Jdbc driver connection error

It's kinda urgent, if u cud help !!

Well, I compiled postgresql.jar, included it in CLASSPATH, and then ran the
example.
(RedHat Linux6.0, postgreSQL6.5.2 on Intel Celeron)

Here's what I did, and what I get:

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[postgres(at)linux jdbc]$ java example.basic jdbc:postgresql:template1 postgres
postgres
PostgreSQL basic test v6.3 rev 1

Connecting to Database URL = jdbc:postgresql:template1
Exception caught.
java.lang.IllegalArgumentException: Argument # > Arg length
java.lang.IllegalArgumentException: Argument # > Arg length
at java.text.MessageFormat.format(MessageFormat.java)
at java.text.MessageFormat.format(MessageFormat.java)
at java.text.MessageFormat.format(MessageFormat.java)
at postgresql.util.PSQLException.translate(PSQLException.java:83)
at postgresql.util.PSQLException.<init>(PSQLException.java:45)
at postgresql.Driver.connect(Driver.java:108)
at java.sql.DriverManager.getConnection(DriverManager.java:83)
at java.sql.DriverManager.getConnection(DriverManager.java:126)
at example.basic.<init>(basic.java:32)
at example.basic.main(basic.java:171)
[postgres(at)linux jdbc]$

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And then I ran it using Debug option:
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[postgres(at)linux jdbc]$ java example.basic jdbc:postgresql:template1 postgres
postgres debug
PostgreSQL basic test v6.3 rev 1

DriverManager.initialize: jdbc.drivers = null
JDBC DriverManager initialized
registerDriver:
driver[className=postgresql.Driver,context=null,postgresql(dot)Driver(at)80aadf8]
Connecting to Database URL = jdbc:postgresql:template1
DriverManager.getConnection("jdbc:postgresql:template1")
trying
driver[className=postgresql.Driver,context=null,postgresql(dot)Driver(at)80aadf8]
-- listing properties --
password=postgres
Protocol=postgresql
user=postgres
PGDBNAME=template1
Using postgresql.jdbc1.Connection
Exception caught.
java.lang.NullPointerException:
java.lang.NullPointerException:
at java.io.Writer.write(Writer.java)
at java.io.PrintStream.write(PrintStream.java)
at java.io.PrintStream.print(PrintStream.java)
at java.io.PrintStream.println(PrintStream.java)
at java.lang.Throwable.printStackTrace(Throwable.java)
at java.sql.SQLException.<init>(SQLException.java:102)
at postgresql.util.PSQLException.<init>(PSQLException.java:42)
at postgresql.Driver.connect(Driver.java:108)
at java.sql.DriverManager.getConnection(DriverManager.java:83)
at java.sql.DriverManager.getConnection(DriverManager.java:126)
at example.basic.<init>(basic.java:32)
at example.basic.main(basic.java:171)
[postgres(at)linux jdbc]$

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What's that I am missing??

Thanx a lot.

-Ashish