}
    private <T extends WorkParameters> AsyncWorkCompletion submitWork(Class<? extends WorkAction<T>> workActionClass, Action<? super T> parameterAction, WorkerSpec workerSpec, WorkerFactory workerFactory) {
        Class<T> parameterType = isolationScheme.parameterTypeFor(workActionClass);
        T parameters = (parameterType == null) ? null : instantiator.newInstance(parameterType);
        if (parameters != null) {

            task runInDaemon(type: WorkerTask) {
                isolationMode = 'processIsolation'
                workActionClass = BlockingWorkAction.class
            }

            task startNewDaemon(type: WorkerTask) {
                isolationMode = 'processIsolation'
                workActionClass = BlockingWorkAction.class
            }

            task runAllDaemons {

            import org.gradle.test.TestWork
            ${buildFile.text}
        """
    }

    void withRunnableClassThatFails() {
        workActionClass.text = workActionClass.text.replace('// DO NOTHING', 'throw new IllegalStateException("something went horribly wrong");')
    }

                def projectCounter = i
                def runInWorker = tasks.register("runInWorker" + i, WorkerTask) {
                    isolationMode = 'processIsolation'
                    workActionClass = AlternateWorkAction.class
                    additionalForkOptions = {
                        jvmArgs += ['-DprojectCounter=' + projectCounter, '-DbuildCounter=' + buildCounter]
                    }
                }