SLF4J + Logback does not log in WildFly

Question

I run web application in WildFly 8 and for some reason it does not log. I use SLF4J with LOGBACK. The log file is created on deploy but it is empty. I do not see my log stat

Answer 1

Wildfly is using slf4j as defult logging. you have to tell jboss not to use slf4j, i am using log4j. you can do this using below jboss-deployment-structure.xml

<jboss-deployment-structure>
  <deployment>
     <!-- exclude-subsystem prevents a subsystems deployment unit processors running on a deployment -->
     <!-- which gives basically the same effect as removing the subsystem, but it only affects single deployment -->
     <exclude-subsystems>
        <subsystem name="logging" />
    </exclude-subsystems>
  </deployment>
</jboss-deployment-structure>

Answer 2

WildFly adds slf4j as a default logging dependency Have you tried excluding the main implementation in jboss-deployment-structure.xml descriptor (It should go under the META-INF directory). This can be done with below lines:

<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
  <deployment>
    <exclusions>
      <module name="org.apache.commons.logging" />
      <module name="org.apache.log4j" />
      <module name="org.jboss.logging" />
      <module name="org.jboss.logging.jul-to-slf4j-stub" />
      <module name="org.jboss.logmanager" />
      <module name="org.jboss.logmanager.log4j" />
      <module name="org.slf4j" />
      <module name="org.slf4j.impl" />
    </exclusions>
  </deployment>
</jboss-deployment-structure>