Disable Logback in SpringBoot

Question

It appears Springboot autoconfigures itself to use Logback with Tomcat  I would like to disable this and use the one I provide in my classpath   The error message below      LoggerFactory is not a Logback LoggerContext but Logback is on the   classpath  Either remove Logback or the competing implementation    class org slf4j impl SimpleLoggerFactory  Object of class    org slf4j impl SimpleLoggerFactory  must be an instance of class   ch qos logback classic LoggerContext    lt  xml version  1 0  encoding  UTF-8   gt   lt project xmlns  http   maven apache org POM 4 0 0  xmlns xsi  http   www w3 org 2001 XMLSchema-instance      xsi schemaLocation  http   maven apache org POM 4 0 0 http   maven apache org xsd maven-4 0 0 xsd  gt       lt modelVersion gt 4 0 0 lt  modelVersion gt       lt parent gt           lt artifactId gt spring-boot-starter-parent lt  artifactId gt           lt groupId gt org springframework boot lt  groupId gt           lt version gt 1 0 1 RELEASE lt  version gt       lt  parent gt        lt groupId gt com fe lt  groupId gt       lt artifactId gt cloudapp lt  artifactId gt       lt version gt 1 0 0 lt  version gt       lt name gt Withinet-PaaS lt  name gt       lt description gt Develop your web applications in on our infrastructure and we will worry about administration and scalability of your app  lt  description gt        lt properties gt           lt java version gt 1 7 lt  java version gt           lt guava version gt 16 0 1 lt  guava version gt           lt project build sourceEncoding gt UTF-8 lt  project build sourceEncoding gt           lt project reporting outputEncoding gt UTF-8 lt  project reporting outputEncoding gt       lt  properties gt        lt dependencies gt       lt dependency gt           lt groupId gt com sun jersey lt  groupId gt           lt artifactId gt jersey-client lt  artifactId gt           lt version gt 1 8 lt  version gt       lt  dependency gt           lt dependency gt           lt groupId gt com withinet cloudapp lt  groupId gt       lt artifactId gt slave lt  artifactId gt       lt version gt 1 0 0 lt  version gt               lt  dependency gt           lt dependency gt               lt groupId gt org apache wicket lt  groupId gt               lt artifactId gt wicket-core lt  artifactId gt               lt version gt 6 15 0 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt org hibernate lt  groupId gt               lt artifactId gt hibernate-core lt  artifactId gt               lt version gt 4 3 0 Final lt  version gt           lt  dependency gt            lt dependency gt               lt groupId gt com google code gson lt  groupId gt               lt artifactId gt gson lt  artifactId gt               lt version gt 2 2 4 lt  version gt           lt  dependency gt            lt  -- Spring Boot -- gt            lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter lt  artifactId gt           lt  dependency gt            lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-test lt  artifactId gt               lt scope gt test lt  scope gt           lt  dependency gt            lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-web lt  artifactId gt           lt  dependency gt            lt  -- Hibernate validator -- gt            lt dependency gt               lt groupId gt javax validation lt  groupId gt               lt artifactId gt validation-api lt  artifactId gt               lt version gt 1 1 0 Final lt  version gt             lt  dependency gt           lt dependency gt               lt groupId gt org hibernate lt  groupId gt               lt artifactId gt hibernate-validator-annotation-processor lt  artifactId gt               lt version gt 4 1 0 Final lt  version gt           lt  dependency gt            lt  -- Guava -- gt            lt dependency gt               lt groupId gt com google guava lt  groupId gt               lt artifactId gt guava lt  artifactId gt               lt version gt   guava version  lt  version gt           lt  dependency gt            lt  -- Java EE -- gt            lt dependency gt               lt groupId gt javax inject lt  groupId gt               lt artifactId gt javax inject lt  artifactId gt               lt version gt 1 lt  version gt           lt  dependency gt            lt  --  Search -- gt           lt dependency gt               lt groupId gt org apache lucene lt  groupId gt               lt artifactId gt lucene-queryparser lt  artifactId gt               lt version gt 4 8 0 lt  version gt           lt  dependency gt            lt  --  Security           lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-security lt  artifactId gt           lt  dependency gt -- gt           lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-tomcat lt  artifactId gt               lt scope gt provided lt  scope gt           lt  dependency gt       lt  dependencies gt        lt build gt            lt plugins gt                lt  -- Spring Boot Maven -- gt                lt plugin gt                   lt groupId gt org springframework boot lt  groupId gt                   lt artifactId gt spring-boot-maven-plugin lt  artifactId gt                   lt configuration gt                       lt mainClass gt com withinet cloud Application lt  mainClass gt                       lt layout gt JAR lt  layout gt                   lt  configuration gt                   lt executions gt                       lt execution gt                           lt goals gt                               lt goal gt repackage lt  goal gt                           lt  goals gt                       lt  execution gt                   lt  executions gt               lt  plugin gt            lt  plugins gt       lt  build gt   lt  project gt

