Cloudera Docs

Java Requirements

Cloudera Base on premises comprises Cloudera Manager and Cloudera Runtime services. To successfully upgrade the service, you need the following Java prerequisites.

Supported JDKs

Please see the Cloudera Support Matrix for detailed information about supported JDKs.

As Cloudera transitions to JDK 17 as its default OpenJDK release, the upgrade flow assumes that you must upgrade the existing OpenJDK from the current release to JDK 17 before starting the upgrade process, unless specifically stated otherwise.

Supported JDK versions

  • The current version of OpenJDK 17 is 17.0.16 (as of September 2025).
  • For OpenJDK, Oracle JDK, or Azul JDK, Cloudera requires a minimum release of 17.0.7. Use the latest releases, as Cloudera supports them and prefers them, even if documentation does not list them.