Is the "Pad" attribute on the XidFactory needed in JBoss EAP for Oracle XA datasources?

Issue

We have read in a JBoss wiki as well as in the EAP docs [1] that it is necessary to set the Pad attribute to true for the XidFactory MBean when we use Oracle XA datasources:

<!-- The configurable Xid factory. For use with Oracle, set pad to true --> 
<mbean code="org.jboss.tm.XidFactory" 
       name="jboss:service=XidFactory"> 
    <!--attribute name="Pad">true</attribute--> 
</mbean>

Does this still apply?

[1] http://www.redhat.com/docs/en-US/JBoss_Enterprise_Application_Platform/4.3.0.cp06/html/Getting_Started/Using_other_Databases-Setting_up_an_XADataSource_with_Oracle_10g.html