java.sql.SQLException: ORA-00604: in BFILE.fileExists

[Srividya Ramkumar]

I am attempting to use BFILE columns to reference existing files on a
windows 2000.
I have created a "DIRECTORY" and given the directory READ permissions
to public. I can update the BFILE column in the database but when I attempt
to see if the file exists I get an error.

java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
ORA-01460: unimplemented or unreasonable conversion requested
ORA-06512: at "SYS.DBMS_LOB", line 456
ORA-06512: at line 1
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1898)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:363)
at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:407)
at oracle.sql.LobPlsqlUtil.plsql_fileExists(LobPlsqlUtil.java:755)
at oracle.jdbc.dbaccess.DBAccess.fileExists(DBAccess.java:898)
at oracle.sql.LobDBAccessImpl.fileExists(LobDBAccessImpl.java:244)
at oracle.sql.BFILE.fileExists(BFILE.java:213)