<annotation-list> condition is not working w/o "name" attribute

@DataSourceDefinitions({

        @DataSourceDefinition(

                name = "jdbc/multiple-ds-xa",

        ),

        @DataSourceDefinition(

                name = "jdbc/multiple-ds-non-xa",

        ),

})

<javaclass references="javax.annotation.sql.DataSourceDefinitions" >

     <location>ANNOTATION</location>

     <annotation-list>

     <annotation-type pattern="javax.annotation.sql.DataSourceDefinition" />

     </annotation-list>

</javaclass>