stage('Build / Unit Test') {
            String jdkName = jenkinsEnv.jdkFromVersion(buildOs, buildJdk)
            String mvnName = jenkinsEnv.mvnFromVersion(buildOs, buildMvn)
            try {
                withEnv(["JAVA_HOME=${ tool "$jdkName" }",
                         "PATH+MAVEN=${ tool "$jdkName" }/bin:${tool "$mvnName"}/bin",
                         "MAVEN_OPTS=-Xms2g -Xmx4g -Djava.awt.headless=true"]) {                   

            started = false
            container.stop()
            monitor.interrupt()
        }
    }

    GradleInContainer withEnv(Map<String, ?> stringMap) {
        Map<String, String> env = [:]
        stringMap.each { k, v -> env[k] = v?.toString() }
        container.withEnv(env)
        this
    }

    ExecutionResult succeeds(String... tasks) {
        executer.withTasks(tasks)
        executer.run()

        stage('Build / Unit Test') {
            String jdkName = jenkinsEnv.jdkFromVersion(buildOs, buildJdk)
            String mvnName = jenkinsEnv.mvnFromVersion(buildOs, buildMvn)
            try {
                withEnv(["JAVA_HOME=${ tool "$jdkName" }",
                         "PATH+MAVEN=${ tool "$jdkName" }/bin:${tool "$mvnName"}/bin",
                         "MAVEN_OPTS=-Xms2g -Xmx4g -Djava.awt.headless=true"]) {                   

        }
        result
    }

    @CompileDynamic
    private OutputScrapingExecutionResult executeInContainer() {
        def invocation = buildInvocation()
        container.withEnv(invocation.environmentVars.collectEntries { k, v -> [k, v]})
        def containerResult = container.execute(["/gradle-under-test/bin/gradle", *invocation.args] as String[])
        def result