[4.0] PHP Notice: Trying to get property 'id' of non-object in /application/libraries/src/Updater/Adapter/ExtensionAdapter.php

[PhilETaylor]

Steps to reproduce the issue

Joomla 4.x-dev

Ensure you have some PHP log output - mine here is a docker php-fpm log tail.

Install Akeeba Backup using Install From Url method with url

https://www.akeebabackup.com/download/akeeba-backup/7-2-1/pkg_akeeba-7-2-1-core-zip.zip

After its installed click "Home Dashboard"

Note that in the update checks the Checking extensions has failed

Expected result

No PHP Notices

Actual result

Ajax request with Notices

php_1 | 192.168.32.5 - 25/Jun/2020:15:27:10 +0000 "GET /administrator/index.php" 200
php_1 | 192.168.32.5 - 25/Jun/2020:15:27:10 +0000 "GET /administrator/index.php" 200
php_1 | NOTICE: PHP message: PHP Notice: Trying to get property 'id' of non-object in /application/libraries/src/Updater/Adapter/ExtensionAdapter.php on line 333
php_1 | 192.168.32.5 - 25/Jun/2020:15:27:10 +0000 "GET /index.php" 404
php_1 | 192.168.32.5 - 25/Jun/2020:15:27:10 +0000 "GET /index.php" 404
php_1 | NOTICE: PHP message: PHP Notice: Trying to get property 'id' of non-object in /application/libraries/src/Updater/Adapter/ExtensionAdapter.php on line 333
php_1 | 192.168.32.5 - 25/Jun/2020:15:27:10 +0000 "GET /administrator/index.php" 200
webserver_1 | 2020/06/25 15:27:10 [error] 9#9: *155 FastCGI sent in stderr: "PHP message: PHP Notice: Trying to get property 'id' of non-object in /application/libraries/src/Updater/Adapter/ExtensionAdapter.php on line 333PHP message: PHP Notice: Trying to get property 'id' of non-object in /application/libraries/src/Updater/Adapter/ExtensionAdapter.php on line 333" while reading response header from upstream, client: 192.168.32.1, server: , request: "GET /administrator/index.php?option=com_installer&view=update&task=update.ajax&198756102de4392ec83bef34a7d00709=1&cache_timeout=3600&eid=0&skip=212 HTTP/1.1", upstream: "fastcgi://192.168.32.2:9000", host: "127.0.0.1", referrer: "http://127.0.0.1/administrator/index.php"
php_1 | 192.168.32.5 - 25/Jun/2020:15:27:12 +0000 "GET /administrator/index.php" 200

System information (as much as possible)

safari on Mac

Additional comments

THE SECOND and subsequent times it loads ok, can only be replicated on first load

[chmst]

There was already a PR: #17481 a longer time ago. Which PHP Version is on your server?

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[wilsonge]

I can't reproduce this with the modern (gave me an unrelated error on install) or original reported akeeba version (either in UI or CLI).

[Quy]

#35376

[richard67]

It seems someone could reproduce it with some other 3rd party extensions, see the issue here recently reported: #35815 .

[richard67]

Closing as having a pull request. Please test #35822 . Thanks in advance.