Natural Born Coder

Author: doozer

  • Unable to set request character encoding to UTF-8

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    While developing my current application I’ve been seeing dozens of error messages like this: WARNING: PWC4011: Unable to set request character encoding to UTF-8 from context /foo, because request parameters have already been read, or ServletRequest.getReader() has already been called and after searching high and low for a solution I eventually found one.

  • Restarting a Download Manually in Firefox

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    What I’m abount to discuss is probably a fairly rare event but when you are stuck in a corner it’s good to have knowledge like this at your disposal. So, the background: I was downloading a very large video file in Chrome (about 13GB), it had got to about 12.5GB when I noticed that my…

  • Install x2go on Ubuntu Oneiric

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    This article will take you step by step though installing the x2go server on your Ubuntu Oneiric based machine. The x2go server offers remote desktop access to you machine meaning that you can virtually sit at the machine from anywhere in the world. Unlike some other remote desktop systems x2go uses powerful algorithms to compress…

  • Simple CRUD Example – Part 2

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    In the last article I showed you how to create a Debry database and set up a persistence unit. In this article I’ll create a very basic CRUD application. Using JSF 2, JPA 2 and EJB 3.1.

  • Simple CRUD Example – Part 1

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    If you have ever developed a web application you’ll know that most of the code you write is not clever business logic that’s doing complicated calculations but actually fairly simple CRUD (Create, Reuse/Retrieve, Update, Delete) code. Since this is the type of code that gets written all the time it makes sense to know it…

  • Java 7 JDBC-ODBC Bridge on Windows 7 64bit

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    That mouth full of a title sums up quite nicely what I’ve been trying to get working today: a JDBC-ODBC bridge connection to a 32bit Access database running on a 64bit version of Windows 7. Phew, I’m tired just thinking about it.

  • JPA2 Serialized Blob Never Really Null

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    This one got me late on a Friday (actually after work so I was doubly frustrated) and is to do with how JPA2 persists attributes of items that are not of basic Java types and which are also not entities. In order words attributes that implement Serializable and get shoved into BLOB fields.

  • Installing Maven on Ubuntu 11.10

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    doozer
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    For some reason I can’t possibly fathom Linux seems to have a downer on all things Java. Packages are available for most things but they are invariably not the latest version which means performing a manual install – not the end of the world but irritating when you can just install a package for most…

  • Postfix Relay via Gmail

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    I’ve got a Linux bux that I use as a webserver and media centre. Since it runs 24/7 and is world facing I wan’t to be able to monitor it and the easiest way to do that is to have it send me emails about it’s status. For example every night I want to receive…

  • Glassfish 3.1 Exception While Loading

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    I recently switched over to using GlassFish 3.1 and then 3.1.1 from 3.0 and I so wish I hadn’t. The 3.1 release doesn’t seem to have bought any new toys but it’s brought a whole host of bugs and weird behaviour. The latest piece of oddness described here has just wasted a couple of hours…

  • Maven Build Problem with JDK 7

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    I recently upgraded my system from Java 6 to Java 7. Over all I’m really pleased with the improvement I’m seeing from Java 7 but the upgrade has come with a little cost. For some reason I’m getting a failure in NetBeans when I try to deploy one of the web applications that I’m working…

  • Clinical Guard CMS 50EW

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    I recently came down with a very serious case of pneumonia which has left me pretty much stuck in bed for several weeks while I recover. Of course being a fully signed up member of the geek squad I can’t help but monitor my condition so I’ve bought a data logging pulse oximeter. This page…