subprojects {
    apply plugin: 'java'

    repositories {
        mavenCentral()
    }

    ext {
        slf4jVersion = '1.7.21'
    }

    dependencies {
        compile group: 'org.slf4j', name: 'slf4j-api', version: slf4jVersion
    }

    compileJava {
        sourceCompatibility = 1.8
        targetCompatibility = 1.8
    }
}