Google has emailed me saying "Migrate your App Engine projects from the legacy SDK (appcfg)" for 3 of my projects. I don't use appcfg, I use mvn to deploy my software. I've 6 projects in total on GAE and have compared the pom files and build files and they are identical. I thought it was because I'm using an older appengine-api, but they are fairly up to date and all use the same version:
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-1.0-sdk</artifactId>
<version>1.9.58</version>
</dependency>
What I am missing here? Thanks Tim
So you basically want to know why would Google send you that email if your projects do not use appcfg?. It could be because:
1.- Just a reminder that you should migrate to the new SDK. If is not specified on the email something like "we have noticed that your project --- is using ..." then is probably just a general reminder.
2.- You have previous versions where you used the legacy SDK, and Google is detecting this.
3.- You are using a deprecated version of Java App Engine SDK-based plugin and have to migrate to the new version (less likely but since you are in fact using Maven wouldn't hurt to check).
Also, i know that you said you weren't using appcfg but here's a list of equivalents commands between appcfg and gcloud for extra information.