@Override
    public CommandRegistry createShellCommandRegistry(LookupContext context) {
        return new BuiltinShellCommandRegistry(context);
    }

    private static class BuiltinShellCommandRegistry extends JlineCommandRegistry implements AutoCloseable {
        private final LookupContext shellContext;
        private final MavenInvoker shellMavenInvoker;
        private final MavenParser mavenParser;

 */
public class ShellInvoker extends LookupInvoker<LookupContext> {

    public ShellInvoker(Lookup protoLookup, @Nullable Consumer<LookupContext> contextConsumer) {
        super(protoLookup, contextConsumer);
    }

    @Override
    protected LookupContext createContext(InvokerRequest invokerRequest) {
        return new LookupContext(invokerRequest, true, invokerRequest.options().orElse(null));
    }

 *
 * @param <C> The context type.
 */
public abstract class LookupInvoker<C extends LookupContext> implements Invoker {
    protected final Lookup protoLookup;

    @Nullable
    protected final Consumer<LookupContext> contextConsumer;

    public LookupInvoker(Lookup protoLookup, @Nullable Consumer<LookupContext> contextConsumer) {
        this.protoLookup = requireNonNull(protoLookup);

/**
 * Container capsule backed by Plexus Container.
 *
 * @param <C> The context type.
 */
public class PlexusContainerCapsuleFactory<C extends LookupContext> implements ContainerCapsuleFactory<C> {
    @Override
    public ContainerCapsule createContainerCapsule(
            LookupInvoker<C> invoker, C context, CoreExtensionSelector<C> coreExtensionSelector) throws Exception {

import org.apache.maven.api.toolchain.PersistedToolchains;
import org.apache.maven.cling.event.ExecutionEventLogger;
import org.apache.maven.cling.invoker.CliUtils;
import org.apache.maven.cling.invoker.LookupContext;
import org.apache.maven.cling.invoker.LookupInvoker;
import org.apache.maven.cling.transfer.ConsoleMavenTransferListener;
import org.apache.maven.cling.transfer.QuietMavenTransferListener;