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Jetty provides support for several logging frameworks including SLF4J, Java Commons Logging (JCL), Java Util Logging (JUL), Log4j (including version 2), and Logback. This page includes examples of how to enable the associated modules for these different frameworks. These modules are designed to capture container/server logs; request logs and application logs need to be configured separately. Please note that enabling these modules provides typical and basic functionality for each framework; advanced implementations may require their own modules or additional configuration.
Enabling these frameworks in the Jetty distribution is as easy as activating any other module, by adding --add-to-start=<module name> to the start command for your server, such as:
[my-base]$ java -jar ../start.jar --add-to-start=logging-jetty
INFO : logging-jetty initialized in ${jetty.base}/start.d/logging-jetty.ini
INFO : resources transitive
INFO : Base directory was modifiedAs noted above, Jetty supports a wide array of logging technologies. If a particular logging framework requires additional jar files, Jetty will automatically download these as part of enabling the associated module and any dependent modules will be transitively enabled.
A list of the base Jetty logging modules by running java -jar <path-to-jetty.home>/start.jar --list-modules=logging,-internal.
System.err and System.out output.slf4j-impl which can be used by other logging frameworks.
If no other logging is configured, slf4j-simple is used.You can view a list of all the Jetty logging modules by running java -jar <path-to-jetty.home>/start.jar --list-modules=logging.
This will display all logging modules, including implementation and binding modules.
All these modules (with the exception of logging-jetty) arrange for the Jetty private logging API to be routed to the named technology to actually be logged.
For example, enabling the logging-log4j module will do several things:
slf4j-log4j logging binding so that any container code that uses the SLF4j API to also use the Log4j implementation via the Log4j API.So, after enabling logging-log4j, within the server container there are 3 logging APIs available: Jetty, SLF4J and Log4J.
But there is only a single logging implementation - Log4j; the 3 APIs act only as facades over the Log4j implementation.
Note that you can add additional APIs to this configuration.
For example, enabling the internal module jcl-slf4j would add in a Java Commons Logging facade that also would use the Log4j implementation via the SLF4J binding.
Most other top level logging modules work in the same way: logging-jcl, logging-jul, logging-slf4j, logging-log4j2 and logging-logback all bind their implementation via SLF4J.
Jetty uses the SLF4J api as a binding to provide logging information to additional frameworks such as Log4j or Logback.
It can also be used on it’s own to provide simple server logging.
To enable the SLF4J framework, you need to activate the logging-slf4j module.
By default, log files will be stored in ${jetty.base}/logs.
[my-base]$ java -jar ../start.jar --add-to-start=logging-slf4j
ALERT: There are enabled module(s) with licenses.
The following 1 module(s):
+ contains software not provided by the Eclipse Foundation!
+ contains software not covered by the Eclipse Public License!
+ has not been audited for compliance with its license
Module: slf4j-api
+ SLF4J is distributed under the MIT License.
+ Copyright (c) 2004-2013 QOS.ch
+ All rights reserved.
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Proceed (y/N)? y
INFO : slf4j-api transitively enabled
INFO : logging-slf4j initialized in ${jetty.base}/start.d/logging-slf4j.ini
MKDIR : ${jetty.base}/lib/slf4j
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-api/1.7.21/slf4j-api-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-api-1.7.21.jar
INFO : Base directory was modified
ERROR : Module logging-slf4j requires a `slf4j-impl` module from one of [slf4j-simple-impl, slf4j-logback, slf4j-jul, slf4j-jcl, slf4j-log4j2, slf4j-log4j]
ERROR : Unsatisfied module dependencies: logging-slf4j
Usage: java -jar $JETTY_HOME/start.jar [options] [properties] [configs]
java -jar $JETTY_HOME/start.jar --help # for more informationAs you probably noticed, the system gives an ERROR when trying to enable the logging-slf4j on it’s own.
The logging-slf4j module itself provides the SLF4J api, but as SLF4J is often used as a binding for other logging frameworks does not by default provide an implementation.
To enable the simple SLF4J implementation, we will also need to activate the slf4j-simple-impl module.
