bean-validation quickstart fails to validate due to non-compliant arquillian.xml

    <element name="container">
        <complexType>
            <choice minOccurs="1" maxOccurs="unbounded">
                <element ref="tns:configuration" minOccurs="0"  maxOccurs="1" />
                <!--
                <element ref="tns:dependencies" minOccurs="0" maxOccurs="1" />
                -->
                <element ref="tns:protocol" minOccurs="0" maxOccurs="unbounded" />
            </choice>
            <attribute name="qualifier" type="string" use="required" />
            <attribute name="default" type="boolean" use="optional" default="false" />
            <attribute name="mode" use="optional" default="suite">
                <simpleType>
                    <restriction base="string">
                        <enumeration value="suite" />
                        <enumeration value="class" />
                        <enumeration value="manual" />
                        <enumeration value="custom" />
                    </restriction>
                </simpleType>
            </attribute>
        </complexType>
        <unique name="unique-protocol-within-container">
            <annotation>
                <documentation>
                    @type must be unique between all
                    protocols in a container.
                </documentation>
            </annotation>
            <selector xpath="tns:protocol" />
            <field xpath="@type" />
        </unique>
    </element>

    <container qualifier="jboss" default="true">
        <!-- By default, arquillian will use the JBOSS_HOME environment variable.  Alternatively, the configuration below can be uncommented. -->
        <!--<configuration> -->
        <property name="jbossHome">C:/tools/wildfly-9.0.0.Final</property>
        <!--</configuration> -->
    </container>