simplify

build.gradle

-import groovy.json.JsonOutput
-
 plugins {
   id "com.diffplug.spotless"
   id "com.github.spotbugs"
@@ -46,7 +44,8 @@ jar {
     def versionPath = "/resources/main/version.json"
     def versionFile = new File(project.buildDir.toString() + versionPath)
     def details = versionDetails()
-    versionFile.write(JsonOutput.prettyPrint(JsonOutput.toJson(details)))
+    def json = groovy.json.JsonOutput.toJson(details)
+    versionFile.write(groovy.json.JsonOutput.prettyPrint(json))
   }
 }