This is a follow-up for the Beware of WebSphere admins post just below – read it to find out how this relates to the jsessionid discussion My first immediate conclusion after the described deployment problems was to ban the use of the jsession cookie in future applications. If the application always includes the jsessionid parameter […]
A lot can go wrong when you deploy a simple Java EE application in IBM WebSphere – even if the application needs nothing but a Servlet container. We recently shipped a JEE application to the customer. Although it was packaged in an EAR file, because the customer required it, it needs nothing but what the […]
I just invested 30min to find tools/libraries which allow me to use PHP scripts instead of Java on the server when the front end is GWT. There are various potential channels through which GWT and PHP can talk to each other. GWT RPC, ideally native or over JSON/XML would certainly be the most obvious choice. […]
Yet another software configuration issue that I wasted a few hours at today. Environment Apache 2.2.13 connect to Tomcat 5.5 with mod_jk (ajp13). Apache requires basic-auth for “/” i.e. for all URLs it serves. Just to be 100% precise, Tomcat runs as a WTP server “inside” Eclipse. However, the fact that it’s not a standalone […]
On some of my Eclipse workspaces the Galileo update failed in the SVN department (Subversive). Activating anything remotely related to Team/SVN features triggered an error. The workspace log contained: !MESSAGE An error occurred while automatically activating bundle org.eclipse.team.svn.core (512). !STACK 0 org.osgi.framework.BundleException: Exception in org.eclipse.team.svn.core.SVNTeamPlugin.start() of bundle org.eclipse.team.svn.core. at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:805) … Caused by: java.io.StreamCorruptedException: invalid […]
Reading a book on the Sun Certified Java Programmer (SCJP) test is interesting and worthwhile, but the test itself is bogus. Says who? I do… I took the SCJP for Java 2 many many years ago and subsequently also passed the SCJD and SCWCD tests. Recently, I took the SCJP 6 upgrade exam. So, I […]
It was only recently after many years of Java programming that I found out that there’s no such thing as a “static inner class”. Such classes are called static nested classes. -> http://www.coderanch.com/t/442837/Programmer-Certification-SCJP/certification/Members-inner-classes
After many hours searching the Internet for GWT widget libraries, analyzing them, and taking notes I thought I might as well publish my findings here. Feel free to comment and point out inconsistencies. At the moment the market seems to be split into two segements: – a few small or medium-size, low-key libraries with little […]
I struggled to update the content of a LONG column in an Oracle database with Spring JDBC. However, (in retrospective) this is more of a general JDBC problem than a Spring problem. The problem first occured when I tried to use a regular SQL update statement to save a few thousand characters in that LONG […]
At the end of an already long day a co-worker and I recently came across the problem that new java.text.SimpleDateFormat(“dd.MM.yyyy”).parse(“03.03.08”); does not return March 3rd, 2008 but March 3rd, 0008 instead. As any decent engineers would, we headed for the respective API documentation right away to see whether there was an explanation for this behavior. […]