fun foo(bar: String) {}
                }
                operator fun Source.invoke(arg: String) {}
            """,
            v2 = """
                class Source(some: String?) {
                    fun foo(bar: String?) {}
                }
                operator fun Source.invoke(arg: String?) {}
            """
        ) {
            assertHasNoError()
            assertHasWarnings(

 * under the License.
 */
package org.apache.maven.api.cli.mvn;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.cli.InvokerRequest;

/**
 * Represents a request to invoke Maven.
 * This interface extends the general {@link InvokerRequest}, specializing it for Maven-specific operations.
 *
 * <p>A {@link MavenInvokerRequest} encapsulates all the necessary information needed to perform

          break;
      }
    } finally {
      monitor.leave();
      dispatchListenerEvents();
    }
  }

  /**
   * Invoke this method to transition the service to the {@link State#FAILED}. The service will
   * <b>not be stopped</b> if it is running. Invoke this method when a service has failed critically
   * or otherwise cannot be started nor stopped.
   */
  protected final void notifyFailed(Throwable cause) {

 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingDeque}.
 *
 * @author Kurt Alfred Kluever
 * @since 12.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingExecutorService}.
 *
 * @author Kurt Alfred Kluever
 * @since 10.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.cli.Invoker;
import org.apache.maven.api.cli.InvokerException;

/**
 * Defines the contract for a component responsible for invoking Maven using information provided in an invoker request.
 * This interface extends the general {@link Invoker} interface, specializing it for Maven-specific operations.
 *

 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingBlockingDeque}.
 *
 * <p>The {@code standard} methods are not guaranteed to be thread-safe, even when all of the
 * methods that they depend on are thread-safe.
 *

        this.classWorldManaged = classWorldManaged;
    }

    /**
     * The main entry point.
     */
    public int run(String[] args) throws IOException {
        try (Invoker<R> invoker = createInvoker()) {
            return invoker.invoke(parseArguments(args));
        } catch (ParserException e) {
            System.err.println(e.getMessage());
            return 1;
        } catch (InvokerException e) {

 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingQueue}.
 *
 * <p>The {@code standard} methods are not guaranteed to be thread-safe, even when all of the
 * methods that they depend on are thread-safe.
 *
 * @author Mike Bostock

 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingSet}.
 *
 * <p>The {@code standard} methods are not guaranteed to be thread-safe, even when all of the
 * methods that they depend on are thread-safe.
 *
 * @author Kevin Bourrillion