Index: lams_build/conf/unix/jboss/service/mysql-ds.xml
===================================================================
diff -u -re1e55f70331cfc99408c2d7bde2dc51ff6e6db42 -rc32163890d9ab00360eb1d4c2e4e30c38d61df0a
--- lams_build/conf/unix/jboss/service/mysql-ds.xml	(.../mysql-ds.xml)	(revision e1e55f70331cfc99408c2d7bde2dc51ff6e6db42)
+++ lams_build/conf/unix/jboss/service/mysql-ds.xml	(.../mysql-ds.xml)	(revision c32163890d9ab00360eb1d4c2e4e30c38d61df0a)
@@ -16,6 +16,7 @@
     <connection-property name="characterEncoding">utf8</connection-property>
     <connection-property name="zeroDateTimeBehavior">convertToNull</connection-property>
     <connection-property name="useUnicode">true</connection-property>
+    <valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker</valid-connection-checker-class-name>
     
     <!-- Properties below are used only for embedded MySQL server -->
     <connection-property name="server.basedir">@db.location@</connection-property>
@@ -40,4 +41,4 @@
     <!-- Connections not used after 5 minutes will be closed and removed -->
     <idle-timeout-minutes>5</idle-timeout-minutes>
   </local-tx-datasource>    
-</datasources>
\ No newline at end of file
+</datasources>