import org.gradle.api.logging.Logger;
import org.gradle.api.logging.Logging;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public class ShutdownHooks {
    private static final Logger LOGGER = Logging.getLogger(ShutdownHooks.class);
    private static final Map<Runnable, Thread> HOOKS = new ConcurrentHashMap<Runnable, Thread>();

    public static void addShutdownHook(Runnable shutdownHook) {

import org.gradle.launcher.daemon.server.MasterExpirationStrategy;
import org.gradle.launcher.daemon.server.expiry.DaemonExpirationStrategy;
import org.gradle.process.internal.shutdown.ShutdownHooks;

import java.io.ByteArrayInputStream;
import java.io.EOFException;
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;

import org.gradle.internal.nativeintegration.services.NativeServices;
import org.gradle.internal.operations.CurrentBuildOperationRef;
import org.gradle.process.ExecResult;
import org.gradle.process.internal.shutdown.ShutdownHooks;

import javax.annotation.Nullable;
import java.io.File;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Executor;

import org.gradle.launcher.daemon.server.expiry.DaemonExpirationStatus;
import org.gradle.launcher.daemon.server.expiry.DaemonExpirationStrategy;
import org.gradle.process.internal.shutdown.ShutdownHooks;

import java.security.SecureRandom;
import java.util.Date;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;

Class <org.gradle.process.internal.shutdown.ShutdownHooks> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (ShutdownHooks.java:0)