[2.4] Stop-Watch-Listener is broken

[sebastianblum]

Hello!

I got this stack trace with symfony 4 since upgrading to 2.4.

Error : Call to a member function start() on string
/vendor/jms/serializer-bundle/Serializer/StopwatchEventSubscriber.php:48
/vendor/jms/serializer/src/JMS/Serializer/EventDispatcher/EventDispatcher.php:88
/vendor/jms/serializer/src/JMS/Serializer/GraphNavigator.php:172
/vendor/jms/serializer/src/JMS/Serializer/JsonSerializationVisitor.php:97
/vendor/jms/serializer/src/JMS/Serializer/GraphNavigator.php:137
/vendor/jms/serializer/src/JMS/Serializer/Serializer.php:177
/vendor/jms/serializer/src/JMS/Serializer/Serializer.php:96
/vendor/phpoption/phpoption/src/PhpOption/Some.php:89
/vendor/jms/serializer/src/JMS/Serializer/Serializer.php:99
/vendor/friendsofsymfony/rest-bundle/Serializer/JMSSerializerAdapter.php:60
/vendor/friendsofsymfony/rest-bundle/View/ViewHandler.php:453
/vendor/friendsofsymfony/rest-bundle/View/ViewHandler.php:416
/vendor/friendsofsymfony/rest-bundle/View/ViewHandler.php:300
/vendor/friendsofsymfony/rest-bundle/Controller/ControllerTrait.php:116
/src/Controller/AccomplishmentController.php:209
/vendor/symfony/http-kernel/HttpKernel.php:149
/vendor/symfony/http-kernel/HttpKernel.php:66
/vendor/symfony/http-kernel/Kernel.php:190
/vendor/symfony/http-kernel/Client.php:68
/vendor/symfony/framework-bundle/Client.php:131
/vendor/symfony/browser-kit/Client.php:312
/tests/Controller/AccomplishmentControllerTest.php:176

[goetas]

Which symfony version are you using? can you tell me if the `debug.stopwatch` is defined ?

…

On 30 May 2018 at 09:31, Sebastian Blum ***@***.***> wrote: Hello! I got this stack trace with symfony 4 since upgrading to 2.4. Error : Call to a member function start() on string /vendor/jms/serializer-bundle/Serializer/StopwatchEventSubscriber.php:48 /vendor/jms/serializer/src/JMS/Serializer/EventDispatcher/ EventDispatcher.php:88 /vendor/jms/serializer/src/JMS/Serializer/GraphNavigator.php:172 /vendor/jms/serializer/src/JMS/Serializer/JsonSerializationVisitor.php:97 /vendor/jms/serializer/src/JMS/Serializer/GraphNavigator.php:137 /vendor/jms/serializer/src/JMS/Serializer/Serializer.php:177 /vendor/jms/serializer/src/JMS/Serializer/Serializer.php:96 /vendor/phpoption/phpoption/src/PhpOption/Some.php:89 /vendor/jms/serializer/src/JMS/Serializer/Serializer.php:99 /vendor/friendsofsymfony/rest-bundle/Serializer/ JMSSerializerAdapter.php:60 /vendor/friendsofsymfony/rest-bundle/View/ViewHandler.php:453 /vendor/friendsofsymfony/rest-bundle/View/ViewHandler.php:416 /vendor/friendsofsymfony/rest-bundle/View/ViewHandler.php:300 /vendor/friendsofsymfony/rest-bundle/Controller/ControllerTrait.php:116 /src/Controller/AccomplishmentController.php:209 /vendor/symfony/http-kernel/HttpKernel.php:149 /vendor/symfony/http-kernel/HttpKernel.php:66 /vendor/symfony/http-kernel/Kernel.php:190 /vendor/symfony/http-kernel/Client.php:68 /vendor/symfony/framework-bundle/Client.php:131 /vendor/symfony/browser-kit/Client.php:312 /tests/Controller/AccomplishmentControllerTest.php:176 — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#660>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAvaJ3SJ4czkDskObywikD78fUQm2zNoks5t3kq4gaJpZM4USve_> .

