Don't swallow exceptions in code

[timfox]

JMSServerManagerImpl:

private void unbindJNDI(Map<String, List<String>> param)
   {
      for (List<String> elementList : param.values())
      {
         for (String key : elementList)
         {
            try
            {
               context.unbind(key);
            }
            catch (Exception e)
            {
               log.warn("Impossible to unbind key " + key + " from JNDI");
            }
         }
      }
   }

This is actually failing in Stomp test because a NPE is thrown because the context is null, but this is swallowed