build.gradle

import org.gradle.api.tasks.wrapper.Wrapper
import org.gradle.api.tasks.wrapper.Wrapper.DistributionType

plugins {
    id 'java'
    id 'idea'
}

tasks.withType(JavaCompile) {
    options.encoding = 'UTF-8'
}

sourceSets {
    main {
        java {
            srcDir 'src'
        }
    }
}

repositories {
    mavenCentral()
}

dependencies {
    compile 'commons-io:commons-io:2.5'
}

task wrapper(type: Wrapper) {
    distributionType DistributionType.ALL
    gradleVersion '4.4'
}

idea {
    module {
        downloadJavadoc = true
        downloadSources = true
    }
}

compileJava {
    options.compilerArgs << "-Xlint:all"
}