* @since 8.8
     */
    List<Location> getLocations();

    /**
     * Returns the list of solutions.
     *
     * @return the solutions
     * @since 8.8
     */
    List<Solution> getSolutions();

    /**
     * Returns the failure associated with this problem.
     *
     * @return the failure
     * @since 8.8
     */
    @Nullable
    FailureContainer getFailure();

    /**

        return problemDefinition;
    }

    @Nullable
    @Override
    public String getContextualLabel() {
        return contextualLabel;
    }

    @Override
    public List<String> getSolutions() {
        return solutions;
    }

    @Nullable
    @Override
    public String getDetails() {
        return details;
    }

    @Override
    public List<ProblemLocation> getLocations() {

    public Details getDetails() {
        return details;
    }

    @Override
    public List<Location> getLocations() {
        return locations;
    }

    @Override
    public List<Solution> getSolutions() {
        return solutions;
    }

    @Nullable
    @Override
    public FailureContainer getFailure() {
        return failure;
    }

    @Override

    public DefaultProblemBuilder(Problem problem) {
        this.id = problem.getDefinition().getId();
        this.contextualLabel = problem.getContextualLabel();
        this.solutions = new ArrayList<String>(problem.getSolutions());
        this.severity = problem.getDefinition().getSeverity();

        locations.addAll(problem.getLocations());

        this.details = problem.getDetails();

    }

    @Override
    String getContextualLabel() {
       contextualLabel
    }

    @Override
    String getDetails() {
       details
    }

    @Override
    List<String> getSolutions() {
        solutions
    }

    @Override
    List<ProblemLocation> getLocations() {
        locations
    }

    <T extends ProblemLocation> T getSingleLocation(Class<T> locationType) {

                toInternalContextualLabel(problem.getContextualLabel()),
                toInternalLocations(problem.getLocations()),
                toInternalSolutions(problem.getSolutions()),
                toInternalAdditionalData(problem.getAdditionalData()),
                toInternalFailure(problem.getException())
            )
        );
    }

    @Nullable

                toProblemDetails(basicProblemDetails.getDetails()),
                toLocations(basicProblemDetails.getLocations()),
                toSolutions(basicProblemDetails.getSolutions()),
                toAdditionalData(basicProblemDetails.getAdditionalData()),
                toFailureContainer(basicProblemDetails)
            );