@Override
    public void write(Writer output, Map<String, Object> options, PersistedToolchains toolchains) throws IOException {
        Objects.requireNonNull(output, "output cannot be null");
        Objects.requireNonNull(toolchains, "toolchains cannot be null");

        try (Writer out = output) {
            new MavenToolchainsStaxWriter().write(out, toolchains.getDelegate());

    public ContainerCapsule createContainerCapsule(
            LookupInvoker<C> invoker, C context, CoreExtensionSelector<C> coreExtensionSelector) throws Exception {
        requireNonNull(invoker, "invoker");
        requireNonNull(context, "context");
        requireNonNull(coreExtensionSelector, "coreExtensionSelector");
        return new PlexusContainerCapsule(
                context,
                Thread.currentThread().getContextClassLoader(),

    public Metadata read(File input, Map<String, ?> options) throws IOException {
        Objects.requireNonNull(input, "input cannot be null");

        return read(Files.newInputStream(input.toPath()), options);
    }

    @Override
    public Metadata read(Reader input, Map<String, ?> options) throws IOException {
        Objects.requireNonNull(input, "input cannot be null");

        try (Reader in = input) {

 */

package com.google.common.graph;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import static java.util.Objects.requireNonNull;

import java.util.Collections;
import java.util.Map;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * A base implementation of {@link NetworkConnections} for undirected networks.
 *

    @Override
    public ClassRealm getCoreRealm() {
        return containerRealm;
    }

    @Override
    public ClassRealm createProjectRealm(Model model, List<Artifact> artifacts) {
        Objects.requireNonNull(model, "model cannot be null");

        ClassLoader parent = getMavenApiRealm();

        return createRealm(getKey(model), RealmType.Project, parent, null, null, artifacts);
    }

import static java.util.Objects.requireNonNull;

@Singleton
@Named
public class DefaultTransformerManager implements TransformerManager {
    private final Map<String, PomArtifactTransformer> transformers;

    @Inject
    public DefaultTransformerManager(Map<String, PomArtifactTransformer> transformers) {
        this.transformers = requireNonNull(transformers);
    }

    @Override

              lock.unlock();
            }
          });
    }

    @Override
    protected final void doStop() {
      // Both requireNonNull calls are safe because doStop can run only after a successful doStart.
      requireNonNull(runningTask);
      requireNonNull(executorService);
      runningTask.cancel(false);
      executorService.execute(
          () -> {
            try {
              lock.lock();

import org.apache.maven.api.ProtoSession;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;

import static java.util.Objects.requireNonNull;

/**
 * Collects problems that were encountered during project building.
 *
 * @param <P> The type of the problem.
 * @since 4.0.0
 */
@Experimental

            throw e;
        }
    }

    @Override
    public CacheRecord put(Key key, ClassRealm pluginRealm, List<Artifact> pluginArtifacts) {
        Objects.requireNonNull(pluginRealm, "pluginRealm cannot be null");
        Objects.requireNonNull(pluginArtifacts, "pluginArtifacts cannot be null");

        if (cache.containsKey(key)) {
            throw new IllegalStateException("Duplicate plugin realm for plugin " + key);

    }

    @Override
    public void configureBean(BeanConfigurationRequest request) throws BeanConfigurationException {
        Objects.requireNonNull(request, "request cannot be null");
        Objects.requireNonNull(request.getBean(), "request.bean cannot be null");

        Object configuration = request.getConfiguration();
        if (configuration == null) {
            return;
        }