Axis2 (or not)

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Encountered this new issue with my web service.
I am not familiar with the workings of web services, so ain't too sure if its supposed to behave this way.

I noted my web service's POJO running its constructor (no-args) everytime a client stub calls it. Somehow, the instance variables generated earlier are not being reused, and a new one is created.
Ain't sure whats really wrong.....will keep myself updated here.

[PS: The answer to this issue lies within session management. See comment for details.]

Weblogic 8.1 + Axis2

I was tasked to create a few web services using SOAP, with all the wsdl and stuff. I was recommended to use Axis2 after someone made an evaluation and found it good and easy to use.

So there i was using the bottom up approach by coding my exposed method, thereafter running the Axis2 plugins on my Eclipse 3.1.2. There were a few weird issues,

1) Somehow the archiver plug-in couldn't load some of my jars that was packaged with my base code. I had to pack up the aar file myself after reading some specifications.

2) Upon loading the aar in Weblogic, i realized that the jar files in the archive's lib folder are not being read. Resulting in several NoClassFound exceptions. As a work around, i had to place those jars in a separate directory in Axis2's web-inf/lib folder.

3) You might have guessed, somehow File(filename) codes point to Weblogic's domain folder as the root. I couldn't find my configuration files because of this. No time to mess around and thus have to throw my configuration files in those directories as well.

Its probably because i had implemented Axis2's web services incorrectly, but if the same aar is loading in Tomcat, it works..... go figure....

Swing

This ain't really a dumb mistake or anything like that, but it kept me in the office till pretty late in the night today so i will give it credit by posting it here.

There will come a time when you need to do some fancy stuff like changing ur cursor's icon while you are hovering a Swing component. What i tried today was to change my cursor while hovering across a JLabel. What was supposed to be a one liner turned out to be irritating. Somehow the JLabel's setCursor() method won't work, in the end i had to resort to creating some MouseListeners over the Jlabel and set cursor for the frame instead. Its quite untidy but i guess its a temporary patch.

explorer.exe - 100% cpu load

Its kinda stagnant to be digging into my own mistakes all the time, lets be a bit more adventurous by looking at what other people do as well. And which software has a large number of bugs with a huge user base? That has to be Micro$oft.

Alright, here goes.
If you encountered issues with your windows explorer slowing down and even hanging on you at wierd times, take a look at your task manager, its probably eating your CPU cycles. What may have happened is that during your traversal of folders in Windows Explorer, it got stuck with retrieving certain meta for some files, particularly AVI files. So one way is to disable Windows Explorer's nosey behaviour through the following methods.

Pls backup before you do the following
1. Start --> Run --> type regedit
2. Goto HKEY_CLASSES_ROOT\SystemFileAssociations\.avi\shellex\PropertyHandler
3. Delete it

Note: This will also solve issues where you can't delete certain avi files.
Note: You can extend this method to extensions of other types as well.

StackOverflow

I am pretty sure a lot of programmers encountered the StackOverflow error.
To be frank, in my early programming adventures, i never thought too much about the stack. 'Just another theory thing', i thought. But then, i learned my lessons.

Now, there ain't a lot of ways to cause stack overflows, but if you are really feeling itchy, the following mistake will certainly create it.

public void methodB() { methodA(); }

-- Call one of these methods --

public void methodA() { methodB(); }

But usually when i create stackoverflows, its usually because i call such recursive methods which are residing in different classes. So be careful, u never know when you create such a situation in the jungle of code.

if statements

Method 1: if(isTrue()) doSomething()	<--- identical --->	Method 2: if(isTrue()) { doSomething() }

Me being the bad programmer, found myself debugging for a looonnnnggg time over a very stupid mistake made from the above convenience.

I used the first method somewhere in the thick jungle of my code. After some weeks, i decided to add some operation that would do another thing before the doSomething() function, along with many other changes.

As you might have guessed, i forgot the braces, and what happens next is an hour of scratching head and tearing of hair. :)
I felt like giving myself a tight slap when i found out why my code did not work as expected.