code: public void setDefaultBootstrapContext(CloneableBootstrapContext bc)
     {
        if (trace)
           log.tracef("Default BootstrapContext: %s", bc);
  
        String currentName = null;
  
        if (defaultBootstrapContext != null)
           currentName = defaultBootstrapContext.getName();
  
        defaultBootstrapContext = bc;
  
        if (bc != null)
        {
           bootstrapContexts.put(bc.getName(), bc);
        }
        else if (currentName != null)
        {
           bootstrapContexts.remove(currentName);
        }
     }
docs: Set the default bootstrap context
  @param bc The bootstrap context