Java stack on HANA DB

Hello All,

After migrating to HANA DB(SPS07) from MSSQL

we have below configuration

1. ABAP Stack directly on HANA DB -> No issues

2. JAVA Stack still showing MSSQL as my DB -> I belive MSSQL is my primary DB and HANA will be my secondary DB

Now my question is

where can i see that my JAVA stack is using HANA DB as secondary ?

How data will get transferred to HANA DB ?

I have seen this kind of configuration in ABAP stack . According to my knowledge Data will get transfred ( SLT, DxC's) from primary DB to Secondary HANA DB . But, i am not sure how it will be in java. So, could someone please give me some hints.