Here is an answer to your question regarding using Log4j for tomcat internal
logging. I have seen lots of tomcat deployments where catalina.out was a
problem. Tomcat provides no rolling mechanism and over months the file can
become enormous.
Ralph
> On Feb 25, 2019, at 6:59 AM, Christopher Schultz
> <ch...@christopherschultz.net> wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Paul,
>
> On 2/24/19 04:46, Paul wrote:
>> Ghee, that was it, at least for getting the internal Tomcat logging
>> to go through Log4j.
>>
>> It didn't solve my static field thing, but that one I also figured
>> out. Not 100% sure my reasoning is correct, but I think it's due to
>> how classloading works in Servlets and thus in Tomcat (by default):
>> the classloaders for webapps do NOT delegate classloading requests
>> to the parent classloader (by default), thus the same class can be
>> loaded multiple times: in my case by the bootstrap/system
>> classloader and by the webapp classloader. And I guess depending on
>> how my webapp application code tries to access the static field on
>> the appender (don't have insight to this code, it's a 3rd party
>> framework), it doesn't find the one where the appender constructor
>> was called on, as my webapp code gets the class loaded by the
>> webapp classloader, whereas log4j seems to load all plugins when
>> log4j gets initialized the first time, which is for Tomcat internal
>> logging, which happens using the bootstrap/system classloaders.
>>
>> I tried adding the custom appenders to the WEB-INF/lib of my
>> webapp (while all other log4j jars live in the tomcat/lib), but
>> this doesn't work: the loading of log4j.properties in WEB-INF bombs
>> out, because log4j cannot find the custom appender.
>>
>> Once I added <Loader delegate="true"/> to the Context, things
>> started to work. As I'm only deploying this one webapp, this works
>> fine for me (or so it seems).
>>
>> If the above makes no sense or there are better ways to get things
>> going, I'd love to hear it
>
> So you want Tomcat's internal logging to go through log4j with a
> configuration file in CATALINA_HOME/lib/log4j.xml and then you also
> want your individual applications to use log4j with their own
> WEB-INF/classes/log4j.xml and both Tomcat and applications need a
> custom appender?
>
> No problem.
>
> Just put all of [ log4j JAR file, your custom appender JAR, log4j.xml]
> into CATALINA_HOME/lib *and also* into WEB-INF/lib/*.jar,
> WEB-INF/classes/log4j.xml and you should be good to go.
>
> Dumb question: why bother using log4j for Tomcat server-level logging?
> If you want to dump to the console, just configure Tomcat to dump to
> the console and forget all this additional work.
>
> - -chris
>
>> On 23/02/2019 07:40, Ralph Goers wrote:
>>> I just noticed that you said you have setenv.sh set to
>>> CLASSPATH=“$CATALINA_HOME/lib/*”
>>>
>>> That will find the jars but it won’t find your configuration
>>> file. You need to specify
>>> CLASSPATH=“$CATALINA_HOME/lib/*:${CATALINA_HOME}/lib”
>>>
>>> Note that lib is specified twice, once with “/*” after it and
>>> once with nothing.
>>>
>>> Ralph
>>>
>>>> On Feb 19, 2019, at 9:03 AM, Paul <pgbak...@gmail.com> wrote:
>>>>
>>>> Hi,
>>>>
>>>> Am trying to get Tomcat to log internal stuff through Log4j2,
>>>> but failing, no matter how I try.
>>>>
>>>> I've followed the instruction at
>>>> https://logging.apache.org/log4j/2.x/log4j-appserver/index.html
>>>> to no avail.
>>>>
>>>> I have a hard time understanding it, but maybe the problem is
>>>> that the Log4j2 code is executed in a different classLoader
>>>> than the tomcat code: I've enabled classloading debug output
>>>> (-Xlog:class+load*=debug) and the status logger
>>>> (-Dlog4j2.debug) and I see that all Tomcat code is executed by
>>>> one classloader:
>>>>
>>>> loader: [loader data: 0x000055f64b4557e0 of 'bootstrap']
>>>>
>>>> whereas the Log4j2 code seems executed by a different
>>>> classloader:
>>>>
>>>> loader: [loader data: 0x00005559e1327de0 for instance a
>>>> 'jdk/internal/loader/ClassLoaders$AppClassLoader'{0x00000000e10c9c20
> }]
>>>>
>>>>
>>>>
> I have this in setenv.sh and setenv.sh is working properly otherwise:
>>>> CLASSPATH="$CATALINA_HOME/lib/*"
>>>>
>>>> The $CATALINA_HOME/lib/ contains my log4j2-tomcat.properties
>>>> and the log4j-api and log4j-core jars (alongside slf4j-api.jar
>>>> and log4j-slf4j-impl.jar). (all version 2.11.x)
>>>>
>>>> I've also tried with the log4j-webon the classPath, didn't make
>>>> a difference. Tried the -Dlog4j.ignoreTCL=true options, no
>>>> luck.
