Previously this plugin was developed by @johnrengelman and published under the ID com.github.johnrengelman.shadow before maintenance was transferred to the GradleUp organization to ensure future development, see GradleUp/shadow#908.

If you are still using the old plugin ID in your build script, we recommend to switch to the new plugin ID com.gradleup.shadow and update to the latest version to receive all the latest bug fixes and improvements.

We are still using the old johnrengelman version of the shadow plugin and should migrate to the new GradleUp version if possible. It looks like there is a GradleUp version that works with Java 8 and Gradle 8.3, which might be workable (I think we're currently using Gradle 7.5.1 in our GHAs).

https://github.com/GradleUp/shadow