[my-base]$ java -jar ../start.jar --add-to-start=slf4j-simple-impl
INFO : slf4j-simple-impl initialized in ${jetty.base}/start.d/slf4j-simple-impl.ini
INFO : resources transitively enabled
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-simple/1.7.21/slf4j-simple-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-simple-1.7.21.jar
MKDIR : ${jetty.base}/resources
COPY : ${jetty.home}/modules/slf4j/simplelogger.properties to ${jetty.base}/resources/simplelogger.properties
MKDIR : ${jetty.base}/logs
INFO : Base directory was modified
[my-base]$ tree
.
├── lib
│ └── slf4j
│ ├── slf4j-api-1.7.21.jar
│ └── slf4j-simple-1.7.21.jar
├── logs
├── resources
│ └── simplelogger.properties
└── start.d
├── logging-slf4j.ini
└── slf4j-simple-impl.iniIt is possible to have the Jetty Server logging configured so that Log4j or Log4j2 controls the output of logging events produced by Jetty.
This is accomplished by configuring Jetty for logging to Apache Log4j via Slf4j and the Slf4j binding layer for Log4j.
Implementation of Log4j can be done by enabling the logging-log4j module.
By default, log files will be stored in ${jetty.base}/logs.
[my-base]$ java -jar ../start.jar --add-to-start=logging-log4j
ALERT: There are enabled module(s) with licenses.
The following 2 module(s):
+ contains software not provided by the Eclipse Foundation!
+ contains software not covered by the Eclipse Public License!
+ has not been audited for compliance with its license
Module: log4j-impl
+ Log4j is released under the Apache 2.0 license.
+ http://www.apache.org/licenses/LICENSE-2.0.html
Module: slf4j-api
+ SLF4J is distributed under the MIT License.
+ Copyright (c) 2004-2013 QOS.ch
+ All rights reserved.
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Proceed (y/N)? y
INFO : slf4j-api transitively enabled
INFO : log4j-impl transitively enabled
INFO : resources transitively enabled
INFO : slf4j-log4j transitively enabled
INFO : logging-log4j initialized in ${jetty.base}/start.d/logging-log4j.ini
MKDIR : ${jetty.base}/lib/slf4j
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-api/1.7.21/slf4j-api-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-api-1.7.21.jar
MKDIR : ${jetty.base}/resources
COPY : ${jetty.home}/modules/log4j/log4j.properties to ${jetty.base}/resources/log4j.properties
MKDIR : ${jetty.base}/lib/log4j
DOWNLOAD: http://central.maven.org/maven2/log4j/log4j/1.2.17/log4j-1.2.17.jar to ${jetty.base}/lib/log4j/log4j-1.2.17.jar
MKDIR : ${jetty.base}/logs
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-log4j12/1.7.21/slf4j-log4j12-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-log4j12-1.7.21.jar
INFO : Base directory was modified
[my-base]$ tree
.
├── lib
│ ├── log4j
│ │ └── log4j-1.2.17.jar
│ └── slf4j
│ ├── slf4j-api-1.7.21.jar
│ └── slf4j-log4j12-1.7.21.jar
├── logs
├── resources
│ └── log4j.properties
└── start.d
└── logging-log4j.iniOr, to enable Log4j2, simply enable the logging-log4j2 module.
By default, log files will be stored in ${jetty.base}/logs.
[my-base]$ java -jar ../start.jar --add-to-start=logging-log4j2
ALERT: There are enabled module(s) with licenses.
The following 2 module(s):
+ contains software not provided by the Eclipse Foundation!
+ contains software not covered by the Eclipse Public License!
+ has not been audited for compliance with its license
Module: log4j2-api
+ Log4j is released under the Apache 2.0 license.
+ http://www.apache.org/licenses/LICENSE-2.0.html
Module: slf4j-api
+ SLF4J is distributed under the MIT License.
+ Copyright (c) 2004-2013 QOS.ch
+ All rights reserved.
