<!--                                                                        ========== -->
  <error-page>
    <error-code>400</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=badRequest</location>
  </error-page>
  <error-page>
    <error-code>401</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=badAuth</location>
  </error-page>
  <error-page>

            return new DefaultVersionResolverRequest(session, trace, artifactCoordinates, repositories);
        }

        private static class DefaultVersionResolverRequest extends BaseRequest<Session>
                implements VersionRangeResolverRequest {
            private final ArtifactCoordinates artifactCoordinates;
            private final List<RemoteRepository> repositories;

            return new DefaultVersionResolverRequest(session, trace, artifactCoordinates, repositories);
        }

        private static class DefaultVersionResolverRequest extends BaseRequest<Session>
                implements VersionResolverRequest {
            private final ArtifactCoordinates artifactCoordinates;
            private final List<RemoteRepository> repositories;

            return new DefaultArtifactDeployerRequest(
                    session, trace, repository, artifacts, retryFailedDeploymentCount);
        }

        private static class DefaultArtifactDeployerRequest extends BaseRequest<Session>
                implements ArtifactDeployerRequest {

            private final RemoteRepository repository;
            private final Collection<ProducedArtifact> artifacts;

            return new DefaultArtifactResolverRequest(session, trace, coordinates, repositories);
        }

        private static class DefaultArtifactResolverRequest extends BaseRequest<Session>
                implements ArtifactResolverRequest {
            @Nonnull
            private final Collection<? extends ArtifactCoordinates> coordinates;

            @Nullable

		<postConstruct name="addDesignJspFileName">
			<arg>"errorSystem"</arg>
			<arg>"error/system.jsp"</arg>
		</postConstruct>
		<postConstruct name="addDesignJspFileName">
			<arg>"errorBadRequest"</arg>
			<arg>"error/badRequest.jsp"</arg>
		</postConstruct>
		<postConstruct name="addDesignJspFileName">
			<arg>"cache"</arg>
			<arg>"cache.hbs"</arg>
		</postConstruct>
		<postConstruct name="addDesignJspFileName">

                    session, trace, groupId, artifactId, version, classifier, extension, type);
        }

        private static class DefaultArtifactFactoryRequest extends BaseRequest<Session>
                implements ArtifactFactoryRequest {
            private final String groupId;
            private final String artifactId;
            private final String version;

        @Nonnull
        public ArtifactInstallerRequest build() {
            return new DefaultArtifactInstallerRequest(session, trace, artifacts);
        }

        static class DefaultArtifactInstallerRequest extends BaseRequest<Session> implements ArtifactInstallerRequest {

            private final Collection<ProducedArtifact> artifacts;

            DefaultArtifactInstallerRequest(
                    @Nonnull Session session,

                    session, trace, groupId, artifactId, version, classifier, extension, type, coordinateString);
        }

        private static class DefaultArtifactFactoryRequestArtifact extends BaseRequest<Session>
                implements ArtifactCoordinatesFactoryRequest {
            private final String groupId;
            private final String artifactId;
            private final String version;

                    session, trace, installationToolchainsSource, userToolchainsSource);
        }

        private static class DefaultToolchainsBuilderRequest extends BaseRequest<ProtoSession>
                implements ToolchainsBuilderRequest {
            private final Source installationToolchainsSource;
            private final Source userToolchainsSource;