build.gradle

group 'zse'
version '1.0-SNAPSHOT'

task wrapper(type: Wrapper) {
  gradleVersion = '3.3'
  distributionUrl = "https://services.gradle.org/distributions/gradle-$gradleVersion-all.zip"
}

subprojects {
    apply plugin: 'java'

    sourceCompatibility = 1.8

    repositories {
        mavenCentral()
    }

    dependencies {
        compile group: 'org.postgresql', name: 'postgresql', version: '42.0.0'
        testCompile group: 'junit', name: 'junit', version: '4.12'
    }
}

project(":Common") {
    sourceCompatibility = 1.7
}

project(":MainServer") {
    dependencies {
        compile project(":Common")
    }
}