The release notes of JaCoCo 0.8.13 [1] has the following to say:

JaCoCo now officially supports Java 23 and Java 24 (GitHub #1757, #1631, #1867).
Experimental support for Java 25 class files (GitHub #1807).

Now that the Java 25 feature set is frozen (and the initial release candidate is available), it would be great to finalize the Java 25 support and promote it from experimental to official support.

As per my own testing so far, 08.13 works just fine with projects using Java 25, so it might just be a matter of promoting it as-is.

[1] https://www.jacoco.org/jacoco/trunk/doc/changes.html

Scenario

• JaCoCo version: 0.8.13
• Operating system: Mac
• Tool integration: Gradle
• Description of your use case: Standard usage to measure test coverage

Current Behaviour

Java 25 support is marked as experimental

Wanted Behaviour

Official support for Java 25 should be added

Possible Workarounds

Experimental support version can be continued to be used