Java Troubleshooting: Application running inside Glassfish, unable to call a webservice

Flash Forward:  3 days already trying to troubleshooting the java code for “PrivilegedActionException” Exception , it turns out it is one parameter in Glassfish that needs to be properly adjusted.

Lets go back from the beginning: 3 days ago I was writing a JEE enterprise applciation , simply  a webpage that retrieves data from a DB2 database and then based on a user’s choice it call a webservice for some of the records in the result-set.

I followed GlassFish-Developer’s-guide to call an WS-RPC webservice. the server providing this WS-RPC is somewhere located inside our enterprise network.

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Learn vi in 100 minutes.

If your working environment  has Linux or Unix systems in it, then you must have heard about vi the text editor.

Everything would be just faster if you could edit the text files in shell window with vi, rather than transfer them to a windows with (S)FTP –> Edit with notepad –> transfer back to *NIX.

Thats why I created the “vi tutorial”. find it in my Tutorials page.

The tutorial is available here in PDF, HTML and Adobe-Flash Formats

I recommend you to have a look at the Regular Expressions tutorial also.

This tutorial:

• Explains the two modes of operations in VI.
• Explains various commands and shortcut keys for text manipulation.
• How to search and replace efficiently with regular expressions with vi.
• Using vi in several work scenarios, for example fixing CR LF windows-to-*nix problem.
• Explains 3  copy/cut’n’paste techniques possible with vi.
• How to set up vi properly.

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Oracle Virtual machine “OTN Developer Days” appliance.

If you are a developer and need your own Oracle environment to try out and test ideas without disrupting your main development environment, then I propose using a Virtual Machine with Developer Days appliance.

Choose what type of environment you want from this link and start following the instructions. I prefer the Developer Days appliance , since it requires reasonable resources and more related to my work. This virtual Machine contains:

• Oracle Enterprise Linux 5
• Oracle Database 11g Release 2 Enterprise Edition
• Oracle TimesTen In-Memory Database Cache
• Oracle XML DB
• Oracle SQL Developer
• Oracle SQL Developer Data Modeler
• Oracle Application Express 4.0
• Oracle JDeveloper
• Hands-On-Labs (accessed via the Toolbar Menu in Firefox)

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Learn Regular Expressions in 100 minutes.

Ever been in a situation where you are:

• Looking for a needle in a haystack ?
• Looking for a certain tree in the forest?

IT professionals are in such situations all the time when it comes to LOG files.

LOG files in this business are everywhere, in development, in testing and especially in production. You keep looking for error message and extract performance statistics from LOG files !

Well Regular Expressions is there to help you find your needle or tree.  It is a unique way to find TEXT PATTERNS in single lines or paragraphs.

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How to publish your Power Point PPT presentation to the web?

I have been trying to publish some of my Power Points to the web for a while now, and I was looking for an easy and straight forward way to Export *.PPT files in to a web-friendly format.

In this short article I will explain the steps taken to publish my work to the Internet.

License:

Why do I want to publish my work? and to which purpose.

I used the Creative Commons License website to help me choose the License I wish to brand my work .

Web-Friendly Formats:

After looking at what others do to publish Slides, it comes down to some of those options:

• HTML static pages.
• HTML static pages with frames.
• PDF format .
• Flash SWF.
• *.PPT downloadable and locked file viewable with the free Power-Point viewer.

Tools:

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