Exception thrown while using logback/slf4j

Question

I am using slf4j 1.6.2 api jar (tried using 1.6.1 as well) - logback version is 0.9.29 (core & classic). I am using jdk1.6 on ubuntu. The exception I received is copied

Answer 1

Adding the following dependencies might help :

  
      org.slf4j
      slf4j-api
      1.7.7
  

  
      org.slf4j
      jul-to-slf4j
      1.7.7
  

  
      org.slf4j
      jcl-over-slf4j
      1.7.7
  

  
      org.slf4j
      log4j-over-slf4j
      1.7.7
  

  
      org.slf4j
      slf4j-jdk14
      1.7.7