Ok, let me put this way in JDBC we have setAutoCommit( false ) , and all dmls are independent transactions and when any transaction fails then the session not allowing next transactions in Java when we do setAutoCommit( false ) its behaving like all transactions in BEGIN-END block, this is not expected behavior i guess this is bug
pgsql-jdbc by date:
Соглашаюсь с условиями обработки персональных данных