Error if nonsuperuser

[vut12]

CREATE USER MAPPING FOR map_t SERVER myserver OPTIONS(password 'ZAQ!xsw2', username 'info_user');

when execute "select * from foreign_table" i get error.
debug log:

DEBUG:  StartTransaction(1) name: unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
DEBUG:  In jdbcGetForeignRelSize
DEBUG:  Added server = test to hashtable
DEBUG:  In jq_connect_db_params
DEBUG:  In jdbc_jvm_init
DEBUG:  JVMEnvStat: JNI_EDETACHED; the current thread is not attached to the VM
DEBUG:  In jdbc_attach_jvm
DEBUG:  In jdbc_create_JDBC_connection
DEBUG:  Created a JDBC connection: jdbc:sap://localhost:31015
DEBUG:  In jq_connection_used_password
DEBUG:  In jq_finish for conn=0xfa73c0
DEBUG:  In jdbc_detach_jvm
ERROR:  password is required
DETAIL:  Non-superuser cannot connect if the server does not request a password.
HINT:  Target server's authentication method must be changed.

we check password here

jdbc_fdw/connection.c

Line 233 in 8dfb093

jdbc_check_conn_params(keywords, values);

then check again (for non-superuser all conditions true. jq_connection_used_password always return 0)

jdbc_fdw/connection.c

Line 258 in 8dfb093

if (!superuser() && !jq_connection_used_password(conn))

[sklenarikr]

I think, the jq_connection_used_password function isn't developed yet. There is simple return 0 without any test.
And the place of the check in connection.c is also curious.