.builder()
                    .warning("Parameter '")
                    .warning(name)
                    .warning("' is unknown for plugin '")
                    .warning(mojoExecution.getArtifactId())
                    .warning(":")
                    .warning(mojoExecution.getVersion())
                    .warning(":")
                    .warning(mojoExecution.getGoal());

    // notice to self: what was this method supposed to do?
    //
    /**
     * <b>Warning</b>: ignored.
     */
    @Override
    public void returnComponentLogger(String role) {}

    /**
     * <b>Warning</b>: ignored.
     */
    @Override
    public void returnComponentLogger(String role, String hint) {}

    /**
     * <b>Warning</b>: ignored (always return <code>0</code>).
     */
    @Override

                validateBannedCharacters(
                        problems, "mirrors.mirror.id", Severity.WARNING, mirror.getId(), null, ILLEGAL_REPO_ID_CHARS);

                if ("local".equals(mirror.getId())) {
                    addViolation(
                            problems,
                            Severity.WARNING,
                            "mirrors.mirror.id",
                            null,

 * {@code 0x7F}), and to strings containing such characters.
 *
 * <p>ASCII utilities also exist in other classes of this package:
 *
 * <ul>
 *   <!-- TODO(kevinb): how can we make this not produce a warning when building gwt javadoc? -->
 *   <li>{@link StandardCharsets#US_ASCII} specifies the {@code Charset} of ASCII characters.
 *   <li>{@link CharMatcher#ascii} matches ASCII characters and provides text processing methods

    private String logDeprecatedMojo(MojoDescriptor mojoDescriptor) {
        return messageBuilderFactory
                .builder()
                .warning("Goal '")
                .warning(mojoDescriptor.getGoal())
                .warning("' is deprecated: ")
                .warning(mojoDescriptor.getDeprecated())
                .toString();
    }

                "Message should contain second error details");

        assertTrue(
                !message.contains("[WARNING]") || message.contains("[WARNING] Deprecated plugin usage"),
                "Warnings should be filtered when errors are present or shown if explicitly included");
    }

    @Test
    void testExceptionMessageWithOnlyWarnings() {

  Don't use these flags. Using deprecated flags causes the server to print a warning. Using a removed flag causes the server to abort the startup.

* The following deprecated flags were removed from `kubelet`:

  * `api-servers` - add apiserver addresses to the kubeconfig file instead.

  Don't use these flags. Using deprecated flags causes the kubelet to print a warning. Using a removed flag causes the kubelet to abort the startup.

        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");

    @Override
    public boolean isWarnEnabled() {
        return logger.isLoggable(Level.WARNING);
    }

    @Override
    public void warn(final String message) {
        logger.logp(Level.WARNING, sourceClass, null, message);
    }

    @Override
    public void warn(final String message, final Throwable t) {
        logger.logp(Level.WARNING, sourceClass, null, message, t);
    }

    @Override

    /**
     * Success/completion icon.
     */
    SUCCESS('✓', "[OK]"),

    /**
     * Error/failure icon.
     */
    ERROR('✗', "[ERROR]"),

    /**
     * Warning icon.
     */
    WARNING('⚠', "[WARNING]"),

    /**
     * Detail/bullet point icon.
     */
    DETAIL('•', "-"),

    /**
     * Action/arrow icon.
     */
    ACTION('→', ">");