def e = thrown(IllegalArgumentException)
        e.message == 'Could not convert abc'
    }

    def "reports failure to load worker implementation class"() {
        given:
        def cl = compileWithoutClasspath("CustomTestWorker", """
import ${RequestHandler.name}
class CustomTestWorker implements RequestHandler<Long, Object> {
    Object run(Long request) { throw new RuntimeException() }
}
""")

        when:

        result.toString() == "custom-result"

        cleanup:
        worker?.stop()
    }

    def "propagates failure to load worker implementation class"() {
        given:
        def cl = compileWithoutClasspath("CustomTestWorker", """
import ${RequestHandler.name}
class CustomTestWorker implements RequestHandler<Long, Object> {
    Object run(Long request) { throw new RuntimeException() }
}
""")

        when:

    }

    def cleanupSpec() {
        services.close()
    }

    File gradleUserHome() {
        return tmpDir.file("gradleUserHome")
    }

    Class<?> compileWithoutClasspath(String className, String classText) {
        return new GroovyClassLoader(getClass().classLoader).parseClass(classText, className)
    }

    Class<?> compileToDirectoryAndLoad(String className, String classText) {