on_class</span>(<span class="ruby-identifier">app_name</span>,<span class="ruby-identifier">exception_class</span>,<span class="ruby-constant">PERMANENTLY_IGNORED_EXCEPTION</span>)
    <span class="ruby-keyword">return</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-string">&quot;Exception class already exist.&quot;</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- save_exception_class_in_config_file-source -->
            
          </div>

          

          
