logger.debug(indent + artifact + " (selected for " + artifact.getScope() + ")");
    }

    public void omitForNearer(Artifact omitted, Artifact kept) {
        String omittedVersion = omitted.getVersion();
        String keptVersion = kept.getVersion();

        if (!Objects.equals(omittedVersion, keptVersion)) {

    public boolean isDebugEnabled() {
        return false;
    }

    public void debug(String msg) {}

    public void debug(String format, Object arg) {}

    public void debug(String format, Object arg1, Object arg2) {}

    public void debug(String format, Object... arguments) {}

    public void debug(String msg, Throwable t) {}

    public boolean isDebugEnabled(Marker marker) {
        return false;

    }

    public void debug(CharSequence content) {
        if (isDebugEnabled()) {
            logger.debug(toString(content));
        }
    }

    @Override
    public void debug(CharSequence content, Throwable error) {
        if (isDebugEnabled()) {
            logger.debug(toString(content), error);
        }
    }

    @Override
    public void debug(Throwable error) {

                getLogger()
                        .debug("Skipping update check for " + artifact + " (" + file + ") from " + repository.getId()
                                + " (" + repository.getUrl() + ")");
            }

            return false;
        }

        if (getLogger().isDebugEnabled()) {
            getLogger()

    /**
     * @see org.apache.maven.plugin.logging.Log#debug(java.lang.CharSequence)
     */
    public void debug(CharSequence content) {
        print("debug", content);
    }

    /**
     * @see org.apache.maven.plugin.logging.Log#debug(java.lang.CharSequence, java.lang.Throwable)
     */
    public void debug(CharSequence content, Throwable error) {
        print("debug", content, error);
    }

    /**

public interface Log {
    /**
     * @return true if the <b>debug</b> error level is enabled
     */
    boolean isDebugEnabled();

    /**
     * Send a message to the user in the <b>debug</b> error level.
     *
     * @param content
     */
    void debug(CharSequence content);

    /**
     * Send a message (and accompanying exception) to the user in the <b>debug</b> error level.<br>

            if (cause != null && "VersionConflictEngineException".equals(cause.getClass().getSimpleName())) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to insert {}", urlQueue, e);
                }
                return;
            }
            throw e;
        }
    }

    @Override
    public void delete(final String sessionId) {

 */
public class MavenSimpleConfiguration extends BaseSlf4jConfiguration {
    @Override
    public void setRootLoggerLevel(Level level) {
        String value;
        switch (level) {
            case DEBUG:
                value = "debug";
                break;

            case INFO:
                value = "info";
                break;

            default:
                value = "error";
                break;

                                    logger.debug("", ((Throwable) next));
                                } else {
                                    logger.debug(String.valueOf(last), ((Throwable) next));
                                }
                            } else {
                                if (last != null) {
                                    logger.debug(String.valueOf(last));
                                }

 */
public class Log4j2Configuration extends BaseSlf4jConfiguration {
    @Override
    public void setRootLoggerLevel(Level level) {
        String value;
        switch (level) {
            case DEBUG:
                value = "debug";
                break;

            case INFO:
                value = "info";
                break;

            default:
                value = "error";
                break;