messages.add(message);
    }

    public String toString() {
        return render("");
    }

    public String render(String indentation) {
        if (messages.size() == 0) {
            return indentation + "There were no validation errors.";
        }

        StringBuilder message = new StringBuilder();

        //        if ( messages.size() == 1 )
        //        {

        assertEquals(4, problems.messages.size());
        assertContains(problems.messages.get(0), "'mirrors.mirror.id' must not be 'local'");
        assertContains(problems.messages.get(1), "'mirrors.mirror.url' for local is missing");
        assertContains(problems.messages.get(2), "'mirrors.mirror.mirrorOf' for local is missing");

	}

	var messages diag.Messages = make([]diag.Message, 0)

	if minor <= 21 {
		// ENHANCED_RESOURCE_SCOPING
		if err := checkPilot(cli, ctx.IstioNamespace(), &messages); err != nil {
			return nil, err
		}
	}
	if minor <= 21 {
		if err := checkPassthroughTargetPorts(cli, &messages); err != nil {
			return nil, err
		}

     * @param cause The cause of the problem, may be {@code null}.
     */
    void add(Problem.Severity severity, String message, int line, int column, Exception cause);

    /**
     * The next messages will be bound to this source. When calling this method again, previous messages keep
     * their source, but the next messages will use the new source.
     *
     * @param source a source
     */
    void setSource(String source);

    /**
     * Color style for transfer messages.
     * @since 4.0.0
     */
    @Config(defaultValue = MAVEN_STYLE_TRANSFER_DEFAULT)
    public static final String MAVEN_STYLE_TRANSFER = MAVEN_STYLE_PREFIX + MAVEN_STYLE_TRANSFER_NAME;

    /**
     * Color style for trace messages.
     * @since 4.0.0
     */
    @Config(defaultValue = MAVEN_STYLE_TRACE_DEFAULT)

						fmt.Fprintln(cmd.ErrOrStderr(), "\t", a)
					}
				}
				fmt.Fprintln(cmd.ErrOrStderr())
			}

			// Get messages for output
			outputMessages := result.Messages.SetDocRef("istioctl-analyze").FilterOutLowerThan(outputThreshold.Level)

			// Print all the messages to stdout in the specified format
			output, err := formatting.Print(outputMessages, msgOutputFormat, colorize)
			if err != nil {
				return err

see [this guide](./platforms/documentation/docs/README.md).

### Creating commits and writing commit messages

The commit messages that accompany your code changes are an important piece of documentation. Please follow these guidelines when creating commits:

* [Write good commit messages.](https://cbea.ms/git-commit/#seven-rules)

        assertViolations(result, 0, 4, 0);

        List<String> messages = result.getErrors();

        assertTrue(messages.contains("'modelVersion' is missing."));
        assertTrue(messages.contains("'groupId' is missing."));
        assertTrue(messages.contains("'artifactId' is missing."));
        assertTrue(messages.contains("'version' is missing."));
        // type is inherited from the super pom
    }

     *
     * @throws MojoExecutionException if an unexpected problem occurs.
     * Throwing this exception causes a "BUILD ERROR" message to be displayed.
     * @throws MojoFailureException if an expected problem (such as a compilation failure) occurs.
     * Throwing this exception causes a "BUILD FAILURE" message to be displayed.
     */
    void execute() throws MojoExecutionException, MojoFailureException;

    /**

     *
     * @param message
     */
    public MojoFailureException(String message) {
        super(message);
    }

    /**
     * Construct a new <code>MojoFailureException</code> exception wrapping an underlying <code>Throwable</code>
     * and providing a <code>message</code>.
     *
     * @param message
     * @param cause
     * @since 2.0.9
     */