def handler = blockingHttpServer.expectAndBlock("/block")

        when:
        startBuild("compileJava")

        then:
        handler.waitForAllPendingCalls()

        then:
        cancelBuild()

        then:
        daemons.daemon.becomesIdle()

        and:
        pidFile().exists()
        def pid1 = pidFile().text.strip() as long
        new ProcessFixture(pid1).waitForFinish()

     * doesn't finnish in a timely manner a request for forceful stop will be issued ({@link #requestForcefulStop(String reason)}.</p>
     */
    void cancelBuild();

    /**
     * Returns a cancellation token used to communicate cancel requests to commands processed in this daemon.
     *