<type>boolean</type>
          <description>
            Marks this Mojo as being thread-safe, i.e. the Mojo safely supports concurrent execution during parallel
            builds. Mojos without this annotation will make Maven output a warning when used during a parallel build
            session.
            @since Maven 3.0.
          </description>
          <defaultValue>false</defaultValue>
        </field>

          <list size="5">
            <item index="0" class="java.lang.String" itemvalue="nobr" />
            <item index="1" class="java.lang.String" itemvalue="noembed" />
            <item index="2" class="java.lang.String" itemvalue="comment" />
            <item index="3" class="java.lang.String" itemvalue="noscript" />
            <item index="4" class="java.lang.String" itemvalue="javascript" />
          </list>
        </value>

        <constraint name="__context__" within="" contains="" />
        <constraint name="src" within="" contains="" />
        <constraint name="sep" nameOfExprType="String" exprTypeWithinHierarchy="true" within="" contains="" />
        <constraint name="callJoin" regexp="join" within="" contains="" />
        <constraint name="callCollect" regexp="collect" within="" contains="" />

   |
   | For example, if you have an integration testing plugin - like cactus - that needs to know where
   | your Tomcat instance is installed, you can provide a variable here such that the variable is
   | dereferenced during the build process to configure the cactus plugin.
   |
   | As noted above, profiles can be activated in a variety of ways. One way - the activeProfiles

              <!--
                To avoid "java.io.IOException: User limit of inotify watches reached" under JDK10.
                Presumably we don't need inotify, since we don't intend to change files during the
                build?
                -->
              <extraJvmArgs>-Dgwt.watchFileChanges=false</extraJvmArgs>
            </configuration>
          </execution>
          <!--

          <version>1.0.0/1.3.0</version>
          <code>
    public static final String USER_LEVEL = "user-level";
    public static final String PROJECT_LEVEL = "project-level";
    public static final String GLOBAL_LEVEL = "global-level";

    private String sourceLevel = USER_LEVEL;
    private boolean sourceLevelSet = false;

    public void setSourceLevel(String sourceLevel) {
        if (sourceLevelSet) {

          <name>modelVersion</name>
          <version>1.1.0+</version>
          <type>String</type>
          <description>The version of the underlying metadata model.</description>
        </field>
        <field>
          <name>groupId</name>
          <version>1.0.0+</version>
          <type>String</type>