cache.get(id1, classPath("c2"), root, null)
        cache.get(id2, classPath("c2"), root, null)

        then:
        cache.size() == 1 // both are the same

        when:
        cache.remove(id1)

        then:
        cache.size() == 1 // still used by id2

        when:
        cache.remove(id2)

        then:
        cache.size() == 0
    }

        NamespaceId id2 = new NamespaceId("some-namespace", "some-name")

        expect:
        id1 Matchers.strictlyEqual(id2)
    }

    def "hashCode and equals determine inequality" () {
        given:
        NamespaceId id1 = new NamespaceId(namespace1, name1)
        NamespaceId id2 = new NamespaceId(namespace2, name2)

        expect:
        ! id1.equals(id2)
        id1.hashCode() != id2.hashCode()

    def "can compare with other instance (#projectPath)"() {
        expect:
        def id1 = newProjectId(':myProjectPath1')
        def id2 = newProjectId(projectPath)
        strictlyEquals(id1, id2) == equality
        (id1.hashCode() == id2.hashCode()) == hashCode
        (id1.toString() == id2.toString()) == stringRepresentation

        where:
        projectPath       | equality | hashCode | stringRepresentation

        given:
        def id = newId(mid, '1.1')
        startWithState([id])
        addVisitedNode(id)

        when:
        visitor.finish(rootNode)

        then:
        notThrown(LockOutOfDateException)
    }

    def 'generates failures when extra modules visited'() {
        given:
        startWithState([])
        addVisitedNode(newId(mid, '1.0'))

        when:

                    int mid = (low + high) >>> 1;
                    T midVal = sortedElements.get(mid);
                    int cmp = key.compareTo(midVal);

                    if (cmp > 0) {
                        low = mid + 1;
                    } else if (cmp < 0) {
                        high = mid - 1;
                    } else {
                        return mid; // key found
                    }

        kill(pid1)

        when:
        args "--rerun-tasks"
        succeeds("compileJava")

        then:
        pidFile().exists()
        def pid2 = pidFile().text.strip() as long
        pid2 != pid1

        and:
        outputContainsKilledWorkerWarning()
    }

    void "daemon is gracefully removed if it is killed while idle in between calls"() {
        given:

// not be a P.
//
//go:nowritebarrierrec
func waitForSigusr1Callback(gp *g) bool {
	if gp == nil || gp.m == nil {
		waitForSigusr1.mID = -1
	} else {
		waitForSigusr1.mID = gp.m.id
	}
	b := byte(0)
	write(uintptr(waitForSigusr1.wrpipe), noescape(unsafe.Pointer(&b)), 1)
	return true
}

// SendSigusr1 sends SIGUSR1 to mp.
func SendSigusr1(mp *M) {

        urlQueue2.setCreateTime(System.currentTimeMillis());
        urlQueue2.setDepth(1);
        urlQueue2.setMethod("GET");
        urlQueue2.setSessionId("id2");
        urlQueue2.setUrl("http://www.id2.com/");

        urlQueueService.insert(urlQueue2);
        assertTrue(fesenClient.prepareSearch("fess_crawler.queue").setQuery(QueryBuilders.termQuery("sessionId", "id1")).execute()

        def mid = DefaultModuleIdentifier.newId(group, module)
        return DefaultModuleComponentSelector.newSelector(mid, new DefaultImmutableVersionConstraint(version))
    }

    private static ModuleVersionSelector newVersionSelector(String group, String name, String version) {
        def mid = DefaultModuleIdentifier.newId(group, name)

	pid1=$!
	disown ${pid1}

	"${MINIO[@]}" --address ":$((start_port + 2))" $args >"${WORK_DIR}/dist-minio-server2.log" 2>&1 &
	pid2=$!
	disown $pid2

	"${MINIO[@]}" --address ":$((start_port + 3))" $args >"${WORK_DIR}/dist-minio-server3.log" 2>&1 &
	pid3=$!
	disown $pid3

	export MC_HOST_myminio="http://minio:minio123@127.0.0.1:$((start_port + 1))"