User · Answer

I resolved my problem through this below   compile  org mybatis spring boot mybatis-spring-boot-starter 1 3 0        exclude module   log4j-slf4j-impl      exclude module   logback-classic    compile  org springframework boot spring-boot-starter-web        exclude module   log4j-slf4j-impl      exclude module   logback-classic

User · Answer

Same problem for me   If you are using log4j2 In the Spring boot 2 4 0 I resolve below   lt dependency gt       lt groupId gt org springframework boot lt  groupId gt       lt artifactId gt spring-boot-starter lt  artifactId gt       lt exclusions gt           lt exclusion gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-logging lt  artifactId gt           lt  exclusion gt       lt  exclusions gt   lt  dependency gt    lt dependency gt       lt groupId gt org springframework boot lt  groupId gt       lt artifactId gt spring-boot-starter-log4j2 lt  artifactId gt       lt exclusions gt           lt exclusion gt               lt groupId gt org apache logging log4j lt  groupId gt               lt artifactId gt log4j-slf4j-impl lt  artifactId gt   lt -- exclude this artifactId          lt  exclusion gt       lt  exclusions gt   lt  dependency gt   After  Maven Build  gt  Clean  gt  Run  Work for me

User · Answer

The reason is  spring boot comes with logback as its default log configuration whereas camel uses log4j  Thats the reason of conflict  You have two options  either remove logback from spring boot as mentioned in above answers or remove log4j from camel    lt dependency gt               lt groupId gt org apache camel lt  groupId gt               lt artifactId gt camel-spring-boot-starter lt  artifactId gt               lt version gt   camel version  lt  version gt               lt exclusions gt                   lt exclusion gt                       lt groupId gt org slf4j lt  groupId gt                       lt artifactId gt slf4j-log4j12 lt  artifactId gt                   lt  exclusion gt               lt  exclusions gt           lt  dependency gt

User · Answer

To add a better  more generic solution in Gradle  all instances will be excluded    configurations       all  exclude module    spring-boot-starter-logging      From https   docs gradle org current userguide dependency management html

User · Answer

Just add logback xml configuration in your classpath and add all your configuration with root appender added  Once the Spring boot completes the bean loading  it will start logging based on your configuration

User · Answer

For gradle   You can see this solution at  http   www idanfridman com how-to-exclude-libraries-from-dependcies-using-gradle   Just need add exclude in configurations   configurations       providedRuntime     compile exclude group   ch qos logback

User · Answer

To add a solution in gradle   dependencies       compile   org springframework boot spring-boot-starter             exclude module    spring-boot-starter-logging            compile   org springframework boot spring-boot-starter-web             exclude module    spring-boot-starter-logging

User · Answer

Add exclusion to both the spring-boot-starter and spring-boot-starter-web to resolve the conflict    lt dependency gt     lt groupId gt org springframework boot lt  groupId gt     lt artifactId gt spring-boot-starter lt  artifactId gt     lt exclusions gt       lt exclusion gt         lt groupId gt org springframework boot lt  groupId gt         lt artifactId gt spring-boot-starter-logging lt  artifactId gt       lt  exclusion gt     lt  exclusions gt   lt  dependency gt    lt dependency gt     lt groupId gt org springframework boot lt  groupId gt     lt artifactId gt spring-boot-starter-web lt  artifactId gt     lt exclusions gt       lt exclusion gt         lt groupId gt org springframework boot lt  groupId gt         lt artifactId gt spring-boot-starter-logging lt  artifactId gt       lt  exclusion gt     lt  exclusions gt   lt  dependency gt

