TechSpot

JAXB & IBM Service Component Architecture

2012-01-24T22:43:00.000-08:00

Very good documentation on JAXB in Service Component Architecture -

http://publib.boulder.ibm.com/infocenter/ieduasst/v1r1m0/index.jsp?topic=/com.ibm.iea.wasfpsca/wasfpsca/1.0/JAXB/WASv7SCA_JAXBDatabinding/player.html

The foundation of the CE server is the Apache Geronimo (image from the presentation given below)
http://publib.boulder.ibm.com/infocenter/ieduasst/v1r1m0/index.jsp?topic=/com.ibm.iea.wasce/wasce/3.0/overview/overview/player.html

Things I wish I had know (about starting a new company)

2012-01-10T03:24:00.001-08:00

http://www.infoq.com/presentations/Things-I-Wish-I-d-Known

HelpSetMaker

2011-11-21T22:18:00.000-08:00

HelpSetMaker is a program designed for creating help information. It is designed upon the philosophy that structured help texts should be createable in an intuitive way and with the least possible overhead

http://www.cantamen.de/helpsetmaker.php?lang=en

Windows Drivers backup & restore

2011-11-12T11:02:00.000-08:00

Being able to back up your windows drivers is one of the most important things you can do

Comparison of different programs -
www.techsupportalert.com/best-free-windows-driver-backup.htm

http://www.boozet.org/dd.htm

Upgrading to Kubuntu 11.10 (Oneiric Ocelot)

2011-10-25T01:06:00.000-07:00

Okay so I had this question if I should upgrade from Kubuntu 11.04 to 11.10, looking around I did not see too many glowing reviews. All I did see was people facing this issue and that issue, however I finally did do the upgrade to check it out for myself.

All in all the upgrade was smooth, did it via the alternate CD. No point redoing the documentation that has already been done well. Look here for more details - https://help.ubuntu.com/community/OneiricUpgrades#Upgrading_Using_the_Alternate_CD.2BAC8-DVD

One minor issue that I did face was Muon getting stuck and not being able to complete adding new updates ("muon another package seems to be using the package system .. "). So I ran dpkg from the command line, here is the error message. I just followed running it with the configure & a option and it fixed the problem

dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.

I do prefer the Kpackagekit to Muon, especially the fact that KPK let me continue selecting software to install while an install was already happening.

Okay so now the million dollar question, should you upgrade ? If you believe in the latest and the best go ahead. If you are a little streched for time and have a system that you have configured & customized you probably can skip this update.

Here is a little screen shot -

Configuring KDE4

2011-06-29T09:50:00.000-07:00

Intro to KDE4 - http://www.kde.org/announcements/4.0/desktop.php

Social Desktop - http://www.kde.org/announcements/4.4/applications.php

Really liked this one -
KDE 4 - http://genek.net/LinuxAdventures/installsetup/desktop1.html

Fine tuning the desktop behavior - http://everydaylht.com/howtos/eyecandy/kwin-changing-virtual-desktops/

The journey to Kubuntu 11.04 (Natty Narwhal) - Passion defined

2011-06-22T09:28:00.000-07:00

Windows has served me well, but like all good things its coming to an end. XP was a wonderful companion, unfortunately for MS while they rested on their laurels the rest of the open source world raced past.

Four years back I started playing with linux, without the thought ever crossing my mind that - I would be relying on it more that I rely on my Windows. And last year I bought a Dell laptop that came pre-installed with Win7X64. Unfortunately (or maybe fortunately) it came with a memory leak already on it.

After spending innumerable weekend hours over a one year period I turned to MS tech support to help me fix the issue. The guys did their best and I do appreciate their efforts, but there is only so much you can do remotely. As they say when one door closes another door opens. In my case when the 'window' closed on me, multiple flood gates of the open source world opened up.

Of course having friends with a solid linux background did help me understand a lot of things. One of the things I'm most grateful to them is they rarely fixed issues on my PC, they merely pointed the way. I understood so much more by learning and applying these directions.

Of course like all new comers I was totally overwhelmed by the amount of choices/distros available. I played with a few distros (quite a few to be honest) these include - Knoppix, SUSE, Lindows, Debian, Fedora, Ubuntu, Kubuntu, PC-Linux (one of my favorites) & of course Mandriva.

I am currently running Kubuntu 11.04 and to be honest I'm more comfortable on this than Win7. See more here - http://www.kubuntu.org/news/11.04-release

Another good review site - http://linuxlibrary.org/index.php/distributions/kubuntu-11-04-review/

So that brought me to this question - what is the factor that would cause a loosely knit group of geographically widely distributed developers compete and overtake MS an OS monopolistic giant ? Where MS is funding, researching, sponsoring & paying salaries to good folks to develop an OS, there is a bunch of 'rebels' who refuse to conform to the flow but instead write an OS that has better eye candy, utilize lower system resources,be more stable, have less viruses & be available for free ? I think its passion - apparently not something that money can buy. One license of Win is couple hundred dollars, one license of (K)Ubuntu priceless :)

Below a screenshot of my desktop (a mac theme),

A wise person told me that I should use the default skin that came with Kubuntu & not try to fake a Mac. But I disagree - they beauty of these themes is that they can be what you want your PC to be. After all you don't own it, not unless you tweak it.

Credits - Niraj, Chetan, Vinay, Amod,Rakesh who helped me with Linux. Ritesh who inspired me to take up this journey 4.5 years back by showing off the cool eye candy, mostly refusing to fix issues on my pc instead showing me the way & being my critic every time I hopped a distro.

Swap Space on linux

2011-06-17T12:52:00.000-07:00

I'm running Kubuntu & noticed usage of my swap file (about 400 Meg of RAM & about 400 Megs of Swap file). Hey I have 2.8 Gigs of RAM, why should the swap file be used. I'm already sick of the Win7x64 memory leak that I have not yet resolved.

Anyways here's a cool way to turn off swap on linux
* sudo swapoff -a

Turn it back on using
* sudo swapon -a

Cool right ? Look at this for more stuff - https://help.ubuntu.com/community/SwapFaq

Win7 x64 memory leak (svchost.exe)

2011-06-12T05:43:00.000-07:00

I'm being plagued by high memory utilization by the svchost.exe process on my win7x64.

Based on what I'm reading on the net, couple of things that I'm trying -
1) Turning off the weather gadget on the desktop
2) Turning off homegroup
These two things have not completely fixed the issue, but have definitely reduced the bleeding memory footprint tha was exceeding 1Gb.

Update - been on chat support for one hour - deleted temp & prefetch files. Problem exists. Rebooted in safe mode, memory utilization is okay

Kubuntu Compiz (Gmenu) Applications menu has only recent items (bug)

2011-06-05T04:59:00.000-07:00

I recently moved over to Kubuntu 11.04 and am enjoying using it. Couple of annoyance I had with the earlier Ubunutu 10.10 are now gone.

One issue that I'm having is the application menu is empty in the compiz toolbar.
More details here - https://bugs.launchpad.net/cairo-dock-plug-ins/+bug/582452

FIX
I've used a simple workaround to fix this problem.
1) Use a terminal
2) cd /etc/xdg/menus
3) sudo link kde4-applications.menu applications.menu

Voila your problem is now fixed. The issues is because cairo dock is expecting an applications.menu file to be available at the /etc/xdg/menus location. The workaround described above creates a new applications.menu file that in reality is shortcut to the kde menu file.

Another options is to create a copy of the kde4-applications.menu file and save it as applications.menu, however you will have to create a copy every time you install a new program if you want to see it in the Gmenu.

Good Antivirus to-buy / free

2011-06-03T01:39:00.000-07:00

I'm at the end of my subscription for Kaspersky Internet Security Suite. After reading tons of reviews, visiting lots of websites that test antivirus and cost/performance ratio I finally selected Bitdefender Internet Security Suite.

After making an online purchase, I had problems downloading it from the DigitalRiver store (this was due to power fluctuations at home that caused the download to be aborted couple of times). Long story short the customer care was very helpful and had my issue resolved in a jiffy.

My evaluation and based on the feedback on the internet led to a tie between Kaspersky Internet Security 2011 & Bitdefender Internet Security 2011. The reason for choosing Bitdefender was simple - cost, extremely affordable for a multi PC / multi year contract.

