Datasource pool prefill does not run at JVM start in JBoss EAP 7.1

Issue

• Using min-pool-size and prefill

          <datasource ...>
              ...
              <pool>
                  <min-pool-size>10</min-pool-size>
                  ...
                  <prefill>true</prefill>
              </pool>
              ...
          </datasource>
  

• In JBoss EAP 7.0, the connection pool is filled to <min-pool-size> at JVM start.
• In JBoss EAP 7.1, the connection pool is filled to <min-pool-size> the first time it is used by an application component.
• In JBoss EAP 7.2 and later, the connection pool is filled to <min-pool-size> at JVM start.