build.gradle

allprojects {
    apply plugin: 'java'
    group = "io.github.mainyf"
    version = "1.0"
    sourceCompatibility = 1.8
    targetCompatibility = 1.8
    [compileJava, compileTestJava, javadoc]*.options*.encoding = "UTF-8"

    repositories {
        mavenCentral()
        maven {
            name = "snapshots-repo"
            url = uri("https://oss.sonatype.org/content/repositories/snapshots")
        }
    }
    dependencies {
        compile 'com.google.guava:guava:27.1-jre'
        compile("mysql:mysql-connector-java:8.0.15")
        compileOnly("org.projectlombok:lombok:1.18.6")
        annotationProcessor("org.projectlombok:lombok:1.18.6")
        testCompile("junit:junit:4.12")
    }
}

subprojects {

}

task allJar(type: org.gradle.jvm.tasks.Jar, dependsOn: classes) {
    classifier = 'all'
    subprojects.each { subproject ->
        from subproject.sourceSets.main.output
//        configurations = [subproject.configurations.compile]
    }
}