Now about the antivirus - has all the necessary ICSA, VB100, AV-Comparatives approvals. Tried with the trial version and was happy with it. The only issue I'm facing is that the home network management feature did not work out very well for me. If it had, it would have made my life easier as I can manage the Bitdefender installations on my network. However its not a big deal and I can say I am quite pleased with my purchase.

Now as far as the free antivirus story goes - these are mostly stripped down versions of internet security suites with the same antivirus engine. Bitdefender has a free version too with a on-demand scanner and no real time protection. Avast! is something that has got rave reviews and has an extremely large customer base and good virus detection.

The other antivirus/security suite that I would watch out for is the BullGuard Security Suite which seems to have a lot of promise. It uses the same antivirus engine as Bitdefender but is definitely much lighter, has anti spam engine that integrates very smoothly with Windows Live Mail (the anti spam software is available for free).

Open Source Freeware : 400+ free applications and utilities

2011-05-23T02:42:00.000-07:00

http://www.econsultant.com/i-want-open-source-software/index.html

Also see - http://www.digalist.com/list/270 for audio & video tools

Cameyo - Creating Portable Applications

2011-04-26T21:01:00.000-07:00

Ever wished you could pack an entire application into one single .EXE and take it with you anywhere without having to reinstall it every time?
At work, at home, on your laptop, at a friend...
Ever wanted to avoid having to reinstall all your applications every time you change, upgrade or reformat your computer?
Or, if you are an IT admin, have you ever dreamed you didn't have to test and deploy applications, and simply let your users launch them on demand whenever they needed to?

If so, application virtualization is probably what you need.
http://www.techsupportalert.com/content/create-your-own-portable-virtual-version-any-windows-program.htm

Java Decompilers

2011-04-07T23:16:00.000-07:00

JAD Decompiler by Pavel Kouznetsov - http://www.varaneckas.com/jad

FrontEnd Plus (front end of JAD)

DJ Decompiler (very popular by at_neshkov) http://www.neshkov.com/dj.html

Learning GWT

2011-03-17T02:26:00.000-07:00

http://code.google.com/webtoolkit/doc/latest/tutorial/RPC.html

Ext-Gwt -http://www.sencha.com/examples/#autoheightgrid

Google I/O - May 2010

2011-03-17T02:24:00.000-07:00

Google I/O offered 90+ sessions featuring highly technical, in-depth content covering a number of technologies and developer products. All videos and slides are available below.

http://www.google.com/events/io/2010/sessions.html

Session types

101: 101 sessions don't require previous knowledge of a particular product or technology. They include overviews of a technology and introductions into new areas.
201: 201 sessions provide a deeper dive into a technology or product. These sessions go beyond the basics and are aimed at developers already familiar with a technology.
301: 301 sessions assume an advanced understanding of a technology or product.
Fireside Chats: Q&A is often the best part of a session, as it gives developers a chance to ask what's on their minds. Fireside chats are a chance to talk to the product engineering teams.
Tech Talks: Google has a tradition of holding informative Tech Talks on campus that offer insight into an area. In that tradition, Google I/O features Tech Talks on subjects of interest to developers, such as computer science problems and programming language

Administration tools for replication environment (Oracle)

2011-03-17T02:18:00.000-07:00

"Replication is the process of copying and maintaining database objects, such as tables, in multiple databases that make up a distributed database system. Changes applied at one site are captured and stored locally before being forwarded and applied at each of the remote locations. Advanced Replication is a fully integrated feature of the Oracle server; it is not a separate server."

http://www.stanford.edu/dept/itss/docs/oracle/10g/server.101/b10732/repoverv.htm#12309

Continuous Integration with Hudson

2011-03-16T23:52:00.000-07:00

Introduction

Excellent introduction to CI systems - http://en.wikipedia.org/wiki/Continuous_integration
" ..Continuous integration - as the practice of frequently integrating one's new or changed code with the existing code repository - should occur frequently enough that no intervening window remains between commit and build, and such that no errors can arise without developers noticing them and correcting them immediately. ... "

Comparison of Integration Systems
http://www.thinkplexx.com/learn/article/build-chain/ci/choosing-continuous-integrationci-tool-opensource-vs-professional-cruisecontrol-hudson-continuum-vs-teamcity
Hudson was my choie because its open source, has an active community, availability of multiple plugins, IDE support & no restrictions.

Implementation / Deployment for Hudson

Hudson home page - http://wiki.hudson-ci.org/display/HUDSON/Meet+Hudson

Short Tutorial on using hudson - http://www.vogella.de/articles/ContinuousIntegration/article.html

Excellent Step by step instructions - http://www.javaworld.com/javaworld/jw-12-2008/jw-12-hudson-ci.html?page=1

Things Every Programmer Should Know

2010-12-14T00:43:00.000-08:00

http://www.javacodegeeks.com/2010/12/things-every-programmer-should-know.html

Headphones on ubuntu

2010-12-04T14:54:00.000-08:00

http://indlovu.wordpress.com/2010/08/07/upgrade-alsa/

Here's the script - http://ubuntuforums.org/attachment.php?attachmentid=156468&d=1273598001

Java Placement Guide

2010-11-16T03:50:00.000-08:00

This is one in a miniseries of tutorial lessons designed to help you learn the essential features of Java object-oriented programming as identified by The College Board.

http://www.developer.com/java/other/article.php/987161/Java-Advanced-Placement-Study-Guide-Method-Overloading.htm

Java Class Loader Basics

2010-11-16T03:49:00.000-08:00

The fundamentals of this key component of the Java architecture

By Chuck Mcmanis, JavaWorld.com, 10/01/96
The class loader concept, one of the cornerstones of the Java virtual machine, describes the behavior of converting a named class into the bits responsible for implementing that class. Because class loaders exist, the Java run time does not need to know anything about files and file systems when running Java programs.

http://www.javaworld.com/cgi-bin/mailto/x_java.cgi?pagetosend=/export/home/httpd/javaworld/javaworld/jw-10-1996/jw-10-indepth.html&pagename=/javaworld/jw-10-1996/jw-10-indepth.html&pageurl=http://www.javaworld.com/javaworld/jw-10-1996/jw-10-indepth.html&site=jw_core

Java Class Loader (Securing Java)

2010-11-16T03:48:00.000-08:00

One of the central tenets of Java is making code truly mobile. Every mobile code system requires the ability to load code from outside a system into the system dynamically. In Java, code is loaded (either from the disk or over the network) by a Class Loader. Java's class loader architecture is complex, but it is a central security issue, so please bear with us as we explain it

http://www.securingjava.com/chapter-two/chapter-two-7.html

Hello, OSGi, Part 1: Bundles for beginners

2010-11-16T03:46:00.000-08:00

http://www.javaworld.com/cgi-bin/mailto/x_java.cgi?pagetosend=/export/home/httpd/javaworld/javaworld/jw-03-2008/jw-03-osgi1.html&pagename=/javaworld/jw-03-2008/jw-03-osgi1.html&pageurl=http://www.javaworld.com/javaworld/jw-03-2008/jw-03-osgi1.html&site=jw_core

Creating, executing, and managing bundles in an OSGi container

By Sunil Patil, JavaWorld.com, 03/04/08

The Open Services Gateway Initiative (OSGi) defines an architecture for developing and deploying modular applications and libraries. In this first article in a three-part introduction to OSGi, Sunil Patil gets you started with OSGi development concepts and shows you how to build a simple Hello World application using the Eclipse OSGi container implementation, Equinox. He also touches briefly on building service-oriented applications using OSGi and introduces OSGi's ServiceFactory and ServiceTracker classes.

Genetic Algorithms with Java (JGAP)

2010-11-16T03:45:00.000-08:00

http://jcraane.blogspot.com/2009/02/introduction-to-genetic-algorithms-with.html

http://code.google.com/p/jc-examples/

Out of interest I am familiarizing myself in genetic algorithms, in short GA. My interest in GA came when I first heard about the JGAP project. As mentioned on the project's site "JGAP (pronounced "jay-gap") is a Genetic Algorithms and Genetic Programming component provided as a Java framework.". For a newcomer I found it difficult to get a good overview about all the concepts introduced in genetic algorithms. Before diving into JGAP, I think it is essential that these concepts are well understood. This post is an introduction to genetic algorithms (GA) with JGAP and is explained with a concrete example. In one of my next posts I will demonstrate solving a problem with genetic programming (GP).

