEL-10224-log4j2)
>>>>>>>>>> were I'm doing some test to migrate to log4j2.
>>>>>>>>>> So far migrating the properties was not an issue and automated 
>>>>>>>>>> through a script.
>>>>>>>>>>
>>>>>>>>>> The following component can't be migrate as they have some code 
>>>>>>>>>> based on log4j:
>>>>>>>>>> - camel-spark
>>>>>>>>>> - camel-spark-rest
>>>>>>>>>> - camel-sip
>>>>>>>>>> - camel-hbase
>>>>>>>>>>
>>>>>>>>>> For other components I found that log4j.properties was used also to
>>>>>>>>>> perform some test (i.e. a file to serve in jetty9).
>>>>>>>>>>
>>>>>>>>>> All the remaining component and caml-core have been tested an
>>>>>>>>>> successfully migrated.
>>>>>>>>>> I still need to migrate examples, tooling and so on.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> ---
>>>>>>>>>> Luca Burgazzoli
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Tue, Aug 2, 2016 at 10:10 PM, Matt Sicker <boa...@gmail.com> 
>>>>>>>>>> wrote:
>>>>>>>>>>> We have a ticket to track migration issues:
>>>>>>>>>>> https://issues.apache.org/jira/browse/LOG4J2-1473
>>>>>>>>>>>
>>>>>>>>>>> On 2 August 2016 at 12:24, James Carman 
>>>>>>>>>>> <ja...@carmanconsulting.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Now, that's a motivation I can get behind! :)
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Tue, Aug 2, 2016 at 12:38 PM Matt Sicker <boa...@gmail.com> 
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> Another motivation is that when Camel wants to work on JDK9 
>>>>>>>>>>>>> support,
>>>>>>>>>>>> you'll
>>>>>>>>>>>>> find that log4j 1.x doesn't work anymore.
>>>>>>>>>>>>>
>>>>>>>>>>>>> On 2 August 2016 at 11:21, Luca Burgazzoli <lburgazz...@gmail.com>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> My only motivation was to keep the dependencies up to date
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ---
>>>>>>>>>>>>>> Luca Burgazzoli
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Tue, Aug 2, 2016 at 5:50 PM, James Carman <
>>>>>>>>>>>> ja...@carmanconsulting.com
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>> If it's only for test, what's the motivation?  Is anything 
>>>>>>>>>>>>>>> broken?
>>>>>>>>>>>>> Does
>>>>>>>>>>>>>>> anything code directly to the API?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On Tue, Aug 2, 2016 at 11:21 AM Matt Sicker <boa...@gmail.com>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> You can use YAML instead of XML or properties files for a nice
>>>>>>>>>>>> config
>>>>>>>>>>>>>>>> format. Plus, there's a few log4j 1->2 tools out there already:
>>>>>>>>>>>>>>>> https://issues.apache.org/jira/browse/LOG4J2-1436
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On 2 August 2016 at 09:48, Nicola Ferraro 
>>>>>>>>>>>>>>>> <ni.ferr...@gmail.com>
>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> I logged a Jira:
>>>>>>>>>>>> https://issues.apache.org/jira/browse/CAMEL-10217
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On Tue, Aug 2, 2016 at 4:35 PM, Claus Ibsen <
>>>>>>>>>>>> claus.ib...@gmail.com>
>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Hi
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Yeah some should be removed, but mind that some 3rd party
>>>>>>>>>>>>> libraries
>>>>>>>>>>>>>>>>>> are using log4j hardcoded as dependency so not all can be
>>>>>>>>>>>> removed.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> But I think camel-scr is a mistake to use log4j.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Its worthwhile I think to take a look which one can be 
>>>>>>>>>>>>>>>>>> removed
>>>>>>>>>>>> or
>>>>>>>>>>>>>> not.
