| Dear App Engine developer, We're writing to let you know that the Java 7 runtime is deprecated as of December 13, 2017 in favor of the generally available Java 8 runtime. In accordance with the Google Cloud Platform deprecation policy, you will be able to migrate your projects off the Java 7 runtime over the next 12 months prior to the shutdown date of January 16, 2019. For more information, see the Java 7 runtime deprecation page. Please note the following incompatibilities between the Java 7 and Java 8 runtimes: For a full list of Java 7 and Java 8 incompatibilities, please see this guide. The Java 8 runtime has a number of benefits compared to earlier versions of Java on App Engine Standard, such as the removal of the Class Whitelist, availability of all public JDK APIs, and ability to use java.io.File, threads, and any Java libraries. For complete migration instructions and a list of key differences between App Engine Java 7 and Java 8 runtimes, which are based on the OpenJDK 7 and OpenJDK 8 runtimes respectively, please see our Java 8 migration page. Your projects listed below have been identified as using the Java 7 runtime: If you have any questions or require assistance, please do not hesitate to contact Google Cloud Support.
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