*
 * <p>The allowed row and column keys must be supplied when the table is created. The table always
 * contains a mapping for every row key / column pair. The value corresponding to a given row and
 * column is null unless another value is provided.
 *
 * <p>The table's size is constant: the product of the number of supplied row keys and the number of

     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *
     * @return The one-based index of the column containing the error or non-positive value if unknown.
     */
    public int getColumnNumber() {
        return columnNumber;
    }

     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *
     * @return The one-based index of the column containing the error or non-positive value if unknown.
     */
    public int getColumnNumber() {
        return columnNumber;
    }

     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *
     * @return The one-based index of the column containing the error or non-positive value if unknown.
     */
    public int getColumnNumber() {
        return columnNumber;
    }

      table.put(row, 2, 'b');
    }
  }

  private static void populateForColumnKeySet(
      Table<Integer, String, Character> table, String[] elements) {
    for (String column : elements) {
      table.put(1, column, 'a');
      table.put(2, column, 'b');
    }
  }

  private static void populateForValues(
      Table<Integer, Character, String> table, String[] elements) {
    for (int i = 0; i < elements.length; i++) {

      table.put(row, 2, 'b');
    }
  }

  private static void populateForColumnKeySet(
      Table<Integer, String, Character> table, String[] elements) {
    for (String column : elements) {
      table.put(1, column, 'a');
      table.put(2, column, 'b');
    }
  }

  private static void populateForValues(
      Table<Integer, Character, String> table, String[] elements) {
    for (int i = 0; i < elements.length; i++) {

import java.util.TreeMap;
import javax.annotation.CheckForNull;

/**
 * Implementation of {@code Table} whose row keys and column keys are ordered by their natural
 * ordering or by supplied comparators. When constructing a {@code TreeBasedTable}, you may provide
 * comparators for the row keys and the column keys, or you may use natural ordering for both.
 *

    }

    @Override
    public void add(ModelProblemCollectorRequest req) {
        int line = -1;
        int column = -1;
        String source = null;
        String modelId = null;

        if (req.getLocation() != null) {
            line = req.getLocation().getLineNumber();
            column = req.getLocation().getColumnNumber();
            if (req.getLocation().getSource() != null) {

     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *
     * @return The one-based index of the column containing the error or non-positive value if unknown.
     */
    public int getColumnNumber() {
        return columnNumber;
    }

    }

    @Override
    public void add(SettingsProblem.Severity severity, String message, int line, int column, Exception cause) {
        if (line <= 0 && column <= 0 && (cause instanceof SettingsParseException)) {
            SettingsParseException e = (SettingsParseException) cause;
            line = e.getLineNumber();
            column = e.getColumnNumber();
        }