private static final String BEACON_CLASS_NAME = "org.gradle.internal.installation.beacon.InstallationBeacon";

    private CurrentGradleInstallationLocator() {
    }

    public synchronized static CurrentGradleInstallation locate() {
        return locateViaClassLoader(CurrentGradleInstallationLocator.class.getClassLoader());
    }

        this(null);
    }

    BootstrapSecurityManager(URLClassLoader target) {
        this.target = target;
    }

    @Override
    public void checkPermission(Permission permission) {
        synchronized (this) {
            if (initialised) {
                return;
            }
            if (System.in == null) {
                // Still starting up
                return;
            }

        void queueIncoming(Message message) {
            synchronized (lock) {
                receiveQueue << message
                lock.notifyAll()
            }
        }

        void queueBroken(Throwable failure = new RuntimeException()) {
            queueIncoming(new Failure(failure))
        }

        Message receive() {
            synchronized (lock) {
                while (receiveQueue.empty) {

                }
            }
        }, throttleMs, throttleMs, TimeUnit.MILLISECONDS);
    }

    @Override
    public void onOutput(OutputEvent newEvent) {
        synchronized (lock) {
            queue.add(newEvent);

            if (queue.size() == 10000) {
                renderNow();
                return;
            }

            if (newEvent instanceof InteractiveEvent) {

import (
	"sync/atomic"
)

// Once is an object that will perform exactly one action.
//
// A Once must not be copied after first use.
//
// In the terminology of [the Go memory model],
// the return from f “synchronizes before”
// the return from any call of once.Do(f).
//
// [the Go memory model]: https://go.dev/ref/mem
type Once struct {
	// done indicates whether the action has been performed.

                        Thread.sleep(JAR_GENERATION_TIME_MS)
                        touch(file)
                    }
                })

                synchronized(jarFiles) {
                    jarFiles << jarFile
                }
            }
        }

        concurrent.finished()

        then:
        triggeredJarFileGeneration.get() == 1

//
// In the terminology of [the Go memory model],
// the n'th call to [Mutex.Unlock] “synchronizes before” the m'th call to [Mutex.Lock]
// for any n < m.
// A successful call to [Mutex.TryLock] is equivalent to a call to Lock.
// A failed call to TryLock does not establish any “synchronizes before”
// relation at all.
//
// [the Go memory model]: https://go.dev/ref/mem
type Mutex struct {
	state int32

   *
   * @param navigableSet the navigable set to be "wrapped" in a synchronized navigable set.
   * @return a synchronized view of the specified navigable set.
   * @since 13.0
   */
  @GwtIncompatible // NavigableSet
  public static <E extends @Nullable Object> NavigableSet<E> synchronizedNavigableSet(
      NavigableSet<E> navigableSet) {
    return Synchronized.navigableSet(navigableSet);
  }

            this.originalPath = originalPath;
            this.transformedJarPath = transformedJarPath;
        }

        @Override
        @Nullable
        public synchronized byte[] loadTransformedClass(String className) throws IOException {
            JarFile jarFile = getJarFileLocked();
            // From this point it is safe to load the bytes even if somebody attempts to close the replacer.

        CacheConfigurationsInternal cacheConfigurations = objectFactory.newInstance(DefaultCacheConfigurations.class, legacyCacheCleanupEnablement);
        if (gradleInternal.isRootBuild()) {
            cacheConfigurations.synchronize(persistentCacheConfigurations);
            persistentCacheConfigurations.setCleanupHasBeenConfigured(false);
        }
        return cacheConfigurations;
    }