buffer.append(", ");
            }
            buffer.append("line ").append(getLineNumber());
        }
        if (getColumnNumber() > 0) {
            if (!buffer.isEmpty()) {
                buffer.append(", ");
            }
            buffer.append("column ").append(getColumnNumber());
        }
        return buffer.toString();
    }

    @Override
    public String toString() {

                buffer.append(", ");
            }
            buffer.append("line ").append(getLineNumber());
        }

        if (getColumnNumber() > 0) {
            if (buffer.length() > 0) {
                buffer.append(", ");
            }
            buffer.append("column ").append(getColumnNumber());
        }

        return buffer.toString();
    }

    public Exception getException() {
        return exception;

        } catch (XMLStreamException e) {
            throw new MetadataParseException(
                    e.getMessage(),
                    e.getLocation().getLineNumber(),
                    e.getLocation().getColumnNumber(),
                    e);
        }
    }

    public Metadata read(InputStream input, Map<String, ?> options) throws IOException {
        Objects.requireNonNull(input, "input cannot be null");

            return false;
        }

        final ProjectBuildingResult r = (ProjectBuildingResult) o;

        return r.getProblems().stream()
                .anyMatch(p -> p.getLineNumber() == lineNumber && p.getColumnNumber() == columnNumber);
    }

    @Override
    public void describeTo(Description description) {
        description
                .appendText("a ProjectBuildingResult with location ")

     * @return The one-based index of the column containing the problem or non-positive value if unknown.
     */
    int getColumnNumber();

    /**
     * Gets the location of the problem. The location is a user-friendly combination of the values from
     * {@link #getSource()}, {@link #getLineNumber()} and {@link #getColumnNumber()}. The exact syntax of the returned
     * value is undefined.
     *

        assertEquals(-1, problem.getColumnNumber());

        problem = new DefaultProblem(null, null, null, -1, 42, null);
        assertEquals(42, problem.getColumnNumber());

        problem = new DefaultProblem(null, null, null, -1, Integer.MAX_VALUE, null);
        assertEquals(Integer.MAX_VALUE, problem.getColumnNumber());

        // this case is not specified, might also return -1

                            return problem.getLineNumber();
                        }

                        @Override
                        public int getColumnNumber() {
                            return problem.getColumnNumber();
                        }

                        @Override
                        public String getLocation() {

                cause);
        this.lineNumber = lineNumber;
        this.columnNumber = columnNumber;
    }

    public int getColumnNumber() {
        return columnNumber;
    }

    public int getLineNumber() {
        return lineNumber;
    }

    }

    public ModelParserException(Throwable cause) {
        this(null, cause);
    }

    public int getLineNumber() {
        return lineNumber;
    }

    public int getColumnNumber() {
        return columnNumber;
    }

        this.location = location;
    }

    @Override
    public int getLineNumber() {
        return location.getLineNumber();
    }

    @Override
    public int getColumnNumber() {
        return location.getColumnNumber();
    }

    @Override
    public int getCharacterOffset() {
        return location.getCharacterOffset();
    }

    @Override
    public String getPublicId() {