So what is a genetic algorithm? Given is the following definition from John R. Koza:

The genetic algorithm is a probabilistic search algorithm that iteratively transforms a set (called a population) of mathematical objects (typically fixed-length binary character strings), each with an associated fitness value, into a new population of offspring objects using the Darwinian principle of natural selection and using operations that are patterned after naturally occurring genetic operations, such as crossover (sexual recombination) and mutation.

Hello world with Apache Axis2

2010-11-16T03:44:00.001-08:00

This is a step by step guide to hosting a simple Web service with Axis2 and interacting with that service using a client based on generated code.

We will be starting with a simple Java class which will be turned into a service with the necessary packaging. Then a client will be created using the code generated by the WSDL2Java code which will be used to invoke the service we created

http://people.apache.org/~ruchithf/hw-axis2/

Using Annotations to add Validity Constraints to JavaBeans Properties

2010-11-16T03:43:00.000-08:00

Currently there is no standard way to add validity constraints to Java classes. This is in contrast to other languages like XML in which (using XML Schema) relatively rich constraints may be specified. With the advent of annotations (JSR 175) in the Java 2 Platform, Standard Edition (J2SE) 5.0 a convenient mechanism now exists to allow such constraints to be specified in the Java meta model. This article explores how annotations might be used for this purpose and discusses why this may be an important capability.

http://java.sun.com/developer/technicalArticles/J2SE/constraints/annotations.html

Hibernate Validator

2010-11-16T03:42:00.000-08:00

Validating data is a common task that occurs throughout any application, from the presentation layer to the persistence layer. Often the same validation logic is implemented in each layer, proving time consuming and error-prone. To avoid duplication of these validations in each layer, developers often bundle validation logic directly into the domain model, cluttering domain classes with validation code which is really metadata about the class itself

http://docs.jboss.org/hibernate/stable/validator/reference/en-US/html_single/

Netbeans tutorials

2010-11-16T03:40:00.001-08:00

10-week Free NetBeans Platform Programming (with Passion!) Online Course - http://www.javapassion.com/nbplatform/

Top 10 NetBeans APIs (Video)
http://platform.netbeans.org/tutorials/nbm-10-top-apis.html

Swing Components

2010-11-16T03:37:00.000-08:00

http://weblogs.java.net/blog/2004/10/11/another-40-swing-component-libraries

http://weblogs.java.net/blog/2004/10/14/and-then-there-were-more-50-more-swing-component-libraries

Top Free Linux for Netbooks

2010-09-25T20:13:00.000-07:00

http://www.techtree.com/India/Features/Top_Free_Linux_for_Netbooks/551-112649-899-1.html

Conclusion

As of now I'd rate Easy Peasy as the Best Linux OS I've used till date. Jolicloud is nice too but I'd rather have offline applications pre-installed, just in case I am without Internet at any point of time. Despite bad usability, the design aspect of Meego cannot be forgotten and we will be tracking its progress closely.

So, if you're the owner of a Windows based Netbook, then I'd recommend giving Easy Peasy a try. To make a live-bootable USB drive of Easy Peasy, check these simple instructions here.

Create your own Ant task

2010-08-30T03:27:00.000-07:00

http://www.java2s.com/Code/Java/Ant/CreateyourownAnttask.htm

http://www.developer.com/java/article.php/3630721

Java Thread Synchronization

2010-08-20T01:38:00.000-07:00

One of the strengths of the Java programming language is its support for multithreading at the language level. Much of this support centers on synchronization: coordinating activities and data access among multiple threads. The mechanism that Java uses to support synchronization is the monitor. This chapter describes monitors and shows how they are used by the Java virtual machine. It describes how one aspect of monitors, the locking and unlocking of data, is supported in the instruction set.

http://www.artima.com/insidejvm/ed2/threadsynch.html

Application Performance Almanac

2010-08-16T23:02:00.000-07:00

Application Performance Almanac - http://blog.dynatrace.com/2010/01/12/dynatrace-application-performance-almanach-2010/

How to measure application peformance - http://java.sys-con.com/node/1491844

http://blog.dynatrace.com/2010/01/18/week-2-the-many-faces-of-end-user-experience-monitoring/

Who to Blame for bad application performance ? -
http://blog.dynatrace.com/2010/05/28/week-16-who-is-to-blame-for-bad-application-performance/

Oracle JDBC FAQ

2010-08-05T01:34:00.001-07:00

This document contains answers to the most frequently asked questions about Oracle's JDBC drivers. Note that these address specific technical questions only and are used to document solutions to frequent customer questions as well as any known problems. The server docs (including JDBC doc) are also available online.

Note that this FAQ contains information about all released versions of the Oracle JDBC drivers. Anything that is not described as pertaining only to certain versions should pertain to all the versions. Or to the current version. At the time the question was asked.

Building a Swing Validation Package with InputVerifier

2010-07-28T04:05:00.000-07:00

Combining the InputVerifier along with Validators should make it pretty powerful to use -
http://www.javalobby.org/java/forums/t20551.html

Validators can be found here -
http://java.dzone.com/news/how-quickly-add-validation
http://kenai.com/projects/simplevalidation/pages/Home

Java Memory Management White paper

2010-07-20T03:27:00.000-07:00

http://java.sun.com/j2se/reference/whitepapers/memorymanagement_whitepaper.pdf

JConsole tutorials (Configuring JMX)

2010-07-20T01:53:00.000-07:00

http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/technotes/guides/management/jconsole.html

Configuring JMX - http://download.oracle.com/docs/cd/E17476_01/javase/1.5.0/docs/guide/management/agent.html#remote

Using JConsole - http://download.oracle.com/docs/cd/E17476_01/javase/1.5.0/docs/guide/management/jconsole.html

Rewarding Your Team - Why Thank You is so important

2010-06-27T23:36:00.000-07:00

http://mindtools.com/pages/article/newTMM_54.htm

Ideas for Rewarding Your Team

As we said earlier, chances are high that your team isn't looking for a bonus check or pay raise to feel appreciated. Often, smaller gestures go further and end up costing you less in the long run. Here are some creative ideas to consider for showing appreciation to your team:

Offer flexible scheduling - not everyone needs, or wants, to be in the office at 8:00 a.m. Or, you could offer telecommuting days.
Send handwritten thank-you notes when someone goes above and beyond the requirements of the job.
Create "free day" coupons that a worker could use for a free day off - no questions asked - without using vacation or sick time.
Take your team out to lunch - and then, as a last-minute surprise, give them the rest of the day off.
Give out "lazy Monday" coupons to allow a team member one "free" Monday morning off.
If you e-mail a team member to say thank you, consider copying that message to YOUR boss.

How to Become an Expert. Top 7 Qualities

2010-05-31T02:28:00.000-07:00

http://softwarecreation.org/2009/how-to-become-an-expert-top-7-qualities/

Questions to Ask Yourself
1.Motivation – Am I ready? How can I boost my strength, energy and motivation? How will I succeed?
2.Focus – How do I maintain focus, stay committed and interested? Do I have clear goals, action plan and productive environment?
3.Critical thinking – What are hard facts, assumptions and theories? What should I trust, dismiss or verify?
4.Full Brain power – How can I engage my both brain modes? What puzzles can I feed to my subconscious mind?
5.Continuous Learning – What do I not know? How will I learn it? How will I share it?
6.Self Improvement – What can I do better? How can I improve myself? Am I honest with myself?
7.Creative solutions – What is the big picture: forces, players and relations? How things can be done better? Do I see new ways?

Eclipse RCP & PDE online training

2010-05-05T07:28:00.000-07:00

http://rcpquickstart.com/2007/06/06/getting-started-with-pde-build/

RCP Quickstart Outline

This 3-day course is divided into 6 sessions, one to be held in the morning and one in the afternoon. Each session lasts about 3 hours and includes both lecture and labs.

