How to prefill JDBC datasource connection pools at start-up in JBoss EAP

Solution Verified - Updated -

Issue

  • How can a JDBC datasource be pre-filled at JBoss start-up? (i.e. populated with connections before an application requests one)
  • WARN [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (main:) Prefill pool option was selected for pool with JNDI name null that does not support this feature.

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 4, 5, 6

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