There used to be a Node.putAll(Map map, boolean erase) method. The thread safe way (at the moment) is to use a transaction. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4039436#4039436 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4039436