* @param path path to the JAR file or output directory of the dependency
     * @return where to place the dependency, or an empty value if the placement cannot be determined
     * @throws IOException if an error occurred while reading module information
     */
    Optional<PathType> selectPathType(Set<PathType> types, Predicate<PathType> filter, Path path) throws IOException {
        PathType selected = null;

        if (isErrorEnabled()) {
            logger.error(toString(content));
        }
    }

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

    @Override
    public void error(Throwable error) {
        logger.error("", error);
    }

        } catch (ExpressionEvaluationException e) {
            // not important
            // will be reported during Mojo fields populate
        }

        // fallback - in case of error in expressionEvaluator
        return false;
    }

    @Override
    public final void validate(
            MavenSession mavenSession,
            MojoDescriptor mojoDescriptor,
            Class<?> mojoClass,

     * @param lineNumber The one-based index of the line containing the error or {@code -1} if unknown.
     * @param columnNumber The one-based index of the column containing the error or {@code -1} if unknown.
     * @param cause The nested cause of this error, may be {@code null}.
     */
    public MetadataParseException(String message, int lineNumber, int columnNumber, Throwable cause) {
        super(message);

 * that exhibits the problem.
 *
 */
public interface Problem {

    /**
     * The different severity levels for a problem, in decreasing order.
     */
    enum Severity {
        FATAL, //
        ERROR, //
        WARNING //
    }

    /**
     * Gets the hint about the source of the problem. While the syntax of this hint is unspecified and depends on the

                    try {
                        c = interpolator.interpolate(value, recursionInterceptor);
                    } catch (InterpolationException e) {
                        problems.add(BuilderProblem.Severity.ERROR, ModelProblem.Version.BASE, e.getMessage(), e);
                    }
                    cache.put(value, c);
                }
                return c;
            }
            return value;
        };

                }

                props.setProperty(key, Long.toString(System.currentTimeMillis()));

                if (error != null) {
                    props.setProperty(key + ERROR_KEY_SUFFIX, error);
                } else {
                    props.remove(key + ERROR_KEY_SUFFIX);
                }

                getLogger().debug("Writing resolution-state to: " + touchfile);

     * @param path path to the JAR file or output directory of the dependency
     * @return where to place the dependency, or an empty value if the placement cannot be determined
     * @throws IOException if an error occurred while reading module information
     */
    Optional<PathType> selectPathType(Set<PathType> types, Predicate<PathType> filter, Path path) throws IOException {
        PathType selected = null;

        try {
            updateRepositoryMetadata(localRepository, remoteRepository);
        } catch (IOException | XMLStreamException e) {
            throw new RepositoryMetadataStoreException("Error updating group repository metadata", e);
        }
    }

    protected void updateRepositoryMetadata(ArtifactRepository localRepository, ArtifactRepository remoteRepository)

public abstract void info(String, Throwable); public abstract boolean isInfoEnabled(); public abstract void warn(String); public abstract void warn(String, Throwable); public abstract boolean isWarnEnabled(); public abstract void error(String); public abstract void error(String, Throwable); public abstract boolean isErrorEnabled(); public abstract void fatalError(String); public abstract void fatalError(String, Throwable); public abstract boolean isFatalErrorEnabled(); public abstract Logger getChildLogger(String);...