}
        try {
            return ValidationReportLevel.valueOf(level.toUpperCase(Locale.ENGLISH));
        } catch (IllegalArgumentException e) {
            logger.warn(
                    "Invalid value specified for property {}: '{}'. Supported values are (case insensitive): {}",
                    MAVEN_PLUGIN_VALIDATION_KEY,
                    level,
                    Arrays.toString(ValidationReportLevel.values()));

        aggregationAggregationBuilderList.add(builder);
    }

    // ===================================================================================
    //                                                                 Invalid Aggregation
    //                                                                       =============
    protected void checkEsInvalidAggregation(String name, Object value) {

        aggregationAggregationBuilderList.add(builder);
    }

    // ===================================================================================
    //                                                                 Invalid Aggregation
    //                                                                       =============
    protected void checkEsInvalidAggregation(String name, Object value) {

                    throw new IllegalArgumentException(
                            "Invalid threads value: '" + threadConfiguration + "'. Value must be positive.");
                }
                return threads;
            }
        } catch (NumberFormatException e) {
            throw new IllegalArgumentException("Invalid threads value: '" + threadConfiguration

                } catch (InvalidRepositoryException e) {
                    problems.add(new ModelProblemCollectorRequest(Severity.ERROR, ModelProblem.Version.BASE)
                            .setMessage("Invalid repository " + repository.getId() + ": " + e.getMessage())
                            .setLocation(new InputLocation(repository.getLocation("")))
                            .setException(e));
                }

     * </ul>
     *
     * @param spec string representation of a version or version range
     * @return a new {@link VersionRange} object that represents the spec
     * @throws InvalidVersionSpecificationException if invalid version specification
     */
    public static VersionRange createFromVersionSpec(String spec) throws InvalidVersionSpecificationException {
        if (spec == null) {
            return null;
        }

        try {
            documentItems = searchInternal(query, params, userBean);
        } catch (final InvalidQueryException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Invalid query: {}", query, e);
            }
            query = ComponentUtil.getQueryStringBuilder().params(params).sortField(params.getSort()).escape(true).build();
            documentItems = searchInternal(query, params, userBean);

        } catch (final QueryParseException e) {
            throw new InvalidQueryException(messages -> messages.addErrorsInvalidQueryParseError(UserMessages.GLOBAL_PROPERTY_KEY),
                    "Invalid query: " + queryContext.getQueryString(), e);
        }
    }

    protected QueryParser getQueryParser() {
        return ComponentUtil.getQueryParser();
    }

        if (!fessConfig.isAcceptedSearchReferer(request.getHeader("referer"))) {
            writeJsonResponse(HttpServletResponse.SC_BAD_REQUEST, escapeJsonKeyValue(MESSAGE_FIELD, "Referer is invalid."));
            return;
        }

        if (!fessConfig.isApiSearchScroll()) {
            writeJsonResponse(HttpServletResponse.SC_BAD_REQUEST, escapeJsonKeyValue(MESSAGE_FIELD, "Scroll Search is not available."));

        // timing of executing the interpolation

        try
        {
        new RegexBasedModelInterpolator().interpolate( model, context );
        fail( "Should have failed to interpolate with invalid reference" );
        }
        catch ( ModelInterpolationException expected )
        {
        assertTrue( true );
        }
        */

        ModelInterpolator interpolator = createInterpolator();