this.element = element;
            this.sectionName = sectionName;
        }
    }

    /**
     * Fixes duplicate plugins in plugins and pluginManagement sections.
     */
    private boolean fixDuplicatePlugins(Document pomDocument, UpgradeContext context) {
        Element root = pomDocument.root();

        // Collect all build elements to process

            if (!unversionedPlugins.isEmpty()) {
                logger.warn("Version not locked for default bindings plugins " + unversionedPlugins
                        + ", you should define versions in pluginManagement section of your " + "pom.xml or parent");
            }
        }

        private void checkThreadSafety(BuildPlan buildPlan) {
            if (threads > 1) {

      <fields>
        <!-- [ jdcasey:06-Mar-2005 ] Added to handle version management, etc. for
          | plugins to be used in sub-projects. -->
        <field>
          <name>pluginManagement</name>
          <version>4.0.0+</version>
          <required>false</required>
          <description>Default plugin information to be made available for reference by projects