if (tempFile.exists() && !tempFile.delete()) {
                logger.warn("Failed to delete {}.", tempFile.getAbsolutePath());
            }
            throwValidationError(messages -> messages.addErrorsFileIsNotSupported(GLOBAL, fileName), this::asListHtml);
        }
        saveInfo(messages -> messages.addSuccessBulkProcessStarted(GLOBAL));
        return redirect(getClass()); // no-op

                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),
                        this::asEditHtml);
            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });

                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),
                        this::asEditHtml);
            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });

                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),
                        this::asEditHtml);
            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });

                logger.warn("Failed to add {}", entity, e);
                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),
                        this::asEditHtml);
            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });

                try (InputStream in = Files.newInputStream(path)) {
                    out.write(in);
                }
            });
        }
        throwValidationError(messages -> messages.addErrorsCouldNotFindLogFile(GLOBAL, filename), this::asIndexHtml);
        return redirect(getClass()); // no-op
    }

    /**

    @Execute
    @Secured({ ROLE })
    public HtmlResponse upload(final ItemForm form) {
        validate(form, messages -> {}, () -> asListHtml(form.path));
        if (form.uploadFile == null) {
            throwValidationError(messages -> messages.addErrorsStorageNoUploadFile(GLOBAL), () -> asListHtml(form.path));
        }
        verifyToken(() -> asListHtml(form.path));
        try {

                        copyOp.excludeNull();
                    });
                    form.crudMode = crudMode;
                }).orElse(() -> {
                    throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asListHtml);
                });
            });
        });
    }

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

                        copyOp.excludeNull();
                    });
                    form.crudMode = crudMode;
                }).orElse(() -> {
                    throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asListHtml);
                });
            });
        });
    }

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

     * @param expectedMode the expected CRUD mode
     */
    protected void verifyCrudMode(final int crudMode, final int expectedMode) {
        if (crudMode != expectedMode) {
            throwValidationError(messages -> {
                messages.addErrorsCrudInvalidMode(GLOBAL, String.valueOf(expectedMode), String.valueOf(crudMode));
            }, this::asListHtml);
        }
    }