import java.io.InputStream;

/**
 * Provides access to the contents of a source independently of the backing store (e.g. file system, database, memory).
 *
 */
public interface Source {

    /**
     * Gets a byte stream to the source contents. Closing the returned stream is the responsibility of the caller.
     *
     * @return A byte stream to the source contents, never {@code null}.
     * @throws IOException in case of IO issue

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     * The returned list of versions is only dependent on the configured repositories and their contents.
     * The supplied request may also refer to a single concrete version rather than a version range.
     * In this case though, the result contains simply the (parsed) input version, regardless of the
     * repositories and their contents.
     *
     * @param session the session to use
     * @param artifactCoordinate t

        // don't merge
    }

    @Override
    protected void mergeBuildBase_Resources(
            BuildBase.Builder builder,
            BuildBase target,
            BuildBase source,
            boolean sourceDominant,
            Map<Object, Object> context) {
        // don't merge
    }

    @Override

    /*
     * @see org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable#contextualize(org.codehaus.plexus.context.Context)
     */

    public void contextualize(Context context) throws ContextException {
        container = (PlexusContainer) context.get(PlexusConstants.PLEXUS_KEY);
    }

 *
 */
public interface ProfileActivator {

    /**
     * Determines whether the specified profile is active in the given activator context.
     *
     * @param profile The profile whose activation status should be determined, must not be {@code null}.
     * @param context The environmental context used to determine the activation status of the profile, must not be
     *            {@code null}.

    }

    @Override
    public List<Profile> getActiveProfiles(
            Collection<Profile> profiles, ProfileActivationContext context, ModelProblemCollector problems) {
        Collection<String> activatedIds = new HashSet<>(context.getActiveProfileIds());
        Collection<String> deactivatedIds = new HashSet<>(context.getInactiveProfileIds());

        List<Profile> activeProfiles = new ArrayList<>(profiles.size());

     *
     * @param type the type, must not be {@code null}
     * @param context the Maven session, must not be {@code null}
     * @since 3.0 (addition of the <code>MavenSession</code> parameter)
     */
    ToolchainPrivate[] getToolchainsForType(String type, MavenSession context) throws MisconfiguredToolchainException;

    /**
     * Stores the toolchain into build context for later use by toolchain-aware plugins.
     *

            }

            Map<Object, Object> context =
                    Collections.singletonMap(PLUGIN_MANAGEMENT, targetBuild.getPluginManagement());

            Build.Builder builder = Build.newBuilder(targetBuild);
            mergePluginContainer_Plugins(builder, targetBuild, source.getBuild(), false, context);

            return target.withBuild(builder.build());
        }

 * @since 4.0.0
 */
public interface ModelTransformer {
    /**
     * @param context the context, cannot be null
     * @param model   the model to transform
     * @param path    the pom file, cannot be null
     * @throws ModelTransformerException if the transformation fails
     */
    @Nonnull
    Model transform(@Nonnull ModelTransformerContext context, @Nonnull Model model, @Nonnull Path path)
            throws ModelTransformerException;