Can't receive change events with oracle connector - JDBC getTables() hangs

Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
================

sqlplus sys as sysdba
alter system set db_recovery_file_dest_size = 5G;
mkdir -p /opt/oracle/oradata/recovery_area
alter system set db_recovery_file_dest = '/opt/oracle/oradata/recovery_area' scope=spfile;
alter system set ENABLE_GOLDENGATE_REPLICATION=true;
shutdown immediate
startup mount
alter database archivelog;
alter database open;
-Should show "Database log mode: Archive Mode"
archive log list

CREATE USER inventory IDENTIFIED BY inventory;
GRANT CONNECT, resource, unlimited tablespace TO inventory;

create table inventory.customers(
  id varchar2(1000) primary key,
  name varchar2(200),
  sex varchar2(100),
  location varchar2(1000),
  birth_date date
);

ALTER TABLE inventory.customers ADD SUPPLEMENTAL LOG DATA (ALL) COLUMNS;

CREATE TABLESPACE xstream_adm_tbs DATAFILE '/opt/oracle/oradata/xstream_adm_tbs.dbf' SIZE 25M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED;

CREATE USER xstrmadmin IDENTIFIED BY xsa
DEFAULT TABLESPACE xstream_adm_tbs
QUOTA UNLIMITED ON xstream_adm_tbs;

GRANT CREATE SESSION, SET CONTAINER TO xstrmadmin;

CREATE TABLESPACE xstream_tbs DATAFILE '/opt/oracle/oradata/xstream_tbs.dbf'
  SIZE 25M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED;

CREATE USER xstrm IDENTIFIED BY xs
  DEFAULT TABLESPACE xstream_tbs
  QUOTA UNLIMITED ON xstream_tbs;


GRANT CREATE SESSION TO xstrm;
GRANT SELECT ON V_$DATABASE to xstrm;
GRANT FLASHBACK ANY TABLE TO xstrm;


DECLARE
  tables  DBMS_UTILITY.UNCL_ARRAY;
  schemas DBMS_UTILITY.UNCL_ARRAY;
BEGIN
    tables(1)  := 'customers';
    schemas(1) := 'inventory';
  DBMS_XSTREAM_ADM.CREATE_OUTBOUND(
    server_name     =>  'dbzxout',
    table_names     =>  tables,
    schema_names    =>  schemas);
END;

BEGIN
  DBMS_XSTREAM_ADM.ALTER_OUTBOUND(
    server_name  => 'dbzxout',
    connect_user => 'xstrm');
END;

export LD_LIBRARY_PATH=/home/ceyhun/projects/lab/yakamoz/lib/oci/instantclient_12_2
./confluent start
./confluent log connect -f
./confluent consume orcl.inventory.customers --from-beginning

connector create request:

{
	"name": "inventory-connector",
	"config": {
		"connector.class" : "io.debezium.connector.oracle.OracleConnector",
		"tasks.max" : "1",
		"database.server.name" : "orcl",
		"database.hostname" : "localhost",
		"database.port" : "1521",
		"database.user" : "xstrm",
		"database.password" : "xs",
		"database.dbname" : "orcl",
		"database.tablename.case.insensitive": true,
		"table.whitelist": "orcl\\.inventory\\.(.*)",
		"database.oracle.version": "11",
		"database.out.server.name" : "dbzxout",
		"database.history.kafka.bootstrap.servers" : "localhost:9092",
		"database.history.kafka.topic": "schema-changes.inventory"
	}
}