testConfigurations = [configuration.myTestConfiguration]
    }
}
```

Alternatively, you can adjust or remove classpath attributes in the `eclipse.classpath.file.whenMerged { }` block.

==== Signing plugin defaults to `gpg` instead of `gpg2` when using the GPG command

Method <org.gradle.plugins.ide.api.FileContentMerger.whenMerged(groovy.lang.Closure)> has arguments/return type groovy.lang.Closure that is not Gradle public API or primitive or built-in JDK classes or Kotlin classes in (FileContentMerger.java:0)