Month: March 2011

I am building an EJB Singleton that generates and maintains data that I want accessible to multple clients. Since the data is not based on any client interaction but based on the status of a single server-side application I went with an EJB Singleton.

When attempting to invoke a method via the Remote interface on the bean instance from a servlet in a separate .war which was returning a LinkedList of a custom Object that I wrote, I was getting → Continue reading “java.lang.reflect.UndeclaredThrowableException When Attempting to Invoke a Remote Method on an EJB Singleton Instance”

Let’s say you have a server who’s IP address or domain name changes on which you have a Subversion repository. Furthermore, you have checked out the copy over an ssh connection using svn+ssh.

If you have checked-out copies of your repo, and the path to the repo on the file system hasn’t changed, but only the IP or domain name has changed you need to issue the following command in the root of your checked out copy:

svn switch –relocate → Continue reading “Updating the URL of a Subversion Repository in a Currently Checked Out Copy of Your Repository”

I am currently working with virtual machines via Vmware vSphere on a Windows 2008 server. Initially I was unable to get the guest to render full screen and did not have all of the screen resolutions that I would have thought I should. What I was trying to do was have the guest Linux (in this case RedHat Enterprise Linux 6) run full-screen. It was not as straight forward as setting the screen resolution in the VM guest settings dialog.→ Continue reading “Setting the Screen Resolution of a Linux Guest in VMWare vSphere Client”

If you have installed the latest and greatest JBossAS tools into eclipse, try using the following version instead:

?2.2.0.v20110216-175

It seems as though there are some problems with the latest and greatest that causes compilation problems. → Continue reading “Import javax.ejb cannot be resolved Error in Eclipse Helios”