Europheus

One of the difficulties in monitoring a java process using JMX/RMI is the random secondary port opened for the JMX RMI connection objects. This random port can change every time the process is started, and there is no way to configure a firewall to allow this dynamic port to pass through. Fortunately there are some [...]

Well this is not a professional review, just some thoughts based on my recent upgrade from Windows Vista 64 on to Windows 7 Professional 64. Now for the background, I’ve been running Vista on my main workstation (Core 2 Duo / 8gb ram) since early 2009. I only had a few issues until the end [...]

I recently ran into a problem where I needed to test a Java method that dynamically created objects inside. These objects needed to be passed to and returned by a mock service class, but I did not know how to inject this class since it was created inside the method being tested. Here is a [...]

I try not to use CVS anymore since I’ve become used to Subversion, but recently I needed to restore an old project from CVS. I made a tar of the CVS backup and uploaded to the server and placed it in the CVSROOT folder. When I checked out the project I realized the binary files [...]

After installing Continuum 1.1 and Archiva 1.1.1 a number of web pages failed to load throwing exceptions such as javax.el.ELException: Function ‘:empty’ not found. As it turns out, this has to do with Tomcat version 6.0.18 and the EL library that it comes with. As always, when on Linux, a script can fix things and [...]

Well it’s Jan 2008 and I decided to run the Plesk 8.3 update and try out the new patch for AWStats previous month history. To my surprise, (well not really) none of the previous month statistics were available, only the current month. So I set out to find a way to generate the history of [...]

As you may or may not know, Plesk likes to overwrite the .qmail file in each mail folder whenever you make changes. And as of this writing, Plesk 8.2 does not offer any .qmail template files in order for you to control it’s behavior. Here’s a handy script that will generate a .qmail and a [...]

One of the great new features of Intuit Quicken 2008 is the ability to add and synchronize a PayPal account within Quicken. This is a long awaited feature and truly a selling point for this new version. But don’t be fooled into thinking that it actually works, no no no! There are two major flaws [...]

By default, your MySQL server can be wide open to the internet accepting connections from everyone. With some brute force and bad passwords on your part, there will be a hack party in your database. The best thing to do is to block all external connections to your MySQL port (3306) and allow only internal [...]

Could not reserve enough space for object heap Could not create the Java virtual machine What? Not enough RAM to run Java? Having a VPS (virtual private server) means that you are sharing RAM with other VPS owners on the server. The actual hardware of the server may have 4GB RAM for example, however your [...]