refactor: replace Lombok with Jabel

Author: lppedd

build.gradle

@@ -1,20 +1,21 @@
 plugins {
     id 'java'
     id 'org.jetbrains.intellij' version '0.4.15'
-    id "io.freefair.lombok" version "4.1.6"
 }
 
 group 'com.github.lppedd'
 version '0.2.0'
 
-sourceCompatibility = 1.8
+sourceCompatibility = JavaVersion.VERSION_12
 
 repositories {
     mavenCentral()
+    maven { url "https://jitpack.io" }
 }
 
 dependencies {
     testCompile group: 'junit', name: 'junit', version: '4.12'
+    annotationProcessor 'com.github.bsideup.jabel:jabel-javac-plugin:0.2.0'
 }
 
 intellij {
@@ -34,3 +35,9 @@ patchPluginXml {
     changeNotes = new File("change_notes/${version.replace('.', '_')}.html").getText('UTF-8')
     pluginDescription = new File("plugin_description.html").getText('UTF-8')
 }
+
+compileJava {
+    options.compilerArgs = [
+            "--release", "8" // Avoid using Java 12 APIs
+    ]
+}

lombok.config

@@ -30,8 +30,6 @@
 import com.intellij.psi.util.PsiModificationTracker;
 import com.intellij.util.containers.ContainerUtil;
 
-import lombok.var;
-
 /**
  * @author Edoardo Luppi
  */
@@ -102,7 +100,7 @@ private Collection<Angular2Module> findSourceModules() {
         JSImplicitElementProvider.class,
         elementProvider -> {
           if (elementProvider.isValid()) {
-            final Angular2Module module = Angular2EntitiesProvider.getModule(elementProvider);
+            final var module = Angular2EntitiesProvider.getModule(elementProvider);
             ContainerUtil.addIfNotNull(modules, module);
           }