This is a repository that contains Java code samples for Google App Engine standard Java 11 environment.

Private Alpha To access the Java 11 Google App Engine standard runtime, you'll need to apply to become part of the App Engine Alpha program.

These samples use the Apache Maven build system. Before getting started, be sure to download and install it. When you use Maven as described here, it will automatically download the needed client libraries.

If you haven't already created a project, create one now. Projects enable you to manage all Google Cloud Platform resources for your app, including deployment, access control, billing, and services.

1. Open the Cloud Platform Console.
2. In the drop-down menu at the top, select Create a project.
3. Give your project a name.
4. Make a note of the project ID, which might be different from the project name. The project ID is used in commands and in configurations.

To switch to an Open JDK 11 in a Cloud shell session, you can use:

   sudo update-alternatives --config java
   # And select the usr/lib/jvm/java-11-openjdk-amd64/bin/java version.
   # Also, set the JAVA_HOME variable for Maven to pick the correct JDK:
   export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64

appengine-simple-jetty-main is a shared artifact that provides a Jetty Web Server for the servlet based runtime. Packaged as a jar, the Main Class will load a war file, passed as an argument, as the context root of the web application listening to port 8080. Some samples create a <sample-name>.war which is used as an argument in the App Engine app.yaml entrypoint field.