build.gradle

/*
 * Copyright 2016-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 */

// JDK11+ does not bundle JavaFx and the plugin for JavaFx support is compiled with class file version 55.0 (JDK 11)
if (JavaVersionKt.javaVersionMajor >= 11) {
    apply plugin: 'org.openjfx.javafxplugin'

    javafx {
        version = javafx_version
        modules = ['javafx.controls']
        configuration = 'compile'
    }
}

task checkJdk8() {
    // only fail w/o JDK_18 when actually trying to test, not during project setup phase
    doLast {
        if (!System.env.JDK_18) {
            throw new GradleException("JDK_18 environment variable is not defined. " +
                    "Can't run JDK 8 compatibility tests. " +
                    "Please ensure JDK 8 is installed and that JDK_18 points to it.")
        }
    }
}

task jdk8Test(type: Test, dependsOn: [compileTestKotlin, checkJdk8]) {
    classpath = files { test.classpath }
    testClassesDirs = files { test.testClassesDirs }
    executable = "$System.env.JDK_18/bin/java"
}

// Run these tests only during nightly stress test
jdk8Test.onlyIf { project.properties['stressTest'] != null }
build.dependsOn jdk8Test