How to not to lose the Time fields when passing a Date to Oracle Stored Proc using JDBC?

Problem: I had an SP to call which takes a param Date. I called this via JDBC with a valid Java Date, but it refused to save the time fields I supplied.

When preparing the SP for calling I did as follows,

mightySp('paramName',:paramName);

When supplying the parameter, I gave as follows,

tempPlsqlBlock.declareParameter(new SqlParameter("paramName", Types.DATE));

Solution: Instead of calling with param type Date, call with String and convert to date in the Java layer.

When preparing the SP for calling I used the TO_DATE method and convert the String to an Oracle Date as follows,

mightySp('paramName',TO_DATE(:paramName,'yyyy/mm/dd:hh:mi:ssam')

When supplying the parameter, I gave as follows,

tempPlsqlBlock.declareParameter(new SqlParameter("paramName", Types.VARCHAR));