After many attempts I can't print the log to a file.

- Result on STDOUT:

<3-mar-2014 13.10.53 CET> <Notice> <WebLogicServer> <BEA-000360> <Server started in RUNNING mode>
0    [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] WARN  it.isp.swa.ProfiloSWA  - I love programming.
0    [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] ERROR it.isp.swa.ProfiloSWA  - I am programming.

The file MyLog.log is still not written.

- This is what I've done:

****************************
ListMan.ear
|
-\META-INF
|
- weblogic-application.xml
- logback.xml
- ConsoleAmministr.war
|
- \WEB-INF
|
weblogic.xml
logback.xml
|
- \lib
|
- logback-classic-1.1.1.jar
- logback-core-1.1.1.jar
- slf4j-api-1.7.6.jar
- \classes
|
logback.xml
- \it
|
- foo.java
- \resource
|
- logback.xml
***********************************************************
logback.xml:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>MyLog.log</file>
    <encoder>
      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
    </encoder>
 </appender>
  
  <logger name="it" level="TRACE"/>
 
  <root level="debug">
    <appender-ref ref="FILE" />
  </root>
</configuration>
***********************************************************
foo.java:
...
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
...
static final Logger LOG = LoggerFactory.getLogger(foo.class);
...
LOG.info("I am fine.");
LOG.warn("I love programming.");
LOG.error("I am programming.");
...
***********************************************************
weblogic.xml:

<?xml version="1.0" encoding="UTF-8"?>
<weblogic-web-app xmlns="http://xmlns.oracle.com/weblogic/weblogic-web-app" xmlns:j2ee="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd http://xmlns.oracle.com/weblogic/weblogic-web-app http://xmlns.oracle.com/weblogic/weblogic-web-app/1.2/weblogic-web-app.xsd">
  <jsp-descriptor>
    <keepgenerated>true</keepgenerated>
  </jsp-descriptor>
  <context-root>/ConsoleAmministr</context-root>
  <weblogic-version>10.3.5</weblogic-version>
  <container-descriptor>
  <prefer-application-packages>
    <package-name>org.slf4j</package-name>
  </prefer-application-packages>
  </container-descriptor>
</weblogic-web-app>
***********************************************************
weblogic-application.xml:

<?xml version="1.0" encoding="UTF-8"?>
<weblogic-application xmlns="http://www.bea.com/ns/weblogic/90">
    <prefer-application-packages>
        <package-name>org.slf4j.*</package-name>
        <package-name>antlr.*</package-name>
    </prefer-application-packages>
    
    <prefer-application-resources>
        <resource-name>org/slf4j/impl/StaticLoggerBinder.class</resource-name>
    </prefer-application-resources>    
    
</weblogic-application>
***********************************************************