re-set build.gradle to before kotlin-for-jvm, isolating upgrade of …

…gradle

build.gradle

@@ -13,16 +13,12 @@ buildscript {
     }
 }
 
-plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.8.0'
-}
-
 /**
  * If `android` is true, the project will be configured as an Android rather than a Java library. This isn't used
  * for building archives (such as an APK), but is useful for performing Android checks like lint.
  */
 if (!project.hasProperty("android")) {
-//    apply plugin: 'java'
+    apply plugin: 'java'
     apply plugin: 'checkstyle'
     apply plugin: 'jacoco'
     apply plugin: 'me.champeau.jmh'
@@ -52,15 +48,6 @@ compileTestJava {
     options.compilerArgs << "-Xlint:deprecation"
 }
 
-compileKotlin {
-    kotlinOptions.jvmTarget = '1.8'
-}
-
-compileTestKotlin {
-    kotlinOptions.jvmTarget = '1.8'
-}
-
-
 targetCompatibility = '1.8'
 sourceCompatibility = '1.8'
 
@@ -187,4 +174,4 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'net.sf.kxml:kxml2:2.3.0'
     testImplementation 'org.hamcrest:hamcrest-all:1.3'
-}
+}