String path;
        String location;

        if (file.getExists() != null && !file.getExists().isEmpty()) {
            path = file.getExists();
            location = "exists";
        } else if (file.getMissing() != null && !file.getMissing().isEmpty()) {
            path = file.getMissing();
            location = "missing";
        } else {
            return;
        }

                            }
                        } catch (InterpolationException e) {
                            addInterpolationProblem(problems, file, oldExists, e, "exists");
                        }
                    } else {
                        String oldMissing = file.getMissing();
                        if (isNotEmpty(oldMissing)) {
                            try {

                        ModelProblem problem = new org.apache.maven.internal.impl.model.DefaultModelProblem(
                                "Child module " + moduleFile + " of " + pomFile + " does not exist",
                                ModelProblem.Severity.ERROR,
                                ModelProblem.Version.BASE,
                                model,
                                -1,