Came across log4j 1.2.15 dependancy problem

I was building a web application and in mid the build failed while downloading dependencies to log4j-1.2.15. The solution to overcome this was to exclude these dependencies. Here is how it was done.
My original pom.xml had this bit;

        
            log4j
            log4j
            1.2.15
        
        
            -
            -
            -
        

I added this within the dependency tag as exclusions.

    
      javax.mail
      mail
    
    
      javax.jms
      jms
    
    
      com.sun.jdmk
      jmxtools
    
    
      com.sun.jmx
      jmxri
    
  

The reason for this problem and the solution was nicely described in here