>>>>>>>>>>>>>>>>>> Feel free to log a JIRA and work on this.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> On Tue, Aug 2, 2016 at 4:27 PM, Nicola Ferraro <
>>>>>>>>>>>>> nferr...@redhat.com
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>>>> Doing integration tests I found that some components include
>>>>>>>>>>>>>> logging
>>>>>>>>>>>>>>>>>>> implementations outside the test scope, so I did a fast 
>>>>>>>>>>>>>>>>>>> check:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> *for comp in $(ls | grep "camel-" | grep -v ".iml"); do*
>>>>>>>>>>>>>>>>>>> * cd $comp*
>>>>>>>>>>>>>>>>>>> * mvn dependency:tree | grep
>>>>>>>>>>>>>>>>>>> 'log4j\|logback\|slf4j-simple\|slf4j-jdk14\|slf4j-log4j12' |
>>>>>>>>>>>>> grep
>>>>>>>>>>>>>> -v
>>>>>>>>>>>>>>>>>> test |
>>>>>>>>>>>>>>>>>>> xargs -I line echo "$(pwd) line"*
>>>>>>>>>>>>>>>>>>> * cd ..*
>>>>>>>>>>>>>>>>>>> *done*
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Although it is ok for a spring-boot starter to include a
>>>>>>>>>>>> logging
>>>>>>>>>>>>>>>>>>> implementation, they should not be included in normal
>>>>>>>>>>>> component
>>>>>>>>>>>>>>>> modules
>>>>>>>>>>>>>>>>>> IMO.
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Should these dependencies be removed?
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> The results:
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-atmos [INFO] |  +-
>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-gora [INFO] |  +-
>>>>>>>>>>>>>>>>>>> org.slf4j:slf4j-log4j12:jar:1.7.21:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-gora [INFO] |  -
>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-hbase [INFO] |  +-
>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-jbpm [INFO] +-
>>>>>>>>>>>>>>>>>>> org.slf4j:slf4j-log4j12:jar:1.7.21:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-jbpm [INFO] |  -
>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-jt400 [INFO] +-
>>>>>>>>>>>>>>>>>>> org.slf4j:slf4j-log4j12:jar:1.7.21:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-jt400 [INFO] |  -
>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-krati [INFO] |  -
>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-openshift [INFO] |  -
>>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-salesforce [INFO] +-
>>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-scr [INFO] +-
>>>>>>>>>>>>>>>>>>> org.slf4j:slf4j-log4j12:jar:1.7.21:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-scr [INFO] +-
>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spark [INFO] |  +-
>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spark [INFO] |  |  +-
>>>>>>>>>>>>>>>>>>> log4j:apache-log4j-extras:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spark-rest [INFO] |  +-
>>>>>>>>>>>>>>>>>>> org.slf4j:slf4j-simple:jar:1.7.21:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spring-boot [INFO] |  |  +-
>>>>>>>>>>>>>>>>>>> ch.qos.logback:logback-classic:jar:1.1.7:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spring-boot [INFO] |  |  |  -
>>>>>>>>>>>>>>>>>>> ch.qos.logback:logback-core:jar:1.1.7:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spring-boot [INFO] |  |  -
>>>>>>>>>>>>>>>>>>> org.slf4j:log4j-over-slf4j:jar:1.7.21:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spring-boot-starter [INFO] |  |  
>>>>>>>>>>>>>>>>>>> +-
>>>>>>>>>>>>>>>>>>> ch.qos.logback:logback-classic:jar:1.1.7:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spring-boot-starter [INFO] |  |  |
>>>>>>>>>>>> -
>>>>>>>>>>>>>>>>>>> ch.qos.logback:logback-core:jar:1.1.7:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-spring-boot-starter [INFO] |  |  -
>>>>>>>>>>>>>>>>>>> org.slf4j:log4j-over-slf4j:jar:1.7.21:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-zipkin-starter [INFO] |  |  +-
>>>>>>>>>>>>>>>>>>> ch.qos.logback:logback-classic:jar:1.1.7:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-zipkin-starter [INFO] |  |  |  -
>>>>>>>>>>>>>>>>>>> ch.qos.logback:logback-core:jar:1.1.7:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-zipkin-starter [INFO] |  |  -
>>>>>>>>>>>>>>>>>>> org.slf4j:log4j-over-slf4j:jar:1.7.21:compile*
>>>>>>>>>>>>>>>>>>> *./camel/components/camel-zookeeper [INFO] |  +-
>>>>>>>>>>>>>>>>>>> log4j:log4j:jar:1.2.17:compile*
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> On Tue, Aug 2, 2016 at 3:14 PM, Luca Burgazzoli <
>>>>>>>>>>>>>>>> lburgazz...@gmail.com
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> Yep, I meant upgrading log4j for test only, run-time should
>>>>>>>>>>>>>>>>>>>> definitively use slf4j-api (or maybe a custom facade)
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> ---
>>>>>>>>>>>>>>>>>>>> Luca Burgazzoli
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> On Tue, Aug 2, 2016 at 2:50 PM, Claus Ibsen <
>>>>>>>>>>>>>> claus.ib...@gmail.com>
>>>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>>>>>> On Tue, Aug 2, 2016 at 2:42 PM, Luca Burgazzoli <
>>>>>>>>>>>>>>>>>> lburgazz...@gmail.com>
>>>>>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>>>>>>> Hello,
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> as log4j 1.2 is EOL since a year, would it make sense to
>>>>>>>>>>>>> move
>>>>>>>>>>>>>> to
>>>>>>>>>>>>>>>>>> log4j
>>>>>>>>>>>>>>>>>>>> 2 ?
