From other customers experience it could work for Stat 5.6.4 and higher configuring the Stat Oracle agent to communicate to Oracle database using NDE. The configuration is done adding the following lines in the stat-ds.xml file:
Go to STAT_HOME/app/server/default/deploy/ and locate stat-ds.xml file:
Add these lines:
<connection-property name="oracle.net.encryption_client">required</connection-property>
<connection-property name="oracle.net.encryption_types_client">(RC4_256)</connection-property>
<connection-property name="v$session.program">Stat-Agent</connection-property>
Additional steps are:
Stop the Stat central agent.
Delete tmp, work and data folder from STAT_HOME/app/server/default/
Restart the central agent.
Start the Oracle agent.