build.gradle

group = 'com.example.appengine'   // Generated output GroupId
version = '1.0-SNAPSHOT'          // Version in generated output

apply plugin: 'java'
apply plugin: 'war'
apply plugin: 'org.akhikhl.gretty'
apply plugin: 'com.google.cloud.tools.appengine'
apply plugin: "net.ltgt.apt"
apply plugin: "net.ltgt.apt-idea"

sourceCompatibility = 1.8
targetCompatibility = 1.8

compileJava.options.encoding = "UTF-8"
compileTestJava.options.encoding = "UTF-8"

ext {
    appengineVersion = "1.9.60"
    slim3Version = "1.0.17-SNAPSHOT"
}

buildscript {      // Configuration for building
    repositories {
        jcenter()      // Bintray's repository - a fast Maven Central mirror & more
        mavenCentral()
        maven {
            url "https://plugins.gradle.org/m2/"
        }
    }
    dependencies {
        classpath 'com.google.cloud.tools:appengine-gradle-plugin:+'
        classpath 'org.akhikhl.gretty:gretty:+'
        classpath "net.ltgt.gradle:gradle-apt-plugin:0.13"
    }
}

repositories {   // repositories for JARs you access in your code
    maven {
        url 'https://maven-central.storage.googleapis.com'             // Google's mirror of Maven Central
    }
    jcenter()
    mavenCentral()
    maven {
        url "http://slim3.github.com/slim3/"
    }
}

dependencies {
    providedCompile 'javax.servlet:javax.servlet-api:3.1.0'
    providedCompile "com.google.appengine:appengine:${appengineVersion}"

    // Add your dependencies here.
    compile "com.google.appengine:appengine-endpoints:${appengineVersion}" //add this line to avoid upper comment
    compile "com.google.appengine:appengine-endpoints-deps:${appengineVersion}" //works also without this line
    compile 'javax.servlet:servlet-api:2.5'
    compile fileTree(include: ['*.jar'], dir: 'libs')

    testCompile group: 'junit', name: 'junit', version: '4.12'
    testCompile group: 'com.google.appengine', name: 'appengine-local-runtime', version: appengineVersion
    testCompile group: 'com.google.appengine', name: 'appengine-api-stubs', version: appengineVersion
    testCompile group: 'com.google.appengine', name: 'appengine-api-1.0-sdk', version: appengineVersion
    testCompile group: 'com.google.appengine', name: 'appengine-api-labs', version: appengineVersion

    apt "org.slim3:slim3-gen-jsr269:${slim3Version}"
    compile "org.slim3:slim3:${slim3Version}"

    //compileOnly 'org.projectlombok:lombok:1.16.20'
    //apt "org.projectlombok:lombok:1.16.20"
}

gretty {
    httpPort = 8080
    contextPath = '/'
    servletContainer = 'jetty9'  // What App Engine Flexible uses
}

appengine {
    deploy {   // deploy configuration
        stopPreviousVersion = true  // default - stop the current version
        promote = true              // default - & make this the current version
    }

    run {
        jvmFlags = ["-Dappengine.fullscan.seconds=5"]//enable hot reloading
//        jvmFlags = ['-Xdebug', '-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000']
    }
}

//ant task
ant.importBuild 'build.xml'

task updateSlim3Gen << {
    def file = project.configurations["apt"].files.find { it.name.contains("slim3-gen-js269") }
    if (file) {
        copy {
            from file
            into outFile
        }
    }
}