protected static final String OIC_CLIENT_ID = "oic.client.id";

    protected static final String OIC_SCOPE = "oic.scope";

    protected static final String OIC_REDIRECT_URL = "oic.redirect.url";

    protected static final String OIC_TOKEN_SERVER_URL = "oic.token.server.url";

    protected static final String OIC_CLIENT_SECRET = "oic.client.secret";

            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });
        return redirect(getClass());
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse update(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.EDIT);

            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });
        return redirect(getClass());
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse update(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.EDIT);

            logger.warn("Failed to change password for {}", username, e);
            throwValidationError(messages -> messages.addErrorsFailedToChangePassword(GLOBAL), toIndexPage);
        }
        return redirect(getClass());
    }

    private void validatePasswordForm(final ProfileForm form, final VaErrorHook validationErrorLambda) {
        validate(form, messages -> {}, validationErrorLambda);

            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });
        return redirect(getClass());
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse update(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.EDIT);

            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });
        return redirect(getClass());
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse update(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.EDIT);

        defaultSettings.put("onelogin.saml2.idp.single_sign_on_service.binding", "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect");
        defaultSettings.put("onelogin.saml2.idp.single_logout_service.response.url", "");
        defaultSettings.put("onelogin.saml2.idp.single_logout_service.binding", "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect");
        defaultSettings.put("onelogin.saml2.security.nameid_encrypted", "false");

            logger.error("Failed to write an image file: {}", fileName, e);
            throwValidationError(messages -> messages.addErrorsFailedToWriteDesignImageFile(GLOBAL), this::asListHtml);
        }
        return redirect(getClass());
    }

    private boolean checkFileType(final String fileName, final String[] exts) {
        if (fileName == null) {
            return false;
        }

            }
        }).orElse(() -> {
            throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
        });
        return redirect(getClass());
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse delete(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.DETAILS);

        final Artifact artifact = new Artifact(form.name, form.version, null);
        deleteArtifact(artifact);
        saveInfo(messages -> messages.addSuccessDeletePlugin(GLOBAL, artifact.getFileName()));
        return redirect(getClass());
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse install(final InstallForm form) {
        validate(form, messages -> {}, () -> asHtml(path_AdminPlugin_AdminPluginInstallpluginJsp));