Your database url is wrong. A postgres database needs the following URL:
jdbc:postgresql://theComputerName/thePostgresDatabaseName
if you omit something, you get your NullPointerException

Christian

EA wrote:
> 
> Here are the errors I get while running the example classes provided by
> Postgres:
> 
> 1.  Without Debug
> <---------------------------------------------------
> PostgreSQL basic test v6.3 rev 1
> 
> Connecting to Database URL = jdbc:postgresql:db1
> Exception caught.
> Something unusual has occured to cause the driver to fail. Please report
> this exception: {1}
> Something unusual has occured to cause the driver to fail. Please report
> this exception: {1}
>  at postgresql.Driver.connect(Compiled Code)
>  at java.sql.DriverManager.getConnection(Compiled Code)
>  at java.sql.DriverManager.getConnection(Compiled Code)
>  at example.basic.<init>(Compiled Code)
>  at example.basic.main(Compiled Code)
> <-----------------------------------------------------
> 2.  With Debug
> <---------------------------------------------------
> PostgreSQL basic test v6.3 rev 1
> 
> DriverManager.initialize: jdbc.drivers = null
> JDBC DriverManager initialized
> registerDriver:
> driver[className=postgresql.Driver,postgresql.Driver@a574f633]
> Connecting to Database URL = jdbc:postgresql:web
> DriverManager.getConnection("jdbc:postgresql:db1")
>     trying driver[className=postgresql.Driver,postgresql.Driver@a574f633]
> -- listing properties --
> password=start123
> user=db1
> PGDBNAME=db1
> Protocol=postgresql
> Using postgresql.jdbc2.Connection
> Exception caught.
> java.lang.NullPointerException
> java.lang.NullPointerException
>  at java.io.Writer.write(Compiled Code)
>  at java.io.PrintStream.write(Compiled Code)
>  at java.io.PrintStream.print(Compiled Code)
>  at java.io.PrintStream.println(Compiled Code)
>  at java.lang.Throwable.printStackTrace(Compiled Code)
>  at java.sql.SQLException.<init>(Compiled Code)
>  at postgresql.util.PSQLException.<init>(Compiled Code)
>  at postgresql.Driver.connect(Compiled Code)
>  at java.sql.DriverManager.getConnection(Compiled Code)
>  at java.sql.DriverManager.getConnection(Compiled Code)
>  at example.basic.<init>(Compiled Code)
>  at example.basic.main(Compiled Code)
> 
> <-----------------------------------------------------
> 
> Anyone recognize these errors.
Thu, 02 Sep 1999 14:08:28 +0100
Christian Denning <ChristianDenning@netscape.net>
Re: Linux/Postgres 6.5 problems using jdbc w/jdk1.2
I am having the same problem. I tried the new URL. The problem still
continues. Is there a chance I still need to do  a make to create the
posgresql.jar file. I have installed the postgresql rpm's for
posdtgres6.5/. Any Ideas on how to do the make in postgresql 6.5

Ednut


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Thu, 28 Oct 1999 02:20:42 -0700
ednut <Tunde1938NOTuSPAM@hotmail.com.invalid>
Re: Linux/Postgres 6.5 problems using jdbc w/jdk1.2
I am having the same problem. I tried the new URL. The problem still
continues. Is there a chance I still need to do  a make to create the
posgresql.jar file. I have installed the postgresql rpm's for
posdtgres6.5/. Any Ideas on how to do the make in postgresql 6.5

Ednut
In article <37CE76CC.C341A8EE@netscape.net>, Christian Denning
<ChristianDenning@netscape.net> wrote:
> This is a multi-part message in MIME format.
> --------------E9628914BE19B20C6DA63E7C
> Content-Type: text/plain; charset=us-ascii
> Content-Transfer-Encoding: 7bit
> Your database url is wrong. A postgres database needs the
> following URL:
> jdbc:postgresql://theComputerName/thePostgresDatabaseName
> if you omit something, you get your NullPointerException
> Christian
> EA wrote:
> >
> > Here are the errors I get while running the example classes
> provided by
> > Postgres:
> >
> > 1.  Without Debug
> > <---------------------------------------------------
> > PostgreSQL basic test v6.3 rev 1
> >
> > Connecting to Database URL = jdbc:postgresql:db1
> > Exception caught.
> > Something unusual has occured to cause the driver to fail.
> Please report
> > this exception: {1}
> > Something unusual has occured to cause the driver to fail.
> Please report
> > this exception: {1}
> >  at postgresql.Driver.connect(Compiled Code)
> >  at java.sql.DriverManager.getConnection(Compiled Code)
> >  at java.sql.DriverManager.getConnection(Compiled Code)
> >  at example.basic.<init>(Compiled Code)
> >  at example.basic.main(Compiled Code)
> > <-----------------------------------------------------
> > 2.  With Debug
> > <---------------------------------------------------
> > PostgreSQL basic test v6.3 rev 1
> >
> > DriverManager.initialize: jdbc.drivers = null
> > JDBC DriverManager initialized
> > registerDriver:
> > driver[className=postgresql.Driver,postgresql.Driver@a574f633]
> > Connecting to Database URL = jdbc:postgresql:web
> > DriverManager.getConnection("jdbc:postgresql:db1")
> >     trying
> driver[className=postgresql.Driver,postgresql.Driver@a574f633]
> > -- listing properties --
> > password=start123
> > user=db1
> > PGDBNAME=db1
> > Protocol=postgresql
> > Using postgresql.jdbc2.Connection
> > Exception caught.
> > java.lang.NullPointerException
> > java.lang.NullPointerException
> >  at java.io.Writer.write(Compiled Code)
> >  at java.io.PrintStream.write(Compiled Code)
> >  at java.io.PrintStream.print(Compiled Code)
> >  at java.io.PrintStream.println(Compiled Code)
> >  at java.lang.Throwable.printStackTrace(Compiled Code)
> >  at java.sql.SQLException.<init>(Compiled Code)
> >  at postgresql.util.PSQLException.<init>(Compiled Code)
> >  at postgresql.Driver.connect(Compiled Code)
> >  at java.sql.DriverManager.getConnection(Compiled Code)
> >  at java.sql.DriverManager.getConnection(Compiled Code)
> >  at example.basic.<init>(Compiled Code)
> >  at example.basic.main(Compiled Code)
> >
> > <-----------------------------------------------------
> >
> > Anyone recognize these errors.
> --------------E9628914BE19B20C6DA63E7C
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>  name="ChristianDenning.vcf"
> Content-Transfer-Encoding: 7bit
> Content-Description: Card for Christian Denning
> Content-Disposition: attachment;
>  filename="ChristianDenning.vcf"
> begin:vcard
> n:Denning;Christian
> tel;cell:+44-7970-008855
> tel;fax:+44-1225-484944
> tel;home:+44-1453-836652
> tel;work:+44-1225-484449
> x-mozilla-html:FALSE
> url:http://iecl.iuscomp.org/cd
> org:e-net Software
> version:2.1
> email;internet:ChristianDenning@netscape.net
> title:Software Development Manager
> adr;quoted-printable:;;Shear's
> Cottage=0D=0AWatledge;Nailsworth;Gloucestershire;GL6 0AR;United
> Kingdom
> x-mozilla-cpt:;-26992
> fn:Christian Denning
> end:vcard
> --------------E9628914BE19B20C6DA63E7C--



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Thu, 28 Oct 1999 02:20:57 -0700
ednut <Tunde1938NOTuSPAM@hotmail.com.invalid>
Re: Linux/Postgres 6.5 problems using jdbc w/jdk1.2