I understand your question is regarding the size discrepancy in your application deployments on App Engine (GAE). There are a number of reasons which may contribute to the different sizes, particularly in the past, the size difference in the builds for the same Java application code has been seen to relate to different implementations of the functions (i.e. deploy) and the tools in each SDK and the plugins. Hence, to understand better the cause may require reviewing the differences between the plugins used and the App Engine SDK versions, and how the changes may have applied to your application.
For more specific information about your applications and why the Application sizes differed, I recommend that you contact the GCP Support engineers[1][2] so that the specific App Engine versions can be evaluated to determine exactly and obtain more specific information about the cause. [1]https://cloud.google.com/support-hub [2]https://developers.google.com/issue-tracker/#public_users -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/bedb786e-10b6-4719-a5de-b7d7ebdaedf9%40googlegroups.com.