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> We only use it for testing. No runtime dependency.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> log4j v2 did not support log4j.properties file so any
>>>>>>>>>>>>> migration
>>>>>>>>>>>>>>>> was
>>>>>>>>>>>>>>>>> a
>>>>>>>>>>>>>>>>>>>>> real pain as the log4j xml file format is verbose and
>>>>>>>>>>>> clunky
>>>>>>>>>>>>> to
>>>>>>>>>>>>>>>> work
>>>>>>>>>>>>>>>>>>>>> with.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Only recently they added support for .properties file but 
>>>>>>>>>>>>>>>>>>>>> I
>>>>>>>>>>>>>> think
>>>>>>>>>>>>>>>>> they
>>>>>>>>>>>>>>>>>>>>> may have changed the syntax slightly (not sure).
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>> http://stackoverflow.com/questions/22485074/log4j-2-doesnt-support-log4j-properties-file-anymore
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> And I think I read somewhere that log4j v1 has problems
>>>>>>>>>>>> with
>>>>>>>>>>>>>> Java
>>>>>>>>>>>>>>>> 9.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> If migration can be super easy on current 2.18 then it is
>>>>>>>>>>>>> okay.
>>>>>>>>>>>>>>>>>>>>> Some kind of migration tool that can covert v1 properties
>>>>>>>>>>>> to
>>>>>>>>>>>>> v2
>>>>>>>>>>>>>>>>>>>>> properties then that can be doable.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> But if not then I would like to postpone this to Camel 3.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> ---
>>>>>>>>>>>>>>>>>>>>>> Luca Burgazzoli
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>>>> Claus Ibsen
>>>>>>>>>>>>>>>>>>>>> -----------------
>>>>>>>>>>>>>>>>>>>>> http://davsclaus.com @davsclaus
>>>>>>>>>>>>>>>>>>>>> Camel in Action 2: https://www.manning.com/ibsen2
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>>> Nicola Ferraro <nferr...@redhat.com>
>>>>>>>>>>>>>>>>>>> Senior Software Engineer, JBoss Fuse
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>> Claus Ibsen
>>>>>>>>>>>>>>>>>> -----------------
>>>>>>>>>>>>>>>>>> http://davsclaus.com @davsclaus
>>>>>>>>>>>>>>>>>> Camel in Action 2: https://www.manning.com/ibsen2
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>> Matt Sicker <boa...@gmail.com>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> Matt Sicker <boa...@gmail.com>
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> Matt Sicker <boa...@gmail.com>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Claus Ibsen
>>>>>>>>> -----------------
>>>>>>>>> http://davsclaus.com @davsclaus
>>>>>>>>> Camel in Action 2: https://www.manning.com/ibsen2
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Claus Ibsen
>>>>>> -----------------
>>>>>> http://davsclaus.com @davsclaus
>>>>>> Camel in Action 2: https://www.manning.com/ibsen2
>>>>
>>>>
>>>>
>>>> --
>>>> Claus Ibsen
>>>> -----------------
>>>> http://davsclaus.com @davsclaus
>>>> Camel in Action 2: https://www.manning.com/ibsen2
>

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