>>>>
>>>> In the end, my main purpose it to log everything that happens
>>>> in the JVM through log4j2 to the console. I've also tried with
>>>> log4j-jul-2.11.1.jar, but couldn't get that going either: one
>>>> of the challenges I have is that I have a custom appender
>>>> plugin that needs to be loaded within the same classLoader
>>>> hierarchy as where my (single) webapp is running. In the end,
>>>> I'll be running only 1 webapp, deployed as a WAR in TOmcat and
>>>> the whole thing is dockerized, so neither Tomcat or the WAR are
>>>> ever restarted/redeployed: if something needs to change, we'll
>>>> deploy a new container image
>>>>
>>>> The output to the console of Tomcat is this: Using
>>>> CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME:
>>>> /usr/local/tomcat Using CATALINA_TMPDIR:
>>>> /usr/local/tomcat/temp Using JRE_HOME:
>>>> /usr/lib/jvm/zulu11.2.3-jdk11.0.1-linux_musl_x64 Using
>>>> CLASSPATH:
>>>> /usr/local/tomcat/lib/*:/usr/local/tomcat/bin/bootstrap.jar:/usr/loc
> al/tomcat/bin/tomcat-juli.jar
>>>>
>>>>
>>>>
> NOTE: Picked up JDK_JAVA_OPTIONS:
>>>> --add-opens=java.base/java.lang=ALL-UNNAMED
>>>> --add-opens=java.base/java.io=ALL-UNNAMED
>>>> --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED NOTE: Picked
>>>> up JDK_JAVA_OPTIONS:
>>>> --add-opens=java.base/java.lang=ALL-UNNAMED
>>>> --add-opens=java.base/java.io=ALL-UNNAMED
>>>> --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED DEBUG
>>>> StatusLogger Using ShutdownCallbackRegistry class
>>>> org.apache.logging.log4j.core.util.DefaultShutdownCallbackRegistry
>>>>
>>>>
> INFO StatusLogger Log4j appears to be running in a Servlet
>>>> environment, but there's no log4j-web module available. If you
>>>> want better web container support, please add the log4j-web JAR
>>>> to your web archive or server lib directory. INFO StatusLogger
>>>> Log4j appears to be running in a Servlet environment, but
>>>> there's no log4j-web module available. If you want better web
>>>> container support, please add the log4j-web JAR to your web
>>>> archive or server lib directory. DEBUG StatusLogger Took
>>>> 0.143572 seconds to load 208 plugins from
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 DEBUG
>>>> StatusLogger PluginManager 'Converter' found 44 plugins DEBUG
>>>> StatusLogger Starting OutputStreamManager
>>>> SYSTEM_OUT.false.false-1 DEBUG StatusLogger Starting
>>>> LoggerContext[name=799f7e29,
>>>> org.apache.logging.log4j.core.LoggerContext@ae13544]... DEBUG
>>>> StatusLogger Reconfiguration started for
>>>> context[name=799f7e29] at URI null
>>>> (org.apache.logging.log4j.core.LoggerContext@ae13544) with
>>>> optional ClassLoader: null INFO StatusLogger Log4j appears to
>>>> be running in a Servlet environment, but there's no log4j-web
>>>> module available. If you want better web container support,
>>>> please add the log4j-web JAR to your web archive or server lib
>>>> directory. DEBUG StatusLogger PluginManager
>>>> 'ConfigurationFactory' found 4 plugins INFO StatusLogger Log4j
>>>> appears to be running in a Servlet environment, but there's no
>>>> log4j-web module available. If you want better web container
>>>> support, please add the log4j-web JAR to your web archive or
>>>> server lib directory. INFO StatusLogger Log4j appears to be
>>>> running in a Servlet environment, but there's no log4j-web
>>>> module available. If you want better web container support,
>>>> please add the log4j-web JAR to your web archive or server lib
>>>> directory. DEBUG StatusLogger Missing dependencies for Yaml
>>>> support, ConfigurationFactory
>>>> org.apache.logging.log4j.core.config.yaml.YamlConfigurationFactory
>>>> is inactive INFO StatusLogger Log4j appears to be running in a
>>>> Servlet environment, but there's no log4j-web module available.
>>>> If you want better web container support, please add the
>>>> log4j-web JAR to your web archive or server lib directory.
>>>> DEBUG StatusLogger Missing dependencies for Json support,
>>>> ConfigurationFactory
>>>> org.apache.logging.log4j.core.config.json.JsonConfigurationFactory
>>>> is inactive INFO StatusLogger Log4j appears to be running in a
>>>> Servlet environment, but there's no log4j-web module available.