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Proceed (y/N)? y
INFO : slf4j-api transitively enabled
INFO : logging-log4j2 initialized in ${jetty.base}/start.d/logging-log4j2.ini
INFO : log4j2-api transitively enabled
INFO : resources transitively enabled
INFO : slf4j-log4j2 transitively enabled
INFO : log4j2-impl transitively enabled
MKDIR : ${jetty.base}/lib/slf4j
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-api/1.7.21/slf4j-api-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-api-1.7.21.jar
MKDIR : ${jetty.base}/lib/log4j
DOWNLOAD: http://central.maven.org/maven2/org/apache/logging/log4j/log4j-api/2.6.1/log4j-api-2.6.1.jar to ${jetty.base}/lib/log4j/log4j-api-2.6.1.jar
MKDIR : ${jetty.base}/resources
DOWNLOAD: http://central.maven.org/maven2/org/apache/logging/log4j/log4j-slf4j-impl/2.6.1/log4j-slf4j-impl-2.6.1.jar to ${jetty.base}/lib/log4j/log4j-slf4j-impl-2.6.1.jar
MKDIR : ${jetty.base}/lib/log4j2
DOWNLOAD: http://central.maven.org/maven2/org/apache/logging/log4j/log4j-core/2.6.1/log4j-core-2.6.1.jar to ${jetty.base}/lib/log4j2/log4j-core-2.6.1.jar
COPY : ${jetty.home}/modules/log4j2/log4j2.xml to ${jetty.base}/resources/log4j2.xml
MKDIR : ${jetty.base}/logs
INFO : Base directory was modified
[my-base]$ tree
.
├── lib
│ ├── log4j
│ │ ├── log4j-api-2.6.1.jar
│ │ └── log4j-slf4j-impl-2.6.1.jar
│ ├── log4j2
│ │ └── log4j-core-2.6.1.jar
│ └── slf4j
│ └── slf4j-api-1.7.21.jar
├── logs
├── resources
│ └── log4j2.xml
└── start.d
└── logging-log4j2.iniIt is possible to have the Jetty Server logging configured so that Logback controls the output of logging events produced by Jetty.
This is accomplished by configuring Jetty for logging to Logback, which uses Slf4j and the Logback Implementation for Slf4j.
To set up Jetty logging via Logback, enable the logging-logback module.
By default, log files will be stored in ${jetty.base}/logs.
[my-base]$ java -jar ../start.jar --add-to-start=logging-logback
ALERT: There are enabled module(s) with licenses.
The following 2 module(s):
+ contains software not provided by the Eclipse Foundation!
+ contains software not covered by the Eclipse Public License!
+ has not been audited for compliance with its license
Module: logback-impl
+ Logback: the reliable, generic, fast and flexible logging framework.
+ Copyright (C) 1999-2012, QOS.ch. All rights reserved.
+ This program and the accompanying materials are dual-licensed under
+ either:
+ the terms of the Eclipse Public License v1.0
+ as published by the Eclipse Foundation:
+ http://www.eclipse.org/legal/epl-v10.html
+ or (per the licensee's choosing) under
+ the terms of the GNU Lesser General Public License version 2.1
+ as published by the Free Software Foundation:
+ http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
Module: slf4j-api
+ SLF4J is distributed under the MIT License.
+ Copyright (c) 2004-2013 QOS.ch
+ All rights reserved.
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Proceed (y/N)? y
INFO : slf4j-api transitively enabled
INFO : logback-impl transitively enabled
INFO : slf4j-logback transitively enabled
INFO : logging-logback initialized in ${jetty.base}/start.d/logging-logback.ini
INFO : resources transitively enabled
MKDIR : ${jetty.base}/lib/slf4j
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-api/1.7.21/slf4j-api-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-api-1.7.21.jar
MKDIR : ${jetty.base}/lib/logback
DOWNLOAD: http://central.maven.org/maven2/ch/qos/logback/logback-core/1.1.7/logback-core-1.1.7.jar to ${jetty.base}/lib/logback/logback-core-1.1.7.jar
MKDIR : ${jetty.base}/resources
COPY : ${jetty.home}/modules/logback/logback.xml to ${jetty.base}/resources/logback.xml
MKDIR : ${jetty.base}/logs
DOWNLOAD: http://central.maven.org/maven2/ch/qos/logback/logback-classic/1.1.7/logback-classic-1.1.7.jar to ${jetty.base}/lib/logback/logback-classic-1.1.7.jar
INFO : Base directory was modified
[my-base]$ tree
.
