Read_Network resulting Java Error " Table or view does not exists"

Question

Hello Gurus,
I tried loading a Oracle Network (Oracle 11g) under the same user where i created the Network Tables. But still i am getting "table or view does not exists" . What could be the issue here ? Please help.
begin
SDO_NET_MEM.NETWORK_MANAGER.READ_NETWORK('ROADS_NETWORK', 'TRUE');
end;
ERROR at line 1:
ORA-29532: Java call terminated by uncaught Java exception:
oracle.spatial.network.NetworkDataException:
oracle.jdbc.driver.OracleSQLException: ORA-00942: table or view does not exist
ORA-06512: at "MDSYS.SDO_NETWORK_MANAGER_I", line 284
ORA-06512: at "MDSYS.SDO_NETWORK_MANAGER_I", line 114
ORA-06512: at line 2
Network Metadata is as follows .
ROADS_NETWORK     161     SPATIAL     LRS_GEOMETRY     ROADWAYS     1     1     ROAD_SEGMENTS     SEGMENT_GEOM     ROADS_NODES     NODE_GEOMETRY     COST               ROADS_LINKS     LINK_GEOMETRY     DIRECTED     COST               ROADS_PATHS     PATH_GEOMETRY     ROADS_PATHS_LINKS

Answer 1

Jack,
I apologize for the mix-up. Yes, i realized it was LRS network the first one i ran. And since that didn't work i tried the simpler one.
But here is what you asked me to run.
SQL> set line 1000
SQL> set trimspool on
SQL>
SQL> select * from user_sdo_network_metadata where network = 'UNET';
NETWORK NETWORK_ID NETWORK_CATE GEOMETRY_TYPE NETWORK_TYPE NO_OF_HIERARCHY_LEVELS NO_OF_PARTITIONS LRS_TABLE_NAME LRS_GEOM_COLUMN NODE_TABLE_NAME NODE_GEOM_COLUMN
NODE_COST_COLUMN
NODE_PARTITION_COLUMN NODE_DURATION_COLUMN LINK_TABLE_NAME LINK_GEOM_COLUMN LINK_DIRECTI
LINK_COST_COLUMN
LINK_PARTITION_COLUMN LINK_DURATION_COLUMN PATH_TABLE_NAME PATH_GEOM_COLUMN PATH_LINK_TABLE_NAME SUBPATH_TABLE_NAME SUBPATH_GEOM_COLUMN PARTITION_TABLE_NAME PARTITION_BLOB_TABLE_NAME COMPONENT_TABLE_NAME NODE_LEVEL_TABLE_NAME TOPOLOGY U E
UNET 221 SPATIAL SDO_GEOMETRY 1 0 UNET_NODES GEOM
UNET_LINKS GEOM UNDIRECTED
NETWORK NETWORK_ID NETWORK_CATE GEOMETRY_TYPE NETWORK_TYPE NO_OF_HIERARCHY_LEVELS NO_OF_PARTITIONS LRS_TABLE_NAME LRS_GEOM_COLUMN NODE_TABLE_NAME NODE_GEOM_COLUMN
NODE_COST_COLUMN
NODE_PARTITION_COLUMN NODE_DURATION_COLUMN LINK_TABLE_NAME LINK_GEOM_COLUMN LINK_DIRECTI
LINK_COST_COLUMN
LINK_PARTITION_COLUMN LINK_DURATION_COLUMN PATH_TABLE_NAME PATH_GEOM_COLUMN PATH_LINK_TABLE_NAME SUBPATH_TABLE_NAME SUBPATH_GEOM_COLUMN PARTITION_TABLE_NAME PARTITION_BLOB_TABLE_NAME COMPONENT_TABLE_NAME NODE_LEVEL_TABLE_NAME TOPOLOGY U E
COST
UNET_PATHS GEOM UNET_PLINKS
SQL>
SQL> select * from user_sdo_geom_metadata where table_name like 'UNET_%';
TABLE_NAME
COLUMN_NAME
DIMINFO(SDO_DIMNAME, SDO_LB, SDO_UB, SDO_TOLERANCE)
SRID
UNET_LINKS
GEOM
SDO_DIM_ARRAY(SDO_DIM_ELEMENT('Long', -180, 180, 1), SDO_DIM_ELEMENT('Lat', -90, 90, 1))
8307
TABLE_NAME
COLUMN_NAME
DIMINFO(SDO_DIMNAME, SDO_LB, SDO_UB, SDO_TOLERANCE)
SRID
UNET_NODES
GEOM
SDO_DIM_ARRAY(SDO_DIM_ELEMENT('Long', -180, 180, 1), SDO_DIM_ELEMENT('Lat', -90, 90, 1))
8307
TABLE_NAME
COLUMN_NAME
DIMINFO(SDO_DIMNAME, SDO_LB, SDO_UB, SDO_TOLERANCE)
SRID
UNET_PATHS
GEOM
SDO_DIM_ARRAY(SDO_DIM_ELEMENT('Long', -180, 180, 1), SDO_DIM_ELEMENT('Lat', -90, 90, 1))
8307
SQL> desc unet_nodes;
Name Null? Type
NODE_ID NOT NULL NUMBER
NODE_NAME VARCHAR2(200)
NODE_TYPE VARCHAR2(200)
ACTIVE VARCHAR2(1)
PARTITION_ID NUMBER
GEOM MDSYS.SDO_GEOMETRY
SQL>
SQL> desc unet_links;
Name Null? Type
LINK_ID NOT NULL NUMBER
LINK_NAME VARCHAR2(200)
START_NODE_ID NOT NULL NUMBER
END_NODE_ID NOT NULL NUMBER
LINK_TYPE VARCHAR2(200)
ACTIVE VARCHAR2(1)
LINK_LEVEL NUMBER
GEOM MDSYS.SDO_GEOMETRY
COST NUMBER