Server Utilities :: DBMS-DATAPUMP.metadata-filter And Long Table List?

I have a problem with DBMS_DATAPUMP.metadata_filter.Let's suppose that I need to export a huge list of tables (a,b,c,d,e,f,g,h,i...). Let's suppose that the list is dynamic do NOT want to use

DBMS_DATAPUMP.metadata_filter (handle => h1,
NAME => 'NAME_EXPR',
VALUE => 'IN (''a'', ''b'', ...)',
object_type => NULL);

In my_export_table there is the list:

CREATE TABLE my_export_table
(
EXPORT_OBJECT_NAME VARCHAR2(50 BYTE)
)

Now I'm trying to use this form:

DBMS_DATAPUMP.metadata_filter (handle => h1,
NAME => 'NAME_EXPR',
VALUE => 'IN (SELECT a.export_object_name FROM my_export_table a, user_objects b WHERE a.export_object_name = b.object_name AND b.object_type = ''TABLE'')',
object_type => NULL
);

but it results in error.

Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
ORA-39125: Worker unexpected fatal error in KUPW$WORKER.GET_TABLE_DATA_OBJECTS while calling DBMS_METADATA.FETCH_XML_CLOB []
ORA-00942: table or view does not exist

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