});
        }
    }

    private ExponentialBackoff<AwaitableFileLockReleasedSignal> newExponentialBackoff(int shortTimeoutMs) {
        return ExponentialBackoff.of(shortTimeoutMs, MILLISECONDS, new AwaitableFileLockReleasedSignal());
    }

    @VisibleForTesting
    static class AwaitableFileLockReleasedSignal implements FileLockReleasedSignal, ExponentialBackoff.Signal {

import static org.gradle.test.fixtures.ConcurrentTestUtil.poll

class DefaultFileLockManagerAwaitableFileLockReleasedSignalTest extends ConcurrentSpecification {

    @Subject def signal = new DefaultFileLockManager.AwaitableFileLockReleasedSignal()

    def "can reuse signal"() {
        given:
        def signalCount = new AtomicInteger()

        when:
        start {
            while (signalCount.get() < 2) {