professional setting

## Our Responsibilities

Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior, in compliance with the
licensing terms applying to the Project developments.

Project maintainers have the right and responsibility to remove, edit, or

    }
  }

  /** Returns a fresh {@link InternerBuilder} instance. */
  public static InternerBuilder newBuilder() {
    return new InternerBuilder();
  }

  /**
   * Returns a new thread-safe interner which retains a strong reference to each instance it has
   * interned, thus preventing these instances from being garbage-collected. If this retention is

   * future is {@linkplain Future#isDone() done}.
   *
   * <p>Prefer to create {@code ListenableFuture} instances with {@link SettableFuture}, {@link
   * MoreExecutors#listeningDecorator( java.util.concurrent.ExecutorService)}, {@link
   * ListenableFutureTask}, {@link AbstractFuture}, and other utilities over creating plain {@code
   * Future} instances to be upgraded to {@code ListenableFuture} after the fact.
   */

 * </ul>
 *
 * <h3>Dependency management</h3>
 *
 * <p>{@link org.apache.maven.api.ArtifactCoordinates} instances are used to locate artifacts in a repository.
 * Each instance identifies an artifact or version range of artifacts in the Maven repository system.</p>
 *
 * <p>{@link org.apache.maven.api.Artifact} instances represent artifacts in the repository.

# https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html
exit_if_not_on_ec2_instance() {
  curl -m 1 -s "http://169.254.169.254/latest/meta-data/instance-id"
  IS_EC2_INSTANCE=$?
  if [ $IS_EC2_INSTANCE -ne 0 ]; then
    echo "Not running on an EC2 instance, skipping the configuration"
    exit 0
  fi
}

interface NestedType {
    Property<String> getSomeProperty()
}
class Example {
    Property<NestedType> getNestedProperty()
}
```

This is unnecessary because users will have trouble creating instances of `NestedType` and merging different instances of `NestedType`. It's also more awkward for users to access the properties in the nested property.

import org.apache.maven.toolchain.model.ToolchainModel;

/**
 * Internal toolchain factory, to prepare toolchains instances.
 *
 * @since 2.0.9
 * @deprecated Use {@link org.apache.maven.api.services.ToolchainFactory} instead.
 */
@Deprecated(since = "4.0.0")
public interface ToolchainFactory {
    /**
     * Create instance of toolchain.
     **/

 * under the License.
 */
package org.apache.maven.execution;

import java.util.Optional;

/**
 * Instances of this class are responsible for determining whether it makes sense to "resume" a build using
 * the {@code --resume} flag.
 */
public interface BuildResumptionAnalyzer {
    /**
     * Construct an instance of {@link BuildResumptionData} based on the outcome of the current Maven build.

@GwtCompatible
@FunctionalInterface
public interface Supplier<T extends @Nullable Object> extends java.util.function.Supplier<T> {
  /**
   * Retrieves an instance of the appropriate type. The returned object may or may not be a new
   * instance, depending on the implementation.
   *
   * @return an instance of the appropriate type
   */
  @Override
  @ParametricNullness
  T get();

  /**

         *
         * @return The {@link DownloadedArtifact} instance.
         */
        DownloadedArtifact getArtifact();

        /**
         * Returns a mapping of repositories to the exceptions encountered while resolving the artifact.
         *
         * @return A {@link Map} where keys are {@link Repository} instances and values are {@link Exception} instances.
         */