User · Answer

Find spring-boot-starter-test in your pom xml and modify it as follows        lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-test lt  artifactId gt           lt exclusions gt               lt exclusion gt                   lt artifactId gt commons-logging lt  artifactId gt                   lt groupId gt commons-logging lt  groupId gt               lt  exclusion gt           lt  exclusions gt           lt scope gt test lt  scope gt       lt  dependency gt    It fixed error like    Caused by  java lang IllegalArgumentException     LoggerFactory   is not a   Logback LoggerContext   but  Logback  is on the classpath   Either remove   Logback   or the competing implementation    class org apache logging slf4j Log4jLoggerFactory  loaded from file        M2 HOME  repository org apache logging log4j log4j-slf4j-impl 2 6 2 log4j-slf4j-impl-2 6 2 jar      If you are using WebLogic you will need to add    org slf4j    to prefer-application-packages in WEB-INF weblogic xml    org apache logging slf4j Log4jLoggerFactory

User · Answer

It might help if you say what your preferred logger is exactly  and what you did to try and install it  Anyway  Spring Boot tries to work with whatever is in the classpath  so if you don t want logback  take it off the classpath  There are instructions for log4j in the docs  but the same thing would apply to other supported logging systems  anything slf4j  log4j or java util

User · Answer

If this error occurred in SpringBoot when you are trying to use log4j2 then do these steps    Remove the jar from while packeging by adding this  excludeGroupIds log4j-slf4j-impl   excludeGroupIds  Find out the which library is depends on  logback-classic  by using command  mvn dependecy tree  Wherever you find it exclude it from the dependency    This error occurred because logback override the log4j2 changes  SO if you want to use log4j2 then you have to remove logback library and dependencies   Hope this will help someone

User · Answer

I do like this to solve my problem        lt dependency gt       lt groupId gt org springframework boot lt  groupId gt       lt artifactId gt spring-boot-starter-log4j lt  artifactId gt       lt exclusions gt           lt exclusion gt               lt groupId gt org slf4j lt  groupId gt               lt artifactId gt slf4j-log4j12 lt  artifactId gt           lt  exclusion gt       lt  exclusions gt   lt  dependency gt

User · Answer

Add this in your build gradle  configurations all       exclude group   org springframework boot   module   spring-boot-starter-tomcat      exclude group   org springframework boot   module   spring-boot-starter-logging      exclude group   org springframework boot   module   logback-classic

User · Answer

Using Gradle  amp  Lombok  here is the simplest configuration for Log4j2 that worked for me using the latest Spring Boot  2 4 1 at this time    build gradle   partial  configurations       compileOnly   extendsFrom annotationProcessor       compile exclude module   spring-boot-starter-logging      dependencies       implementation  org springframework boot spring-boot-starter-web      implementation  org springframework boot spring-boot-starter-security       implementation  org springframework boot spring-boot-starter-web-services      implementation  org springframework boot spring-boot-starter-log4j2       compileOnly  org projectlombok lombok               other dependencies           annotationProcessor  org projectlombok lombok      testImplementation  org springframework boot spring-boot-starter-test      testImplementation  org springframework security spring-security-test     I noticed you will get errors if you include spring-bbot-starter-log4j2 as a compileOnly dependency instead of as an implementation  Just annotate your classes with  Log4j2  or  Slf4j  and lombok will make available a log variable you can use for logging  As usual  provide a log4j2 xml configuration file in your  src main resources folder

User · Answer

Correct way to exclude default logging  and configure log4j for logging   lt dependency gt    lt groupId gt org springframework boot lt  groupId gt    lt artifactId gt spring-boot-starter lt  artifactId gt    lt exclusions gt        lt exclusion gt        lt groupId gt org springframework boot lt  groupId gt        lt artifactId gt spring-boot-starter-logging lt  artifactId gt        lt  exclusion gt    lt  exclusions gt   lt  dependency gt   Refer Spring Logging - How To  In gradle  I needed to do this with several other dependencies  configurations       all  exclude module    spring-boot-starter-logging      all  exclude module    logback-classic

