BUG #16960: Illegal reflective access operation

PG Bug reporting form <noreply@postgresql.org> writes:

I connected my Postgresql server to my Eclipse IDE and this warning popped
up:
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.postgresql.jdbc.TimestampUtils
(file:/C:/Users/LanChi/Desktop/PubHub-StarterKit/WebContent/WEB-INF/lib/postgresql-42.1.1.jar)
to field java.util.TimeZone.defaultTimeZone
WARNING: Please consider reporting this to the maintainers of
org.postgresql.jdbc.TimestampUtils

I am not sure if this is the right place to report this bug,

No, this list is just for reporting problems in the Postgres server
proper. I'd suggest reporting it to the pgsql-jdbc mailing list.

regards, tom lane

On Mon, 12 Apr 2021 at 16:30, Tom Lane <tgl@sss.pgh.pa.us> wrote:

PG Bug reporting form <noreply@postgresql.org> writes:

I connected my Postgresql server to my Eclipse IDE and this warning

popped

up:
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.postgresql.jdbc.TimestampUtils

(file:/C:/Users/LanChi/Desktop/PubHub-StarterKit/WebContent/WEB-INF/lib/postgresql-42.1.1.jar)

to field java.util.TimeZone.defaultTimeZone
WARNING: Please consider reporting this to the maintainers of
org.postgresql.jdbc.TimestampUtils

I am not sure if this is the right place to report this bug,

No, this list is just for reporting problems in the Postgres server
proper. I'd suggest reporting it to the pgsql-jdbc mailing list.

regards, tom lane

The current version of JDBC is now 42.2.20. I would suggest you start by
upgrading to the latest version of the driver.

It would also be useful if you provided the version of JAVA you are using.
To be honest I'm not sure if we have fixed this or not, but I cannot even
begin to investigate it without this information.

Dave

Thanks for your response. I have forwarded this to the pgsql-bugs list as
well
Dave Cramer
www.postgres.rocks

---------- Forwarded message ---------
From: LanChi <lpham2525@gmail.com>
Date: Mon, 31 May 2021 at 11:14
Subject: Re: BUG #16960: Illegal reflective access operation
To: Dave Cramer <davecramer@postgres.rocks>

Dear Dave,

My JDBC has been updated to 42.2.20 and it fixed the problem. Thank you for
your response.

~LanChi

On Mon, May 31, 2021 at 9:55 AM Dave Cramer <davecramer@postgres.rocks>
wrote: