PostgreSQL JDBC error: Missing or erroneous pg_hba.conf file

I get this error only when coming in from the local host! Remote clients,
oddly enough, don't have this problem.

Something unusual has occured to cause the driver to fail. Please report
this exception: java.sql.SQLException: Missing or erroneous pg_hba.conf
file, see postmaster log for details
at postgresql.Driver.connect(Driver.java:125)
at java.sql.DriverManager.getConnection(DriverManager.java:453)
at java.sql.DriverManager.getConnection(DriverManager.java:133)
at com.exodus.change.util.DBTest.<init>(DBTest.java:28)
at com.exodus.change.util.DBTest.main(DBTest.java:44)

The pg_hba.conf file:

host all 127.0.0.1 255.255.255.255 trust
host all 203.216.99.58 255.255.255.255 trust
host all 203.216.99.58 trust
host all 203.216.0.0 255.255.255.0 trust

Any ideas?

Ira Waxberg
Developer
Exodus Communications, K.K.
Imperial Nishi-Shinjuku Building
5-3-2 Nishi-Shinjuku, Shinjuku-ku
Tokyo 160-0023
03-5334-1433
03-5334-1771 (fax)
i-waxberg(at)exodus(dot)co(dot)jp
http://www.exodus.co.jp