BUG #18357: PGJDBC: how to pass the user defined type as input parameter to store procedure

The following bug has been logged on the website:

Bug reference: 18357
Logged by: PGJDBC: how to pass the user defined type as input parameter to store
procedure
Email address: jason.chentj@homecredit.cn
PostgreSQL version: 16.2
Operating system: Red Hat Enterprise Linux Server release 7.9
Description:

Hi PG team,

One question about : how to pass the user defined type as input parameter to
store procedure from JAVA code?

Seems it not support from JDBC long time ago (2008):
/messages/by-id/Pine.BSO.4.64.0811160716430.9252@leary.csoft.net

Please help confirm currently if the user defined type are supported or not
on JDBC.

Thanks
Jason