grails

Migrating from G3 to G4; I previously had integration tests running just fine in my project, using a locally-running ElasticSearch instance. Now my tests are failing:
```Execution failed for task ':compileIntegrationTestGroovy'.
&gt; org.elasticsearch.cluster.health.ClusterHealthStatus```
Anyone seen this before? I've looked through the full `--debug` output from Gradle and can't see any exceptions or any references to `ClusterHealthStatus`.

Looks like this was down to my locally-built .jar of my own (slightly modified) branch of the elasticsearch-plugin so I've switched back to the published version and the tests compile ok.