Morning Day 1 – Plug-ins and the PDE

Introduction to the Rich Client Platform
Plug-in model
Anatomy of a single plug-in
Creating a plug-in with the PDE
Plug-in manifests
Plug-in dependencies
Plug-in encapsulation
Extensions and extension points
Features
Fragments
Running your code

Afternoon Day 1 – SWT and JFace

SWT Overview
Widgets and controls
Composites and groups
Layout managers
Events and listeners
JFace viewer framework
Dialogs
Data binding

Morning Day 2 – RCP Basics

Workbench structure and services
Selection service
Workbench life-cycle
Perspectives and perspective layouts
Views and mementos
Target platforms
Products and branding
Creating an application with the PDE

Afternoon Day 2 – Menus and wizards

Workbench menus
Actions and ActionBars
Commands, handlers and menus
Wizard framework
Integrating wizards into the workbench

Morning Day 3 – Editors and Forms API

Editor construction
Editor inputs
Editor life-cycle management
Forms API
Forms editor framework
File system integration

Afternoon Day 3 – Preferences, Concurrency and more

Preferences API
Creating preference pages
Creating extension points
Jobs API
Incorporating help content

Morning Day 1 – Introduction to OSGi

History and purpose of OSGi
Modularity and OSGi
Anatomy of a bundle

Afternoon Day 1 – Dependencies and Lifecycle

Bundle dependencies
Versioning
Lifecycle and activators

Morning Day 2 – OSGi Services

Core services framework
Declarative Services
Spring DM

Afternoon Day 2 – OSGi Best Practices

OSGi tooling
OSGi migration best practices
Architectural best practices
OSGi design patterns and refactorings

Ubuntu installation via pen drive

2010-05-05T07:23:00.001-07:00

https://wiki.ubuntu.com/LiveUsbPendrivePersistent

http://en.wikipedia.org/wiki/UNetbootin

http://www.pendrivelinux.com/usb-kubuntu-804-persistent-install-via-the-live-cd/

http://www.pendrivelinux.com/usb-kubuntu-810-install-via-usb-creator/

43 Essential Controls for web development

2010-04-27T02:07:00.000-07:00

http://www.uxbooth.com/blog/essential-controls-for-web-applications/

Good Tech Links

2010-04-20T04:04:00.000-07:00

InvocationHandler & Dynamic Proxy -http://www.webreference.com/internet/reflection/3.html
Java Socket Programming - http://zerioh.tripod.com/ressources/sockets.html
Java Socket Programming - http://edn.embarcadero.com/article/31995
Java Garbage Collection - http://chaoticjava.com/posts/how-does-garbage-collection-work/
Java Garbage Collection (parallel) - http://chaoticjava.com/posts/parallel-and-concurrent-garbage-collectors/
400 Puzzles - http://www.scribd.com/doc/8415144/400-Puzzles-and-answers-for-Interview
Tech Interview Questions - http://www.thecareerplus.com/?page=resources&cat=10
Binary Trees - http://cslibrary.stanford.edu/110/BinaryTrees.html
Tree Traversal - http://en.wikipedia.org/wiki/Tree_traversal

Top 10 Tools for a Free Online Education

2010-03-07T22:27:00.000-08:00

Free lance programming

2010-03-02T05:07:00.001-08:00

Using sites like oDesk, Elance, Guru, and RentACoder to find the best developers

http://www.inc.com/magazine/20090501/technology-finding-freelance-programmers.html

Five days of Apache Wicket

2010-02-25T02:07:00.000-08:00

5 days of Wicket!

Source: http://www.mysticcoders.com/blog/2009/03/09/5-days-of-wicket/

Jetty Tutorials

2010-02-21T22:24:00.000-08:00

War-less Development with Jetty

2010-02-19T01:04:00.000-08:00

http://www.draconianoverlord.com/2009/01/10/war-less-dev-with-jetty.html

Good Eclipse starters

2010-02-11T23:20:00.000-08:00

http://www3.ntu.edu.sg/home/ehchua/programming/howto/Eclipse_java_HowTo.html (love the fonts used here)

http://www.eclipse.org/eclipse/platform-core/documents/3.1/debug.html

How to redirect eclipse console output to a file ?
Answer > Common tab of launch configuration > Standard Input & Output > File

Eclipse RAP

2010-02-08T05:30:00.000-08:00

In a nutshell: “RAP brings RCP applications into the browser”.

Single Sourcing

A popular use case for RAP is the development of rich clients and web clients from a single code base, also called “Single Sourcing”.

Application vendors are increasingly required to provide both desktop and web clients for their customers. But these platforms are based on very different technologies which generally demand different programming paradigms and skills that make it difficult to reuse code. The need for specialized development skills and for implementing the same thing twice increases the cost of production without adding substantial value to the project.

The Rich Ajax Platform (RAP) was designed to address exactly these problems for the Eclipse world. RAP allows Java and Eclipse developers to reuse their existing skills through a Java-based development model for web-clients. Furthermore, RAP maximizes code reuse by including the largest-possible web-enabled subset of the Rich Client Platform.

http://www.eclipse.org/rap/introduction.php

http://www.ibm.com/developerworks/library/os-eclipse-richajax1/index.html

Vaadin

2010-02-06T07:45:00.000-08:00

Vaadin is a server-side Ajax web application development framework that allows you to build web applications just like with traditional desktop frameworks, such as AWT or Swing. This DZone Refcard povides an indepth introduction to Vaadin including: Creating an Application, Components, Data Binding, Widget Project Structure, and more.

Features of Vaadin - http://vaadin.com/features

Vaadin Comparison - http://vaadin.com/comparison

Hello World in Vaadin - http://vaadin.com/book/-/page/intro.walkthrough.html

Setting up application environment - http://vaadin.com/book/-/page/application.environment.html

Good guide for beginners - http://vaadin.com/book/-/page/getting-started.first-project.html

Why Prepared Statements are important and how to use them "properly"

2009-11-11T19:14:00.000-08:00

http://www.theserverside.com/tt/articles/article.tss?l=Prepared-Statments

.....
How does a database execute a statement?
Obviously, don't expect alot of detail here; we'll only examine the aspects important to this article. When a database receives a statement, the database engine first parses the statement and looks for syntax errors. Once the statement is parsed, the database needs to figure out the most efficient way to execute the statement. This can be computationally quite expensive. The database checks what indexes, if any, can help, or whether it should do a full read of all rows in a table. Databases use statistics on the data to figure out what is the best way. Once the query plan is created then it can be executed by the database engine.

It takes CPU power to do the access plan generation. Ideally, if we send the same statement to the database twice, then we'd like the database to reuse the access plan for the first statement. This uses less CPU than if it regenerated the plan a second time.
....
When the J2EE server gives your application a connection, it isn't giving you the actual connection; you're getting a wrapper. You can verify this by looking at the name of the class for the connection you are given. It won't be a database JDBC connection, it'll be a class created by your application server. Normally, if you called close on a connection then the jdbc driver closes the connection. We want the connection to be returned to the pool when close is called by a J2EE application. We do this by making a proxy jdbc connection class that looks like a real connection. It has a reference to the actual connection. When we invoke any method on the connection then the proxy forwards the call to the real connection. But, when we call methods such as close instead of calling close on the real connection, it simply returns the connection to the connection pool and then marks the proxy connection as invalid so that if it is used again by the application we'll get an exception.

Import/Export keys preferences in Eclipse

2009-11-04T00:30:00.000-08:00

Export preferences using : File -> Export -> Preferences ->"Choose Specific Preferences to Export" & choose "Keys Preferences"

You import the preferences file into your new workspace using File->Import -> Preferences.

See "Save your Shortcuts" section - http://robertmarkbramprogrammer.blogspot.com/2007/07/eclipse-shortcuts.html

Generate Java Beans from Database

2009-11-03T22:37:00.000-08:00

http://wiki.netbeans.org/DevFaqAppClientOnNbPlatformTut

1) Create an Enterprise Application Project (with Application Client and EJB module) in Netbeans
2) Right click on ejb project in Project tab and select New -> Entity Classes From Database. In wizard chose as datasource jdbc/sample datasource and select the tables that need the entity beans.

