} catch (XmlReaderException ne) {
                    // still unreadable even in non-strict mode, rethrow original error
                    throw e;
                }

                Severity severity = request.isProjectBuild() ? Severity.ERROR : Severity.WARNING;
                problems.add(
                        severity,
                        ModelProblem.Version.V20,

                                    e.getModelId(), e.getMessage(), pomFile != null ? pomFile.toFile() : null, e);
                        }
                        // validation error, continue project building and delay failing to help IDEs
                        error = e;
                    }

                    modelProblems = result.getProblems();

                    initProject(project, Collections.emptyMap(), result);

        validateStringNotEmpty("modelVersion", problems, Severity.ERROR, Version.BASE, m.getModelVersion(), m);

        validateCoordinateId("groupId", problems, m.getGroupId(), m);

        validateCoordinateId("artifactId", problems, m.getArtifactId(), m);

        validateStringNotEmpty("packaging", problems, Severity.ERROR, Version.BASE, m.getPackaging(), m);

        if (!m.getModules().isEmpty()) {

    AtomicHelper helper;
    Throwable thrownUnsafeFailure = null;
    Throwable thrownAtomicReferenceFieldUpdaterFailure = null;

    try {
      helper = new UnsafeAtomicHelper();
    } catch (Exception | Error unsafeFailure) { // sneaky checked exception
      thrownUnsafeFailure = unsafeFailure;
      // catch absolutely everything and fall through to our 'SafeAtomicHelper'

        return (Comparator) Ordering.natural().reverse();
      } else {
        return reverse(forwardComparator);
      }
    }

    // If we inline this, we get a javac error.
    private static <T extends @Nullable Object> Ordering<T> reverse(Comparator<T> forward) {
      return Ordering.from(forward).reverse();
    }

    @Override
    @ParametricNullness