There is a conflict in the current use of the jndi-name from ejb-local-refType and ejb-refTypes because they define both a jndi-name element, and refer to the jboss:resourceGroup: | <xsd:complexType name="ejb-local-refType"> | <xsd:sequence> | <xsd:element name="description" type="javaee:descriptionType" minOccurs="0" | maxOccurs="unbounded"/> | <xsd:element name="ejb-ref-name" type="javaee:ejb-ref-nameType" minOccurs="0"/> | ... | <xsd:group ref="jboss:resourceGroup"/> | <xsd:element name="jndi-name" type="javaee:jndi-nameType" minOccurs="0"/> | </xsd:sequence> | | ... | <!-- Bring resourceGroup into jboss namespace --> | <xsd:group name="resourceGroup"> | <xsd:sequence> | <!-- In jboss xml we allow the use of jndi-name instead of mapped-name --> | <xsd:choice> | <xsd:element name="jndi-name" type="javaee:jndi-nameType" | minOccurs="0" /> | <xsd:element name="mapped-name" type="javaee:xsdStringType" | minOccurs="0" /> | </xsd:choice> | It looks like the jndi-name should just be dropped and just the jboss:resourceGroup used. By the way, I use the http://www.oxygenxml.com/ plugin for eclipse that allows for validation and navigation of schemas very easily within the project if your looking for a good xml/xsd tool. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4097992#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...