// one by one, and try to find a matching prefix.
        if (result == null && build != null) {
            result = resolveFromProject(request, build.getPlugins());
            if (result == null && management != null) {
                result = resolveFromProject(request, management.getPlugins());
            }
        }

        if (result == null) {
            throw new NoPluginFoundForPrefixException(

                        .collect(Collectors.toSet());
                for (BuildStep step : planSteps) {
                    MavenProject project = step.project;
                    for (Plugin plugin : project.getBuild().getPlugins()) {
                        for (PluginExecution execution : plugin.getExecutions()) {
                            for (String goal : execution.getGoals()) {

        Build build = effectiveModel.getBuild();
        if (build != null) {
            // Check build/plugins - these are the actual plugins used in the build
            for (Plugin plugin : build.getPlugins()) {
                String pluginKey = getPluginKey(plugin);
                PluginUpgrade upgrade = pluginUpgrades.get(pluginKey);
                if (upgrade != null) {

            // pluginArtifacts
            Set<Artifact> pluginArtifacts = new HashSet<>();
            for (Plugin plugin : project.getModel().getDelegate().getBuild().getPlugins()) {
                Artifact artifact = repositorySystem.createPluginArtifact(new org.apache.maven.model.Plugin(plugin));

                if (artifact != null) {
                    pluginArtifacts.add(artifact);

    }

    /**
     * @return a Map of plugins field with {@code Plugins#getKey()} as key
     * @see Plugin#getKey()
     */
    public Map<String, Plugin> getPluginsAsMap() {
        return getPlugins().stream().collect(Collectors.toMap(plugin -> plugin.getKey(), plugin -> plugin));
    }
            ]]>
          </code>
        </codeSegment>
        <codeSegment>
          <version>4.1.0+</version>

                    .collect(Collectors.joining("\n\t"));
            PluginIncompatibleException pie = new PluginIncompatibleException(
                    pluginDescriptor.getPlugin(),
                    "\nThe plugin " + pluginDescriptor.getId() + " has unmet prerequisites: \n\t" + messages);
            prerequisiteExceptions.forEach(pie::addSuppressed);
            throw pie;
        }
    }