* is meant for exclusive consumption by the model builder and is opaque to the cache implementation. The cache key is
 * formed by a combination of group id, artifact id, version and tag. The first three components generally refer to the
 * identity of a model. The tag allows for further classification of the associated data on the sole discretion of the
 * model builder.
 *
 */
public interface ModelCache {

        return session.getService(ProjectBuilder.class)
                .build(ProjectBuilderRequest.builder()
                        .session(session)
                        .path(session.getPathForLocalArtifact(artifact))
                        .processPlugins(false)
                        .build())
                .getProject()
                .get();
    }

    @Test

            String builderId = session.getRequest().getBuilderId();
            Builder builder = builders.get(builderId);
            if (builder == null) {
                throw new BuilderNotFoundException(
                        String.format("The builder requested using id = %s cannot be" + " found", builderId));
            }

     * {@link BuilderProblem.Severity#WARNING} and below are reported here. Problems with a higher severity level cause
     * the settings builder to fail with a {@link ToolchainsBuilderException}.
     *
     * @return the problems that were encountered during the settings building, can be empty but never {@code null}
     */
    @Nonnull

        }
        try (InputStream is = url.openStream()) {
            String modelId = "org.apache.maven:maven-model-builder:" + version + "-"
                    + this.getClass().getPackage().getImplementationVersion() + ":super-pom";
            return modelProcessor.read(XmlReaderRequest.builder()
                    .modelId(modelId)
                    .location(url.toExternalForm())
                    .inputStream(is)

        }

        return request;
    }

    // layer the creation of a project builder configuration with a request, but this will need to be
    // a Maven subclass because we don't want to couple maven to the project builder which we need to
    // separate.
    protected MavenSession createMavenSession(File pom) throws Exception {

    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-model-builder</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-settings</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-settings-builder</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>

 */
package org.apache.maven.properties.internal;

import java.util.Locale;
import java.util.Map;
import java.util.Properties;

import org.apache.maven.utils.Os;

/**
 * Assists the project builder. <strong>Warning:</strong> This is an internal utility class that is only public for
 * technical reasons, it is not part of the public API. In particular, this class can be changed or deleted without
 * prior notice.
 *

    Path getPath();

    @Nullable
    OutputStream getOutputStream();

    @Nullable
    Writer getWriter();

    @Nonnull
    T getContent();

    static <T> XmlWriterRequestBuilder<T> builder() {
        return new XmlWriterRequestBuilder<>();
    }

    class XmlWriterRequestBuilder<T> {
        Path path;
        OutputStream outputStream;
        Writer writer;
        T content;

                tgt = Site.newBuilder(false).build();
            }
            Site.Builder sbuilder = Site.newBuilder(tgt);
            if (sourceDominant || tgt == null || isSiteEmpty(tgt)) {
                mergeSite(sbuilder, tgt, src, sourceDominant, context);
            }
            super.mergeSite_ChildSiteUrlInheritAppendPath(sbuilder, tgt, src, sourceDominant, context);
            builder.site(sbuilder.build());
        }
    }