}
    }

    /**
     * DuplicateMerger
     */
    protected static class DuplicateMerger extends MavenModelMerger {

        public void mergePlugin(Plugin target, Plugin source) {
            super.mergePlugin(target, source, false, Collections.emptyMap());
        }
    }

    @Override

                    Object key = getPluginKey(element);
                    Plugin managedPlugin = managedPlugins.get(key);
                    if (managedPlugin != null) {
                        mergePlugin(element, managedPlugin, false, context);
                    }
                }
            }
        }

        @Override
        protected void mergePlugin_Executions(

                for (Plugin element : src) {
                    Object key = getPluginKey(element);
                    Plugin existing = master.get(key);
                    if (existing != null) {
                        mergePlugin(existing, element, sourceDominant, context);

                        if (!pending.isEmpty()) {
                            predecessors.put(key, pending);
                            pending = new ArrayList<>();