Using the Spring Framework with the Teradata Plug-in for Eclipse

2009-11-03T03:40:00.000-08:00

http://developer.teradata.com/tools/articles/using-the-spring-framework-with-the-teradata-plug-in-for-eclipse

This will be a series of articles explaining how the Spring framework can be used with the Teradata Plug-in for Eclipse to create a data access layer for your business services. The Java Bean Wrapper wizard allows the user to quickly generate a Java Bean class for a given SQL statement or stored procedure. Also the Wizard has an option to generate a Java Bean which
can be run with the Spring Data Access Object (DAO) framework. By calling a generated Java Bean from a DAO, the Bean will have access to the Spring transaction management. Also the Java Wrapper Beans are reusable components which could be used in different DAOs. The Bean Helper Classes can be used as Spring domain objects. Also the Bean will facilitate the support of OUT
parameters for stored procedures and multiple result sets inside of a Spring DAO.
This article will show how to setup a project that uses Spring DAOs with the Teradata Plug-in for Eclipse. This article will also show how to create Java Bean Wrapper classes that can be called from a Spring DAO using the Java Bean Wrapper Wizard.

http://developer.teradata.com/tools/articles/getting-started-with-teradata-plug-in-for-eclipse

Registry Problems - Double clicking a folder opens in new window

2009-10-28T22:20:00.000-07:00

Why drive opens in new window?
It happens when a program or virus tries to edit the File Folder or Drive shell entries to add more context menu items and set them as default for double click action.

Read more: http://www.troublefixers.com/drive-opens-in-new-window-on-double-click-in-windows-xp/#ixzz0VIcluuP9

Lets see how we can fix this.

Fix:

First Method:
1. Open Start >> Run and type regsvr32 /i shell32.dll
2. press ok
3. You will see a message DllRegisterServer and DllInstall in shell32.dll succeeded
4. that’s it

Second Method:
1. Open Start >> Run and type regedit
2. Navigate to HKEY_CLASSES_ROOT/Directory/Shell
3. Double click the default key type none and press ok.
4. now navigate to HKEY_CLASSES_ROOT/Drive/Shell.
5. Double click the default key type none and press ok.

Third Method:
If you don’t want to play with the registry ,you can run the following command instead at
Run Prompt: ( Open Start >> Run )
“reg add hkcr\drive\shell /ve /d none /f” (without double quotes)
We hope at least one of the above method may work for you to fix the trouble, if not please let us know.

Just compiled a registry tweak, so if none of the above given methods works for you, then try downloading this registry file from here(http://troublefixers.com/wp-content/uploads/Miscellaneous/Open_in_Same_Window.reg ) and merge it into your registry by double clicking the file.
After merging the registry file you may need to restart your system, so that the changes can reflect
Note: If still after following the above you are not able to solve the problem then update your antivirus and run a complete scan and make your system virus free. Click here to scan with

Read more: http://www.troublefixers.com/drive-opens-in-new-window-on-double-click-in-windows-xp/#ixzz0VIdEgVTR

Architecture Diagrams (Oracle vs Microsoft)

2009-10-28T03:19:00.001-07:00

Oracle Server Architecture -

Microsoft Longhorn Architecture -

Intellij Open Sourced

2009-10-21T23:02:00.000-07:00

Intellij is now open sourced - http://www.jetbrains.com/idea/nextversion/free_java_ide.html

Of course we need to understand the difference between the community edition & the regular edition - http://www.jetbrains.com/idea/nextversion/editions_comparison_matrix.html

Wicket & Eclipse (using Maven)

2009-10-06T23:28:00.000-07:00

http://www.ralfebert.de/blog/wicket/wicket_eclipse_setup/

Also see - http://m2eclipse.sonatype.org/

Excellent Article on HashMaps (Oracle Website)

2009-10-06T23:17:00.000-07:00

Excellent article on Hashmaps (and implementation)
http://www.oracle.com/technology/pub/articles/maps1.html

Hashing Internals: Hash Mapping Technique
Almost all the general purpose Maps use hash mapping. This is quite a simple mechanism for mapping elements into an array, and it is worth understanding how hash mapping works so that you can get the best out of your Maps.

Hash map structures consist of an internal array where elements are stored. Since the internal
storage is an array, clearly there must be a mechanism for determining an index into the array for an arbitrary key. In fact, the mechanism needs to give an integer index value which is smaller than the size of the array. This mechanism is called the hash function. In Java hashed based Maps, the hash function converts any object into an integer that fits into the internal array. You don't have to look hard to find an easily available hash function: every object has a
hashCode() method which returns an integer value. To map that value into any array, it is sufficient to convert it to a positive value and take the remainder after dividing by the array size. So here is a simple hash function for Java that works for any object

int hashvalue = Maths.abs(key.hashCode()) % table.length;
(The % binary operator, known as modulo, returns the remainder as an integer after dividing the left hand side by the right hand side.)
In fact, until the 1.4 release, this was exactly the hash function that was used by the various hash based Map classes. Though if you look in the code you will see

int hashvalue = (key.hashCode() & 0x7FFFFFFF) % table.length;
which is essentially the same function, using a faster mechanism to get a positive
value. From the 1.4 release, the HashMap class implementation uses a different
and more complex hash function, based on Doug Lea's util.concurrent packages
(I'll talk about Doug Lea's classes again in a little more detail later).

Figure 3: How hashing works
So that gives the basic groundwork for hash mapping, but we haven't quite taken care of everything. Our hash function maps an arbitrary object into an array location, but what happens if two different keys map to the same location? Nothing prevents that from occurring. In the parlance of hash mapping, this is called a collision. The way the maps deal with these collisions is to insert a linked list at the index location, and simply add elements to the linked list. So a basic put() method for a hash based Map could look like this public Object put(Object key, Object value) {
//Our internal array is an array of Entry objects
//Entry[] table;
//Get the hashcode, and map to an index
int hash = key.hashCode();
int index = (hash & 0x7FFFFFFF) %
table.length;
//Loop through the linked list at table[index] to see if
//we already have this key entry — and if so overwrite it
for (Entry e = table[index] ; e != null ; e = e.next) {
//Must check that the key is equal, since the hash could be the same for different key objects

if ((e.hash == hash) && e.key.equals(key)) {
//This is the same key, overwrite the value and keep the old value to return from the method
Object old = e.value;
e.value = value;
return
old;
}
}
//Still here, so it's a new key, just add a new Entry An Entry object has Object "key" and value",

//an int "hash", and an Entry "next" to point to the next Entry in the list
//Create a new Entry pointing to the start of the previous
//list, and insert that new Entry into the table
Entry e = new Entry(hash, key, value, table[index]);
table[index] = e;
return null;
}
If you look at the source for various hash based Map's you'll see this is pretty much how they work. There are some further considerations, like handling null keys and values, and re-sizing the internal array. The put() method defined here also includes the algorithm for the corresponding get(), since the insertion includes searching the entries at the mapped index to see if the key is already present. (I.e. the get() method is the same algorithm as the put(), but without the insertion and overwite code.) Using a linked list is not the only way to handle collisions, and some of the hash maps use another "open addressing" scheme which I won't go into here.

Using Load Factors
In order to decide when to re-size, rather than keep a count of the depth of linked list in each bucket, the hash based Maps use an extra parameter and a rough calculation of how densely packed the buckets are. The Maps use a parameter called "load factor" which indicates how much "load" the Map will take, i.e. how full it will get, before it resizes.

The relationship between load factor, number of entries (map size), and the
capacity is straightforward:
When (load factor) x (capacity) > (map size), then the map will be re-sized
So, for example, if the default load factor is 0.75, and the default capacity is 11, then 11 x 0.75 = 8.25, which is rounded down to 8 elements. So when we add the eighth entry to this Map, the Map will re-size itself to a larger value. Conversely, to calculate what initial capacity you need in order to avoid re-sizing, divide the number of entries you will make by the load factor and round up, e.g.
For 100 entries with load factor of 0.75, then capacity should be set to 100/0.75 = 133.33, rounded up to 134 (or 135 to use an odd number)
Buckets sizes that are odd numbers should let the map perform more efficiently by reducing the number of collisions. Ideally prime numbers should be used for capacities, though tests I've made don't show prime numbers producing consistently better times (Test4 in the associated files). Some Maps since the 1.4 release (e.g. HashMap and LinkedHashMap but not Hashtable or
IdentityHashMap) use a hash function that needs powers-of-two capacities, but the next highest power-of-two capacity is automatically calculated by those Maps so you don't need to try and calculate it yourself. The load factor itself is a tuning tradeoff between space and time. Smaller load factors will take more space but will reduce the likelihood of collisions, thus making access and updates faster. Load factors above 0.75 are probably unwise, and above 1.0 are definitely unwise since that guarantees at least one collision. Load factors below 0.50 will give you diminishing returns, but there should be no performance cost to small load factors as long as you size the map effectively, only a memory cost. But smaller load factors will imply more frequent resizing if you don't pre-size the Map, and that will incur a performance penalty, so do bear
that in mind if you are tuning the load factor.

