javaee:jndiEnvironmentRefsGroup 

This group keeps the usage of the contained JNDI environment
reference elements consistent across Java EE deployment descriptors.

Element Group Information

Model

javaee:env-entry* , javaee:ejb-ref* , javaee:ejb-local-ref* , javaee:service-ref* , javaee:resource-ref* , javaee:resource-env-ref* , javaee:message-destination-ref* , javaee:persistence-context-ref* , javaee:persistence-unit-ref* , javaee:post-construct* , javaee:pre-destroy*
Children: javaee:ejb-local-ref, javaee:ejb-ref, javaee:env-entry, javaee:message-destination-ref, javaee:persistence-context-ref, javaee:persistence-unit-ref, javaee:post-construct, javaee:pre-destroy, javaee:resource-env-ref, javaee:resource-ref, javaee:service-ref

Source 

<xsd:group name="jndiEnvironmentRefsGroup">
  <xsd:annotation>
    <xsd:documentation>This group keeps the usage of the contained JNDI environment reference elements consistent across Java EE deployment descriptors.</xsd:documentation>
  </xsd:annotation>
  <xsd:sequence>
    <xsd:element name="env-entry" type="javaee:env-entryType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="ejb-ref" type="javaee:ejb-refType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="ejb-local-ref" type="javaee:ejb-local-refType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:group ref="javaee:service-refGroup"/>
    <xsd:element name="resource-ref" type="javaee:resource-refType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="resource-env-ref" type="javaee:resource-env-refType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="message-destination-ref" type="javaee:message-destination-refType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="persistence-context-ref" type="javaee:persistence-context-refType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="persistence-unit-ref" type="javaee:persistence-unit-refType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="post-construct" type="javaee:lifecycle-callbackType" minOccurs="0" maxOccurs="unbounded"/>
    <xsd:element name="pre-destroy" type="javaee:lifecycle-callbackType" minOccurs="0" maxOccurs="unbounded"/>
  </xsd:sequence>
</xsd:group>