Hi friends,
I am reading a Medical Image file and i am reading the pixels using the
ByteArrayInputStream. but unfortunately i am getting all the pixel
values returned as zeros.

Do I need to run Tomcat (or something like it) when I use Cocoon?  All
I want to do is convert XML files to Microsoft Excel (XLS) using XSLT
files on a UNIX server.
I was able to convert XML to CSV and HTML using Xalan and I can convert

I'm looking for a good design pattern of integrity-business rules
implementation in J2EE/EJB. Assumption is that the rules should NOT be
in database layer.
I cannot find any good/detailed information of doing it in EJB in

I would like to replace java.util.Calendar class - I need to slightly
change it. Is it possible by providing custom classloader or..anything?
Thanks for any hints.
Regards,

I have been developing in Java for a while now, but have never
encountered this :
In a try block, an NullPointerException is thrown. I catch it and call
printStackTrace() to display the message and mostly see the stack.

I have been pulling my hair out the past few days trying to get arrive at
a solution to my problem and no apis, docs or googling has helped yet.  I
am using apache commons ftp to stream a file from the ftp server down to
a clients browser via a servlet.  That part works great I'm ...

This jsp code doesn't run. Why ?
-----------------------------------------------------------
<%@ page import="java.sql.*" %>
<%!

As we know, J2SE 1.5 supports generic programing, but anyone knows if
there's some performance implications about using generics in java ??
(besides code reutilization :) )

I am trying to store word documents and PDFs file into an oracle
database. I am using a BLOB.  I have been able to dump both word
documents and pdf files into a local flat file to ensure that they were
stored completely.

I have been using eclipse for over a year and I received this error
yesterday when trying to edit a *.java file:
unable to instantiate editor: org.eclipse.jdt.ui.compilationuniteditor
I get many more errors where it can't find the org.eclipse.jdt.*

Is it possible to get a 1.4 rmi client to talk to a 1.5 server?
Achieving such "forward compatibility" is probably not on, so I'd
assume that you should compile your server's remote object ( and rmic
it ) using 1.4 and build the rest of your server using 1.5. However,

I would like to convert XML files to CSV, HTML, PDF, and XLS.  The XML
files need to all use the same schema.  They are basically made up of
tables, headers, and footers.  I want to keep the same look and feel
for all of the output files.  Where can I find more information on the

please help me urgently
I want to to upload and download  files to a webserver using FTP only
in JSP.
please tell me how to start and if possible give me a working code in

Is there a way to d/l the J2EE 1.4 (J2EE.jar) w/o the Sun Application
Server Platform? i.e. Just the SDK.
All I need is to add the .jar files to the IDE & compile then deploy to
a server, but I don't need the Application Server Platform on my PC

I want to distribute an Oracle Client in an application of mine.  Can I
distribute the oracle jdbc driver, classes12.jar as long as put the
license somewhere in there?  Or is there an open source oracle driver I
should be using?