cleanup

build.gradle

 plugins {
   id "application"
-  id "java"
+  id "com.diffplug.gradle.spotless" version "${spotlessVersion}"
   id "com.github.johnrengelman.shadow" version "5.2.0"
-  id "net.ltgt.apt-eclipse" version "0.21"
+  id "com.github.spotbugs" version "${spotbugsVersion}"
+  id "com.star-zero.gradle.githook" version "${githooksVersion}"
   id "eclipse-wtp"
   id "jacoco"
-  id "com.star-zero.gradle.githook" version "${githooksVersion}"
-  id "com.github.spotbugs" version "${spotbugsVersion}"
-  id "com.diffplug.gradle.spotless" version "${spotlessVersion}"
+  id "java"
+  id "net.ltgt.apt-eclipse" version "0.21"
 }
 
 sourceCompatibility = JavaVersion.VERSION_11