private void handleMessagesToTheUser()

in enforcer-rules/src/main/java/org/apache/maven/enforcer/rules/RequirePluginVersions.java [248:297]
42 lines of code
7 McCabe index (conditional complexity)

    private void handleMessagesToTheUser(MavenProject project, List<Plugin> failures) throws EnforcerRuleException {
        StringBuilder newMsg = new StringBuilder();
        newMsg.append("Some plugins are missing valid versions or depend on Maven ");
        newMsg.append(runtimeInformation.getMavenVersion());
        newMsg.append(" defaults");
        handleBanMessages(newMsg);
        newMsg.append(System.lineSeparator());
        for (Plugin plugin : failures) {
            newMsg.append("   ");
            newMsg.append(plugin.getGroupId());
            newMsg.append(":");
            newMsg.append(plugin.getArtifactId());

            try {
                newMsg.append(". \tThe version currently in use is ");

                Plugin currentPlugin = findCurrentPlugin(plugin, project);

                if (currentPlugin == null) {
                    newMsg.append("unknown");
                } else {
                    newMsg.append(currentPlugin.getVersion());

                    if (PluginWrapper.isVersionFromDefaultLifecycleBindings(currentPlugin)
                            .orElse(false)) {
                        newMsg.append(" via default lifecycle bindings");
                    } else {
                        String msg = PluginWrapper.isVersionFromSuperpom(currentPlugin)
                                .filter(b -> b)
                                .map(t -> " via super POM")
                                // for Maven 3.6.0 or before (MNG-6593 / MNG-6600)
                                .orElse(" via super POM or default lifecycle bindings");
                        newMsg.append(msg);
                    }
                }
            } catch (Exception e) {
                // lots can go wrong here. Don't allow any issues trying to
                // determine the issue stop me
                getLog().debug("Exception while determining plugin Version " + e.getMessage());
                newMsg.append(". Unable to determine the plugin version.");
            }
            newMsg.append(System.lineSeparator());
        }
        String message = getMessage();
        if (message != null && !message.isEmpty()) {
            newMsg.append(message);
        }

        throw new EnforcerRuleException(newMsg.toString());
    }