Setting up Wicket in Netbeans 6.7

2009-10-06T21:22:00.002-07:00

Get the plugin in here - http://plugins.netbeans.org/PluginPortal/faces/PluginDetailPage.jsp?pluginid=3586
Next follow the below tutorials -
http://www.netbeans.org/kb/docs/web/quickstart-webapps-wicket.html
http://www.netbeans.org/kb/55/quickstart-wicket-in-netbeans.html
http://wicketinaction.com/2009/01/a-dummys-guide-to-wicket-on-netbeans-tv/

Migrating to Apache Wicket – GIDS presentation slides

2009-09-16T03:15:00.000-07:00

http://ptrthomas.files.wordpress.com/2008/05/peter_thomas_migrating_to_apache_wicket.pdf
A very interesting presentation. I liked Thomas style of explanaing things with concrete examples and the comparison of other technologies with Wicket.

Wicket with Spring

2009-09-16T02:00:00.000-07:00

Spring MVC Fast Tutorial

2009-09-14T01:00:00.000-07:00

A very good tutorial on Spring - http://maestric.com/doc/java/spring

Comparison of Java Web Frameworks

2009-09-14T00:30:00.000-07:00

Comparison of - JSF, Spring MVC, Stripes, Struts 2, Tapestry and Wicket
http://static.raibledesigns.com/repository/presentations/ComparingJavaWebFrameworks-OSCON2007.pdf

Apache Wicket

2009-09-10T02:55:00.000-07:00

Good links to Getting started with Apache Wicket -
http://www.theserverside.com/tt/articles/content/IntroducingApacheWicket/article.html
http://cwiki.apache.org/WICKET/windows-guide-to-installing-wicket-on-eclipse-with-maven.html
http://www.mkyong.com/wicket/how-do-setup-wicket-examples-in-eclipse/

http://www.ensode.net/wicket_first_look.html

How NTFS Works

2009-09-01T02:10:00.000-07:00

How NTFS Works -
http://technet.microsoft.com/en-us/library/cc781134%28WS.10%29.aspx

Generating Sequence Diagrams for Java Classes

2009-08-03T02:39:00.001-07:00

http://mrhaki.blogspot.com/2009/03/connect-lifelines-in-uml-sequence.html
http://code.google.com/p/jtracert/

Grails

2009-07-24T03:15:00.000-07:00

http://www.google.com/search?q=grails+tutorial&sourceid=ie7&rls=com.microsoft:en-US&ie=utf8&oe=utf8

http://www.grails.org/Tutorials

http://www.vogella.de/articles/Grails/article.html

http://www.ibm.com/developerworks/views/java/libraryview.jsp?search_by=mastering+grails

http://blog.openmind.ws/2009/06/10/grails-layouts-with-sitemesh/

http://www.syger.it/Tutorials/GrailsWebAlbum.html

http://www.grails.org/Eclipse+IDE+Integration

http://www.ibm.com/developerworks/java/library/j-grails01158/index.html?S_TACT=105AGX02&S_CMP=EDU

http://josh-in-antarctica.blogspot.com/2008/04/writing-simple-issue-tracker-in-grails.html

http://josh-in-antarctica.blogspot.com/2008/05/writing-simple-issue-tracker-in-grails.html

http://www.ibm.com/developerworks/java/library/j-grails01209/index.html?S_TACT=105AGX02&S_CMP=EDU

http://www.grails.org/plugin/form-helper
http://www.grails.org/plugin/grails-ui
http://www.opengalen.org/tutorials/grail/tutorial51.html
http://www.grails.org/plugin/richui
http://www.ibm.com/developerworks/web/library/j-grails03118/index.html
http://www.grailstutorials.com/tagging/list/gsp?selectedTag=gsp
http://www.grails.org/NetBeans+Integration
http://groovy.codehaus.org/Documentation

Java - Program to Interfaces

2009-07-09T23:29:00.000-07:00

* Design Principles from Design Patterns A Conversation with Erich Gamma, Part III - http://www.artima.com/lejava/articles/designprinciples.html

* Program to an interface, not an implementation - http://pragmaticjava.blogspot.com/2008/08/program-to-interface-not-implementation.html

* Java interface design FAQ - http://www.codestyle.org/java/faq-Interface.shtml

* Smarter Java development - http://www.javaworld.com/javaworld/jw-08-1999/jw-08-interfaces.html

Developing Eclipse Plugins

2009-07-06T22:59:00.001-07:00

http://www.vogella.de/eclipse.html

Netbeans & Databases

2009-07-06T22:54:00.001-07:00

This document demonstrates how to set up a connection to Sun's Java DB (which is based on the Apache Derby database) in NetBeans IDE. Once a connection is made, you can begin working with the database in the IDE, allowing you to create tables, populate them with data, run SQL queries, and more.

The Java DB database is Sun's supported distribution of Apache Derby. Java DB is a fully transactional, secure, standards-based database server, written entirely in Java, and fully supports SQL, JDBC API, and Java EE technology. The Java DB database is packaged with the Sun Java System Application Server 9.0, Platform Edition, and is now included in JDK 6 as well.

Working with the Java DB (Derby) Database in NetBeans IDE - http://www.netbeans.org/kb/55/derby-demo.html

JavaTM Architecture for XML Binding Using XJC with Ant (RI 2.0)

2009-05-15T06:50:00.000-07:00

https://jaxb.dev.java.net/nonav/2.0.2/docs/xjcTask.html

The jaxb-xjc.jar file contains the XJCTask.class file, which allows the XJC binding compiler to be invoked from the Ant build tool. To use XJCTask, include the following statement in your build.xml file:

This maps XJCTask to an Ant task named xjc. For detailed examples of using this task, refer to any of the build.xml files used by the sample applications.

Older Version (RI 1.0.5) - http://java.sun.com/webservices/docs/1.6/jaxb/ant.html

Converting a Java project to a Dynamic Web project in Eclipse

2009-05-11T21:05:00.000-07:00

To convert a Java Project to a Web Project switch to or open the Resource Perspective of the project, in the root of the project. Open the .project file and make sure the builders and natures are present that are needed for a web project.

http://eclipse.dzone.com/tips/converting-java-project-dynami

Java Servlet Filter tutorial example using Eclipse & Tomcat

2009-05-11T21:03:00.001-07:00

Servlet Filters are the latest components that are added in Servlet 2.3 specifications. These filters are used basically for intercepting and modifying requests and response from server. ...

http://viralpatel.net/blogs/2009/01/tutorial-java-servlet-filter-example-using-eclipse-apache-tomcat.html

Outlook handles mutliple time zones

2009-04-21T08:21:00.000-07:00

How outlook handles multiple time zones - http://support.microsoft.com/kb/195900

Outlook appointments & Time zones - http://www.slipstick.com/calendar/timezone.asp

Microsoft time zone tool - http://www.microsoft.com/downloads/details.aspx?FamilyID=07fb0bd8-f390-458d-a629-6f0258ac7cdf&Displa

How to enable multiple time zone display in outlook - To turn on dual time zone display, go to Tools, Options, Preferences tab, Calendar Options, Time Zone button and add a second time zone. Now when you view the calendar in a day planner format, you'll see two time scales displayed. You can right click on the scale and choose Time zones.. to change zones or swap them.