User · Answer

This worked for me just fine  configurations       all  exclude module    spring-boot-starter-logging      But it wouldn t work out for maven users  All my dependencies was in libs gradle and I didn t want them in other files  So this problem was solved by adding exclude module    spring-boot-starter-logging in spring-boot-starter-data-jpa  spring-boot-starter-test and in practically everything with boot word   UPDATE  New project of mine needed an update  turns out spring-boot-starter-test 1 5 and older didn t have spring-boot-starter-logging  2 0 has it

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Following works for me   lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter lt  artifactId gt           lt exclusions gt               lt exclusion gt                   lt groupId gt org springframework boot lt  groupId gt                   lt artifactId gt spring-boot-starter-logging lt  artifactId gt               lt  exclusion gt           lt  exclusions gt       lt  dependency gt

User · Answer

I found that excluding the full spring-boot-starter-logging module is not necessary  All that is needed is to exclude the org slf4j slf4j-log4j12 module   Adding this to a Gradle build file will resolve the issue   configurations       runtime exclude group   org slf4j   module   slf4j-log4j12      compile exclude group   org slf4j   module   slf4j-log4j12      See this other StackOverflow answer for more details

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In my case  it was only required to exclude the spring-boot-starter-logging artifact from the spring-boot-starter-security one   This is in a newly generated spring boot 2 2 6 RELEASE project including the following dependencies    spring-boot-starter-security spring-boot-starter-validation spring-boot-starter-web  spring-boot-starter-test   I found out by running mvn dependency tree and looking for  ch qos logback   The spring boot related  lt dependencies gt  in my pom xml looks like this        lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-security lt  artifactId gt           lt exclusions gt               lt exclusion gt                   lt groupId gt org springframework boot lt  groupId gt                   lt artifactId gt spring-boot-starter-logging lt  artifactId gt               lt  exclusion gt           lt  exclusions gt                  lt  dependency gt        lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-log4j2 lt  artifactId gt       lt  dependency gt        lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-validation lt  artifactId gt       lt  dependency gt        lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-web lt  artifactId gt       lt  dependency gt        lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-devtools lt  artifactId gt           lt scope gt runtime lt  scope gt           lt optional gt true lt  optional gt       lt  dependency gt        lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-configuration-processor lt  artifactId gt           lt optional gt true lt  optional gt       lt  dependency gt        lt dependency gt           lt groupId gt org springframework boot lt  groupId gt           lt artifactId gt spring-boot-starter-test lt  artifactId gt           lt scope gt test lt  scope gt           lt exclusions gt               lt exclusion gt                   lt groupId gt org junit vintage lt  groupId gt                   lt artifactId gt junit-vintage-engine lt  artifactId gt               lt  exclusion gt           lt  exclusions gt       lt  dependency gt        lt dependency gt           lt groupId gt org springframework security lt  groupId gt           lt artifactId gt spring-security-test lt  artifactId gt           lt scope gt test lt  scope gt       lt  dependency gt      lt  dependencies gt

User · Answer

To add an exclusion for logback from Netbeans IDE    Access the  Projects explorer section for your project Proceed to  Dependencies as displayed below  Trace  spring-boot-starter-logging-X X X jar   Right click on the jar and select Exclude Dependency as shown below  This excludes the logback jar on the pom xml like this      lt dependency gt       lt groupId gt org springframework boot lt  groupId gt       lt artifactId gt spring-boot-starter-web lt  artifactId gt       lt exclusions gt           lt exclusion gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-logging lt  artifactId gt           lt  exclusion gt       lt  exclusions gt   lt  dependency gt

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In my case below exclusion works         lt dependency gt           lt groupId gt com xyz util lt  groupId gt           lt artifactId gt xyz-web-util lt  artifactId gt           lt exclusions gt               lt exclusion gt                   lt groupId gt org slf4j lt  groupId gt                   lt artifactId gt slf4j-log4j12 lt  artifactId gt               lt  exclusion gt           lt  exclusions gt       lt  dependency gt

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Adding exclusions was not enough for me  I had to provide a fake jar        lt dependency gt           lt groupId gt ch qos logback lt  groupId gt           lt artifactId gt logback-classic lt  artifactId gt           lt scope gt system lt  scope gt           lt systemPath gt   project basedir  empty jar lt  systemPath gt       lt  dependency gt

[spring-boot] Disable Logback in SpringBoot

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