buildscript { repositories { maven { url 'https://plugins.gradle.org/m2/' } } } apply plugin: 'application' apply plugin: 'java' compileJava { options.compilerArgs += ["--enable-preview"] } test { jvmArgs '--enable-preview' useJUnitPlatform() } sourceCompatibility = 13 targetCompatibility = 13 mainClassName = 'Main' repositories { mavenCentral() maven { url 'https://oss.sonatype.org/content/groups/public/' } } dependencies { implementation 'org.slf4j:slf4j-api:1.7.25' implementation 'org.slf4j:slf4j-jdk14:1.7.25' testImplementation 'org.junit.jupiter:junit-jupiter-api:5.5.2' testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.5.2' } application { applicationDefaultJvmArgs = ["--enable-preview"] }