Eclipse on Solaris

2009-04-19T22:46:00.000-07:00

http://eclipse.panton.com.mk/downloads/drops/R-3.2-200606291905/eclipse-SDK-3.2-solaris-gtk-x86.zip

http://www.google.co.in/search?q=eclipse-SDK-3.2-solaris-gtk-x86.zip

Java Application as Windows Service

2009-04-16T23:40:00.000-07:00

Apache Daemon - http://commons.apache.org/daemon/

Microsoft - How To Create a User-Defined Service http://support.microsoft.com/kb/137890

Very nice tutorial on using the Apache Daemon
Java as Windows Service with Apache Commons Daemon

So beautiful, So Disturbing

2009-04-14T23:06:00.000-07:00

Interesting write up on Vista.

Filters in Action

2009-04-07T02:08:00.000-07:00

For my current work I need to modify the output of dynamic web content belonging to multiple projects
a) Generate XML as O/P
b) Based on user input, have default values for the current (html) content

I would like to solve the problem by
a) Not modifying the existing code (so I don't accidentally break something)
b) Have a generic pluggable mechanism by which I can use the same code for the different projects.

I can solve the above problem using a combination of filters & open source HTML parser.

Links -

Very Good
http://java.sun.com/products/servlet/Filters.html

http://www.di.unipi.it/~ghelli/didattica/bdl/A97329_03/web.902/a95878/filters.htm

http://www.roseindia.net/servlets/response-filte.shtml

http://www.orionserver.com/tutorials/filters/1.html

http://www.onjava.com/pub/a/onjava/2003/11/19/filters.html

http://userpages.umbc.edu/~tarr/jst/lectures/M12-Filters.pdf (For modifying servlet/jsp output see page 30-34)

Good

http://viralpatel.net/blogs/2009/02/http-session-handling-tutorial-using-servlet-filters-session-error-filter-servlet-filter.html

http://www.java.happycodings.com/Java_Servlets/code27.html

HTML Parsers (Java Based)

Jericho - A simple but powerful java library for parsing and modifying HTML documents, including analysis of abritrary HTML forms to determine the structure of submitted data.
http://jerichohtml.sourceforge.net/doc/index.html (Jericho)

NekoHTML is a simple HTML scanner and tag balancer that enables application programmers to parse HTML documents and access the information using standard XML interfaces. The parser can scan HTML files and "fix up" many common mistakes that human (and computer) authors make in writing HTML documents. NekoHTML adds missing parent elements; automatically closes elements with optional end tags; and can handle mismatched inline element tags.
http://sourceforge.net/project/showfiles.php?group_id=195122&package_id=230313 (NekoHTML)

Open source HTML Parsers

http://java-source.net/open-source/html-parsers

Eclipse helps keep your Java Code Clean

2009-04-02T06:28:00.000-07:00

Keep your Java Code clean by using the eclipse "Code Clean up" feature - http://www.ibm.com/developerworks/library/os-eclipse-clean/index.html

Remote debugging of Tomcat with Eclipse

2009-03-24T23:14:00.000-07:00

Create a debug.bat file in TomCat’s bin directory and add these lines.

@echo off
set JPDA_TRANSPORT="dt_socket"
set JPDA_ADDRESS="8000"
set JPDA_SUSPEND="y"
catalina.bat jpda start

Step 2: Add “Remote Java Application” in Eclipse’s Debug

Remember to set the port number as the 1 you set in Step#1 and hits “Debug” button
p/s: pls set your break-points before you do this remote debug configuration

Step 3: Starts Tomcat
Go to "../tomcat/bin", launch the debug.bat

Remote Debugging (JBoss) with Eclipse - http://www.onjava.com/pub/a/onjava/2005/08/31/eclipse-jboss-remote-debug.html?page=1

Remote Debugging with Eclipse - http://www.jacoozi.com/index.php?option=com_content&task=view&id=119&Itemid=134

Requires dW login
Debug JAVA APPLICATIONS with ECLIPSE -
http://www.ibm.com/developerworks/opensource/library/os-eclipse-javadebug/index.html?S_TACT=105AGX44&S_CMP=EDU

Remote debugging with eclipse & tomcat - http://ihategeek.wordpress.com/2007/06/25/remote-debugging-with-eclipse-and-tomcat/

Remote Debug Tomcat in Eclipse - http://alfredjava.wordpress.com/2008/04/24/remote-debug-tomcat-in-eclipse/

Running Tomcat in Debug Mode - http://sebthom.de/135-running-tomcat-6-debug-mode-windows/

Starting Tomcat in Debug Mode - http://techpitcher.com/starting-tomcat-6x-in-debug-mode.html

How to start tomcat in debug mode - http://www.tek-tips.com/viewthread.cfm?qid=1303437&page=1

Installing Tomcat 6 & using it with Eclipse -
http://www.scribd.com/doc/495993/Installing-Apache-Tomcat-6-and-Using-It-With-Eclipse

Configure Tomcat in debug Mode - http://www.coderanch.com/t/87454/Tomcat/configure-Tomcat-debug-mode

Architecture @ developerWorks

2009-03-24T07:37:00.000-07:00

Architecture @ developerWorks -
http://www.ibm.com/developerworks/views/architecture/library.jsp

developerWorks tutorials

2009-03-24T07:36:00.001-07:00

developerWorks tutorials - http://www.ibm.com/developerworks/views/java/libraryview.jsp?type_by=Tutorials

Eclipse Links

2009-03-24T07:17:00.000-07:00

Note - You may have to sign into developerWorks to view some of the articles

Remote Debug Java Applications with Eclipse - http://www.ibm.com/developerworks/opensource/library/os-eclipse-javadebug/index.html?S_TACT=105AGX44&S_CMP=EDU

Remote Debugging (JBoss) with Eclipse - http://www.onjava.com/pub/a/onjava/2005/08/31/eclipse-jboss-remote-debug.html?page=1

Extend Eclipse JDT - http://www.ibm.com/developerworks/java/library/os-ecjdt/

Technical library on Eclipse @ DeveloperWorks - http://www.ibm.com/developerworks/views/opensource/libraryview.jsp?search_by=eclipse

Recommended Eclipse Reading Links - http://www.ibm.com/developerworks/library/os-ecl-read/?S_TACT=105AGX44&S_CMP=ART

Rich AJAX Platform - http://www.ibm.com/developerworks/library/os-eclipse-richajax1/index.html

Moving from RCP to RAP - https://www6.software.ibm.com/developerworks/education/os-eclipse-ganymede-pt2/os-eclipse-ganymede-pt2-pdf.pdf

Developing eSWT for Nokia S60 -
http://www.ibm.com/developerworks/edu/os-dw-os-eclipse-eswt.html?S_TACT=105AGX44&S_CMP=EDU

Part 1 - Eclipse IDE Workbench - http://www.ibm.com/developerworks/opensource/library/os-eclipse-master1/index.html?S_TACT=105AGX44&S_CMP=EDU

Part 2 - The JDT - http://www.ibm.com/developerworks/opensource/library/os-eclipse-master2/index.html?S_TACT=105AGX44&S_CMP=EDU

Part 3 - JDT Tips & Tricks - http://www.ibm.com/developerworks/opensource/library/os-eclipse-master3/index.html?S_TACT=105AGX44&S_CMP=EDU

Using Eclipse Ganymede to develop for the desktop, Web and mobile devices, Part 2:
Developing for the Rich Client Platform, the Ganymede way RAP: The new way to the Web - https://www6.software.ibm.com/developerworks/education/os-eclipse-ganymede-pt2/os-eclipse-ganymede-pt2-pdf.pdf

Getting Started with Eclipse - http://www.ibm.com/developerworks/opensource/library/os-ecov/?S_TACT=105AGX44&S_CMP=ART

Eclipse Code Templates - http://www.ibm.com/developerworks/edu/os-dw-os-eclipse-code-templates.html?S_TACT=105AGX44&S_CMP=EDU

Getting Started with Eclipse Platform - http://www.ibm.com/developerworks/opensource/library/os-eclipse-platform/?S_TACT=105AGX44&S_CMP=ART

Create stand alone web services applications with Eclipse - https://www6.software.ibm.com/developerworks/education/ws-eclipse-javase1/index.html

Create your own eclipse plug-in template - http://www.ibm.com/developerworks/opensource/library/os-eclipse-plugin-templates/index.html?S_TACT=105AGX44&S_CMP=ART

