OpenDJ 4.9 an error occurred when ldapmodify was used in jdbc backend

[dewice]

Describe the bug
A clear and concise description of what the bug is.

When I used OpenDJ 4.9 and configured backend as jdbc, the following error occurred after I executed ldapmodify

Processing ADD request for uid=TEST0001,cn=users,dc=example,dc=com
The LDAP modify request failed: 80 (Other)
Additional Information:  java.lang.RuntimeException:
org.postgresql.util.PSQLException: This connection has been closed.

To Reproduce
Steps to reproduce the behavior:

/setup.bat -h localhost -p 1689 --ldapsPort 1636 --adminConnectorPort 4444 --enableStartTLS --generateSelfSignedCertificate --rootUserDN "cn=root" --rootUserPassword Passw0rd --cli --acceptLicense --no-prompt

./bat/dsconfig.bat create-backend --hostname localhost --port 4444 --bindDN "cn=root" --bindPassword Passw0rd \
   --backend-name=userRoot \
   --type jdbc --set db-directory:jdbc:postgresql://192.168.0.120:5433/opendj1?user=opendj\&password=Passw0rd  \
   --set base-dn:dc=example,dc=com \
   --set enabled:true \
   --no-prompt --trustAll
   
./ldapmodify.bat -D cn=root -w Passw0rd -p 1689 -f C:\\Users\\31309\\Desktop\\test2.ldif -a

[vharseko]

please check PostgreSQL to automatically close idle connections?

[vharseko]

cannot reproduce: Test LDAP in Postgres