kallasoft

Use IHeaderResponse.renderJavaScript(CharSequence,String) to Avoid Duplicates

Apace Wicket Quick Tip
If you are working with multiple AjaxEventBehavior’s (like AjaxFormSubmitBehavior and AjaxFormValidatingBehavior) on similar components in a Page and you are using IHeaderResponse.renderJavaScript(CharSequence) it’s possible you are contributing duplicate JavaScript over and over again to the header section of your Page unecessarily.
As it turns out, by simply changing to use the IHeaderResponse.renderJavaScript(CharSequence,String) method (providing [...]

IntelliJ IDEA 9 Subversion Functionality Is Buggy as Sin

I already blogged about running into problems with IntelliJ 9’s SVN operations once before, and here I am again, unable to check a goddamn thing into my repository because it’s done it again “Checksum mismatch while updating…”
Previous to this error I tried to commit 10 changed files that had a refactored common method in them [...]

Geek and Poke Web Comic

Thanks to Eugene Ostroukhov for this awesome link to Geek and Poke web comic for geeks:

Website Gzip Online Compression Test Tool

We’ve been tweaking with the gzip compression on the web server that hosts kallasoft.com, breakitdownblog.com and upmyownass.com and I kept having to dig for online tools to quickly and easily test if the compression was working and by how much. (We’ve been adjusting the DeflateCompressionLevel argument to find a good balance between compressed page content [...]

How to Check if Apache is Running Prefork or Worker

For about the last week I’ve been trying to tweak the performance of a particular Apache server with varying degrees of success and failure. The biggest frustration is that I haven’t been able to find a way to determine which MPM mode Apache was running in: Prefork or Worker. Without that information I couldn’t tell [...]

How I Fixed the “Subversion Checksum Mismatch” Issue

From where I’m standing SVN seems to bring with it a lot of the issues that CVS had with regards to “too much” changing on your local disk and then that getting you into trouble when you went to check it into the repo.
I never figured out why exactly CVS would frequently balk at this [...]

XMLStreamReader getAttributeValue Bug Returns Null

I’m documenting this issue (and fix) here for anyone else Googling for an answer. I just did for about an hour and found no answer, but instead stumbled across the solution.
If you are using anything from the javax.xml.stream packages in Java 6 or later, you are using the Sun Java Streaming XML Parser (SJSXP) implementation [...]

What is kallasoft.com?

kallasoft.com is a programming/linux/tech blog with tips and tricks that programmers and server admins might find handy as well as the home for some of my open source projects. The most notable being:

SmugMug Java API
SmugMug Downloader

When Server Load Goes to the Moon – Slicehost ‘resize’ Comes to the Rescue

One of the member sites of The Buzz Media ran a story this morning that caused the load on the host server to go pas ‘11′… waaaay way past ‘11′ – to 257.89 to be exact according to ‘top’ (above).
This host server was not in a load-balanced configuration when the rush happened, we weren’t able [...]

WordPress Image Upload ‘Crunching’ Not Resizing Images

NOTE: I am posting this information here because I just spent 20 mins Googling for the types of phrases in the title and never got a direct answer and hope anyone else that isn’t a PHP/WordPress guru that needs help with this can find it with this post.
I migrated my WordPress sites to a new server [...]

How to Remove reycross.com WordPress Malware

It seems that a new WordPress malware hijack is making the rounds and we got hit. Google just issued me a “this site contains malware” warning for my sites, after some quick investigation it looks like the hijack has attached a malicious <iframe> block to the end of every HTML and PHP page in the [...]

SmugMug Downloader Web Start Link Fixed

It looks like on Mac the Java Web Start JNLP file used to launch the SmugMug Downloader had an invalid reference to itself and was failing to load — it seems on Windows this was working anyway.