Java application not using Transparent Application failover in Oracle database

I have a customer that have a RAC environment (2 nodes, database version is 11gR2). Clusterware version: [grid@server2 ~]$ crsctl query crs releaseversion Oracle High Availability Services release version on the local node is [11.2.0.4.0] [grid@server2 ~]$ crsctl query crs activeversion Oracle Clusterware active version on the cluster is [11.2.0.4.0] Their aplication not use correctly the TAF (transparent application failover) After some research I've tested using swingbanch and I've found the same behavior in my LAB environment: INST_ID USERNAME SERVER SERVICE_NAME PROGRAM STATUS FAILOVER_TYPE FAILOVER_M FAI ---------- ---------- --------- -------------------- -------------------- -------- ------------- ---------- --- 1 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 1 SOE DEDICATED mootdb_prod sqlplus.exe INACTIVE SELECT BASIC NO 1 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 1 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 1 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 1 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 1 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO 2 SOE DEDICATED mootdb_prod JDBC Thin Client ACTIVE NONE NONE NO The only session using the TAF above is a session created manually from sqlplus (failover_type column). I'm using the same tnsnames alias in all sessions. Why is this happening. Is there some requirement in the application side as well for it work correctly?