RepositorySystemSession result = newCloseableSession(request, new MavenChainedWorkspaceReader());
        MavenSession session = new MavenSession(result, request, new DefaultMavenExecutionResult());
        result.getData().set(MavenSession.class, session); // for legacy code to grab this
        session.setSession(defaultSessionFactory.newSession(session));
        return result;
    }

     */
    protected InputStream getContentStream(final DeferredFileOutputStream dfos) throws IOException {
        if (dfos.isInMemory()) {
            return new ByteArrayInputStream(dfos.getData());
        }
        return new BufferedInputStream(new FileInputStream(dfos.getFile()));
    }

    /**
     * Returns a content from a writer.
     *
     * @param out A content writer.

                        continue;
                    }
                    @SuppressWarnings("unchecked")
                    final Map<String, Object> map = (Map<String, Object>) transformer.getData(accessResultData);
                    if (map.isEmpty()) {
                        // no transformer
                        logger.warn("No data: url={}", accessResult.getUrl());
                        continue;

            // to load the projects, is stored. This is to avoid the session being overwritten
            // if a plugin uses the ProjectBuilder.
            this.session
                    .getData()
                    .replace(SessionData.key(ModelBuilder.ModelBuilderSession.class), null, modelBuilderSession);
        }

        @Override
        public void close() {}

    /**
     * Retrieves the session data associated with this session.
     *
     * @return the session data, never {@code null}
     */
    @Nonnull
    SessionData getData();

    /**
     * Default implementation at {@link ProtoSession} level, as the notion of project
     * does not exist there.
     */
    @Nonnull
    default Map<String, String> getEffectiveProperties() {

                    readn(this.in, buffer, 4 + off, pad);
                }

                if (r.getDataLength() > 0) {
                    readn(this.in, r.getData(), r.getOffset(), r.getDataLength()); /* read direct */
                }
            } else {
                readn(this.in, buffer, 4 + SMB1_HEADER_LENGTH, size - SMB1_HEADER_LENGTH);

        eventSpyDispatcher = container.lookup(EventSpyDispatcher.class);

        DefaultEventSpyContext eventSpyContext = new DefaultEventSpyContext();
        Map<String, Object> data = eventSpyContext.getData();
        data.put("plexus", container);
        data.put("workingDirectory", cliRequest.workingDirectory);
        data.put("systemProperties", cliRequest.systemProperties);