Archive for the ‘Uncategorized’ Category

Today I had a weird problem with one of my lxc-containers on a Ubuntu 14.04 Host.. for no reason, the container changed its IP address.. This lead to the other containers not finding the container in question under its IP anymore. I then tried to manually set the IP of the container in /etc/network/interfaces like […]

My Spring Security Facelets/JSF2 Tag library has its own chapter in the new book of Décio Heinzelmann Luckow in his new Book Programação Java para a Web

Describes installing of StarCraft 2 from DVD on a Linux System (Ubuntu) with Wine and how to cope with the problems involved.

Recently, I was looking for a way, to validate Email-Addresses with JSF. I came accross this blog post on Validating an Email Address in JSF It shows, how this would have been done in the old JSF 1.1/1.2 ways… But we’re in 2010 and do it now the following way: 1 2 3 4 […]

Mikael Gueck has posted some tips for Spring to JavaEE6 migration. Quite nice in my opinion, especially the one for JPA N+1 ! Thanks Mikael! And merry xmas everyone!

If you’re trying out JavaMail with JavaEE (6) on Glassfish and get a ClassCastException like these SEVERE: java.lang.ClassCastException: com.sun.enterprise.deployment.MailConfiguration cannot be cast to javax.mail.Session javax.faces.el.EvaluationException: java.lang.ClassCastException: com.sun.enterprise.deployment.MailConfiguration cannot be cast to javax.mail.Session at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke( at com.sun.faces.application.ActionListenerImpl.processAction( at javax.faces.component.UICommand.broadcast( at javax.faces.component.UIViewRoot.broadcastEvents( at javax.faces.component.UIViewRoot.processApplication( at com.sun.faces.lifecycle.InvokeApplicationPhase.execute( at com.sun.faces.lifecycle.Phase.doPhase( at com.sun.faces.lifecycle.LifecycleImpl.execute( at javax.faces.webapp.FacesServlet.service( at org.apache.catalina.core.StandardWrapper.service( … when trying […]

Wow! I can’t believe it! JetBrains just announced, that upcomming IntelliJ Idea 9 will be made open source. Eclipse and NetBeans now definitely have to fear “The most intelligent IDE” in the world! Hooray at JetBrains!

So, after almost 5-6 years of Gmail usage with an address, I decided to go with my own domain and change to Google Apps = the REAL GMAIL. So, I was wondering, if there is a way to migrate my stuff from the “Free Gmail” to the “Google Apps Gmail”, but my (initial) searches […]

Actually for a stupid flash game on facebook I was searching for a way to script mouse-movement and clicks on linus/ Happily, I found a tool that does exactly what I wanted: It’s called “X Do Tool” or short xdotool . A simple make did it for me and I had my script ready. First […]

Yeah, that rocks! The guys from Caucho ported their PHP implementation in Java, named Quercus to the Google App Engine to allow it running on the cloud. Read more at Quercus on the Google App Engine