Both tx run on the same cache isntance. Here is more datailed call flow 1-2) each tx has its own localCacheCopy Set keys=treeCache.getKeys(nodeName) Iterator it=keys.iterator() Map localCacheCopy=....; while(it.hastNext() { Object key=it.next(); Object val=treeCache.getObject("OURCACHE",key) localCacheCopy.put(key,val)l } //Store localCacheCopy in tx local data. 3-4) getLocalCacheCopy().put("ALA","ALA"); getLocalCacheCopy().put("BEATA","BEATA"); - retrieves localCacheCopy for Tx[1] 5) getLocalCacheCopy().remove("OLA"); - retrieves localCacheCopy for Tx[2] View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3995585#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...