>>>> If you want better web container support, please add the
>>>> log4j-web JAR to your web archive or server lib directory.
>>>> DEBUG StatusLogger Using configurationFactory
>>>> org.apache.logging.log4j.core.config.ConfigurationFactory$Factory@4e
> 50c791
>>>>
>>>>
>>>>
> TRACE StatusLogger Trying to find [log4j2-test799f7e29.properties]
>>>> using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test799f7e29.properties]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.properties] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.properties] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2-test799f7e29.yml] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test799f7e29.yml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.yml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.yml] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2-test799f7e29.yaml] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test799f7e29.yaml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.yaml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.yaml] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2-test799f7e29.json] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test799f7e29.json] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.json] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.json] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2-test799f7e29.jsn] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test799f7e29.jsn] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.jsn] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.jsn] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2-test799f7e29.xml] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test799f7e29.xml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.xml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test799f7e29.xml] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2-test.properties] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test.properties] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test.properties] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test.properties] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2-test.yml] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test.yml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2-test.yml]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test.yml] using ClassLoader.getSystemResource(). TRACE
>>>> StatusLogger Trying to find [log4j2-test.yaml] using context
>>>> class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test.yaml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2-test.yaml]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test.yaml] using ClassLoader.getSystemResource(). TRACE
>>>> StatusLogger Trying to find [log4j2-test.json] using context
>>>> class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test.json] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2-test.json]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test.json] using ClassLoader.getSystemResource(). TRACE
>>>> StatusLogger Trying to find [log4j2-test.jsn] using context
>>>> class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test.jsn] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2-test.jsn]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test.jsn] using ClassLoader.getSystemResource(). TRACE
>>>> StatusLogger Trying to find [log4j2-test.xml] using context
>>>> class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2-test.xml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2-test.xml]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2-test.xml] using ClassLoader.getSystemResource(). TRACE
>>>> StatusLogger Trying to find [log4j2799f7e29.properties] using
>>>> context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2799f7e29.properties] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2799f7e29.properties] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find
>>>> [log4j2799f7e29.properties] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2799f7e29.yml] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2799f7e29.yml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2799f7e29.yml]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2799f7e29.yml] using ClassLoader.getSystemResource().
>>>> TRACE StatusLogger Trying to find [log4j2799f7e29.yaml] using
>>>> context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2799f7e29.yaml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2799f7e29.yaml]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2799f7e29.yaml] using ClassLoader.getSystemResource().
>>>> TRACE StatusLogger Trying to find [log4j2799f7e29.json] using
>>>> context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2799f7e29.json] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2799f7e29.json]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2799f7e29.json] using ClassLoader.getSystemResource().
>>>> TRACE StatusLogger Trying to find [log4j2799f7e29.jsn] using
>>>> context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2799f7e29.jsn] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2799f7e29.jsn]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2799f7e29.jsn] using ClassLoader.getSystemResource().
>>>> TRACE StatusLogger Trying to find [log4j2799f7e29.xml] using
>>>> context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2799f7e29.xml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2799f7e29.xml]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2799f7e29.xml] using ClassLoader.getSystemResource().
>>>> TRACE StatusLogger Trying to find [log4j2.properties] using
>>>> context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2.properties] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.properties]
>>>> using jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29
>>>> class loader. TRACE StatusLogger Trying to find
>>>> [log4j2.properties] using ClassLoader.getSystemResource().
>>>> TRACE StatusLogger Trying to find [log4j2.yml] using context
>>>> class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2.yml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.yml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.yml] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2.yaml] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2.yaml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.yaml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.yaml] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2.json] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2.json] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.json] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.json] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2.jsn] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2.jsn] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.jsn] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.jsn] using
>>>> ClassLoader.getSystemResource(). TRACE StatusLogger Trying to
>>>> find [log4j2.xml] using context class loader
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29. TRACE
>>>> StatusLogger Trying to find [log4j2.xml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.xml] using
>>>> jdk.internal.loader.ClassLoaders$AppClassLoader@799f7e29 class
>>>> loader. TRACE StatusLogger Trying to find [log4j2.xml] using
>>>> ClassLoader.getSystemResource(). ERROR StatusLogger No Log4j 2
>>>> configuration file found. Using default configuration (logging
>>>> only errors to the console), or user programmatically provided
>>>> configurations. Set system property 'log4j2.debug' to show
>>>> Log4j 2 internal initialization logging. See
>>>> https://logging.apache.org/log4j/2.x/manual/configuration.html
>>>> for instructions on how to configure Log4j 2 INFO StatusLogger
>>>> Log4j appears to be running in a Servlet environment, but
>>>> there's no log4j-web module available. If you want better web
>>>> container support, please add the log4j-web JAR to your web
>>>> archive or server lib directory.
>>>>
>>>>
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>>>>
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>>>
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