[sebastianblum]

here the list of composer licenses

symfony/asset                             v4.0.11   MIT           
symfony/browser-kit                       v4.0.11   MIT           
symfony/cache                             v4.0.11   MIT           
symfony/config                            v4.0.11   MIT           
symfony/console                           v4.0.11   MIT           
symfony/css-selector                      v4.0.11   MIT           
symfony/debug                             v4.0.11   MIT           
symfony/debug-bundle                      v4.0.11   MIT           
symfony/dependency-injection              v4.0.11   MIT           
symfony/doctrine-bridge                   v4.0.11   MIT           
symfony/dom-crawler                       v4.0.11   MIT           
symfony/dotenv                            v4.0.11   MIT           
symfony/event-dispatcher                  v4.0.11   MIT           
symfony/expression-language               v4.0.11   MIT           
symfony/filesystem                        v4.0.11   MIT           
symfony/finder                            v4.0.11   MIT           
symfony/flex                              v1.0.80   MIT           
symfony/form                              v4.0.11   MIT           
symfony/framework-bundle                  v4.0.11   MIT           
symfony/http-foundation                   v4.0.11   MIT           
symfony/http-kernel                       v4.0.11   MIT           
symfony/inflector                         v4.0.11   MIT           
symfony/intl                              v4.0.11   MIT           
symfony/monolog-bridge                    v4.0.11   MIT           
symfony/monolog-bundle                    v3.2.0    MIT           
symfony/options-resolver                  v4.0.11   MIT           
symfony/orm-pack                          v1.0.5    MIT           
symfony/phpunit-bridge                    v3.4.11   MIT           
symfony/polyfill-ctype                    v1.8.0    MIT           
symfony/polyfill-intl-icu                 v1.8.0    MIT           
symfony/polyfill-mbstring                 v1.8.0    MIT           
symfony/polyfill-php70                    v1.8.0    MIT           
symfony/polyfill-php72                    v1.8.0    MIT           
symfony/process                           v4.0.11   MIT           
symfony/profiler-pack                     v1.0.3    MIT           
symfony/property-access                   v4.0.11   MIT           
symfony/routing                           v4.0.11   MIT           
symfony/security                          v4.0.11   MIT           
symfony/security-bundle                   v4.0.11   MIT           
symfony/serializer                        v4.0.11   MIT           
symfony/stopwatch                         v4.0.11   MIT           
symfony/swiftmailer-bundle                v3.2.2    MIT           
symfony/templating                        v4.0.11   MIT           
symfony/translation                       v4.0.11   MIT           
symfony/twig-bridge                       v4.0.11   MIT           
symfony/twig-bundle                       v4.0.11   MIT           
symfony/validator                         v4.0.11   MIT           
symfony/var-dumper                        v4.0.11   MIT           
symfony/web-link                          v4.0.11   MIT           
symfony/web-profiler-bundle               v4.0.11   MIT           
symfony/web-server-bundle                 v4.0.11   MIT           
symfony/workflow                          v4.0.11   MIT           
symfony/yaml                              v4.0.11   MIT 

here the output of console

bin/console debug:container debug.stopwatch

Information for Service "debug.stopwatch"
=========================================

 ---------------- --------------------------------------- 
  Option           Value                                  
 ---------------- --------------------------------------- 
  Service ID       debug.stopwatch                        
  Class            Symfony\Component\Stopwatch\Stopwatch  
  Tags             kernel.reset (method: reset)           
  Public           no                                     
  Synthetic        no                                     
  Lazy             no                                     
  Shared           yes                                    
  Abstract         no                                     
  Autowired        no                                     
  Autoconfigured   no                                     
 ---------------- ---------------------------------------

[goetas]

Do you mind finding how `JMS\SerializerBundle\Serializer\StopwatchEventSubscriber` is instantiated in the container? the service definition is simple enough... ```xml <service id="jms_serializer.stopwatch_subscriber" class="JMS\SerializerBundle\Serializer\StopwatchEventSubscriber" public="true"> <tag name="jms_serializer.event_subscriber" /> <argument type="service" id="debug.stopwatch" /> </service> ``` It looks `debug.stopwatch` is null.... that does not make sense, if `debug.stopwatch` gets removed, `jms_serializer.stopwatch_subscriber` should throw an error, not silently use null

[sebastianblum]

thank you very much @goetas - I will debug it and create a demo app to reproduce.