Eclipse technical library by IBM

2009-03-23T00:06:00.000-07:00

Very nice resource page for learning eclipse

http://www.ibm.com/developerworks/views/opensource/libraryview.jsp?search_by=eclipse

Java theory and practice: Concurrency made simple

2009-03-17T00:10:00.000-07:00

http://www.ibm.com/developerworks/java/library/j-jtp1126.html

An introduction to the util.concurrent package developerWorks

Level: Intermediate

Brian Goetz (brian@quiotix.com), Principal Consultant, Quiotix Corp
Java theory and practice: Concurrency made simple

Interactive Map of Linux Kernel

2009-03-16T23:08:00.000-07:00

Interactive Map of Linux Kernel

The Linux Kernel is one of the most complex open source projects. There are a lot of books, however it is still a difficult subject to comprehend. The Interactive map of Linux Kernel gives you a top-down view of the Kernel.

http://www.makelinux.net/kernel_map#sd

Write your own Twitter application Archive your tweets with Apache Commons HttpClient, dom4j, and iText

2009-03-11T02:14:00.000-07:00

http://www.javaworld.com/javaworld/jw-03-2009/jw-03-write-your-own-twitter-app.html?page=1

Complete Article -- Write your own Twitter application Archive your tweets with Apache Commons HttpClient, dom4j, and iText

....
You'll build your application with the help of three open source Java libraries:

* HttpClient 3.x from the Apache Commons library. You'll use this API to obtain an XML stream of tweets from the Twitter API, as well as the Commons Logging and Codec components.
* dom4j to parse the XML and extract specific data from each tweet.
* iText to create the PDF document.

This is a hands-on tutorial, so download those libraries if you haven't already done so. I'll remind you which JARs you need from them as we go along. If you don't already have a Twitter account, set one up now and start using the service so that you have some tweets to work with.

You'll begin by writing your Twitter application as a standalone Java program. Eventually you'll integrate the code in a servlet, so that you can offer the application on your site as a service available to other Twitterati.
....

Joel on Software - How to be a program manager

2009-03-11T02:10:00.000-07:00

http://www.joelonsoftware.com/items/2009/03/09.html

"Lacking a program manager, your garden-variety super-smart programmer is going to come up with a completely baffling user interface that makes perfect sense IF YOU'RE A VULCAN (cf. git). The best programmers are notoriously brilliant, and have some trouble imagining what it must be like not to be able to memorize 16 one-letter command line arguments. These programmers then have a tendency to get attached to their first ideas, especially when they've already written the code."

Link to Complete Article .......

Software Gems

2009-02-27T01:42:00.000-08:00

My favorite Programs (all of them freeware) -

1)FreeCommander
2)Search Everything
3)Unlocker
4)Eclipse
5)Keepass
6)Notepad++
7)7Zip File Manager
8)Windows Live Mail
9) TureCrypt
10)Teracopy
11) Spybot
12) Winamp
13) Winmerge
14) CCleaner
15) Firefox
16) Rainlendar
17) IrfanView
18) Windirstat
19) XPSyspad
20) SystemExplorer
21) Mnemosyne
22) Microsoft Visual C# 2005 Express Edition
24) MediaMonkey
25) iTunesLibraryUpdater (iTLU)
26) iTunesStoreFileValidator
27) Paint.Net
28) RssOwl
29) WinSCP
30) Putty
31) Dsynchronize
32) PortableApps

Non-freeware
1) Kaspersky Antivirus

Scott Hanselman's 2007 Ultimate Developer and Power Users Tool List for Windows

2009-02-27T01:41:00.000-08:00

Scott Hanselman's 2007 Ultimate Developer and Power Users Tool List for Windows

http://www.hanselman.com/blog/ScottHanselmans2007UltimateDeveloperAndPowerUsersToolListForWindows.aspx

97 Things Every Software Architect Should Know - The Book

2009-02-27T01:39:00.000-08:00

97 Things Every Software Architect Should Know - The Book

A Recap on OSGi - Why and How?

2009-02-27T01:36:00.000-08:00

A Recap on OSGi - Why and How?

Maven or Ant?

2009-02-27T01:34:00.001-08:00

Maven or Ant?

Quote from http://java.dzone.com/news/maven-or-ant -
I use Maven and Ant in my projects, the choice is dependent on the specific needs. Maven is great if:

1. You are working with many "creative" developers. It will be hard to establish a defined project structure etc. without tool support.
2. The developers are religious about their IDE and are using IntelliJ, NetBeans and Eclipse at the same time.
3. You are building a product-like application. You will have to manage different versions and branches with their dependencies.
4. You project consists of several teams which work on dependent modules. These modules have to be composed to the application regularly.
5. You plan to use checkstyle, pmd, generate a project website etc. It's easy with Maven.

On the other hand, I would choose Ant for:

1. "Situational Software" which has to be developed quickly (in a few weeks / months).
2. Projects with external dependencies which are working with "cutting edge" libraries. There is no need for finer grained dependency management.
3. NetBeans projects :-). They come with predefined Ant scripts which even work perfectly with Hudson. Just check everything into svn and let hudson check it out...
4. Legacy projects which do not fit the Maven conventions very well. Violating Maven conventions may become a hassle.
5. Projects without explicit requirements for modularization. The deployable output will consist of only a few archives.

In my case, in the last few years the ratio between Maven and Ant was about 50-50. In all indeterminate cases, I would tend to use Ant because of performance and predictability. Such cases, however, are very rare.

How to Choose From Multiple Java/JEE Job Offers?

2009-02-27T01:25:00.000-08:00

How to Choose From Multiple Java/JEE Job Offers?

Personally I would give this point at least 30% -
How comprehensive the interview was. The more comprehensive the interview the better chance of working with high calibre staff. [E.g. weight = 5%].

Humor : Explanations of common Java exceptions

2009-02-23T22:31:00.001-08:00

Humor : Explanations of common Java exceptions

http://rymden.nu/exceptions.html

Tomcat Tutorials

2009-02-21T06:23:00.000-08:00

Tomcat Tutorial: HelloWorld for Complete Fools (http://keyboardsamurais.de/2004/01/15/tomcat_tutorial_helloworld_for_complete_fools_-_english/)

The Power of Three - Eclipse, Tomcat, and Struts (http://javaboutique.internet.com/tutorials/three/)

Tutorial on Integrating Eclipse and Tomcat (http://plato.acadiau.ca/courses/comp/dsilver/2513/EclipseAndTomcatTutorial/)

Random - Java Concurrency

2009-02-21T06:19:00.000-08:00

org.jdesktop.application
Class TaskMonitor

java.lang.Object
extended by org.jdesktop.application.AbstractBean
extended by org.jdesktop.application.TaskMonitor

public class TaskMonitor
extends AbstractBean

This class is intended to serve as the model for GUI components, like status bars, that display the state of an application's background tasks. TaskMonitor provides an overview of all the ApplicationContext's Tasks, as well as the state of a single foreground Task.

The value of getTasks() is a list of all of the Tasks whose state is not DONE for all of the ApplicationContext's TaskServices. In other words: all of the ApplicationContext's background tasks that haven't finished executing. Each time a new TaskService Task is executed it's added to the list; when the Task finishes it's removed. Each time the list changes PropertyChangeListeners are fired. Applications that wish to create a detailed visualization of all Tasks should monitor the TaskMonitor "tasks" property.

Users are often only interested in the status of a single foreground task, typically the one associated with GUI element they're working with, or with the most recent command they've issued. The TaskMonitor's PropertyChangeListener is notified each time a property of the foregroundTask changes. Additionally the TaskMonitor fires synthetic PropertyChangeEvents for properties named "pending", "started", and "done" when the corresponding Task state property changes occur.

TaskMonitor manages a queue of new Tasks. The foregroundTask is automatically set to the first new Task, and when that Task finishes, the next Task in the queue, and so on. Applications can set the foregroundTask explicitly, to better reflect what the user is doing. For example, a tabbed browsing GUI that launched one Task per tab might set the foreground Task each time the user selected a tab. To prevent the foregroundTask property from (ever) being reset automatically, one must set autoUpdateForegroundTask to false.

This class is not thread-safe. All of its methods must be called on the event dispatching thread (EDT) and all of its listeners will run on the EDT.