I have been able to get this working but I have not yet added a Plugin to
validate the last part. I placed the log4j-api, log4j-core, and log4j-appserver
jars in the directory picked up by the bootstrap class loader along with the
log4j2-tomcat.xml. That successfully used log4j for logging. I then created a
web app that included the log4j-api, log4j-core, log4j-web and log4j-jcl jars
are dependencies. The log4j2.xml was placed into WEB-INF/classes. That was able
to configure properly. I could tell it was using the version of log4j in the
web app because LogManager initialized twice, once for tomcat and once for the
web app. It would have only initialized once if the same LogManager was used.
While debugging I found that the web app did not work without log4j-web. This
seemed to be because log4j-web uses the Configurator class which specifically
calls ConfigurationFactory.getConfiguration to search for a configuration if
one is not provided. Without it that search was not happening. There may be
other ways to get that to work but I didn’t investigate that.
Ralph
> On Feb 24, 2019, at 2:46 AM, Paul <pgbak...@gmail.com> 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
>
> Tnx for the help so far!
>
> Paul
>
> 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/local/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$Factory@4e50c791
>>> TRACE StatusLogger Trying to find [log4j2-test799f7e29.properties] using
>>> context class loader
>>> jdk.internal.loader.ClassLoaders$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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