return syscall.EINVAL
	}

	if err := setKeepAlive(c.fd, config.Enable); err != nil {
		return &OpError{Op: "set", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
	}
	if err := setKeepAliveIdle(c.fd, config.Idle); err != nil {
		return &OpError{Op: "set", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
	}
	if err := setKeepAliveInterval(c.fd, config.Interval); err != nil {

	// running P (returned by pidleget) may add a timer at any time, so its mask
	// must be set. An idle P (passed to pidleput) cannot add new timers while
	// idle, so if it has no timers at that time, its mask may be cleared.
	//
	// Thus, we get the following effects on timer-stealing in findrunnable:
	//
	//   - Idle Ps with no timers when they go idle are never checked in findrunnable
	//     (for work- or timer-stealing; this is the ideal case).

        settingsFile << """
            include '${ANNOTATION_PROCESSOR_PROJECT_NAME}'
        """
        writeAnnotationProcessorProject()
    }

    void "daemon is gracefully removed if it is killed while idle in between builds"() {
        given:
        buildFile << """
            plugins {
                id 'java'
            }

            ${dependsOnPidCapturingAnnotationProcessor}

        } catch (UnsupportedOperationException e) {
            return -1;
        }
    }

    /**
     * Select idle daemon clients to stop.
     *
     * @param selectionFunction Gets all idle daemon clients, daemons of returned clients are stopped
     */
    @VisibleForTesting

        final Pair<Collection<DaemonInfo>, Collection<DaemonInfo>> idleBusy = partitionByState(daemonRegistry.getAll(), Idle);
        final Collection<DaemonInfo> idleDaemons = idleBusy.getLeft();
        final Collection<DaemonInfo> busyDaemons = idleBusy.getRight();

        // Check to see if there are any compatible idle daemons
        DaemonClientConnection connection = connectToIdleDaemon(idleDaemons, constraint);

    now no longer re-use connections for the probe. This behavior was changed to match probing behavior of Kubernetes',
    and may also improve probe reliability for applications using short idle timeouts.

    As a result, your application may see more connections (but the same number of HTTP requests) from probes.
    For most applications, this will not be noticeably different.

		if !c.NeedIdleMarkWorker() {
			t.Fatalf("expected to need idle mark workers: i=%d", i)
		}
		if !c.AddIdleMarkWorker() {
			t.Fatalf("expected to be able to add an idle mark worker: i=%d", i)
		}
	}
	if c.NeedIdleMarkWorker() {
		t.Fatalf("expected to not need idle mark workers")
	}
	if c.AddIdleMarkWorker() {
		t.Fatalf("expected to not be able to add an idle mark worker")
	}
	for i := 0; i < workers; i++ {

2019-10-03T09:33:08.990+0200 [DEBUG] [org.gradle.execution.plan.DefaultPlanExecutor] Task worker [Thread[main,5,main]] finished, busy: 0.0 secs, idle: 0.021 secs
\u001B[0K
\u001B[0K

// timer precision to keep the timer error acceptable.
const osRelaxMinNS = 0

var haveHighResSleep = true

// osRelax is called by the scheduler when transitioning to and from
// all Ps being idle.
func osRelax(relax bool) {}

// enableWER is called by setTraceback("wer").
// Windows Error Reporting (WER) is only supported on Windows.
func enableWER() {}

// winlibcall is not implemented on non-Windows systems,

	return t.closeIdle
}

func (t *Transport) QueueForIdleConnForTesting() {
	t.queueForIdleConn(nil)
}

// PutIdleTestConn reports whether it was able to insert a fresh
// persistConn for scheme, addr into the idle connection pool.
func (t *Transport) PutIdleTestConn(scheme, addr string) bool {
	c, _ := net.Pipe()
	key := connectMethodKey{"", scheme, addr, false}

	if t.MaxConnsPerHost > 0 {