Some tiny improvements like fixing indentation

Author: tschuchortdev

build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.3.11'
+    ext.kotlin_version = '1.3.21'
 
     repositories {
         mavenCentral()
@@ -13,7 +13,7 @@ buildscript {
 
 plugins {
     id 'java'
-    id 'org.jetbrains.kotlin.jvm' version '1.3.11'
+    id 'org.jetbrains.kotlin.jvm' version '1.3.21'
 }
 
 apply plugin: 'kotlin'

src/main/kotlin/com/tschuchort/compiletesting/KotlinCompilation.kt

@@ -329,7 +329,7 @@ data class KotlinCompilation(
 		}
 
 		return convertKotlinExitCode(
-            K2JVMCompiler().execImpl(messageCollector, Services.EMPTY, k2JvmArgs))
+            K2JVMCompiler().exec(messageCollector, Services.EMPTY, k2JvmArgs))
 	}
 
 	/** Performs the 3rd compilation step to compile Kotlin source files */
@@ -349,7 +349,7 @@ data class KotlinCompilation(
 		}
 
         return convertKotlinExitCode(
-            K2JVMCompiler().execImpl(messageCollector, Services.EMPTY, k2JvmArgs))
+            K2JVMCompiler().exec(messageCollector, Services.EMPTY, k2JvmArgs))
 	}
 
 	/**

src/main/kotlin/com/tschuchort/compiletesting/Utils.kt

@@ -7,6 +7,7 @@ internal fun <E> MutableCollection<E>.addAll(vararg elems: E) = addAll(elems)
 
 internal fun getJavaHome(): File {
     val path = System.getProperty("java.home")
+        ?: System.getenv("JAVA_HOME")
         ?: throw IllegalStateException("no java home found")
 
     return File(path).also { check(it.isDirectory) }

src/test/kotlin/com/tschuchort/compiletesting/KotlinTestProcessor.kt

@@ -70,13 +70,13 @@ class KotlinTestProcessor : AbstractProcessor() {
 
 		if(annotations.isEmpty()) {
 			FileSpec.builder(GENERATED_PACKAGE, GENERATED_KOTLIN_CLASS_NAME + ".kt")
-				.addType(
-					TypeSpec.classBuilder(GENERATED_KOTLIN_CLASS_NAME).build()
-				).build()
-				.let { writeKotlinFile(it) }
+					.addType(
+						TypeSpec.classBuilder(GENERATED_KOTLIN_CLASS_NAME).build()
+					).build()
+					.let { writeKotlinFile(it) }
 
-		JavaFile.builder(GENERATED_PACKAGE, JavaTypeSpec.classBuilder(GENERATED_JAVA_CLASS_NAME).build())
-				.build().writeTo(processingEnv.filer)
+			JavaFile.builder(GENERATED_PACKAGE, JavaTypeSpec.classBuilder(GENERATED_JAVA_CLASS_NAME).build())
+					.build().writeTo(processingEnv.filer)
 		}
 
 		return false