Just downloaded the latest JBoss/Jetty combo and made the necessary modifications in jboss.jcml to use the new data pool classes. But, when JBoss starts up, I get the following message:

[XADataSourceLoader] Starting
[ipac_admin] XA Connection pool ipac_admin bound to java:/ipac_admin
[XADataSourceLoader] Stopped
java.lang.NullPointerException
at org.jboss.pool.jdbc.xa.XAPoolDataSource.getConnection(XAPoolDataSourc
e.java:178)
at org.jboss.jdbc.XADataSourceLoader.startService(XADataSourceLoader.jav
a:407)
at org.jboss.util.ServiceMBeanSupport.start(ServiceMBeanSupport.java:107
)
at java.lang.reflect.Method.invoke(Native Method)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:16
28)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
23)
at org.jboss.configuration.ConfigurationService$ServiceProxy.invoke(Conf
igurationService.java:836)
at $Proxy0.start(Unknown Source)
at org.jboss.util.ServiceControl.start(ServiceControl.java:81)
at java.lang.reflect.Method.invoke(Native Method)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:16
28)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:15
23)
at org.jboss.Main.(Main.java:210)
at org.jboss.Main$1.run(Main.java:116)
at java.security.AccessController.doPrivileged(Native Method)
at org.jboss.Main.main(Main.java:112)
[Configuration] java.lang.NullPointerException
[Configuration] at org.jboss.pool.jdbc.xa.XAPoolDataSource.getConnection
(XAPoolDataSource.java:178)
[Configuration] at org.jboss.jdbc.XADataSourceLoader.startService(XAData
SourceLoader.java:407)
[Configuration] at org.jboss.util.ServiceMBeanSupport.start(ServiceMBean
Support.java:107)
[Configuration] at java.lang.reflect.Method.invoke(Native Method)
[Configuration] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanSe
rverImpl.java:1628)
[Configuration] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanSe
rverImpl.java:1523)
[Configuration] at org.jboss.configuration.ConfigurationService$ServiceP
roxy.invoke(ConfigurationService.java:836)
[Configuration] at $Proxy0.start(Unknown Source)
[Configuration] at org.jboss.util.ServiceControl.start(ServiceControl.ja
va:81)
[Configuration] at java.lang.reflect.Method.invoke(Native Method)
[Configuration] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanSe
rverImpl.java:1628)
[Configuration] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanSe
rverImpl.java:1523)
[Configuration] at org.jboss.Main.(Main.java:210)
[Configuration] at org.jboss.Main$1.run(Main.java:116)
[Configuration] at java.security.AccessController.doPrivileged(Native Me
thod)
[Configuration] at org.jboss.Main.main(Main.java:112)

I'm using the interclient.jar file compiled under JDK 1.3. This worked just fine for me under the JBoss 2.2.2/Jetty combo.

Any ideas?