toolchains = new PersistedToolchains(new MavenToolchainsStaxReader().read(in));
            } catch (Exception e) {
                throw new MisconfiguredToolchainException(
                        "Cannot read toolchains file at " + userToolchainsFile.getAbsolutePath(), e);
            }

        } else if (userToolchainsFile != null) {

                    return PersistedToolchains.newInstance();
                }
                toolchains = request.getSession()
                        .getService(ToolchainsXmlFactory.class)
                        .read(XmlReaderRequest.builder()
                                .inputStream(is)
                                .location(toolchainsSource.getLocation())
                                .strict(true)