<version>1.0.0</version>
      <description>A single supplement</description>
      <fields>
        <field>
          <name>project</name>
          <version>1.0.0</version>
          <description>Snippets of POM xml files used to supplement the data model.</description>
          <type>DOM</type>
        </field>
      </fields>
    </class>
  </classes>

      <description>A plugin parameter expression supported by Maven</description>
      <fields>
        <field>
          <version>1.0.0</version>
          <name>syntax</name>
          <description>The syntax of the expression</description>
          <type>String</type>
          <required>true</required>
        </field>
        <field>
          <version>1.0.0</version>
          <name>description</name>

            <multiplicity>*</multiplicity>
          </association>
        </field>
        <field>
          <name>sourceEncoding</name>
          <version>1.1.0</version>
          <description>
            Source encoding of the remote resources contained in the bundle.
          </description>
          <type>String</type>
        </field>
      </fields>
    </class>
  </classes>

      <description>Root element of the {@code lifecycle.xml} file.</description>
      <fields>
        <field>
          <name>lifecycles</name>
          <version>1.0.0</version>
          <association xml.itemsStyle="flat">
            <type>Lifecycle</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
    </class>
    <class>
      <name>Lifecycle</name>

      <name>ExtensionDescriptor</name>
      <version>1.0.0</version>
      <description><![CDATA[Root element of the <code>extension.xml</code> file.]]></description>
      <fields>
        <field>
          <name>exportedPackages</name>
          <version>1.0.0</version>
          <association>
            <type>String</type>
            <multiplicity>*</multiplicity>
          </association>

      <version>1.0.0+</version>
      <fields>
        <field>
          <name>toolchains</name>
          <version>1.0.0+</version>
          <description>The toolchain instance definition.</description>
          <association xml.itemsStyle="flat">
            <type>ToolchainModel</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
    </class>
    <class>

      <releases>
        <!-- That's the boolean POM field we would like to interpolate -->
        <enabled>${releasesEnabled}</enabled>
      </releases>
    </repository>
  </repositories>

  <build>
    <resources>
      <resource>
        <directory>src/main/resources</directory>
        <!-- That's the boolean POM field we would like to interpolate -->
        <filtering>${filter.resources}</filtering>

      <option name="IF_BRACE_FORCE" value="1" />
      <option name="DOWHILE_BRACE_FORCE" value="1" />
      <option name="WHILE_BRACE_FORCE" value="1" />
      <option name="FOR_BRACE_FORCE" value="1" />
      <option name="FIELD_ANNOTATION_WRAP" value="0" />
    </codeStyleSettings>
    <codeStyleSettings language="PROTO">
      <indentOptions>
        <option name="INDENT_SIZE" value="2" />
        <option name="CONTINUATION_INDENT_SIZE" value="4" />

          <field-name>source</field-name>
        </requirement>
        <requirement>
          <role>org.codehaus.plexus.PlexusContainer</role>
          <role-hint>default</role-hint>
          <field-name>container</field-name>
        </requirement>
        <requirement>
          <role>org.apache.maven.plugin.LegacySupport</role>
          <role-hint>default</role-hint>
          <field-name>legacySupport</field-name>

    util.concurrent tests under Guava.

    The problem is that GWT responds poorly to two .gwt.xml files in the same
    Java package; see https://goo.gl/pRV3Yn for details.

    The summary is that it ignores one file in favor of the other.
    util.concurrent, like nearly all our packages, has two .gwt.xml files: one
    for prod and one for tests. However, unlike our other packages, as of this