Resolving Java Test Failures Due to Image Deprecations in CircleCI

Overview

Users may encounter issues with Java test suites failing on CircleCI due to recent machine image deprecations and changes to the default Java version. This article guides you through identifying the cause of such failures and provides a solution to ensure your Java tests run successfully.

Prerequisites

  • Access to CircleCI with a project set up for continuous integration.
  • Familiarity with CircleCI configuration files (config.yml).
  • Understanding of CircleCI executors and machine images.

Identifying the Issue

When Java test suites fail, it's crucial to verify the machine image used in the executor. An error message similar to the following might appear:

java java.lang.AssertionError: Exception thrown: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.IllegalStateException: Unable to load cache item

This could indicate an issue with the Java installation or compatibility with the machine image being used.

Solution

To resolve Java test suite failures:

  1. Check the executor definition in your .circleci/config.yml file to ensure you are not using the default alias, which may have changed due to image deprecations.
  2. Pin your executor to a specific image tag or use an alias for a specific image version. For example, replace image: default with image: ubuntu-2404:2024.05.1.
  3. If the issue persists with the updated tag, verify the Java version installed on the image. Recent updates may have shifted to a newer Java version that is incompatible with your tests.
  4. If necessary, install and switch to the Java version required by your tests. For example, if your suite is compatible with Java 11, ensure that version is installed and set as the default.

Additional Resources

By following these steps, you should be able to overcome issues related to Java test failures due to machine image deprecations on CircleCI. Ensure you are using a compatible Java version and a stable image tag to maintain the reliability of your continuous integration process.

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