def args = allArgs
        args.remove("--no-daemon")

        usingToolingConnection(workingDir) { connection ->
            connection.newBuild()
                .withArguments(args)
                .addJvmArguments(jvmArgs)
                .setStandardOutput(new TeeOutputStream(output, System.out))
                .setStandardError(new TeeOutputStream(error, System.err))
                .run()
        }

    }

    def "JVM arguments have precedence over system properties"() {
        when:
        runTask {
            withSystemProperties('customKey' : 'syspropValue')
            addJvmArguments('-DcustomKey=jvmargValue')
        }

        then:
        hasSystemProperty('customKey', 'jvmargValue')
    }

    def "Cannot modify immutable system properties"() {
        setup:

            def args = executer.allArgs
            args.remove("--no-daemon")

            connection.newTestLauncher()
                .withJvmTestClasses(testClasses)
                .addJvmArguments(executer.jvmArgs)
                .withArguments(args)
                .setStandardOutput(new TeeOutputStream(output, System.out))
                .setStandardError(new TeeOutputStream(error, System.err))