String msg = str + " aggregator mojo is already being executed "
                            + "in this parallel build, those kind of mojos require exclusive access to "
                            + "reactor to prevent race conditions. This mojo execution will be blocked "
                            + "until the aggregator mojo is done.";
                    warn(msg);

    }

    @Override
    public void fetchFirst(int fetchSize) {
        _fetchScopeEffective = true;
        if (fetchSize < 0) {
            String msg = "Argument[fetchSize] should be plus: " + fetchSize;
            throw new IllegalArgumentException(msg);
        }
        _fetchStartIndex = 0;
        _fetchSize = fetchSize;
        _fetchPageNumber = 1;
        doClearFetchPageClause();
        doFetchFirst();

        br.addItem("Boundary Size");
        br.addElement(boundarySize);
        br.addItem("Limit Size");
        br.addElement(limitSize);
        final String msg = br.buildExceptionMessage();
        throw new Forced404NotFoundException(msg, UserMessages.empty()); // heavy attack!? so give no page to tell wasted action
    }

    protected DiskFileItemFactory createDiskFileItemFactory() {

            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

    protected <RESULT extends Role> RESULT updateEntity(Map<String, Object> source, RESULT result) {
        return result;
    }

            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

    protected <RESULT extends CrawlingInfo> RESULT updateEntity(Map<String, Object> source, RESULT result) {
        return result;
    }

            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

    protected <RESULT extends BoostDocumentRule> RESULT updateEntity(Map<String, Object> source, RESULT result) {
        return result;

            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

    protected <RESULT extends DataConfig> RESULT updateEntity(Map<String, Object> source, RESULT result) {
        return result;
    }

            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

    protected <RESULT extends JobLog> RESULT updateEntity(Map<String, Object> source, RESULT result) {
        return result;
    }

                String msg = "The expression ${" + expression + "} is deprecated.";
                if (newPrefix != null && !newPrefix.isEmpty()) {
                    msg += " Please use ${" + newPrefix + expression.substring(bannedPrefix.length()) + "} instead.";
                }
                problems.add(BuilderProblem.Severity.WARNING, ModelProblem.Version.V20, msg);
            }

            return value;

        } catch (IOException e) {
            String msg = e.getMessage();
            if (msg == null || msg.isEmpty()) {
                // NOTE: There's java.nio.charset.MalformedInputException and sun.io.MalformedInputException
                if (e.getClass().getName().endsWith("MalformedInputException")) {
                    msg = "Some input bytes do not match the file encoding.";
                } else {