validateOptionalProfiles(session, request.getProfileActivation());

            if (session.getResult().hasExceptions()) {
                addExceptionToResult(result, session.getResult().getExceptions().get(0));
                persistResumptionData(result, session);
                return result;
            } else {
                session.getAllProjects().stream()

                System.err.println("Missing: " + artifact);
            }
        }

        if (result.hasExceptions()) {
            for (Exception e : result.getExceptions()) {
                e.printStackTrace();
            }
        }
    }

    // ------------------------------------------------------------------------

    public boolean hasExceptions() {
        return exceptions != null && !exceptions.isEmpty();
    }

    public List<Exception> getExceptions() {
        return exceptions == null ? Collections.emptyList() : Collections.unmodifiableList(exceptions);
    }

    // ------------------------------------------------------------------------

    /**
     * Gets the exceptions that occurred while building the dependency graph.
     *
     * @return the exceptions that occurred, never {@code null}
     */
    @Nonnull
    List<Exception> getExceptions();

    /**
     * Gets the root node of the dependency graph.
     *
     * @return the root node of the dependency graph or {@code null} if none
     */
    @Nullable
    Node getRoot();

    /**

    // ------------------------------------------------------------------------

    public boolean hasExceptions() {
        return exceptions != null && !exceptions.isEmpty();
    }

    public List<Exception> getExceptions() {
        return exceptions == null ? Collections.emptyList() : Collections.unmodifiableList(exceptions);
    }

    // ------------------------------------------------------------------------

                    result.setVersion(subResult.getVersion());
                    result.setRepository(subResult.getRepository());
                    for (Exception exception : subResult.getExceptions()) {
                        result.addException(exception);
                    }
                }
            } else {

            if ((i == lines.length - 1)
                    && (context.options().showErrors().orElse(false)
                            || (summary.getException() instanceof InternalErrorException))) {
                context.logger.error(line, summary.getException());
            } else {
                context.logger.error(line);
            }

            currentColor = nextColor;
        }

            line = indent + line + ("".equals(nextColor) ? "" : ANSI_RESET);

            if ((i == lines.length - 1) && (showErrors || (summary.getException() instanceof InternalErrorException))) {
                slf4jLogger.error(line, summary.getException());
            } else {
                slf4jLogger.error(line);
            }

            currentColor = nextColor;
        }

pull.XmlSerializer); public void startElement(String); public void addAttribute(String, String); public void writeText(String); public void writeMarkup(String); public void endElement(); private void storeException(java.io.IOException); public java.util.List getExceptions(); } org/codehaus/plexus/util/xml/XMLWriter.class package org.codehaus.plexus.util.xml; public abstract interface XMLWriter { public abstract void startElement(String); public abstract void addAttribute(String, String); public abstract void writeText(String);...

    }

    @Override
    public void transferFailed(TransferEvent event) {
        transferCompleted(event);

        println(
                "transferFailed",
                event.getException().getClass() + ": " + event.getException().getMessage());
    }

    private void transferCompleted(TransferEvent event) {
        downloads.remove(event.getResource());

        StringBuilder buffer = new StringBuilder(64);