the operation would become deadlocked if the channels are full.

### Typed handlers

Typed handlers are handlers that have a specific type for the request and response payloads.

```go
    // Create a typed handler.
    handler := func(ctx context.Context, p *Payload, in <-chan *Req, out chan<- *Resp) *RemoteErr {

import org.apache.maven.api.di.SessionScoped;
import org.apache.maven.api.services.ArtifactManager;
import org.apache.maven.project.MavenProject;
import org.eclipse.sisu.Typed;

import static org.apache.maven.internal.impl.Utils.nonNull;

@Named
@Typed
@SessionScoped
public class DefaultArtifactManager implements ArtifactManager {

    @Nonnull
    private final InternalMavenSession session;

import org.apache.maven.model.io.ModelParseException;
import org.apache.maven.model.io.ModelReader;
import org.apache.maven.model.locator.ModelLocator;
import org.eclipse.sisu.Typed;

/**
 *
 * Note: uses @Typed to limit the types it is available for injection to just ModelProcessor.
 *
 * This is because the ModelProcessor interface extends ModelLocator and ModelReader. If we

               * case we ever switch to JUnit 4:
               */
              fail();
            }
          }
        });
  }

  // TODO(cpovirk): promote to Uninterruptibles, and add untimed version
  private static void joinUninterruptibly(Thread thread, long timeout, TimeUnit unit) {
    boolean interrupted = false;
    try {
      long remainingNanos = unit.toNanos(timeout);

			<h2>
				<la:message key="labels.error_title" />
			</h2>
			<div>
				<la:info id="msg" message="true">
					<div class="alert alert-info">${msg}</div>
				</la:info>
				<la:errors styleClass="list-unstyled"/>
			</div>
		</div>
	</main>
	<jsp:include page="../footer.jsp" />
	<input type="hidden" id="contextPath" value="${pageContext.request.contextPath}" />
	<script type="text/javascript"

			<h2>
				<la:message key="labels.error_title" />
			</h2>
			<div>
				<la:info id="msg" message="true">
					<div class="alert alert-info">${msg}</div>
				</la:info>
				<la:errors styleClass="list-unstyled"/>
			</div>
		</div>
	</main>
	<jsp:include page="../footer.jsp" />
	<input type="hidden" id="contextPath" value="${pageContext.request.contextPath}" />
	<script type="text/javascript"

               * case we ever switch to JUnit 4:
               */
              fail();
            }
          }
        });
  }

  // TODO(cpovirk): promote to Uninterruptibles, and add untimed version
  private static void joinUninterruptibly(Thread thread, long timeout, TimeUnit unit) {
    boolean interrupted = false;
    try {
      long remainingNanos = unit.toNanos(timeout);

import java.util.concurrent.TimeoutException;
import junit.framework.TestCase;

/** Unit tests for {@link Futures#getChecked(Future, Class)}. */
public class FuturesGetCheckedTest extends TestCase {
  // Boring untimed-get tests:

  public void testGetCheckedUntimed_success() throws TwoArgConstructorException {
    assertEquals("foo", getChecked(immediateFuture("foo"), TwoArgConstructorException.class));
  }

	CLIClientWithRevision(rev string) (kube.CLIClient, error)
	// InferPodInfoFromTypedResource returns the pod name and namespace for the given typed resource
	InferPodInfoFromTypedResource(name, namespace string) (pod string, ns string, err error)
	// InferPodsFromTypedResource returns the pod names and namespace for the given typed resource
	InferPodsFromTypedResource(name, namespace string) ([]string, string, error)

import org.apache.maven.api.services.ProjectManager;
import org.apache.maven.project.MavenProject;
import org.eclipse.sisu.Typed;

import static java.util.stream.Collectors.toList;
import static org.apache.maven.internal.impl.Utils.map;
import static org.apache.maven.internal.impl.Utils.nonNull;

@Named
@Typed
@SessionScoped
public class DefaultProjectManager implements ProjectManager {