├── lib
│ ├── logback
│ │ ├── logback-classic-1.1.7.jar
│ │ └── logback-core-1.1.7.jar
│ └── slf4j
│ └── slf4j-api-1.7.21.jar
├── logs
├── resources
│ └── logback.xml
└── start.d
└── logging-logback.iniAt this point Jetty is configured so that the Jetty server itself will log using Logback, using the Logback configuration found in {$jetty.base}/resources/logback.xml.
Log files will be stored in ${jetty.base}/logs.
It is possible to have the Jetty Server logging configured so that java.util.logging controls the output of logging events produced by Jetty.
This example demonstrates how to configuring Jetty for logging to java.util.logging via Slf4j and the Slf4j binding layer for java.util.logging.
By default, log files will be stored in ${jetty.base}/logs.
[my-base]$ java -jar ../start.jar --add-to-start=logging-jul
ALERT: There are enabled module(s) with licenses.
The following 1 module(s):
+ contains software not provided by the Eclipse Foundation!
+ contains software not covered by the Eclipse Public License!
+ has not been audited for compliance with its license
Module: slf4j-api
+ SLF4J is distributed under the MIT License.
+ Copyright (c) 2004-2013 QOS.ch
+ All rights reserved.
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Proceed (y/N)? y
INFO : jul-impl transitively enabled
INFO : slf4j-api transitively enabled
INFO : slf4j-jul transitively enabled
INFO : logging-jul initialized in ${jetty.base}/start.d/logging-jul.ini
INFO : resources transitively enabled
MKDIR : ${jetty.base}/etc
COPY : ${jetty.home}/modules/jul-impl/java-util-logging.properties to ${jetty.base}/etc/java-util-logging.properties
MKDIR : ${jetty.base}/logs
MKDIR : ${jetty.base}/lib/slf4j
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-api/1.7.21/slf4j-api-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-api-1.7.21.jar
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-jdk14/1.7.21/slf4j-jdk14-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-jdk14-1.7.21.jar
MKDIR : ${jetty.base}/resources
INFO : Base directory was modified
[my-base]$ tree
.
├── etc
│ └── java-util-logging.properties
├── lib
│ └── slf4j
│ ├── slf4j-api-1.7.21.jar
│ └── slf4j-jdk14-1.7.21.jar
├── logs
├── resources
└── start.d
└── logging-jul.iniJetty provides support of the Java Commons Logging (jcl) through the logging-jcl module, using Slf4j as a binding.
This is enabled by activating the logging-jcl module.
By default, log files will be stored in ${jetty.base}/logs.
[my-base]$ java -jar ../start.jar --add-to-start=logging-jcl
ALERT: There are enabled module(s) with licenses.
The following 2 module(s):
+ contains software not provided by the Eclipse Foundation!
+ contains software not covered by the Eclipse Public License!
+ has not been audited for compliance with its license
Module: jcl-impl
+ Log4j is released under the Apache 2.0 license.
+ http://www.apache.org/licenses/LICENSE-2.0.html
Module: slf4j-api
+ SLF4J is distributed under the MIT License.
+ Copyright (c) 2004-2013 QOS.ch
+ All rights reserved.
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Proceed (y/N)? y
INFO : slf4j-api transitively enabled
INFO : jcl-impl transitively enabled
INFO : resources transitively enabled
INFO : slf4j-jcl transitively enabled
INFO : logging-jcl initialized in ${jetty.base}/start.d/logging-jcl.ini
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-api/1.7.21/slf4j-api-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-api-1.7.21.jar
DOWNLOAD: http://central.maven.org/maven2/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar to ${jetty.base}/lib/jcl/commons-logging-1.1.3.jar
MKDIR: ${jetty.base}/logs
DOWNLOAD: http://central.maven.org/maven2/org/slf4j/slf4j-jcl/1.7.21/slf4j-jcl-1.7.21.jar to ${jetty.base}/lib/slf4j/slf4j-jcl-1.7.21.jar
INFO : Base directory was modified
[my-base]$ tree
.
├── lib
│ ├── jcl
│ │ └── commons-logging-1.1.3.jar
│ └── slf4j
│ ├── slf4j-api-1.7.21.jar
│ └── slf4j-jcl-1.7.21.jar
├── logs
├── resources
│ └── commons-logging.properties
└── start.d
└── logging-jcl.ini