Products ARCore Reference ARCore for Java - API Reference There are two packages in the API. com.google.ar.core ARCore API implementation. com.google.ar.core.exceptions ARCore exceptions. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated December 15, 2017.