Setting Up Your Development Environment

To set up your environment for developing on Java 8:

Install the latest release of Java 8.

See Java 8 Runtime Environment for a list of the supported versions.
Install and initialize the gcloud CLI for deploying and managing your apps. If you already have the gcloud CLI installed and initialized, run the gcloud components update command to update to the latest release.

By downloading, you agree to be bound by the Terms that govern use of the gcloud CLI for App Engine.
Install the gcloud component that includes the App Engine extension for Java 8.

If you used the apt or yum package managers to install the gcloud CLI, use those same package managers to install the gcloud component.

Otherwise, use the following command:
```
 gcloud components install app-engine-java
```

Installing optional tools

For access to code, samples, libraries, and tools in GitHub, install Git:

Install Git
Install Java 8 tools. You can use the Maven or Gradle plugins to build, deploy, and manage your Java 8 apps:
- Apache Maven and the App Engine Plugin
- Gradle and the App Engine Plugin
Install an IDE or editor to develop Java apps. Popular editors include:
- IntelliJ IDEA and/or Webstorm by JetBrains
  
  Use the Google-sponsored plugin for IntelliJ for access to helpful functions within the IntelliJ editor.
- Atom by GitHub
- Eclipse by Eclipse Foundation
  
  Use the Google-sponsored plugin for Eclipse for access to helpful functions within the Eclipse editor.
These editors (sometimes with the help of plugins) give you everything from syntax highlighting, intelli-sense, and code completion to fully integrated debugging capabilities.

Give permission to Cloud Build

When you deploy your app, App Engine uses Cloud Build to build the app into a container and deploy the container to the runtime. Cloud Build does not have permission to deploy Java 8 apps by default, so you need to give Cloud Build permission to deploy apps in your project. The builds are created in the app's region.