SchemaUpdate 如何让它正确找schema?

[schemaupdate] 信息: table found: CS.CARD
[schemaupdate] 2007-3-30 13:32:12 org.hibernate.tool.hbm2ddl.TableMetadata <init>
[schemaupdate] 信息: columns: [times_y, distrustful_times, card_limit, owe_amount, id, card_number, monthly_pay, id_type, customer_id, correct_percent_hy, limit_use_pecent_y, last_adjust_date, record_date, amount_y, daily_balance_y, open_date, card_class, distrustful_amount, owe_times, correct_amount_y, correct_percent_y, times_hy, customr_limit, amount_hy, correct_amount_hy, limit_use_pecent_hy, state, daily_balance_hy]
...
[schemaupdate] alter table TEST.CARD add ACCOUNT_LIMIT double precision default 0 not null

I'm trying to create a schema upgrade script via HBM2DDL and I'm running into an anomaly. When the tool looks up a table in the Oracle catalog, it doesn't specify the "owner" or "schema" name (the user id that I specified in the JDBC connection parms). It finds the first table with a matching name and creates SQL Alter Table stmts accordingly. Unfortunately, the table names as specified in my HBM files occur many times within my Oracle instance, under many different User IDs. Sometimes it finds the correct table but most times it encounters the wrong table.

Is there a parameter I can specify that would limit the tool to finding only tables owned by a specific User ?

I'm using the tool from within an ANT target on Widows XP.