/**
 * A type implemented by, or extended by maven itself.
 * Maven provides implementations of those types and may inject them in plugins.
 * <p>
 * A type can be marked {@link Consumer} or {@link Provider} but not both. A type is assumed to be
 * {@link Consumer} if it is not marked either {@link Consumer} or {@link Provider}.
 * <p>
 * A package can be marked {@link Provider}. In this case, all types in the package are considered

            Provider<?> seeded = state.seeded.get(key);

            if (seeded != null) {
                return (T) seeded.get();
            }

            T provided = (T) state.provided.get(key);
            if (provided == null && unscoped != null) {
                provided = unscoped.get();
                state.provided.put(key, provided);
            }

    }

    /**
     * Default provider is BouncyCastleProvider.
     * For registering custom provider
     * @see jcifs.util.Crypto#initProvider(Provider)
     * @return Provider
     */
    public static Provider getProvider() {
        if (provider != null) {
            return provider;
        }
        provider = new BouncyCastleProvider();
        return provider;
    }

    /**

 * to be a provider type regardless of whether they are marked {@link Consumer} or {@link Provider}.
 *
 * @see Provider
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.CLASS)
@Target({ElementType.TYPE, ElementType.PACKAGE})

import org.gradle.api.file.DirectoryProperty;
import org.gradle.api.file.FileCollection;
import org.gradle.api.file.RegularFileProperty;
import org.gradle.api.provider.ListProperty;
import org.gradle.api.provider.Property;
import org.gradle.api.provider.Provider;
import org.gradle.api.tasks.CacheableTask;
import org.gradle.api.tasks.CompileClasspath;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.Nested;

        }
    }

    /**
     * A provider wrapping an existing provider with a cache
     * @param <T> the provided type
     */
    protected static class CachingProvider<T> implements Provider<T> {
        private final Provider<T> provider;
        private volatile T value;

        CachingProvider(Provider<T> provider) {
            this.provider = provider;
        }

        public T value() {

 *
 * @since 3.9.0
 */
@Named
@EagerSingleton
final class ResolverLifecycle {
    private final Provider<RepositorySystem> repositorySystemProvider;

    @Inject
    ResolverLifecycle(Provider<RepositorySystem> repositorySystemProvider) {
        this.repositorySystemProvider = requireNonNull(repositorySystemProvider);
    }

    @PreDestroy

import java.util.function.Supplier;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.annotations.Provider;
import org.apache.maven.api.annotations.ThreadSafe;

/**
 * A container for data that is specific to a session.
 * All components may use this storage to associate arbitrary data with a session.
 * <p>

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.internal.impl;

import javax.inject.Named;
import javax.inject.Provider;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.annotation.Annotation;
import java.net.URL;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.lifecycle.internal;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Provider;
import javax.inject.Singleton;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;