import org.apache.maven.settings.Server;
import org.apache.maven.settings.building.DefaultSettingsProblem;
import org.apache.maven.settings.building.SettingsProblem;
import org.apache.maven.settings.building.SettingsProblem.Severity;
import org.codehaus.plexus.components.secdispatcher.SecDispatcher;
import org.codehaus.plexus.components.secdispatcher.SecDispatcherException;

/**
 * Decrypts passwords in the settings.
 *

    String getMessage();

    /**
     * Gets the severity level of this problem.
     *
     * @return the severity level of this problem, never {@code null}
     */
    @Nonnull
    Severity getSeverity();

    /**
     * The different severity levels for a problem, in decreasing order.
     *
     * @since 4.0.0
     */
    @Experimental
    enum Severity {
        FATAL, //
        ERROR, //

                problems.add(Problem.Severity.WARNING, e.getMessage(), e.getLineNumber(), e.getColumnNumber(), e);
            }
        } catch (ToolchainsParseException e) {
            problems.add(
                    Problem.Severity.FATAL,
                    "Non-parseable toolchains " + toolchainsSource.getLocation() + ": " + e.getMessage(),

        }
    }

    public boolean hasFatalErrors() {
        return severities.contains(ModelProblem.Severity.FATAL);
    }

    public boolean hasErrors() {
        return severities.contains(ModelProblem.Severity.ERROR) || severities.contains(ModelProblem.Severity.FATAL);
    }

    @Override
    public List<ModelProblem> getProblems() {
        return problems;
    }

     *
     * @return The message describing this problem, never {@code null}.
     */
    String getMessage();

    /**
     * Gets the severity level of this problem.
     *
     * @return The severity level of this problem, never {@code null}.
     */
    Severity getSeverity();

    /**
     * Gets the applicable maven version/validation level of this problem
     * @return The version, never {@code null}.

    }

    @Override
    public void setSource(String source) {
        this.source = source;
    }

    @Override
    public void add(Problem.Severity severity, String message, int line, int column, Exception cause) {
        Problem problem = new DefaultProblem(message, severity, source, line, column, cause);

        problems.add(problem);
    }

 */
@Deprecated(since = "4.0.0")
public interface ProblemCollector {

    /**
     * Adds the specified problem.
     * Either message or exception is required
     *
     * @param severity The severity of the problem, must not be {@code null}.
     * @param message The detail message of the problem, may be {@code null}.
     * @param line The one-based index of the line containing the problem or {@code -1} if unknown.

        collector.setSource("pom.xml");
        collector.add(Problem.Severity.ERROR, "Error message", 10, 5, null);
        collector.add(Problem.Severity.WARNING, "Warning message", 15, 3, null);

        List<Problem> problems = collector.getProblems();
        assertEquals(2, problems.size(), "Should collect both problems");
        assertEquals(Problem.Severity.ERROR, problems.get(0).getSeverity(), "First problem should be ERROR");

     *
     * @return The message describing this problem, never {@code null}.
     */
    String getMessage();

    /**
     * Gets the severity level of this problem.
     *
     * @return The severity level of this problem, never {@code null}.
     */
    Severity getSeverity();

        collector.add(null, "MESSAGE1", -1, -1, null);

        Exception e2 = new Exception();
        collector.add(Severity.WARNING, null, 42, 127, e2);

        assertEquals(2, collector.getProblems().size());

        Problem p1 = collector.getProblems().get(0);
        assertEquals(Severity.ERROR, p1.getSeverity());
        assertEquals("MESSAGE1", p1.getMessage());
        assertEquals(-1, p1.getLineNumber());