Postgresql : Jdbc Bulk insert Vs. Hibernate Bulk Insert

Postgresql : Jdbc Bulk insert Vs. Hibernate Bulk Insert

i used Postgresql database for my web application. on each day have to
insert around crore of data to database. there are 2 ways to insert into
database
Bulk Insett using JDBC (EX. Insert into table(col1,col2) values((col1val1,
col2val1),(col1val2, col2val2));
Hibernate Bulk Insert
want to know which is fast and safer method to insert data?.
note : i am doing this practice using Java.