Java Implementation Loader Error in Deploying OpenOffice Add-On Project

My interest has been piqued lately: I am curious about developing applications in the OpenOffice framework, using the OpenOffice SDK.

Anyhow, I had some trouble getting the Add-On project tutorial going. Nothing serious, but I just couldn't deploy the add-on for "Could not create Java implementation loader" errors. Yeah, I didn't have a clue as to what that meant.

But with a bit of googling, I found this thread, which pointed me back to this page on the OpenOffice wiki. The solution is right there, in 2. Possible Work-Arounds. I quote:

This usually happens when one wants to debug Java in the office process and therefore has provided the debug options for Java in the options dialog. The Java service of the extension will be registered in a separate process (uno.exe) which also needs to start Java. This Java uses the same settings from the options dialog.
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If there is also a Java running in the office process, then the creation of the virtual machine in the second process will fail. The reason is, that the latter receives the same debug settings. It appears that two virtual machines, although in separate processes, cannot use the same port for debugging. If one changes the port number before adding the extension (and after the Java has been created in the office process), then the extension will be installed properly.

Urgh. I installed OpenOffice with its own JRE, but I am using Java SE 6 Update 10 RC as the default environment in my NetBeans IDE (I am also dabbling in JavaFX!). I surmise, however, that when I use the Project View -> Project Node -> Context Menu -> Create OXT | Deploy Office Extension in NetBeans to launch the project deployer, it accordingly uses the environment settings of the NetBeans JRE/JDK the project is using, and not the JRE that comes packaged with OpenOffice.

So, to make a long story short... In WinXP, locate your user's C:\Documents and Settings\%user%\Application Data\OpenOffice.org2, and just delete it. Re-launching/re-deploying the OpenOffice Add-On project will just work. You'll have to change your Windows Explorer settings to display all hidden directories and files.